Initial file creation of code documentation READMEs

* add lazy type and apply to cache events

.bumpversion.cfg

@@ -1,23 +1,27 @@
 [bumpversion]
-current_version = 0.19.0
+current_version = 1.0.1
 parse = (?P<major>\d+)
 	\.(?P<minor>\d+)
 	\.(?P<patch>\d+)
-	((?P<prerelease>[a-z]+)(?P<num>\d+))?
-serialize =
-	{major}.{minor}.{patch}{prerelease}{num}
+	((?P<prekind>a|b|rc)
+	(?P<pre>\d+)  # pre-release version num
+	)?
+serialize = 
+	{major}.{minor}.{patch}{prekind}{pre}
 	{major}.{minor}.{patch}
 commit = False
 tag = False
 
-[bumpversion:part:prerelease]
+[bumpversion:part:prekind]
 first_value = a
-values =
+optional_value = final
+values = 
 	a
 	b
 	rc
+	final
 
-[bumpversion:part:num]
+[bumpversion:part:pre]
 first_value = 1
 
 [bumpversion:file:setup.py]
@@ -26,18 +30,8 @@ first_value = 1
 
 [bumpversion:file:core/dbt/version.py]
 
+[bumpversion:file:core/scripts/create_adapter_plugins.py]
+
 [bumpversion:file:plugins/postgres/setup.py]
 
-[bumpversion:file:plugins/redshift/setup.py]
-
-[bumpversion:file:plugins/snowflake/setup.py]
-
-[bumpversion:file:plugins/bigquery/setup.py]
-
 [bumpversion:file:plugins/postgres/dbt/adapters/postgres/__version__.py]
-
-[bumpversion:file:plugins/redshift/dbt/adapters/redshift/__version__.py]
-
-[bumpversion:file:plugins/snowflake/dbt/adapters/snowflake/__version__.py]
-
-[bumpversion:file:plugins/bigquery/dbt/adapters/bigquery/__version__.py]

.circleci/config.yml

@@ -1,218 +0,0 @@
-version: 2.1
-jobs:
-  unit:
-    docker: &test_only
-      - image: fishtownanalytics/test-container:9
-        environment:
-          DBT_INVOCATION_ENV: circle
-    steps:
-      - checkout
-      - run: tox -e flake8,mypy,unit-py36,unit-py38
-  build-wheels:
-    docker: *test_only
-    steps:
-      - checkout
-      - run:
-          name: Build wheels
-          command: |
-            python3.8 -m venv "${PYTHON_ENV}"
-            export PYTHON_BIN="${PYTHON_ENV}/bin/python"
-            $PYTHON_BIN -m pip install -U pip setuptools
-            $PYTHON_BIN -m pip install -r requirements.txt
-            $PYTHON_BIN -m pip install -r dev_requirements.txt
-            /bin/bash ./scripts/build-wheels.sh
-            $PYTHON_BIN ./scripts/collect-dbt-contexts.py > ./dist/context_metadata.json
-            $PYTHON_BIN ./scripts/collect-artifact-schema.py > ./dist/artifact_schemas.json
-          environment:
-            PYTHON_ENV: /home/tox/build_venv/
-      - store_artifacts:
-          path: ./dist
-          destination: dist
-  integration-postgres-py36:
-    docker: &test_and_postgres
-      - image: fishtownanalytics/test-container:9
-        environment:
-          DBT_INVOCATION_ENV: circle
-      - image: postgres
-        name: database
-        environment: &pgenv
-          POSTGRES_USER: "root"
-          POSTGRES_PASSWORD: "password"
-          POSTGRES_DB: "dbt"
-    steps:
-      - checkout
-      - run: &setupdb
-          name: Setup postgres
-          command: bash test/setup_db.sh
-          environment:
-            PGHOST: database
-            PGUSER: root
-            PGPASSWORD: password
-            PGDATABASE: postgres
-      - run:
-          name: Run tests
-          command: tox -e integration-postgres-py36
-      - store_artifacts:
-          path: ./logs
-  integration-snowflake-py36:
-    docker: *test_only
-    steps:
-      - checkout
-      - run:
-          name: Run tests
-          command: tox -e integration-snowflake-py36
-          no_output_timeout: 1h
-      - store_artifacts:
-          path: ./logs
-  integration-redshift-py36:
-    docker: *test_only
-    steps:
-      - checkout
-      - run:
-          name: Run tests
-          command: tox -e integration-redshift-py36
-      - store_artifacts:
-          path: ./logs
-  integration-bigquery-py36:
-    docker: *test_only
-    steps:
-      - checkout
-      - run:
-          name: Run tests
-          command: tox -e integration-bigquery-py36
-      - store_artifacts:
-          path: ./logs
-  integration-postgres-py38:
-    docker: *test_and_postgres
-    steps:
-      - checkout
-      - run: *setupdb
-      - run:
-          name: Run tests
-          command: tox -e integration-postgres-py38
-      - store_artifacts:
-          path: ./logs
-  integration-snowflake-py38:
-    docker: *test_only
-    steps:
-      - checkout
-      - run:
-          name: Run tests
-          command: tox -e integration-snowflake-py38
-          no_output_timeout: 1h
-      - store_artifacts:
-          path: ./logs
-  integration-redshift-py38:
-    docker: *test_only
-    steps:
-      - checkout
-      - run:
-          name: Run tests
-          command: tox -e integration-redshift-py38
-      - store_artifacts:
-          path: ./logs
-  integration-bigquery-py38:
-    docker: *test_only
-    steps:
-      - checkout
-      - run:
-          name: Run tests
-          command: tox -e integration-bigquery-py38
-      - store_artifacts:
-          path: ./logs
-
-  integration-postgres-py39:
-    docker: *test_and_postgres
-    steps:
-      - checkout
-      - run: *setupdb
-      - run:
-          name: Run tests
-          command: tox -e integration-postgres-py39
-      - store_artifacts:
-          path: ./logs
-  integration-snowflake-py39:
-    docker: *test_only
-    steps:
-      - checkout
-      - run:
-          name: Run tests
-          command: tox -e integration-snowflake-py39
-          no_output_timeout: 1h
-      - store_artifacts:
-          path: ./logs
-  integration-redshift-py39:
-    docker: *test_only
-    steps:
-      - checkout
-      - run:
-          name: Run tests
-          command: tox -e integration-redshift-py39
-      - store_artifacts:
-          path: ./logs
-  integration-bigquery-py39:
-    docker: *test_only
-    steps:
-      - checkout
-      - run:
-          name: Run tests
-          command: tox -e integration-bigquery-py39
-      - store_artifacts:
-          path: ./logs
-
-workflows:
-  version: 2
-  test-everything:
-    jobs:
-      - unit
-      - integration-postgres-py36:
-          requires:
-            - unit
-      - integration-redshift-py36:
-          requires:
-            - integration-postgres-py36
-      - integration-bigquery-py36:
-          requires:
-            - integration-postgres-py36
-      - integration-snowflake-py36:
-          requires:
-            - integration-postgres-py36
-      - integration-postgres-py38:
-          requires:
-            - unit
-      - integration-redshift-py38:
-          requires:
-            - integration-postgres-py38
-      - integration-bigquery-py38:
-          requires:
-            - integration-postgres-py38
-      - integration-snowflake-py38:
-          requires:
-            - integration-postgres-py38
-      - integration-postgres-py39:
-          requires:
-            - unit
-      - integration-redshift-py39:
-          requires:
-            - integration-postgres-py39
-      - integration-bigquery-py39:
-          requires:
-            - integration-postgres-py39
-      # - integration-snowflake-py39:
-      #     requires:
-      #       - integration-postgres-py39
-      - build-wheels:
-          requires:
-            - unit
-            - integration-postgres-py36
-            - integration-redshift-py36
-            - integration-bigquery-py36
-            - integration-snowflake-py36
-            - integration-postgres-py38
-            - integration-redshift-py38
-            - integration-bigquery-py38
-            - integration-snowflake-py38
-            - integration-postgres-py39
-            - integration-redshift-py39
-            - integration-bigquery-py39
-            # - integration-snowflake-py39

.github/CODEOWNERS

@@ -0,0 +1,43 @@
+# This file contains the code owners for the dbt-core repo.
+# PRs will be automatically assigned for review to the associated 
+# team(s) or person(s) that touches any files that are mapped to them.
+#
+# A statement takes precedence over the statements above it so more general
+# assignments are found at the top with specific assignments being lower in
+# the ordering (i.e. catch all assignment should be the first item)
+#
+# Consult GitHub documentation for formatting guidelines:
+# https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/about-code-owners#example-of-a-codeowners-file
+
+# As a default for areas with no assignment, 
+# the core team as a whole will be assigned
+*       @dbt-labs/core
+
+# Changes to GitHub configurations including Actions
+/.github/ @leahwicz
+
+# Language core modules
+/core/dbt/config/     @dbt-labs/core-language
+/core/dbt/context/    @dbt-labs/core-language
+/core/dbt/contracts/  @dbt-labs/core-language
+/core/dbt/deps/       @dbt-labs/core-language
+/core/dbt/parser/     @dbt-labs/core-language
+
+# Execution core modules
+/core/dbt/events/     @dbt-labs/core-execution @dbt-labs/core-language # eventually remove language but they have knowledge here now
+/core/dbt/graph/      @dbt-labs/core-execution
+/core/dbt/task/       @dbt-labs/core-execution
+
+# Adapter interface, scaffold, Postgres plugin
+/core/dbt/adapters    @dbt-labs/core-adapters
+/core/scripts/create_adapter_plugin.py    @dbt-labs/core-adapters
+/plugins/             @dbt-labs/core-adapters
+
+# Global project: default macros, including generic tests + materializations
+/core/dbt/include/global_project    @dbt-labs/core-execution @dbt-labs/core-adapters
+
+# Perf regression testing framework
+# This excludes the test project files itself since those aren't specific 
+# framework changes (excluded by not setting an owner next to it- no owner)
+/performance @nathaniel-may
+/performance/projects

.github/ISSUE_TEMPLATE/bug-report.yml

@@ -0,0 +1,85 @@
+name: 🐞 Bug
+description: Report a bug or an issue you've found with dbt
+title: "[Bug] <title>"
+labels: ["bug", "triage"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to fill out this bug report!
+  - type: checkboxes
+    attributes:
+      label: Is there an existing issue for this?
+      description: Please search to see if an issue already exists for the bug you encountered.
+      options:
+        - label: I have searched the existing issues
+          required: true
+  - type: textarea
+    attributes:
+      label: Current Behavior
+      description: A concise description of what you're experiencing.
+    validations:
+      required: false
+  - type: textarea
+    attributes:
+      label: Expected Behavior
+      description: A concise description of what you expected to happen.
+    validations:
+      required: false
+  - type: textarea
+    attributes:
+      label: Steps To Reproduce
+      description: Steps to reproduce the behavior.
+      placeholder: |
+        1. In this environment...
+        2. With this config...
+        3. Run '...'
+        4. See error...
+    validations:
+      required: false
+  - type: textarea
+    id: logs
+    attributes:
+      label: Relevant log output
+      description: |
+        If applicable, log output to help explain your problem.
+      render: shell
+    validations:
+      required: false
+  - type: textarea
+    attributes:
+      label: Environment
+      description: |
+        examples:
+          - **OS**: Ubuntu 20.04
+          - **Python**: 3.7.2 (`python --version`)
+          - **dbt**: 0.21.0 (`dbt --version`)
+      value: |
+        - OS:
+        - Python:
+        - dbt:
+      render: markdown
+    validations:
+      required: false
+  - type: dropdown
+    id: database
+    attributes:
+      label: What database are you using dbt with?
+      multiple: true
+      options:
+        - postgres
+        - redshift
+        - snowflake
+        - bigquery
+        - other (mention it in "Additional Context")
+    validations:
+      required: false
+  - type: textarea
+    attributes:
+      label: Additional Context
+      description: |
+        Links? References? Anything that will give us more context about the issue you are encountering!
+
+        Tip: You can attach images or log files by clicking this area to highlight it and then dragging files in.
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,41 +0,0 @@
----
-name: Bug report
-about: Report a bug or an issue you've found with dbt
-title: ''
-labels: bug, triage
-assignees: ''
-
----
-
-### Describe the bug
-A clear and concise description of what the bug is. What command did you run? What happened?
-
-### Steps To Reproduce
-In as much detail as possible, please provide steps to reproduce the issue. Sample data that triggers the issue, example model code, etc is all very helpful here.
-
-### Expected behavior
-A clear and concise description of what you expected to happen.
-
-### Screenshots and log output
-If applicable, add screenshots or log output to help explain your problem.
-
-### System information
-**Which database are you using dbt with?**
-- [ ] postgres
-- [ ] redshift
-- [ ] bigquery
-- [ ] snowflake
-- [ ] other (specify: ____________)
-
-
-**The output of `dbt --version`:**
-```
-<output goes here>
-```
-
-**The operating system you're using:**
-
-**The output of `python --version`:**
-
-### Additional context
-Add any other context about the problem here.

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,16 @@
+contact_links:
+  - name: Create an issue for dbt-redshift
+    url: https://github.com/dbt-labs/dbt-redshift/issues/new/choose
+    about: Report a bug or request a feature for dbt-redshift
+  - name: Create an issue for dbt-bigquery
+    url: https://github.com/dbt-labs/dbt-bigquery/issues/new/choose
+    about: Report a bug or request a feature for dbt-bigquery
+  - name: Create an issue for dbt-snowflake
+    url: https://github.com/dbt-labs/dbt-snowflake/issues/new/choose
+    about: Report a bug or request a feature for dbt-snowflake
+  - name: Ask a question or get support
+    url: https://docs.getdbt.com/docs/guides/getting-help
+    about: Ask a question or request support
+  - name: Questions on Stack Overflow
+    url: https://stackoverflow.com/questions/tagged/dbt
+    about: Look at questions/answers at Stack Overflow

.github/ISSUE_TEMPLATE/feature-request.yml

@@ -0,0 +1,49 @@
+name: ✨ Feature
+description: Suggest an idea for dbt
+title: "[Feature] <title>"
+labels: ["enhancement", "triage"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to fill out this feature requests!
+  - type: checkboxes
+    attributes:
+      label: Is there an existing feature request for this?
+      description: Please search to see if an issue already exists for the feature you would like.
+      options:
+        - label: I have searched the existing issues
+          required: true
+  - type: textarea
+    attributes:
+      label: Describe the Feature
+      description: A clear and concise description of what you want to happen.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Describe alternatives you've considered
+      description: |
+        A clear and concise description of any alternative solutions or features you've considered.
+    validations:
+      required: false
+  - type: textarea
+    attributes:
+      label: Who will this benefit?
+      description: |
+        What kind of use case will this feature be useful for? Please be specific and provide examples, this will help us prioritize properly.
+    validations:
+      required: false
+  - type: input
+    attributes:
+      label: Are you interested in contributing this feature?
+      description: Let us know if you want to write some code, and how we can help.
+    validations:
+      required: false
+  - type: textarea
+    attributes:
+      label: Anything else?
+      description: |
+        Links? References? Anything that will give us more context about the feature you are suggesting!
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,23 +0,0 @@
----
-name: Feature request
-about: Suggest an idea for dbt
-title: ''
-labels: enhancement, triage
-assignees: ''
-
----
-
-### Describe the feature
-A clear and concise description of what you want to happen.
-
-### Describe alternatives you've considered
-A clear and concise description of any alternative solutions or features you've considered.
-
-### Additional context
-Is this feature database-specific? Which database(s) is/are relevant? Please include any other relevant context here.
-
-### Who will this benefit?
-What kind of use case will this feature be useful for? Please be specific and provide examples, this will help us prioritize properly.
-
-### Are you interested in contributing this feature?
-Let us know if you want to write some code, and how we can help.

.github/actions/setup-postgres-linux/action.yml

@@ -0,0 +1,10 @@
+name: "Set up postgres (linux)"
+description: "Set up postgres service on linux vm for dbt integration tests"
+runs:
+  using: "composite"
+  steps:
+    - shell: bash
+      run: |
+        sudo systemctl start postgresql.service
+        pg_isready
+        sudo -u postgres bash ${{ github.action_path }}/setup_db.sh

.github/actions/setup-postgres-linux/setup_db.sh

@@ -0,0 +1 @@
+../../../test/setup_db.sh

.github/actions/setup-postgres-macos/action.yml

@@ -0,0 +1,24 @@
+name: "Set up postgres (macos)"
+description: "Set up postgres service on macos vm for dbt integration tests"
+runs:
+  using: "composite"
+  steps:
+    - shell: bash
+      run: |
+        brew services start postgresql
+        echo "Check PostgreSQL service is running"
+        i=10
+        COMMAND='pg_isready'
+        while [ $i -gt -1 ]; do
+            if [ $i == 0 ]; then
+                echo "PostgreSQL service not ready, all attempts exhausted"
+                exit 1
+            fi
+            echo "Check PostgreSQL service status"
+            eval $COMMAND && break
+            echo "PostgreSQL service not ready, wait 10 more sec, attempts left: $i"
+            sleep 10
+            ((i--))
+        done
+        createuser -s postgres
+        bash ${{ github.action_path }}/setup_db.sh

.github/actions/setup-postgres-macos/setup_db.sh

@@ -0,0 +1 @@
+../../../test/setup_db.sh

.github/actions/setup-postgres-windows/action.yml

@@ -0,0 +1,12 @@
+name: "Set up postgres (windows)"
+description: "Set up postgres service on windows vm for dbt integration tests"
+runs:
+  using: "composite"
+  steps:
+    - shell: pwsh
+      run: |
+        $pgService = Get-Service -Name postgresql*
+        Set-Service -InputObject $pgService -Status running -StartupType automatic
+        Start-Process -FilePath "$env:PGBIN\pg_isready" -Wait -PassThru
+        $env:Path += ";$env:PGBIN"
+        bash ${{ github.action_path }}/setup_db.sh

.github/actions/setup-postgres-windows/setup_db.sh

@@ -0,0 +1 @@
+../../../test/setup_db.sh

.github/dependabot.yml

@@ -11,26 +11,11 @@ updates:
     schedule:
       interval: "daily"
     rebase-strategy: "disabled"
-  - package-ecosystem: "pip"
-    directory: "/plugins/bigquery"
-    schedule:
-      interval: "daily"
-    rebase-strategy: "disabled"
   - package-ecosystem: "pip"
     directory: "/plugins/postgres"
     schedule:
       interval: "daily"
     rebase-strategy: "disabled"
-  - package-ecosystem: "pip"
-    directory: "/plugins/redshift"
-    schedule:
-      interval: "daily"
-    rebase-strategy: "disabled"
-  - package-ecosystem: "pip"
-    directory: "/plugins/snowflake"
-    schedule:
-      interval: "daily"
-    rebase-strategy: "disabled"
 
   # docker dependencies
   - package-ecosystem: "docker"

.github/pull_request_template.md

@@ -4,19 +4,18 @@ resolves #
   Include the number of the issue addressed by this PR above if applicable.
   PRs for code changes without an associated issue *will not be merged*.
   See CONTRIBUTING.md for more information.
-
-  Example:
-    resolves #1234
 -->
 
-
 ### Description
 
-<!--- Describe the Pull Request here -->
-
+<!---
+  Describe the Pull Request here. Add any references and info to help reviewers
+  understand your changes. Include any tradeoffs you considered.
+-->
 
 ### Checklist
- - [ ] I have signed the [CLA](https://docs.getdbt.com/docs/contributor-license-agreements)
- - [ ] I have run this code in development and it appears to resolve the stated issue
- - [ ] This PR includes tests, or tests are not required/relevant for this PR
- - [ ] I have updated the `CHANGELOG.md` and added information about my change to the "dbt next" section.
+
+- [ ] I have signed the [CLA](https://docs.getdbt.com/docs/contributor-license-agreements)
+- [ ] I have run this code in development and it appears to resolve the stated issue
+- [ ] This PR includes tests, or tests are not required/relevant for this PR
+- [ ] I have updated the `CHANGELOG.md` and added information about my change

.github/scripts/integration-test-matrix.js

@@ -0,0 +1,95 @@
+module.exports = ({ context }) => {
+  const defaultPythonVersion = "3.8";
+  const supportedPythonVersions = ["3.7", "3.8", "3.9"];
+  const supportedAdapters = ["postgres"];
+
+  // if PR, generate matrix based on files changed and PR labels
+  if (context.eventName.includes("pull_request")) {
+    // `changes` is a list of adapter names that have related
+    // file changes in the PR
+    // ex: ['postgres', 'snowflake']
+    const changes = JSON.parse(process.env.CHANGES);
+    const labels = context.payload.pull_request.labels.map(({ name }) => name);
+    console.log("labels", labels);
+    console.log("changes", changes);
+    const testAllLabel = labels.includes("test all");
+    const include = [];
+
+    for (const adapter of supportedAdapters) {
+      if (
+        changes.includes(adapter) ||
+        testAllLabel ||
+        labels.includes(`test ${adapter}`)
+      ) {
+        for (const pythonVersion of supportedPythonVersions) {
+          if (
+            pythonVersion === defaultPythonVersion ||
+            labels.includes(`test python${pythonVersion}`) ||
+            testAllLabel
+          ) {
+            // always run tests on ubuntu by default
+            include.push({
+              os: "ubuntu-latest",
+              adapter,
+              "python-version": pythonVersion,
+            });
+
+            if (labels.includes("test windows") || testAllLabel) {
+              include.push({
+                os: "windows-latest",
+                adapter,
+                "python-version": pythonVersion,
+              });
+            }
+
+            if (labels.includes("test macos") || testAllLabel) {
+              include.push({
+                os: "macos-latest",
+                adapter,
+                "python-version": pythonVersion,
+              });
+            }
+          }
+        }
+      }
+    }
+
+    console.log("matrix", { include });
+
+    return {
+      include,
+    };
+  }
+  // if not PR, generate matrix of python version, adapter, and operating
+  // system to run integration tests on
+
+  const include = [];
+  // run for all adapters and python versions on ubuntu
+  for (const adapter of supportedAdapters) {
+    for (const pythonVersion of supportedPythonVersions) {
+      include.push({
+        os: 'ubuntu-latest',
+        adapter: adapter,
+        "python-version": pythonVersion,
+      });
+    }
+  }
+
+  // additionally include runs for all adapters, on macos and windows,
+  // but only for the default python version
+  for (const adapter of supportedAdapters) {
+    for (const operatingSystem of ["windows-latest", "macos-latest"]) {
+      include.push({
+        os: operatingSystem,
+        adapter: adapter,
+        "python-version": defaultPythonVersion,
+      });
+    }
+  }
+
+  console.log("matrix", { include });
+
+  return {
+    include,
+  };
+};

.github/workflows/backport.yml

@@ -0,0 +1,34 @@
+# **what?**
+# When a PR is merged, if it has the backport label, it will create 
+# a new PR to backport those changes to the given branch. If it can't
+# cleanly do a backport, it will comment on the merged PR of the failure.
+#
+# Label naming convention: "backport <branch name to backport to>"
+# Example: backport 1.0.latest
+#
+# You MUST "Squash and merge" the original PR or this won't work.
+
+# **why?**
+# Changes sometimes need to be backported to release branches.
+# This automates the backporting process
+
+# **when?**
+# Once a PR is "Squash and merge"'d and it has been correctly labeled
+# according to the naming convention.
+
+name: Backport
+on:
+  pull_request:
+    types:
+      - closed
+      - labeled
+
+jobs:
+  backport:
+    runs-on: ubuntu-18.04
+    name: Backport
+    steps:
+      - name: Backport
+        uses: tibdex/backport@v1.1.1
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/integration.yml

@@ -0,0 +1,222 @@
+# **what?**
+# This workflow runs all integration tests for supported OS
+# and python versions and core adapters. If triggered by PR,
+# the workflow will only run tests for adapters related
+# to code changes. Use the `test all` and `test ${adapter}`
+# label to run all or additional tests. Use `ok to test`
+# label to mark PRs from forked repositories that are safe
+# to run integration tests for. Requires secrets to run
+# against different warehouses.
+
+# **why?**
+# This checks the functionality of dbt from a user's perspective
+# and attempts to catch functional regressions.
+
+# **when?**
+# This workflow will run on every push to a protected branch
+# and when manually triggered. It will also run for all PRs, including
+# PRs from forks. The workflow will be skipped until there is a label
+# to mark the PR as safe to run.
+
+name: Adapter Integration Tests
+
+on:
+  # pushes to release branches
+  push:
+    branches:
+      - "main"
+      - "develop"
+      - "*.latest"
+      - "releases/*"
+  # all PRs, important to note that `pull_request_target` workflows
+  # will run in the context of the target branch of a PR
+  pull_request_target:
+  # manual tigger
+  workflow_dispatch:
+
+# explicitly turn off permissions for `GITHUB_TOKEN`
+permissions: read-all
+
+# will cancel previous workflows triggered by the same event and for the same ref for PRs or same SHA otherwise
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ contains(github.event_name, 'pull_request') && github.event.pull_request.head.ref || github.sha }}
+  cancel-in-progress: true
+
+# sets default shell to bash, for all operating systems
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  # generate test metadata about what files changed and the testing matrix to use
+  test-metadata:
+    # run if not a PR from a forked repository or has a label to mark as safe to test
+    if: >-
+      github.event_name != 'pull_request_target' ||
+      github.event.pull_request.head.repo.full_name == github.repository ||
+      contains(github.event.pull_request.labels.*.name, 'ok to test')
+
+    runs-on: ubuntu-latest
+
+    outputs:
+      matrix: ${{ steps.generate-matrix.outputs.result }}
+
+    steps:
+      - name: Check out the repository (non-PR)
+        if: github.event_name != 'pull_request_target'
+        uses: actions/checkout@v2
+        with:
+          persist-credentials: false
+
+      - name: Check out the repository (PR)
+        if: github.event_name == 'pull_request_target'
+        uses: actions/checkout@v2
+        with:
+          persist-credentials: false
+          ref: ${{ github.event.pull_request.head.sha }}
+
+      - name: Check if relevant files changed
+        # https://github.com/marketplace/actions/paths-changes-filter
+        # For each filter, it sets output variable named by the filter to the text:
+        #  'true' - if any of changed files matches any of filter rules
+        #  'false' - if none of changed files matches any of filter rules
+        # also, returns:
+        #  `changes` - JSON array with names of all filters matching any of the changed files
+        uses: dorny/paths-filter@v2
+        id: get-changes
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          filters: |
+            postgres:
+              - 'core/**'
+              - 'plugins/postgres/**'
+              - 'dev-requirements.txt'
+
+      - name: Generate integration test matrix
+        id: generate-matrix
+        uses: actions/github-script@v4
+        env:
+          CHANGES: ${{ steps.get-changes.outputs.changes }}
+        with:
+          script: |
+            const script = require('./.github/scripts/integration-test-matrix.js')
+            const matrix = script({ context })
+            console.log(matrix)
+            return matrix
+
+  test:
+    name: ${{ matrix.adapter }} / python ${{ matrix.python-version }} / ${{ matrix.os }}
+
+    # run if not a PR from a forked repository or has a label to mark as safe to test
+    # also checks that the matrix generated is not empty
+    if: >-
+      needs.test-metadata.outputs.matrix &&
+      fromJSON( needs.test-metadata.outputs.matrix ).include[0] &&
+      (
+        github.event_name != 'pull_request_target' ||
+        github.event.pull_request.head.repo.full_name == github.repository ||
+        contains(github.event.pull_request.labels.*.name, 'ok to test')
+      )
+
+    runs-on: ${{ matrix.os }}
+
+    needs: test-metadata
+
+    strategy:
+      fail-fast: false
+      matrix: ${{ fromJSON(needs.test-metadata.outputs.matrix) }}
+
+    env:
+      TOXENV: integration-${{ matrix.adapter }}
+      PYTEST_ADDOPTS: "-v --color=yes -n4 --csv integration_results.csv"
+      DBT_INVOCATION_ENV: github-actions
+
+    steps:
+      - name: Check out the repository
+        if: github.event_name != 'pull_request_target'
+        uses: actions/checkout@v2
+        with:
+          persist-credentials: false
+
+      # explicity checkout the branch for the PR,
+      # this is necessary for the `pull_request_target` event
+      - name: Check out the repository (PR)
+        if: github.event_name == 'pull_request_target'
+        uses: actions/checkout@v2
+        with:
+          persist-credentials: false
+          ref: ${{ github.event.pull_request.head.sha }}
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Set up postgres (linux)
+        if: |
+          matrix.adapter == 'postgres' &&
+          runner.os == 'Linux'
+        uses: ./.github/actions/setup-postgres-linux
+
+      - name: Set up postgres (macos)
+        if: |
+          matrix.adapter == 'postgres' &&
+          runner.os == 'macOS'
+        uses: ./.github/actions/setup-postgres-macos
+
+      - name: Set up postgres (windows)
+        if: |
+          matrix.adapter == 'postgres' &&
+          runner.os == 'Windows'
+        uses: ./.github/actions/setup-postgres-windows
+
+      - name: Install python dependencies
+        run: |
+          pip install --user --upgrade pip
+          pip install tox
+          pip --version
+          tox --version
+
+      - name: Run tox (postgres)
+        if: matrix.adapter == 'postgres'
+        run: tox
+
+      - uses: actions/upload-artifact@v2
+        if: always()
+        with:
+          name: logs
+          path: ./logs
+
+      - name: Get current date
+        if: always()
+        id: date
+        run: echo "::set-output name=date::$(date +'%Y-%m-%dT%H_%M_%S')" #no colons allowed for artifacts
+
+      - uses: actions/upload-artifact@v2
+        if: always()
+        with:
+          name: integration_results_${{ matrix.python-version }}_${{ matrix.os }}_${{ matrix.adapter }}-${{ steps.date.outputs.date }}.csv
+          path: integration_results.csv
+
+  require-label-comment:
+    runs-on: ubuntu-latest
+
+    needs: test
+
+    permissions:
+      pull-requests: write
+
+    steps:
+      - name: Needs permission PR comment
+        if: >-
+          needs.test.result == 'skipped' &&
+          github.event_name == 'pull_request_target' &&
+          github.event.pull_request.head.repo.full_name != github.repository
+        uses: unsplash/comment-on-pr@master
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          msg: |
+            "You do not have permissions to run integration tests, @dbt-labs/core "\
+            "needs to label this PR with `ok to test` in order to run integration tests!"
+          check_for_duplicate_msg: true

.github/workflows/jira-creation.yml

@@ -0,0 +1,26 @@
+# **what?**
+# Mirrors issues into Jira. Includes the information: title,
+# GitHub Issue ID and URL
+
+# **why?**
+# Jira is our tool for tracking and we need to see these issues in there
+
+# **when?**
+# On issue creation or when an issue is labeled `Jira`
+
+name: Jira Issue Creation
+
+on:
+  issues:
+    types: [opened, labeled]
+    
+permissions:
+  issues: write
+
+jobs:
+  call-label-action:
+    uses: dbt-labs/jira-actions/.github/workflows/jira-creation.yml@main
+    secrets:
+      JIRA_BASE_URL: ${{ secrets.JIRA_BASE_URL }}
+      JIRA_USER_EMAIL: ${{ secrets.JIRA_USER_EMAIL }}
+      JIRA_API_TOKEN: ${{ secrets.JIRA_API_TOKEN }}

.github/workflows/jira-label.yml

@@ -0,0 +1,27 @@
+# **what?**
+# Calls mirroring Jira label Action. Includes adding a new label
+# to an existing issue or removing a label as well
+
+# **why?**
+# Jira is our tool for tracking and we need to see these labels in there
+
+# **when?**
+# On labels being added or removed from issues
+
+name: Jira Label Mirroring
+
+on:
+  issues:
+    types: [labeled, unlabeled]
+    
+permissions:
+  issues: read
+
+jobs:
+  call-label-action:
+    uses: dbt-labs/jira-actions/.github/workflows/jira-label.yml@main
+    secrets:
+      JIRA_BASE_URL: ${{ secrets.JIRA_BASE_URL }}
+      JIRA_USER_EMAIL: ${{ secrets.JIRA_USER_EMAIL }}
+      JIRA_API_TOKEN: ${{ secrets.JIRA_API_TOKEN }}
+    

.github/workflows/jira-transition.yml

@@ -0,0 +1,24 @@
+# **what?**
+# Transition a Jira issue to a new state
+# Only supports these GitHub Issue transitions:
+#   closed, deleted, reopened
+
+# **why?**
+# Jira needs to be kept up-to-date
+
+# **when?**
+# On issue closing, deletion, reopened
+
+name: Jira Issue Transition
+
+on:
+  issues:
+    types: [closed, deleted, reopened]
+
+jobs:
+  call-label-action:
+    uses: dbt-labs/jira-actions/.github/workflows/jira-transition.yml@main
+    secrets:
+      JIRA_BASE_URL: ${{ secrets.JIRA_BASE_URL }}
+      JIRA_USER_EMAIL: ${{ secrets.JIRA_USER_EMAIL }}
+      JIRA_API_TOKEN: ${{ secrets.JIRA_API_TOKEN }}

.github/workflows/main.yml

@@ -0,0 +1,207 @@
+# **what?**
+# Runs code quality checks, unit tests, and verifies python build on
+# all code commited to the repository. This workflow should not
+# require any secrets since it runs for PRs from forked repos.
+# By default, secrets are not passed to workflows running from
+# a forked repo.
+
+# **why?**
+# Ensure code for dbt meets a certain quality standard.
+
+# **when?**
+# This will run for all PRs, when code is pushed to a release
+# branch, and when manually triggered.
+
+name: Tests and Code Checks
+
+on:
+  push:
+    branches:
+      - "main"
+      - "develop"
+      - "*.latest"
+      - "releases/*"
+  pull_request:
+  workflow_dispatch:
+
+permissions: read-all
+
+# will cancel previous workflows triggered by the same event and for the same ref for PRs or same SHA otherwise
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ contains(github.event_name, 'pull_request') && github.event.pull_request.head.ref || github.sha }}
+  cancel-in-progress: true
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  code-quality:
+    name: ${{ matrix.toxenv }}
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        toxenv: [flake8, mypy]
+
+    env:
+      TOXENV: ${{ matrix.toxenv }}
+      PYTEST_ADDOPTS: "-v --color=yes"
+
+    steps:
+      - name: Check out the repository
+        uses: actions/checkout@v2
+        with:
+          persist-credentials: false
+
+      - name: Set up Python
+        uses: actions/setup-python@v2
+
+      - name: Install python dependencies
+        run: |
+          pip install --user --upgrade pip
+          pip install tox
+          pip --version
+          tox --version
+
+      - name: Run tox
+        run: tox
+
+  unit:
+    name: unit test / python ${{ matrix.python-version }}
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: [3.7, 3.8, 3.9]
+
+    env:
+      TOXENV: "unit"
+      PYTEST_ADDOPTS: "-v --color=yes --csv unit_results.csv"
+
+    steps:
+      - name: Check out the repository
+        uses: actions/checkout@v2
+        with:
+          persist-credentials: false
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install python dependencies
+        run: |
+          pip install --user --upgrade pip
+          pip install tox
+          pip --version
+          tox --version
+
+      - name: Run tox
+        run: tox
+
+      - name: Get current date
+        if: always()
+        id: date
+        run: echo "::set-output name=date::$(date +'%Y-%m-%dT%H_%M_%S')" #no colons allowed for artifacts
+
+      - uses: actions/upload-artifact@v2
+        if: always()
+        with:
+          name: unit_results_${{ matrix.python-version }}-${{ steps.date.outputs.date }}.csv
+          path: unit_results.csv
+
+  build:
+    name: build packages
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out the repository
+        uses: actions/checkout@v2
+        with:
+          persist-credentials: false
+
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.8
+
+      - name: Install python dependencies
+        run: |
+          pip install --user --upgrade pip
+          pip install --upgrade setuptools wheel twine check-wheel-contents
+          pip --version
+
+      - name: Build distributions
+        run: ./scripts/build-dist.sh
+
+      - name: Show distributions
+        run: ls -lh dist/
+
+      - name: Check distribution descriptions
+        run: |
+          twine check dist/*
+
+      - name: Check wheel contents
+        run: |
+          check-wheel-contents dist/*.whl --ignore W007,W008
+
+      - uses: actions/upload-artifact@v2
+        with:
+          name: dist
+          path: dist/
+
+  test-build:
+    name: verify packages / python ${{ matrix.python-version }} / ${{ matrix.os }}
+
+    needs: build
+
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        python-version: [3.7, 3.8, 3.9]
+
+    steps:
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install python dependencies
+        run: |
+          pip install --user --upgrade pip
+          pip install --upgrade wheel
+          pip --version
+
+      - uses: actions/download-artifact@v2
+        with:
+          name: dist
+          path: dist/
+
+      - name: Show distributions
+        run: ls -lh dist/
+
+      - name: Install wheel distributions
+        run: |
+          find ./dist/*.whl -maxdepth 1 -type f | xargs pip install --force-reinstall --find-links=dist/
+
+      - name: Check wheel distributions
+        run: |
+          dbt --version
+
+      - name: Install source distributions
+        # ignore dbt-1.0.0, which intentionally raises an error when installed from source
+        run: |
+          find ./dist/dbt-[a-z]*.gz -maxdepth 1 -type f | xargs pip install --force-reinstall --find-links=dist/
+
+      - name: Check source distributions
+        run: |
+          dbt --version

.github/workflows/performance.yml

@@ -0,0 +1,176 @@
+name: Performance Regression Tests
+# Schedule triggers
+on:
+  # runs twice a day at 10:05am and 10:05pm
+  schedule:
+    - cron: "5 10,22 * * *"
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  # checks fmt of runner code
+  # purposefully not a dependency of any other job
+  # will block merging, but not prevent developing
+  fmt:
+    name: Cargo fmt
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+      - run: rustup component add rustfmt
+      - uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --manifest-path performance/runner/Cargo.toml --all -- --check
+
+  # runs any tests associated with the runner
+  # these tests make sure the runner logic is correct
+  test-runner:
+    name: Test Runner
+    runs-on: ubuntu-latest
+    env:
+      # turns errors into warnings
+      RUSTFLAGS: "-D warnings"
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+      - uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --manifest-path performance/runner/Cargo.toml
+
+  # build an optimized binary to be used as the runner in later steps
+  build-runner:
+    needs: [test-runner]
+    name: Build Runner
+    runs-on: ubuntu-latest
+    env:
+      RUSTFLAGS: "-D warnings"
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+      - uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: --release --manifest-path performance/runner/Cargo.toml
+      - uses: actions/upload-artifact@v2
+        with:
+          name: runner
+          path: performance/runner/target/release/runner
+
+  # run the performance measurements on the current or default branch
+  measure-dev:
+    needs: [build-runner]
+    name: Measure Dev Branch
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout dev
+        uses: actions/checkout@v2
+      - name: Setup Python
+        uses: actions/setup-python@v2.2.2
+        with:
+          python-version: "3.8"
+      - name: install dbt
+        run: pip install -r dev-requirements.txt -r editable-requirements.txt
+      - name: install hyperfine
+        run: wget https://github.com/sharkdp/hyperfine/releases/download/v1.11.0/hyperfine_1.11.0_amd64.deb && sudo dpkg -i hyperfine_1.11.0_amd64.deb
+      - uses: actions/download-artifact@v2
+        with:
+          name: runner
+      - name: change permissions
+        run: chmod +x ./runner
+      - name: run
+        run: ./runner measure -b dev -p ${{ github.workspace }}/performance/projects/
+      - uses: actions/upload-artifact@v2
+        with:
+          name: dev-results
+          path: performance/results/
+
+  # run the performance measurements on the release branch which we use
+  # as a performance baseline. This part takes by far the longest, so
+  # we do everything we can first so the job fails fast.
+  # -----
+  # we need to checkout dbt twice in this job: once for the baseline dbt
+  # version, and once to get the latest regression testing projects,
+  # metrics, and runner code from the develop or current branch so that
+  # the calculations match for both versions of dbt we are comparing.
+  measure-baseline:
+    needs: [build-runner]
+    name: Measure Baseline Branch
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout latest
+        uses: actions/checkout@v2
+        with:
+          ref: "0.20.latest"
+      - name: Setup Python
+        uses: actions/setup-python@v2.2.2
+        with:
+          python-version: "3.8"
+      - name: move repo up a level
+        run: mkdir ${{ github.workspace }}/../baseline/ && cp -r ${{ github.workspace }} ${{ github.workspace }}/../baseline
+      - name: "[debug] ls new dbt location"
+        run: ls ${{ github.workspace }}/../baseline/dbt/
+      # installation creates egg-links so we have to preserve source
+      - name: install dbt from new location
+        run: cd ${{ github.workspace }}/../baseline/dbt/ && pip install -r dev-requirements.txt -r editable-requirements.txt
+      # checkout the current branch to get all the target projects
+      # this deletes the old checked out code which is why we had to copy before
+      - name: checkout dev
+        uses: actions/checkout@v2
+      - name: install hyperfine
+        run: wget https://github.com/sharkdp/hyperfine/releases/download/v1.11.0/hyperfine_1.11.0_amd64.deb && sudo dpkg -i hyperfine_1.11.0_amd64.deb
+      - uses: actions/download-artifact@v2
+        with:
+          name: runner
+      - name: change permissions
+        run: chmod +x ./runner
+      - name: run runner
+        run: ./runner measure -b baseline -p ${{ github.workspace }}/performance/projects/
+      - uses: actions/upload-artifact@v2
+        with:
+          name: baseline-results
+          path: performance/results/
+
+  # detect regressions on the output generated from measuring
+  # the two branches. Exits with non-zero code if a regression is detected.
+  calculate-regressions:
+    needs: [measure-dev, measure-baseline]
+    name: Compare Results
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/download-artifact@v2
+        with:
+          name: dev-results
+      - uses: actions/download-artifact@v2
+        with:
+          name: baseline-results
+      - name: "[debug] ls result files"
+        run: ls
+      - uses: actions/download-artifact@v2
+        with:
+          name: runner
+      - name: change permissions
+        run: chmod +x ./runner
+      - name: make results directory
+        run: mkdir ./final-output/
+      - name: run calculation
+        run: ./runner calculate -r ./ -o ./final-output/
+        # always attempt to upload the results even if there were regressions found
+      - uses: actions/upload-artifact@v2
+        if: ${{ always() }}
+        with:
+          name: final-calculations
+          path: ./final-output/*

.github/workflows/release.yml

@@ -0,0 +1,200 @@
+# **what?**
+# Take the given commit, run unit tests specifically on that sha, build and 
+# package it, and then release to GitHub and PyPi with that specific build
+
+# **why?**
+# Ensure an automated and tested release process
+
+# **when?**
+# This will only run manually with a given sha and version
+
+name: Release to GitHub and PyPi
+
+on:
+  workflow_dispatch:
+    inputs:
+      sha:
+       description: 'The last commit sha in the release'
+       required: true
+      version_number:
+       description: 'The release version number (i.e. 1.0.0b1)'
+       required: true
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  unit:
+    name: Unit test
+
+    runs-on: ubuntu-latest
+
+    env:
+      TOXENV: "unit"
+
+    steps:
+      - name: Check out the repository
+        uses: actions/checkout@v2
+        with:
+          persist-credentials: false
+          ref: ${{ github.event.inputs.sha }}
+
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.8
+
+      - name: Install python dependencies
+        run: |
+          pip install --user --upgrade pip
+          pip install tox
+          pip --version
+          tox --version
+
+      - name: Run tox
+        run: tox
+
+  build:
+    name: build packages
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out the repository
+        uses: actions/checkout@v2
+        with:
+          persist-credentials: false
+          ref: ${{ github.event.inputs.sha }}
+
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.8
+
+      - name: Install python dependencies
+        run: |
+          pip install --user --upgrade pip
+          pip install --upgrade setuptools wheel twine check-wheel-contents
+          pip --version
+
+      - name: Build distributions
+        run: ./scripts/build-dist.sh
+
+      - name: Show distributions
+        run: ls -lh dist/
+
+      - name: Check distribution descriptions
+        run: |
+          twine check dist/*
+
+      - name: Check wheel contents
+        run: |
+          check-wheel-contents dist/*.whl --ignore W007,W008
+
+      - uses: actions/upload-artifact@v2
+        with:
+          name: dist
+          path: |
+            dist/
+            !dist/dbt-${{github.event.inputs.version_number}}.tar.gz
+
+  test-build:
+    name: verify packages
+
+    needs: [build, unit]
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.8
+
+      - name: Install python dependencies
+        run: |
+          pip install --user --upgrade pip
+          pip install --upgrade wheel
+          pip --version
+
+      - uses: actions/download-artifact@v2
+        with:
+          name: dist
+          path: dist/
+
+      - name: Show distributions
+        run: ls -lh dist/
+
+      - name: Install wheel distributions
+        run: |
+          find ./dist/*.whl -maxdepth 1 -type f | xargs pip install --force-reinstall --find-links=dist/
+
+      - name: Check wheel distributions
+        run: |
+          dbt --version
+
+      - name: Install source distributions
+        run: |
+          find ./dist/*.gz -maxdepth 1 -type f | xargs pip install --force-reinstall --find-links=dist/
+
+      - name: Check source distributions
+        run: |
+          dbt --version
+
+
+  github-release:
+    name: GitHub Release 
+
+    needs: test-build
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/download-artifact@v2
+        with:
+          name: dist
+          path: '.'
+          
+      # Need to set an output variable because env variables can't be taken as input
+      # This is needed for the next step with releasing to GitHub
+      - name: Find release type
+        id: release_type
+        env:
+          IS_PRERELEASE: ${{ contains(github.event.inputs.version_number, 'rc') ||  contains(github.event.inputs.version_number, 'b') }}
+        run: |
+          echo ::set-output name=isPrerelease::$IS_PRERELEASE
+
+      - name: Creating GitHub Release
+        uses: softprops/action-gh-release@v1
+        with:
+          name: dbt-core v${{github.event.inputs.version_number}}
+          tag_name: v${{github.event.inputs.version_number}}
+          prerelease: ${{ steps.release_type.outputs.isPrerelease }}
+          target_commitish: ${{github.event.inputs.sha}}
+          body: |
+            [Release notes](https://github.com/dbt-labs/dbt-core/blob/main/CHANGELOG.md)
+          files: |
+            dbt_postgres-${{github.event.inputs.version_number}}-py3-none-any.whl
+            dbt_core-${{github.event.inputs.version_number}}-py3-none-any.whl
+            dbt-postgres-${{github.event.inputs.version_number}}.tar.gz
+            dbt-core-${{github.event.inputs.version_number}}.tar.gz
+          
+  pypi-release:
+    name: Pypi release
+
+    runs-on: ubuntu-latest
+
+    needs: github-release
+
+    environment: PypiProd
+    steps:    
+      - uses: actions/download-artifact@v2
+        with:
+          name: dist
+          path: 'dist'
+      
+      - name: Publish distribution to PyPI
+        uses: pypa/gh-action-pypi-publish@v1.4.2
+        with:
+          password: ${{ secrets.PYPI_API_TOKEN }}

.github/workflows/schema-check.yml

@@ -0,0 +1,87 @@
+# **what?**
+# Compares the schema of the dbt version of the given ref vs 
+# the latest official schema releases found in schemas.getdbt.com.
+# If there are differences, the workflow will fail and upload the
+# diff as an artifact. The metadata team should be alerted to the change.
+#
+# **why?**
+# Reaction work may need to be done if artifact schema changes
+# occur so we want to proactively alert to it.
+#
+# **when?**
+# On pushes to `develop` and release branches. Manual runs are also enabled.
+name: Artifact Schema Check
+
+on:
+  workflow_dispatch:
+  pull_request: #TODO: remove before merging
+  push:
+    branches:
+      - "develop"
+      - "*.latest"
+      - "releases/*"
+
+env:
+  LATEST_SCHEMA_PATH: ${{ github.workspace }}/new_schemas
+  SCHEMA_DIFF_ARTIFACT: ${{ github.workspace }}//schema_schanges.txt
+  DBT_REPO_DIRECTORY: ${{ github.workspace }}/dbt
+  SCHEMA_REPO_DIRECTORY: ${{ github.workspace }}/schemas.getdbt.com
+
+jobs:
+  checking-schemas:
+    name: "Checking schemas"
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.8
+                
+      - name: Checkout dbt repo
+        uses: actions/checkout@v2.3.4
+        with:
+            path: ${{ env.DBT_REPO_DIRECTORY }}
+                       
+      - name: Checkout schemas.getdbt.com repo
+        uses: actions/checkout@v2.3.4    
+        with: 
+          repository: dbt-labs/schemas.getdbt.com
+          ref: 'main'
+          ssh-key: ${{ secrets.SCHEMA_SSH_PRIVATE_KEY }}
+          path: ${{ env.SCHEMA_REPO_DIRECTORY }}
+        
+      - name: Generate current schema
+        run: |
+          cd ${{ env.DBT_REPO_DIRECTORY }}
+          python3 -m venv env
+          source env/bin/activate
+          pip install --upgrade pip
+          pip install -r dev-requirements.txt -r editable-requirements.txt
+          python scripts/collect-artifact-schema.py --path ${{ env.LATEST_SCHEMA_PATH }}
+          
+      # Copy generated schema files into the schemas.getdbt.com repo
+      # Do a git diff to find any changes
+      # Ignore any date or version changes though
+      - name: Compare schemas
+        run: |
+          cp -r ${{ env.LATEST_SCHEMA_PATH }}/dbt ${{ env.SCHEMA_REPO_DIRECTORY }}
+          cd ${{ env.SCHEMA_REPO_DIRECTORY }}
+          diff_results=$(git diff -I='*[0-9]{4}-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])T' \
+          -I='*[0-9]{1}.[0-9]{2}.[0-9]{1}(rc[0-9]|b[0-9]| )' --compact-summary)
+          if [[ $(echo diff_results) ]]; then
+            echo $diff_results
+            echo "Schema changes detected!"
+            git diff -I='*[0-9]{4}-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])T' \
+              -I='*[0-9]{1}.[0-9]{2}.[0-9]{1}(rc[0-9]|b[0-9]| )' > ${{ env.SCHEMA_DIFF_ARTIFACT }}
+            exit 1
+          else
+            echo "No schema changes detected"
+          fi
+
+      - name: Upload schema diff
+        uses: actions/upload-artifact@v2.2.4
+        if: ${{ failure() }}
+        with:
+          name: 'schema_schanges.txt'
+          path: '${{ env.SCHEMA_DIFF_ARTIFACT }}'

.github/workflows/stale.yml

@@ -0,0 +1,18 @@
+name: "Close stale issues and PRs"
+on:
+  schedule:
+    - cron: "30 1 * * *"
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    steps:
+      # pinned at v4 (https://github.com/actions/stale/releases/tag/v4.0.0)
+      - uses: actions/stale@cdf15f641adb27a71842045a94023bef6945e3aa
+        with:
+          stale-issue-message: "This issue has been marked as Stale because it has been open for 180 days with no activity. If you would like the issue to remain open, please remove the stale label or comment on the issue, or it will be closed in 7 days."
+          stale-pr-message: "This PR has been marked as Stale because it has been open for 180 days with no activity. If you would like the PR to remain open, please remove the stale label or comment on the PR, or it will be closed in 7 days."
+          # mark issues/PRs stale when they haven't seen activity in 180 days
+          days-before-stale: 180
+          # ignore checking issues with the following labels
+          exempt-issue-labels: "epic,discussion"

.github/workflows/structured-logging-schema-check.yml

@@ -0,0 +1,71 @@
+# This Action checks makes a dbt run to sample json structured logs
+# and checks that they conform to the currently documented schema.
+# 
+# If this action fails it either means we have unintentionally deviated
+# from our documented structured logging schema, or we need to bump the
+# version of our structured logging and add new documentation to
+# communicate these changes.
+
+
+name: Structured Logging Schema Check
+on:
+  push:
+    branches:
+      - "main"
+      - "*.latest"
+      - "releases/*"
+  pull_request:
+  workflow_dispatch:
+
+permissions: read-all
+
+jobs:
+  # run the performance measurements on the current or default branch
+  test-schema:
+    name: Test Log Schema
+    runs-on: ubuntu-latest
+    env:
+      # turns warnings into errors
+      RUSTFLAGS: "-D warnings"
+      # points tests to the log file
+      LOG_DIR: "/home/runner/work/dbt-core/dbt-core/logs"
+      # tells integration tests to output into json format
+      DBT_LOG_FORMAT: 'json'
+    steps:
+
+      - name: checkout dev
+        uses: actions/checkout@v2
+        with:
+          persist-credentials: false
+
+      - name: Setup Python
+        uses: actions/setup-python@v2.2.2
+        with:
+          python-version: "3.8"
+
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+
+      - name: install dbt
+        run: pip install -r dev-requirements.txt -r editable-requirements.txt
+
+      - name: Set up postgres
+        uses: ./.github/actions/setup-postgres-linux
+
+      - name: ls
+        run: ls
+
+      # integration tests generate a ton of logs in different files. the next step will find them all.
+      # we actually care if these pass, because the normal test run doesn't usually include many json log outputs
+      - name: Run integration tests
+        run: tox -e py38-postgres -- -nauto
+
+      # apply our schema tests to every log event from the previous step
+      # skips any output that isn't valid json
+      - uses: actions-rs/cargo@v1
+        with:
+          command: run
+          args: --manifest-path test/interop/log_parsing/Cargo.toml

.github/workflows/version-bump.yml

@@ -0,0 +1,109 @@
+# **what?**
+# This workflow will take a version number and a dry run flag. With that
+# it will run versionbump to update the version number everywhere in the 
+# code base and then generate an update Docker requirements file. If this
+# is a dry run, a draft PR will open with the changes. If this isn't a dry
+# run, the changes will be committed to the branch this is run on.
+
+# **why?**
+# This is to aid in releasing dbt and making sure we have updated 
+# the versions and Docker requirements in all places.
+
+# **when?**
+# This is triggered either manually OR 
+# from the repository_dispatch event "version-bump" which is sent from
+# the dbt-release repo Action
+
+name: Version Bump
+
+on:
+  workflow_dispatch:
+    inputs:
+      version_number:
+       description: 'The version number to bump to'
+       required: true
+      is_dry_run:
+       description: 'Creates a draft PR to allow testing instead of committing to a branch'
+       required: true
+       default: 'true'  
+  repository_dispatch:
+    types: [version-bump]
+  
+jobs:
+  bump:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out the repository
+        uses: actions/checkout@v2
+
+      - name: Set version and dry run values
+        id: variables
+        env:
+          VERSION_NUMBER: "${{ github.event.client_payload.version_number == '' && github.event.inputs.version_number || github.event.client_payload.version_number }}"
+          IS_DRY_RUN: "${{ github.event.client_payload.is_dry_run == '' && github.event.inputs.is_dry_run || github.event.client_payload.is_dry_run }}"
+        run: |
+          echo Repository dispatch event version: ${{ github.event.client_payload.version_number }}
+          echo Repository dispatch event dry run: ${{ github.event.client_payload.is_dry_run }}
+          echo Workflow dispatch event version: ${{ github.event.inputs.version_number }}
+          echo Workflow dispatch event dry run: ${{ github.event.inputs.is_dry_run }}
+          echo ::set-output name=VERSION_NUMBER::$VERSION_NUMBER
+          echo ::set-output name=IS_DRY_RUN::$IS_DRY_RUN
+
+      - uses: actions/setup-python@v2
+        with:
+          python-version: "3.8"
+
+      - name: Install python dependencies
+        run: |
+          python3 -m venv env
+          source env/bin/activate
+          pip install --upgrade pip     
+          
+      - name: Create PR branch
+        if: ${{ steps.variables.outputs.IS_DRY_RUN == 'true' }}
+        run: |
+          git checkout -b bumping-version/${{steps.variables.outputs.VERSION_NUMBER}}_$GITHUB_RUN_ID
+          git push origin bumping-version/${{steps.variables.outputs.VERSION_NUMBER}}_$GITHUB_RUN_ID
+          git branch --set-upstream-to=origin/bumping-version/${{steps.variables.outputs.VERSION_NUMBER}}_$GITHUB_RUN_ID bumping-version/${{steps.variables.outputs.VERSION_NUMBER}}_$GITHUB_RUN_ID
+      
+      # - name: Generate Docker requirements
+      #  run: |
+      #    source env/bin/activate
+      #    pip install -r requirements.txt 
+      #    pip freeze -l > docker/requirements/requirements.txt
+      #    git status
+
+      - name: Bump version
+        run: |
+          source env/bin/activate
+          pip install -r dev-requirements.txt 
+          env/bin/bumpversion --allow-dirty --new-version ${{steps.variables.outputs.VERSION_NUMBER}} major
+          git status
+
+      - name: Commit version bump directly
+        uses: EndBug/add-and-commit@v7
+        if: ${{ steps.variables.outputs.IS_DRY_RUN == 'false' }}
+        with:
+          author_name: 'Github Build Bot'
+          author_email: 'buildbot@fishtownanalytics.com'
+          message: 'Bumping version to ${{steps.variables.outputs.VERSION_NUMBER}}'
+
+      - name: Commit version bump to branch
+        uses: EndBug/add-and-commit@v7
+        if: ${{ steps.variables.outputs.IS_DRY_RUN == 'true' }}
+        with:
+          author_name: 'Github Build Bot'
+          author_email: 'buildbot@fishtownanalytics.com'
+          message: 'Bumping version to ${{steps.variables.outputs.VERSION_NUMBER}}'
+          branch: 'bumping-version/${{steps.variables.outputs.VERSION_NUMBER}}_${{GITHUB.RUN_ID}}'
+          push: 'origin origin/bumping-version/${{steps.variables.outputs.VERSION_NUMBER}}_${{GITHUB.RUN_ID}}'
+
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v3
+        if: ${{ steps.variables.outputs.IS_DRY_RUN == 'true' }}
+        with:
+          author: 'Github Build Bot <buildbot@fishtownanalytics.com>'
+          draft: true
+          base: ${{github.ref}}
+          title: 'Bumping version to ${{steps.variables.outputs.VERSION_NUMBER}}'
+          branch: 'bumping-version/${{steps.variables.outputs.VERSION_NUMBER}}_${{GITHUB.RUN_ID}}'

.gitignore

@@ -85,6 +85,7 @@ target/
 
 # pycharm
 .idea/
+venv/
 
 # AWS credentials
 .aws/

.pre-commit-config.yaml

@@ -1,20 +0,0 @@
-repos:
--   repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v2.3.0
-    hooks:
-    -   id: check-yaml
-    -   id: end-of-file-fixer
-    -   id: trailing-whitespace
--   repo: https://github.com/psf/black
-    rev: 20.8b1
-    hooks:
-    -   id: black
--   repo: https://gitlab.com/PyCQA/flake8
-    rev: 3.9.0
-    hooks:
-    -   id: flake8
--   repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v0.812
-    hooks:
-    -   id: mypy
-        files: ^core/dbt/

ARCHITECTURE.md

@@ -3,30 +3,29 @@ The core function of dbt is SQL compilation and execution. Users create projects
 ## dbt-core
 
 Most of the python code in the repository is within the `core/dbt` directory. Currently the main subdirectories are:
-- [`adapters`](core/dbt/adapters): Define base classes for behavior that is likely to differ across databases
-- [`clients`](core/dbt/clients): Interface with dependencies (agate, jinja) or across operating systems
-- [`config`](core/dbt/config): Reconcile user-supplied configuration from connection profiles, project files, and Jinja macros
-- [`context`](core/dbt/context): Build and expose dbt-specific Jinja functionality
-- [`contracts`](core/dbt/contracts): Define Python objects (dataclasses) that dbt expects to create and validate
-- [`deps`](core/dbt/deps): Package installation and dependency resolution
-- [`graph`](core/dbt/graph): Produce a `networkx` DAG of project resources, and selecting those resources given user-supplied criteria
-- [`include`](core/dbt/include): The dbt "global project," which defines default implementations of Jinja2 macros
-- [`parser`](core/dbt/parser): Read project files, validate, construct python objects
-- [`rpc`](core/dbt/rpc): Provide remote procedure call server for invoking dbt, following JSON-RPC 2.0 spec
-- [`task`](core/dbt/task): Set forth the actions that dbt can perform when invoked
+
+- [`adapters`](core/dbt/adapters/README.md): Define base classes for behavior that is likely to differ across databases
+- [`clients`](core/dbt/clients/README.md): Interface with dependencies (agate, jinja) or across operating systems
+- [`config`](core/dbt/config/README.md): Reconcile user-supplied configuration from connection profiles, project files, and Jinja macros
+- [`context`](core/dbt/context/README.md): Build and expose dbt-specific Jinja functionality
+- [`contracts`](core/dbt/contracts/README.md): Define Python objects (dataclasses) that dbt expects to create and validate
+- [`deps`](core/dbt/deps/README.md): Package installation and dependency resolution
+- [`events`](core/dbt/events/README.md): Logging events
+- [`graph`](core/dbt/graph/README.md): Produce a `networkx` DAG of project resources, and selecting those resources given user-supplied criteria
+- [`include`](core/dbt/include/README.md): The dbt "global project," which defines default implementations of Jinja2 macros
+- [`parser`](core/dbt/parser/README.md): Read project files, validate, construct python objects
+- [`task`](core/dbt/task/README.md): Set forth the actions that dbt can perform when invoked
 
 ### Invoking dbt
 
-There are two supported ways of invoking dbt: from the command line and using an RPC server.
-
-The "tasks" map to top-level dbt commands. So `dbt run` => task.run.RunTask, etc. Some are more like abstract base classes (GraphRunnableTask, for example) but all the concrete types outside of task/rpc should map to tasks. Currently one executes at a time. The tasks kick off their “Runners” and those do execute in parallel. The parallelism is managed via a thread pool, in GraphRunnableTask.
+The "tasks" map to top-level dbt commands. So `dbt run` => task.run.RunTask, etc. Some are more like abstract base classes (GraphRunnableTask, for example) but all the concrete types outside of task should map to tasks. Currently one executes at a time. The tasks kick off their “Runners” and those do execute in parallel. The parallelism is managed via a thread pool, in GraphRunnableTask.
 
 core/dbt/include/index.html
 This is the docs website code. It comes from the dbt-docs repository, and is generated when a release is packaged.
 
 ## Adapters
 
-dbt uses an adapter-plugin pattern to extend support to different databases, warehouses, query engines, etc. The four core adapters that are in the main repository, contained within the [`plugins`](plugins) subdirectory, are: Postgres Redshift, Snowflake and BigQuery. Other warehouses use adapter plugins defined in separate repositories (e.g. [dbt-spark](https://github.com/fishtown-analytics/dbt-spark), [dbt-presto](https://github.com/fishtown-analytics/dbt-presto)).
+dbt uses an adapter-plugin pattern to extend support to different databases, warehouses, query engines, etc. For testing and development purposes, the dbt-postgres plugin lives alongside the dbt-core codebase, in the [`plugins`](plugins) subdirectory. Like other adapter plugins, it is a self-contained codebase and package that builds on top of dbt-core.
 
 Each adapter is a mix of python, Jinja2, and SQL. The adapter code also makes heavy use of Jinja2 to wrap modular chunks of SQL functionality, define default implementations, and allow plugins to override it.
 
@@ -46,4 +45,4 @@ The [`test/`](test/) subdirectory includes unit and integration tests that run a
 
 - [docker](docker/): All dbt versions are published as Docker images on DockerHub. This subfolder contains the `Dockerfile` (constant) and `requirements.txt` (one for each version).
 - [etc](etc/): Images for README
-- [scripts](scripts/): Helper scripts for testing, releasing, and producing JSON schemas. These are not included in distributions of dbt, not are they rigorously tested—they're just handy tools for the dbt maintainers :)
+- [scripts](scripts/): Helper scripts for testing, releasing, and producing JSON schemas. These are not included in distributions of dbt, nor are they rigorously tested—they're just handy tools for the dbt maintainers :)

CONTRIBUTING.md

@@ -1,118 +1,121 @@
-# Contributing to dbt
+# Contributing to `dbt`
 
 1. [About this document](#about-this-document)
 2. [Proposing a change](#proposing-a-change)
 3. [Getting the code](#getting-the-code)
 4. [Setting up an environment](#setting-up-an-environment)
-5. [Running dbt in development](#running-dbt-in-development)
+5. [Running `dbt` in development](#running-dbt-in-development)
 6. [Testing](#testing)
 7. [Submitting a Pull Request](#submitting-a-pull-request)
 
 ## About this document
 
-This document is a guide intended for folks interested in contributing to dbt. Below, we document the process by which members of the community should create issues and submit pull requests (PRs) in this repository. It is not intended as a guide for using dbt, and it assumes a certain level of familiarity with Python concepts such as virtualenvs, `pip`, python modules, filesystems, and so on. This guide assumes you are using macOS or Linux and are comfortable with the command line.
+This document is a guide intended for folks interested in contributing to `dbt-core`. Below, we document the process by which members of the community should create issues and submit pull requests (PRs) in this repository. It is not intended as a guide for using `dbt-core`, and it assumes a certain level of familiarity with Python concepts such as virtualenvs, `pip`, python modules, filesystems, and so on. This guide assumes you are using macOS or Linux and are comfortable with the command line.
 
-If you're new to python development or contributing to open-source software, we encourage you to read this document from start to finish. If you get stuck, drop us a line in the #development channel on [slack](community.getdbt.com).
+If you're new to python development or contributing to open-source software, we encourage you to read this document from start to finish. If you get stuck, drop us a line in the `#dbt-core-development` channel on [slack](https://community.getdbt.com).
+
+#### Adapters
+
+If you have an issue or code change suggestion related to a specific database [adapter](https://docs.getdbt.com/docs/available-adapters); please refer to that supported databases seperate repo for those contributions.
 
 ### Signing the CLA
 
-Please note that all contributors to dbt must sign the [Contributor License Agreement](https://docs.getdbt.com/docs/contributor-license-agreements) to have their Pull Request merged into the dbt codebase. If you are unable to sign the CLA, then the dbt maintainers will unfortunately be unable to merge your Pull Request. You are, however, welcome to open issues and comment on existing ones.
+Please note that all contributors to `dbt-core` must sign the [Contributor License Agreement](https://docs.getdbt.com/docs/contributor-license-agreements) to have their Pull Request merged into the `dbt-core` codebase. If you are unable to sign the CLA, then the `dbt-core` maintainers will unfortunately be unable to merge your Pull Request. You are, however, welcome to open issues and comment on existing ones.
 
 ## Proposing a change
 
-dbt is Apache 2.0-licensed open source software. dbt is what it is today because community members like you have opened issues, provided feedback, and contributed to the knowledge loop for the entire communtiy. Whether you are a seasoned open source contributor or a first-time committer, we welcome and encourage you to contribute code, documentation, ideas, or problem statements to this project.
+`dbt-core` is Apache 2.0-licensed open source software. `dbt-core` is what it is today because community members like you have opened issues, provided feedback, and contributed to the knowledge loop for the entire communtiy. Whether you are a seasoned open source contributor or a first-time committer, we welcome and encourage you to contribute code, documentation, ideas, or problem statements to this project.
 
 ### Defining the problem
 
-If you have an idea for a new feature or if you've discovered a bug in dbt, the first step is to open an issue. Please check the list of [open issues](https://github.com/fishtown-analytics/dbt/issues) before creating a new one. If you find a relevant issue, please add a comment to the open issue instead of creating a new one. There are hundreds of open issues in this repository and it can be hard to know where to look for a relevant open issue. **The dbt maintainers are always happy to point contributors in the right direction**, so please err on the side of documenting your idea in a new issue if you are unsure where a problem statement belongs.
+If you have an idea for a new feature or if you've discovered a bug in `dbt-core`, the first step is to open an issue. Please check the list of [open issues](https://github.com/dbt-labs/dbt-core/issues) before creating a new one. If you find a relevant issue, please add a comment to the open issue instead of creating a new one. There are hundreds of open issues in this repository and it can be hard to know where to look for a relevant open issue. **The `dbt-core` maintainers are always happy to point contributors in the right direction**, so please err on the side of documenting your idea in a new issue if you are unsure where a problem statement belongs.
 
-**Note:** All community-contributed Pull Requests _must_ be associated with an open issue. If you submit a Pull Request that does not pertain to an open issue, you will be asked to create an issue describing the problem before the Pull Request can be reviewed.
+> **Note:** All community-contributed Pull Requests _must_ be associated with an open issue. If you submit a Pull Request that does not pertain to an open issue, you will be asked to create an issue describing the problem before the Pull Request can be reviewed.
 
 ### Discussing the idea
 
-After you open an issue, a dbt maintainer will follow up by commenting on your issue (usually within 1-3 days) to explore your idea further and advise on how to implement the suggested changes. In many cases, community members will chime in with their own thoughts on the problem statement. If you as the issue creator are interested in submitting a Pull Request to address the issue, you should indicate this in the body of the issue. The dbt maintainers are _always_ happy to help contributors with the implementation of fixes and features, so please also indicate if there's anything you're unsure about or could use guidance around in the issue.
+After you open an issue, a `dbt-core` maintainer will follow up by commenting on your issue (usually within 1-3 days) to explore your idea further and advise on how to implement the suggested changes. In many cases, community members will chime in with their own thoughts on the problem statement. If you as the issue creator are interested in submitting a Pull Request to address the issue, you should indicate this in the body of the issue. The `dbt-core` maintainers are _always_ happy to help contributors with the implementation of fixes and features, so please also indicate if there's anything you're unsure about or could use guidance around in the issue.
 
 ### Submitting a change
 
-If an issue is appropriately well scoped and describes a beneficial change to the dbt codebase, then anyone may submit a Pull Request to implement the functionality described in the issue. See the sections below on how to do this.
+If an issue is appropriately well scoped and describes a beneficial change to the `dbt-core` codebase, then anyone may submit a Pull Request to implement the functionality described in the issue. See the sections below on how to do this.
 
-The dbt maintainers will add a `good first issue` label if an issue is suitable for a first-time contributor. This label often means that the required code change is small, limited to one database adapter, or a net-new addition that does not impact existing functionality. You can see the list of currently open issues on the [Contribute](https://github.com/fishtown-analytics/dbt/contribute) page.
+The `dbt-core` maintainers will add a `good first issue` label if an issue is suitable for a first-time contributor. This label often means that the required code change is small, limited to one database adapter, or a net-new addition that does not impact existing functionality. You can see the list of currently open issues on the [Contribute](https://github.com/dbt-labs/dbt-core/contribute) page.
 
 Here's a good workflow:
 - Comment on the open issue, expressing your interest in contributing the required code change
 - Outline your planned implementation. If you want help getting started, ask!
-- Follow the steps outlined below to develop locally. Once you have opened a PR, one of the dbt maintainers will work with you to review your code.
-- Add a test! Tests are crucial for both fixes and new features alike. We want to make sure that code works as intended, and that it avoids any bugs  previously encountered. Currently, the best resource for understanding dbt's [unit](test/unit) and [integration](test/integration) tests is the tests themselves. One of the maintainers can help by pointing out relevant examples.
+- Follow the steps outlined below to develop locally. Once you have opened a PR, one of the `dbt-core` maintainers will work with you to review your code.
+- Add a test! Tests are crucial for both fixes and new features alike. We want to make sure that code works as intended, and that it avoids any bugs  previously encountered. Currently, the best resource for understanding `dbt-core`'s [unit](test/unit) and [integration](test/integration) tests is the tests themselves. One of the maintainers can help by pointing out relevant examples.
 
-In some cases, the right resolution to an open issue might be tangential to the dbt codebase. The right path forward might be a documentation update or a change that can be made in user-space. In other cases, the issue might describe functionality that the dbt maintainers are unwilling or unable to incorporate into the dbt codebase. When it is determined that an open issue describes functionality that will not translate to a code change in the dbt repository, the issue will be tagged with the `wontfix` label (see below) and closed.
+In some cases, the right resolution to an open issue might be tangential to the `dbt-core` codebase. The right path forward might be a documentation update or a change that can be made in user-space. In other cases, the issue might describe functionality that the `dbt-core` maintainers are unwilling or unable to incorporate into the `dbt-core` codebase. When it is determined that an open issue describes functionality that will not translate to a code change in the `dbt-core` repository, the issue will be tagged with the `wontfix` label (see below) and closed.
 
 ### Using issue labels
 
-The dbt maintainers use labels to categorize open issues. Some labels indicate the databases impacted by the issue, while others describe the domain in the dbt codebase germane to the discussion. While most of these labels are self-explanatory (eg. `snowflake` or `bigquery`), there are others that are worth describing.
+The `dbt-core` maintainers use labels to categorize open issues. Most labels describe the domain in the `dbt-core` codebase germane to the discussion.
 
 | tag | description |
 | --- | ----------- |
-| [triage](https://github.com/fishtown-analytics/dbt/labels/triage) | This is a new issue which has not yet been reviewed by a dbt maintainer. This label is removed when a maintainer reviews and responds to the issue. |
-| [bug](https://github.com/fishtown-analytics/dbt/labels/bug) | This issue represents a defect or regression in dbt |
-| [enhancement](https://github.com/fishtown-analytics/dbt/labels/enhancement) | This issue represents net-new functionality in dbt |
-| [good first issue](https://github.com/fishtown-analytics/dbt/labels/good%20first%20issue) | This issue does not require deep knowledge of the dbt codebase to implement. This issue is appropriate for a first-time contributor. |
-| [help wanted](https://github.com/fishtown-analytics/dbt/labels/help%20wanted) / [discussion](https://github.com/fishtown-analytics/dbt/labels/discussion) | Conversation around this issue in ongoing, and there isn't yet a clear path forward. Input from community members is most welcome. |
-| [duplicate](https://github.com/fishtown-analytics/dbt/issues/duplicate) | This issue is functionally identical to another open issue. The dbt maintainers will close this issue and encourage community members to focus conversation on the other one. |
-| [snoozed](https://github.com/fishtown-analytics/dbt/labels/snoozed) | This issue describes a good idea, but one which will probably not be addressed in a six-month time horizon. The dbt maintainers will revist these issues periodically and re-prioritize them accordingly. |
-| [stale](https://github.com/fishtown-analytics/dbt/labels/stale) | This is an old issue which has not recently been updated. Stale issues will periodically be closed by dbt maintainers, but they can be re-opened if the discussion is restarted. |
-| [wontfix](https://github.com/fishtown-analytics/dbt/labels/wontfix) | This issue does not require a code change in the dbt repository, or the maintainers are unwilling/unable to merge a Pull Request which implements the behavior described in the issue. |
+| [triage](https://github.com/dbt-labs/dbt-core/labels/triage) | This is a new issue which has not yet been reviewed by a `dbt-core` maintainer. This label is removed when a maintainer reviews and responds to the issue. |
+| [bug](https://github.com/dbt-labs/dbt-core/labels/bug) | This issue represents a defect or regression in `dbt-core` |
+| [enhancement](https://github.com/dbt-labs/dbt-core/labels/enhancement) | This issue represents net-new functionality in `dbt-core` |
+| [good first issue](https://github.com/dbt-labs/dbt-core/labels/good%20first%20issue) | This issue does not require deep knowledge of the `dbt-core` codebase to implement. This issue is appropriate for a first-time contributor. |
+| [help wanted](https://github.com/dbt-labs/dbt-core/labels/help%20wanted) / [discussion](https://github.com/dbt-labs/dbt-core/labels/discussion) | Conversation around this issue in ongoing, and there isn't yet a clear path forward. Input from community members is most welcome. |
+| [duplicate](https://github.com/dbt-labs/dbt-core/issues/duplicate) | This issue is functionally identical to another open issue. The `dbt-core` maintainers will close this issue and encourage community members to focus conversation on the other one. |
+| [snoozed](https://github.com/dbt-labs/dbt-core/labels/snoozed) | This issue describes a good idea, but one which will probably not be addressed in a six-month time horizon. The `dbt-core` maintainers will revist these issues periodically and re-prioritize them accordingly. |
+| [stale](https://github.com/dbt-labs/dbt-core/labels/stale) | This is an old issue which has not recently been updated. Stale issues will periodically be closed by `dbt-core` maintainers, but they can be re-opened if the discussion is restarted. |
+| [wontfix](https://github.com/dbt-labs/dbt-core/labels/wontfix) | This issue does not require a code change in the `dbt-core` repository, or the maintainers are unwilling/unable to merge a Pull Request which implements the behavior described in the issue. |
 
 #### Branching Strategy
 
-dbt has three types of branches:
+`dbt-core` has three types of branches:
 
-- **Trunks** are where active development of the next release takes place. There is one trunk named `develop` at the time of writing this, and will be the default branch of the repository.
-- **Release Branches** track a specific, not yet complete release of dbt. Each minor version release has a corresponding release branch. For example, the `0.11.x` series of releases has a branch called `0.11.latest`. This allows us to release new patch versions under `0.11` without necessarily needing to pull them into the latest version of dbt.
-- **Feature Branches** track individual features and fixes. On completion they should be merged into the trunk brnach or a specific release branch.
+- **Trunks** are where active development of the next release takes place. There is one trunk named `main` at the time of writing this, and will be the default branch of the repository.
+- **Release Branches** track a specific, not yet complete release of `dbt-core`. Each minor version release has a corresponding release branch. For example, the `0.11.x` series of releases has a branch called `0.11.latest`. This allows us to release new patch versions under `0.11` without necessarily needing to pull them into the latest version of `dbt-core`.
+- **Feature Branches** track individual features and fixes. On completion they should be merged into the trunk branch or a specific release branch.
 
 ## Getting the code
 
 ### Installing git
 
-You will need `git` in order to download and modify the dbt source code. On macOS, the best way to download git is to just install [Xcode](https://developer.apple.com/support/xcode/).
+You will need `git` in order to download and modify the `dbt-core` source code. On macOS, the best way to download git is to just install [Xcode](https://developer.apple.com/support/xcode/).
 
 ### External contributors
 
-If you are not a member of the `fishtown-analytics` GitHub organization, you can contribute to dbt by forking the dbt repository. For a detailed overview on forking, check out the [GitHub docs on forking](https://help.github.com/en/articles/fork-a-repo). In short, you will need to:
+If you are not a member of the `dbt-labs` GitHub organization, you can contribute to `dbt-core` by forking the `dbt-core` repository. For a detailed overview on forking, check out the [GitHub docs on forking](https://help.github.com/en/articles/fork-a-repo). In short, you will need to:
 
-1. fork the dbt repository
+1. fork the `dbt-core` repository
 2. clone your fork locally
 3. check out a new branch for your proposed changes
 4. push changes to your fork
-5. open a pull request against `fishtown-analytics/dbt` from your forked repository
+5. open a pull request against `dbt-labs/dbt` from your forked repository
 
-### Core contributors
+### dbt Labs contributors
 
-If you are a member of the `fishtown-analytics` GitHub organization, you will have push access to the dbt repo. Rather than
-forking dbt to make your changes, just clone the repository, check out a new branch, and push directly to that branch.
+If you are a member of the `dbt-labs` GitHub organization, you will have push access to the `dbt-core` repo. Rather than forking `dbt-core` to make your changes, just clone the repository, check out a new branch, and push directly to that branch.
 
 ## Setting up an environment
 
-There are some tools that will be helpful to you in developing locally. While this is the list relevant for dbt development, many of these tools are used commonly across open-source python projects.
+There are some tools that will be helpful to you in developing locally. While this is the list relevant for `dbt-core` development, many of these tools are used commonly across open-source python projects.
 
 ### Tools
 
-A short list of tools used in dbt testing that will be helpful to your understanding:
+A short list of tools used in `dbt-core` testing that will be helpful to your understanding:
 
-- [virtualenv](https://virtualenv.pypa.io/en/stable/) to manage dependencies
-- [tox](https://tox.readthedocs.io/en/latest/) to manage virtualenvs across python versions
-- [pytest](https://docs.pytest.org/en/latest/) to discover/run tests
-- [make](https://users.cs.duke.edu/~ola/courses/programming/Makefiles/Makefiles.html) - but don't worry too much, nobody _really_ understands how make works and our Makefile is super simple
-- [flake8](https://gitlab.com/pycqa/flake8) for code linting
-- [CircleCI](https://circleci.com/product/) and [Azure Pipelines](https://azure.microsoft.com/en-us/services/devops/pipelines/)
+- [`tox`](https://tox.readthedocs.io/en/latest/) to manage virtualenvs across python versions. We currently target the latest patch releases for Python 3.7, Python 3.8, and Python 3.9
+- [`pytest`](https://docs.pytest.org/en/latest/) to discover/run tests
+- [`make`](https://users.cs.duke.edu/~ola/courses/programming/Makefiles/Makefiles.html) - but don't worry too much, nobody _really_ understands how make works and our Makefile is super simple
+- [`flake8`](https://flake8.pycqa.org/en/latest/) for code linting
+- [`mypy`](https://mypy.readthedocs.io/en/stable/) for static type checking
+- [Github Actions](https://github.com/features/actions)
 
-A deep understanding of these tools in not required to effectively contribute to dbt, but we recommend checking out the attached documentation if you're interested in learning more about them.
+A deep understanding of these tools in not required to effectively contribute to `dbt-core`, but we recommend checking out the attached documentation if you're interested in learning more about them.
 
 #### virtual environments
 
-We strongly recommend using virtual environments when developing code in dbt. We recommend creating this virtualenv
-in the root of the dbt repository. To create a new virtualenv, run:
-```
+We strongly recommend using virtual environments when developing code in `dbt-core`. We recommend creating this virtualenv
+in the root of the `dbt-core` repository. To create a new virtualenv, run:
+```sh
 python3 -m venv env
 source env/bin/activate
 ```
@@ -128,100 +131,99 @@ Docker and docker-compose are both used in testing. Specific instructions for yo
 
 For testing, and later in the examples in this document, you may want to have `psql` available so you can poke around in the database and see what happened. We recommend that you use [homebrew](https://brew.sh/) for that on macOS, and your package manager on Linux. You can install any version of the postgres client that you'd like. On macOS, with homebrew setup, you can run:
 
-```
+```sh
 brew install postgresql
 ```
 
-## Running dbt in development
+## Running `dbt-core` in development
 
 ### Installation
 
-First make sure that you set up your `virtualenv` as described in section _Setting up an environment_. Next, install dbt (and its dependencies) with:
+First make sure that you set up your `virtualenv` as described in [Setting up an environment](#setting-up-an-environment).  Also ensure you have the latest version of pip installed with `pip install --upgrade pip`. Next, install `dbt-core` (and its dependencies) with:
 
-```
-pip install -r requirements-editable.txt
+```sh
+make dev
+# or
+pip install -r dev-requirements.txt -r editable-requirements.txt
 ```
 
-When dbt is installed from source in this way, any changes you make to the dbt source code will be reflected immediately in your next `dbt` run.
+When `dbt-core` is installed this way, any changes you make to the `dbt-core` source code will be reflected immediately in your next `dbt-core` run.
 
-### Running dbt
 
-With your virtualenv activated, the `dbt` script should point back to the source code you've cloned on your machine. You can verify this by running `which dbt`. This command should show you a path to an executable in your virtualenv.
+### Running `dbt-core`
+
+With your virtualenv activated, the `dbt-core` script should point back to the source code you've cloned on your machine. You can verify this by running `which dbt`. This command should show you a path to an executable in your virtualenv.
 
 Configure your [profile](https://docs.getdbt.com/docs/configure-your-profile) as necessary to connect to your target databases. It may be a good idea to add a new profile pointing to a local postgres instance, or a specific test sandbox within your data warehouse if appropriate.
 
 ## Testing
 
-Getting the dbt integration tests set up in your local environment will be very helpful as you start to make changes to your local version of dbt. The section that follows outlines some helpful tips for setting up the test environment.
+Getting the `dbt-core` integration tests set up in your local environment will be very helpful as you start to make changes to your local version of `dbt-core`. The section that follows outlines some helpful tips for setting up the test environment.
 
-### Running tests via Docker
+Although `dbt-core` works with a number of different databases, you won't need to supply credentials for every one of these databases in your test environment. Instead you can test all dbt-core code changes with Python and Postgres.
 
-dbt's unit and integration tests run in Docker. Because dbt works with a number of different databases, you will need to supply credentials for one or more of these databases in your test environment. Most organizations don't have access to each of a BigQuery, Redshift, Snowflake, and Postgres database, so it's likely that you will be unable to run every integration test locally. Fortunately, Fishtown Analytics provides a CI environment with access to sandboxed Redshift, Snowflake, BigQuery, and Postgres databases. See the section on [_Submitting a Pull Request_](#submitting-a-pull-request) below for more information on this CI setup.
+### Initial setup
 
+We recommend starting with `dbt-core`'s Postgres tests. These tests cover most of the functionality in `dbt-core`, are the fastest to run, and are the easiest to set up. To run the Postgres integration tests, you'll have to do one extra step of setting up the test database:
 
-### Specifying your test credentials
-
-dbt uses test credentials specified in a `test.env` file in the root of the repository. This `test.env` file is git-ignored, but please be _extra_ careful to never check in credentials or other sensitive information when developing against dbt. To create your `test.env` file, copy the provided sample file, then supply your relevant credentials:
-
-```
-cp test.env.sample test.env
-```
-
-We recommend starting with dbt's Postgres tests. These tests cover most of the functionality in dbt, are the fastest to run, and are the easiest to set up. dbt's test suite runs Postgres in a Docker container, so no setup should be required to run these tests.
-
-If you additionally want to test Snowflake, Bigquery, or Redshift, locally you'll need to get credentials and add them to the `test.env` file. In general, it's most important to have successful unit and Postgres tests. Once you open a PR, dbt will automatically run integration tests for the other three core database adapters. Of course, if you are a BigQuery user, contributing a BigQuery-only feature, it's important to run BigQuery tests as well.
-
-### Test commands
-
-dbt's unit tests and Python linter can be run with:
-
-```
-make test-unit
-```
-
-To run the Postgres + Python 3.6 integration tests, you'll have to do one extra step of setting up the test database:
-
+```sh
+make setup-db
 ```
+or, alternatively:
+```sh
 docker-compose up -d database
 PGHOST=localhost PGUSER=root PGPASSWORD=password PGDATABASE=postgres bash test/setup_db.sh
 ```
 
-To run a quick test for Python3 integration tests on Postgres, you can run:
+### Test commands
 
-```
-make test-quick
-```
+There are a few methods for running tests locally.
 
-To run tests for a specific database, invoke `tox` directly with the required flags:
-```
-# Run Postgres py36 tests
-docker-compose run test tox -e integration-postgres-py36 -- -x
+#### Makefile
 
-# Run Snowflake py36 tests
-docker-compose run test tox -e integration-snowflake-py36 -- -x
+There are multiple targets in the Makefile to run common test suites and code
+checks, most notably:
 
-# Run BigQuery py36 tests
-docker-compose run test tox -e integration-bigquery-py36 -- -x
+```sh
+# Runs unit tests with py38 and code checks in parallel.
+make test
+# Runs postgres integration tests with py38 in "fail fast" mode.
+make integration
+```
+> These make targets assume you have a recent version of [`tox`](https://tox.readthedocs.io/en/latest/) installed locally,
+> unless you use choose a Docker container to run tests. Run `make help` for more info.
 
-# Run Redshift py36 tests
-docker-compose run test tox -e integration-redshift-py36 -- -x
-```
+Check out the other targets in the Makefile to see other commonly used test
+suites.
 
-To run a specific test by itself:
-```
-docker-compose run test tox -e explicit-py36 -- -s -x -m profile_{adapter} {path_to_test_file_or_folder}
-```
-E.g.
-```
-docker-compose run test tox -e explicit-py36 -- -s -x -m profile_snowflake test/integration/001_simple_copy_test
-```
+#### `tox`
 
-See the `Makefile` contents for more some other examples of ways to run `tox`.
+[`tox`](https://tox.readthedocs.io/en/latest/) takes care of managing virtualenvs and install dependencies in order to run
+tests. You can also run tests in parallel, for example, you can run unit tests
+for Python 3.7, Python 3.8, Python 3.9, `flake8` checks, and `mypy` checks in
+parallel with `tox -p`. Also, you can run unit tests for specific python versions
+with `tox -e py37`. The configuration for these tests in located in `tox.ini`.
 
+#### `pytest`
+
+Finally, you can also run a specific test or group of tests using [`pytest`](https://docs.pytest.org/en/latest/) directly. With a virtualenv
+active and dev dependencies installed you can do things like:
+```sh
+# run specific postgres integration tests
+python -m pytest -m profile_postgres test/integration/001_simple_copy_test
+# run all unit tests in a file
+python -m pytest test/unit/test_graph.py
+# run a specific unit test
+python -m pytest test/unit/test_graph.py::GraphTest::test__dependency_list
+```
+> [Here](https://docs.pytest.org/en/reorganize-docs/new-docs/user/commandlineuseful.html)
+> is a list of useful command-line options for `pytest` to use while developing.
 ## Submitting a Pull Request
 
-Fishtown Analytics provides a sandboxed Redshift, Snowflake, and BigQuery database for use in a CI environment. When pull requests are submitted to the `fishtown-analytics/dbt` repo, GitHub will trigger automated tests in CircleCI and Azure Pipelines.
+dbt Labs provides a CI environment to test changes to specific adapters, and periodic maintenance checks of `dbt-core` through Github Actions. For example, if you submit a pull request to the `dbt-redshift` repo, GitHub will trigger automated code checks and tests against Redshift.
 
-A dbt maintainer will review your PR. They may suggest code revision for style or clarity, or request that you add unit or integration test(s). These are good things! We believe that, with a little bit of help, anyone can contribute high-quality code.
+A `dbt-core` maintainer will review your PR. They may suggest code revision for style or clarity, or request that you add unit or integration test(s). These are good things! We believe that, with a little bit of help, anyone can contribute high-quality code.
+- First time contributors should note code checks + unit tests require a maintainer to approve.
 
-Once all tests are passing and your PR has been approved, a dbt maintainer will merge your changes into the active development branch. And that's it! Happy developing :tada:
+
+Once all tests are passing and your PR has been approved, a `dbt-core` maintainer will merge your changes into the active development branch. And that's it! Happy developing :tada:

Dockerfile.test

@@ -1,8 +1,16 @@
-FROM ubuntu:18.04
+##
+#  This dockerfile is used for local development and adapter testing only.
+#  See `/docker` for a generic and production-ready docker file
+##
+
+FROM ubuntu:20.04
 
 ENV DEBIAN_FRONTEND noninteractive
 
 RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
+    software-properties-common \
+    && add-apt-repository ppa:git-core/ppa -y \
     && apt-get dist-upgrade -y \
     && apt-get install -y --no-install-recommends \
     netcat \
@@ -24,7 +32,7 @@ RUN apt-get update \
     && apt-get install -y \
     python \
     python-dev \
-    python-pip \
+    python3-pip \
     python3.6 \
     python3.6-dev \
     python3-pip \
@@ -46,9 +54,7 @@ RUN curl -LO https://github.com/jwilder/dockerize/releases/download/$DOCKERIZE_V
     && tar -C /usr/local/bin -xzvf dockerize-linux-amd64-$DOCKERIZE_VERSION.tar.gz \
     && rm dockerize-linux-amd64-$DOCKERIZE_VERSION.tar.gz
 
-RUN pip3 install -U "tox==3.14.4" wheel "six>=1.14.0,<1.15.0" "virtualenv==20.0.3" setuptools
-# tox fails if the 'python' interpreter (python2) doesn't have `tox` installed
-RUN pip install -U "tox==3.14.4" "six>=1.14.0,<1.15.0" "virtualenv==20.0.3" setuptools
+RUN pip3 install -U tox wheel six setuptools
 
 # These args are passed in via docker-compose, which reads then from the .env file.
 # On Linux, run `make .env` to create the .env file for the current user.

License.md

@@ -186,7 +186,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright {yyyy} {name of copyright owner}
+   Copyright 2021 dbt Labs, Inc.
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.

Makefile

@@ -1,24 +1,57 @@
-.PHONY: install test test-unit test-integration
+.DEFAULT_GOAL:=help
 
-test: .env
-	@echo "Full test run starting..."
-	@time docker-compose run --rm test tox
+# Optional flag to run target in a docker container.
+# (example `make test USE_DOCKER=true`)
+ifeq ($(USE_DOCKER),true)
+	DOCKER_CMD := docker-compose run --rm test
+endif
 
-test-unit: .env
-	@echo "Unit test run starting..."
-	@time docker-compose run --rm test tox -e unit-py36,flake8
+.PHONY: dev
+dev: ## Installs dbt-* packages in develop mode along with development dependencies.
+	pip install -r dev-requirements.txt -r editable-requirements.txt
 
-test-integration: .env
-	@echo "Integration test run starting..."
-	@time docker-compose run --rm test tox -e integration-postgres-py36,integration-redshift-py36,integration-snowflake-py36,integration-bigquery-py36
+.PHONY: mypy
+mypy: .env ## Runs mypy for static type checking.
+	$(DOCKER_CMD) tox -e mypy
 
-test-quick: .env
-	@echo "Integration test run starting, will exit on first failure..."
-	@time docker-compose run --rm test tox -e integration-postgres-py36 -- -x
+.PHONY: flake8
+flake8: .env ## Runs flake8 to enforce style guide.
+	$(DOCKER_CMD) tox -e flake8
+
+.PHONY: lint
+lint: .env ## Runs all code checks in parallel.
+	$(DOCKER_CMD) tox -p -e flake8,mypy
+
+.PHONY: unit
+unit: .env ## Runs unit tests with py38.
+	$(DOCKER_CMD) tox -e py38
+
+.PHONY: test
+test: .env ## Runs unit tests with py38 and code checks in parallel.
+	$(DOCKER_CMD) tox -p -e py38,flake8,mypy
+
+.PHONY: integration
+integration: .env integration-postgres ## Alias for integration-postgres.
+
+.PHONY: integration-fail-fast
+integration-fail-fast: .env integration-postgres-fail-fast ## Alias for integration-postgres-fail-fast.
+
+.PHONY: integration-postgres
+integration-postgres: .env ## Runs postgres integration tests with py38.
+	$(DOCKER_CMD) tox -e py38-postgres -- -nauto
+
+.PHONY: integration-postgres-fail-fast
+integration-postgres-fail-fast: .env ## Runs postgres integration tests with py38 in "fail fast" mode.
+	$(DOCKER_CMD) tox -e py38-postgres -- -x -nauto
+
+.PHONY: setup-db
+setup-db: ## Setup Postgres database with docker-compose for system testing.
+	docker-compose up -d database
+	PGHOST=localhost PGUSER=root PGPASSWORD=password PGDATABASE=postgres bash test/setup_db.sh
 
 # This rule creates a file named .env that is used by docker-compose for passing
 # the USER_ID and GROUP_ID arguments to the Docker image.
-.env:
+.env: ## Setup step for using using docker-compose with make target.
 	@touch .env
 ifneq ($(OS),Windows_NT)
 ifneq ($(shell uname -s), Darwin)
@@ -26,9 +59,9 @@ ifneq ($(shell uname -s), Darwin)
 	@echo GROUP_ID=$(shell id -g) >> .env
 endif
 endif
-	@time docker-compose build
 
-clean:
+.PHONY: clean
+clean: ## Resets development environment.
 	rm -f .coverage
 	rm -rf .eggs/
 	rm -f .env
@@ -42,3 +75,14 @@ clean:
 	rm -rf target/
 	find . -type f -name '*.pyc' -delete
 	find . -type d -name '__pycache__' -depth -delete
+
+.PHONY: help
+help: ## Show this help message.
+	@echo 'usage: make [target] [USE_DOCKER=true]'
+	@echo
+	@echo 'targets:'
+	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'
+	@echo
+	@echo 'options:'
+	@echo 'use USE_DOCKER=true to run target in a docker container'
+

README.md

@@ -1,28 +1,18 @@
 <p align="center">
-  <img src="https://raw.githubusercontent.com/fishtown-analytics/dbt/6c6649f9129d5d108aa3b0526f634cd8f3a9d1ed/etc/dbt-logo-full.svg" alt="dbt logo" width="500"/>
+  <img src="https://raw.githubusercontent.com/dbt-labs/dbt-core/fa1ea14ddfb1d5ae319d5141844910dd53ab2834/etc/dbt-core.svg" alt="dbt logo" width="750"/>
 </p>
 <p align="center">
-  <a href="https://codeclimate.com/github/fishtown-analytics/dbt">
-    <img src="https://codeclimate.com/github/fishtown-analytics/dbt/badges/gpa.svg" alt="Code Climate"/>
+  <a href="https://github.com/dbt-labs/dbt-core/actions/workflows/main.yml">
+    <img src="https://github.com/dbt-labs/dbt-core/actions/workflows/main.yml/badge.svg?event=push" alt="Unit Tests Badge"/>
   </a>
-  <a href="https://circleci.com/gh/fishtown-analytics/dbt/tree/master">
-    <img src="https://circleci.com/gh/fishtown-analytics/dbt/tree/master.svg?style=svg"  alt="CircleCI" />
-  </a>
-  <a href="https://ci.appveyor.com/project/DrewBanin/dbt/branch/development">
-    <img src="https://ci.appveyor.com/api/projects/status/v01rwd3q91jnwp9m/branch/development?svg=true" alt="AppVeyor" />
-  </a>
-  <a href="https://community.getdbt.com">
-    <img src="https://community.getdbt.com/badge.svg" alt="Slack" />
+  <a href="https://github.com/dbt-labs/dbt-core/actions/workflows/integration.yml">
+    <img src="https://github.com/dbt-labs/dbt-core/actions/workflows/integration.yml/badge.svg?event=push" alt="Integration Tests Badge"/>
   </a>
 </p>
 
-**[dbt](https://www.getdbt.com/)** (data build tool) enables data analysts and engineers to transform their data using the same practices that software engineers use to build applications.
+**[dbt](https://www.getdbt.com/)** enables data analysts and engineers to transform their data using the same practices that software engineers use to build applications.
 
-dbt is the T in ELT. Organize, cleanse, denormalize, filter, rename, and pre-aggregate the raw data in your warehouse so that it's ready for analysis.
-
-![dbt architecture](https://raw.githubusercontent.com/fishtown-analytics/dbt/6c6649f9129d5d108aa3b0526f634cd8f3a9d1ed/etc/dbt-arch.png)
-
-dbt can be used to [aggregate pageviews into sessions](https://github.com/fishtown-analytics/snowplow), calculate [ad spend ROI](https://github.com/fishtown-analytics/facebook-ads), or report on [email campaign performance](https://github.com/fishtown-analytics/mailchimp).
+![architecture](https://raw.githubusercontent.com/dbt-labs/dbt-core/6c6649f9129d5d108aa3b0526f634cd8f3a9d1ed/etc/dbt-arch.png)
 
 ## Understanding dbt
 
@@ -30,28 +20,22 @@ Analysts using dbt can transform their data by simply writing select statements,
 
 These select statements, or "models", form a dbt project. Models frequently build on top of one another – dbt makes it easy to [manage relationships](https://docs.getdbt.com/docs/ref) between models, and [visualize these relationships](https://docs.getdbt.com/docs/documentation), as well as assure the quality of your transformations through [testing](https://docs.getdbt.com/docs/testing).
 
-![dbt dag](https://raw.githubusercontent.com/fishtown-analytics/dbt/6c6649f9129d5d108aa3b0526f634cd8f3a9d1ed/etc/dbt-dag.png)
+![dbt dag](https://raw.githubusercontent.com/dbt-labs/dbt-core/6c6649f9129d5d108aa3b0526f634cd8f3a9d1ed/etc/dbt-dag.png)
 
 ## Getting started
 
--   [Install dbt](https://docs.getdbt.com/docs/installation)
--   Read the [documentation](https://docs.getdbt.com/).
--   Productionize your dbt project with [dbt Cloud](https://www.getdbt.com)
+- [Install dbt](https://docs.getdbt.com/docs/installation)
+- Read the [introduction](https://docs.getdbt.com/docs/introduction/) and [viewpoint](https://docs.getdbt.com/docs/about/viewpoint/)
 
-## Find out more
+## Join the dbt Community
 
--   Check out the [Introduction to dbt](https://docs.getdbt.com/docs/introduction/).
--   Read the [dbt Viewpoint](https://docs.getdbt.com/docs/about/viewpoint/).
-
-## Join thousands of analysts in the dbt community
-
--   Join the [chat](http://community.getdbt.com/) on Slack.
--   Find community posts on [dbt Discourse](https://discourse.getdbt.com).
+- Be part of the conversation in the [dbt Community Slack](http://community.getdbt.com/)
+- Read more on the [dbt Community Discourse](https://discourse.getdbt.com)
 
 ## Reporting bugs and contributing code
 
--   Want to report a bug or request a feature? Let us know on [Slack](http://community.getdbt.com/), or open [an issue](https://github.com/fishtown-analytics/dbt/issues/new).
--   Want to help us build dbt? Check out the [Contributing Getting Started Guide](https://github.com/fishtown-analytics/dbt/blob/HEAD/CONTRIBUTING.md)
+- Want to report a bug or request a feature? Let us know on [Slack](http://community.getdbt.com/), or open [an issue](https://github.com/dbt-labs/dbt-core/issues/new)
+- Want to help us build dbt? Check out the [Contributing Guide](https://github.com/dbt-labs/dbt-core/blob/HEAD/CONTRIBUTING.md)
 
 ## Code of Conduct
 

azure-pipelines.yml

@@ -1,154 +0,0 @@
-# Python package
-# Create and test a Python package on multiple Python versions.
-# Add steps that analyze code, save the dist with the build record, publish to a PyPI-compatible index, and more:
-# https://docs.microsoft.com/azure/devops/pipelines/languages/python
-
-trigger:
-  branches:
-    include:
-    - master
-    - dev/*
-    - pr/*
-
-jobs:
-- job: UnitTest
-  pool:
-    vmImage: 'vs2017-win2016'
-  steps:
-  - task: UsePythonVersion@0
-    inputs:
-      versionSpec: '3.7'
-      architecture: 'x64'
-
-  - script: python -m pip install --upgrade pip && pip install tox
-    displayName: 'Install dependencies'
-
-  - script: python -m tox -e pywin-unit
-    displayName: Run unit tests
-
-- job: PostgresIntegrationTest
-  pool:
-    vmImage: 'vs2017-win2016'
-  dependsOn: UnitTest
-
-  steps:
-  - pwsh: |
-      $serviceName = Get-Service -Name postgresql*
-      Set-Service -InputObject $serviceName -StartupType Automatic
-      Start-Service -InputObject $serviceName
-
-      & $env:PGBIN\createdb.exe -U postgres dbt
-      & $env:PGBIN\psql.exe  -U postgres -c "CREATE ROLE root WITH PASSWORD 'password';"
-      & $env:PGBIN\psql.exe  -U postgres -c "ALTER ROLE root WITH LOGIN;"
-      & $env:PGBIN\psql.exe  -U postgres -c "GRANT CREATE, CONNECT ON DATABASE dbt TO root WITH GRANT OPTION;"
-      & $env:PGBIN\psql.exe  -U postgres -c "CREATE ROLE noaccess WITH PASSWORD 'password' NOSUPERUSER;"
-      & $env:PGBIN\psql.exe  -U postgres -c "ALTER ROLE noaccess WITH LOGIN;"
-      & $env:PGBIN\psql.exe  -U postgres -c "GRANT CONNECT ON DATABASE dbt TO noaccess;"
-    displayName: Install postgresql and set up database
-
-  - task: UsePythonVersion@0
-    inputs:
-      versionSpec: '3.7'
-      architecture: 'x64'
-
-  - script: python -m pip install --upgrade pip && pip install tox
-    displayName: 'Install dependencies'
-
-  - script: python -m tox -e pywin-postgres
-    displayName: Run integration tests
-
-# These three are all similar except secure environment variables, which MUST be passed along to their tasks,
-# but there's probably a better way to do this!
-- job: SnowflakeIntegrationTest
-  pool:
-    vmImage: 'vs2017-win2016'
-  dependsOn: PostgresIntegrationTest
-  condition: succeeded()
-  steps:
-  - task: UsePythonVersion@0
-    inputs:
-      versionSpec: '3.7'
-      architecture: 'x64'
-
-  - script: python -m pip install --upgrade pip && pip install tox
-    displayName: 'Install dependencies'
-
-  - script: python -m tox -e pywin-snowflake
-    env:
-      SNOWFLAKE_TEST_ACCOUNT: $(SNOWFLAKE_TEST_ACCOUNT)
-      SNOWFLAKE_TEST_PASSWORD: $(SNOWFLAKE_TEST_PASSWORD)
-      SNOWFLAKE_TEST_USER: $(SNOWFLAKE_TEST_USER)
-      SNOWFLAKE_TEST_WAREHOUSE: $(SNOWFLAKE_TEST_WAREHOUSE)
-      SNOWFLAKE_TEST_OAUTH_REFRESH_TOKEN: $(SNOWFLAKE_TEST_OAUTH_REFRESH_TOKEN)
-      SNOWFLAKE_TEST_OAUTH_CLIENT_ID: $(SNOWFLAKE_TEST_OAUTH_CLIENT_ID)
-      SNOWFLAKE_TEST_OAUTH_CLIENT_SECRET: $(SNOWFLAKE_TEST_OAUTH_CLIENT_SECRET)
-    displayName: Run integration tests
-
-- job: BigQueryIntegrationTest
-  pool:
-    vmImage: 'vs2017-win2016'
-  dependsOn: PostgresIntegrationTest
-  condition: succeeded()
-  steps:
-  - task: UsePythonVersion@0
-    inputs:
-      versionSpec: '3.7'
-      architecture: 'x64'
-  - script: python -m pip install --upgrade pip && pip install tox
-    displayName: 'Install dependencies'
-  - script: python -m tox -e pywin-bigquery
-    env:
-      BIGQUERY_SERVICE_ACCOUNT_JSON: $(BIGQUERY_SERVICE_ACCOUNT_JSON)
-    displayName: Run integration tests
-
-- job: RedshiftIntegrationTest
-  pool:
-    vmImage: 'vs2017-win2016'
-  dependsOn: PostgresIntegrationTest
-  condition: succeeded()
-  steps:
-  - task: UsePythonVersion@0
-    inputs:
-      versionSpec: '3.7'
-      architecture: 'x64'
-
-  - script: python -m pip install --upgrade pip && pip install tox
-    displayName: 'Install dependencies'
-
-  - script: python -m tox -e pywin-redshift
-    env:
-      REDSHIFT_TEST_DBNAME: $(REDSHIFT_TEST_DBNAME)
-      REDSHIFT_TEST_PASS: $(REDSHIFT_TEST_PASS)
-      REDSHIFT_TEST_USER: $(REDSHIFT_TEST_USER)
-      REDSHIFT_TEST_PORT: $(REDSHIFT_TEST_PORT)
-      REDSHIFT_TEST_HOST: $(REDSHIFT_TEST_HOST)
-    displayName: Run integration tests
-
-- job: BuildWheel
-  pool:
-    vmImage: 'vs2017-win2016'
-  dependsOn:
-    - UnitTest
-    - PostgresIntegrationTest
-    - RedshiftIntegrationTest
-    - SnowflakeIntegrationTest
-    - BigQueryIntegrationTest
-  condition: succeeded()
-  steps:
-    - task: UsePythonVersion@0
-      inputs:
-        versionSpec: '3.7'
-        architecture: 'x64'
-    - script: python -m pip install --upgrade pip setuptools && python -m pip install -r requirements.txt && python -m pip install -r requirements-dev.txt
-      displayName: Install dependencies
-    - task: ShellScript@2
-      inputs:
-        scriptPath: scripts/build-wheels.sh
-    - task: CopyFiles@2
-      inputs:
-        contents: 'dist\?(*.whl|*.tar.gz)'
-        TargetFolder: '$(Build.ArtifactStagingDirectory)'
-    - task: PublishBuildArtifacts@1
-      inputs:
-        pathtoPublish: '$(Build.ArtifactStagingDirectory)'
-        artifactName: dists

converter.py

@@ -1,75 +0,0 @@
-#!/usr/bin/env python
-import json
-import yaml
-import sys
-import argparse
-from datetime import datetime, timezone
-import dbt.clients.registry as registry
-
-
-def yaml_type(fname):
-    with open(fname) as f:
-        return yaml.load(f)
-
-
-def parse_args():
-    parser = argparse.ArgumentParser()
-    parser.add_argument("--project", type=yaml_type, default="dbt_project.yml")
-    parser.add_argument("--namespace", required=True)
-    return parser.parse_args()
-
-
-def get_full_name(args):
-    return "{}/{}".format(args.namespace, args.project["name"])
-
-
-def init_project_in_packages(args, packages):
-    full_name = get_full_name(args)
-    if full_name not in packages:
-        packages[full_name] = {
-            "name": args.project["name"],
-            "namespace": args.namespace,
-            "latest": args.project["version"],
-            "assets": {},
-            "versions": {},
-        }
-    return packages[full_name]
-
-
-def add_version_to_package(args, project_json):
-    project_json["versions"][args.project["version"]] = {
-        "id": "{}/{}".format(get_full_name(args), args.project["version"]),
-        "name": args.project["name"],
-        "version": args.project["version"],
-        "description": "",
-        "published_at": datetime.now(timezone.utc).astimezone().isoformat(),
-        "packages": args.project.get("packages") or [],
-        "works_with": [],
-        "_source": {
-            "type": "github",
-            "url": "",
-            "readme": "",
-        },
-        "downloads": {
-            "tarball": "",
-            "format": "tgz",
-            "sha1": "",
-        },
-    }
-
-
-def main():
-    args = parse_args()
-    packages = registry.packages()
-    project_json = init_project_in_packages(args, packages)
-    if args.project["version"] in project_json["versions"]:
-        raise Exception(
-            "Version {} already in packages JSON".format(args.project["version"]),
-            file=sys.stderr,
-        )
-    add_version_to_package(args, project_json)
-    print(json.dumps(packages, indent=2))
-
-
-if __name__ == "__main__":
-    main()

core/MANIFEST.in

@@ -1 +1 @@
-recursive-include dbt/include *.py *.sql *.yml *.html *.md
+recursive-include dbt/include *.py *.sql *.yml *.html *.md .gitkeep .gitignore

core/README.md

@@ -0,0 +1,42 @@
+<p align="center">
+  <img src="https://raw.githubusercontent.com/dbt-labs/dbt-core/fa1ea14ddfb1d5ae319d5141844910dd53ab2834/etc/dbt-core.svg" alt="dbt logo" width="750"/>
+</p>
+<p align="center">
+  <a href="https://github.com/dbt-labs/dbt-core/actions/workflows/main.yml">
+    <img src="https://github.com/dbt-labs/dbt-core/actions/workflows/main.yml/badge.svg?event=push" alt="Unit Tests Badge"/>
+  </a>
+  <a href="https://github.com/dbt-labs/dbt-core/actions/workflows/integration.yml">
+    <img src="https://github.com/dbt-labs/dbt-core/actions/workflows/integration.yml/badge.svg?event=push" alt="Integration Tests Badge"/>
+  </a>
+</p>
+
+**[dbt](https://www.getdbt.com/)** enables data analysts and engineers to transform their data using the same practices that software engineers use to build applications.
+
+![architecture](https://raw.githubusercontent.com/dbt-labs/dbt-core/6c6649f9129d5d108aa3b0526f634cd8f3a9d1ed/etc/dbt-arch.png)
+
+## Understanding dbt
+
+Analysts using dbt can transform their data by simply writing select statements, while dbt handles turning these statements into tables and views in a data warehouse.
+
+These select statements, or "models", form a dbt project. Models frequently build on top of one another – dbt makes it easy to [manage relationships](https://docs.getdbt.com/docs/ref) between models, and [visualize these relationships](https://docs.getdbt.com/docs/documentation), as well as assure the quality of your transformations through [testing](https://docs.getdbt.com/docs/testing).
+
+![dbt dag](https://raw.githubusercontent.com/dbt-labs/dbt-core/6c6649f9129d5d108aa3b0526f634cd8f3a9d1ed/etc/dbt-dag.png)
+
+## Getting started
+
+- [Install dbt](https://docs.getdbt.com/docs/installation)
+- Read the [introduction](https://docs.getdbt.com/docs/introduction/) and [viewpoint](https://docs.getdbt.com/docs/about/viewpoint/)
+
+## Join the dbt Community
+
+- Be part of the conversation in the [dbt Community Slack](http://community.getdbt.com/)
+- Read more on the [dbt Community Discourse](https://discourse.getdbt.com)
+
+## Reporting bugs and contributing code
+
+- Want to report a bug or request a feature? Let us know on [Slack](http://community.getdbt.com/), or open [an issue](https://github.com/dbt-labs/dbt-core/issues/new)
+- Want to help us build dbt? Check out the [Contributing Guide](https://github.com/dbt-labs/dbt-core/blob/HEAD/CONTRIBUTING.md)
+
+## Code of Conduct
+
+Everyone interacting in the dbt project's codebases, issue trackers, chat rooms, and mailing lists is expected to follow the [dbt Code of Conduct](https://community.getdbt.com/code-of-conduct).

core/dbt/README.md

@@ -0,0 +1,52 @@
+# core/dbt directory README
+
+## The following are individual files in this directory.
+
+### deprecations.py
+
+### flags.py		
+
+### main.py			
+
+### tracking.py		
+
+### version.py
+
+### lib.py
+
+### node_types.py
+
+### helper_types.py		
+
+### links.py		
+
+### semver.py		
+
+### ui.py
+
+### compilation.py		
+
+### dataclass_schema.py	
+
+### exceptions.py		
+
+### hooks.py		
+
+### logger.py		
+
+### profiler.py		
+
+### utils.py
+
+
+## The subdirectories will be documented in a README in the subdirectory
+* config
+* include
+* adapters
+* context
+* deps
+* graph
+* task
+* clients
+* events
+

core/dbt/adapters/README.md

@@ -0,0 +1 @@
+# Adapters README

core/dbt/adapters/base/column.py

@@ -8,10 +8,10 @@ from dbt.exceptions import RuntimeException
 @dataclass
 class Column:
     TYPE_LABELS: ClassVar[Dict[str, str]] = {
-        "STRING": "TEXT",
-        "TIMESTAMP": "TIMESTAMP",
-        "FLOAT": "FLOAT",
-        "INTEGER": "INT",
+        'STRING': 'TEXT',
+        'TIMESTAMP': 'TIMESTAMP',
+        'FLOAT': 'FLOAT',
+        'INTEGER': 'INT'
     }
     column: str
     dtype: str
@@ -24,7 +24,7 @@ class Column:
         return cls.TYPE_LABELS.get(dtype.upper(), dtype)
 
     @classmethod
-    def create(cls, name, label_or_dtype: str) -> "Column":
+    def create(cls, name, label_or_dtype: str) -> 'Column':
         column_type = cls.translate_type(label_or_dtype)
         return cls(name, column_type)
 
@@ -41,19 +41,14 @@ class Column:
         if self.is_string():
             return Column.string_type(self.string_size())
         elif self.is_numeric():
-            return Column.numeric_type(
-                self.dtype, self.numeric_precision, self.numeric_scale
-            )
+            return Column.numeric_type(self.dtype, self.numeric_precision,
+                                       self.numeric_scale)
         else:
             return self.dtype
 
     def is_string(self) -> bool:
-        return self.dtype.lower() in [
-            "text",
-            "character varying",
-            "character",
-            "varchar",
-        ]
+        return self.dtype.lower() in ['text', 'character varying', 'character',
+                                      'varchar']
 
     def is_number(self):
         return any([self.is_integer(), self.is_numeric(), self.is_float()])
@@ -61,45 +56,33 @@ class Column:
     def is_float(self):
         return self.dtype.lower() in [
             # floats
-            "real",
-            "float4",
-            "float",
-            "double precision",
-            "float8",
+            'real', 'float4', 'float', 'double precision', 'float8'
         ]
 
     def is_integer(self) -> bool:
         return self.dtype.lower() in [
             # real types
-            "smallint",
-            "integer",
-            "bigint",
-            "smallserial",
-            "serial",
-            "bigserial",
+            'smallint', 'integer', 'bigint',
+            'smallserial', 'serial', 'bigserial',
             # aliases
-            "int2",
-            "int4",
-            "int8",
-            "serial2",
-            "serial4",
-            "serial8",
+            'int2', 'int4', 'int8',
+            'serial2', 'serial4', 'serial8',
         ]
 
     def is_numeric(self) -> bool:
-        return self.dtype.lower() in ["numeric", "decimal"]
+        return self.dtype.lower() in ['numeric', 'decimal']
 
     def string_size(self) -> int:
         if not self.is_string():
             raise RuntimeException("Called string_size() on non-string field!")
 
-        if self.dtype == "text" or self.char_size is None:
+        if self.dtype == 'text' or self.char_size is None:
             # char_size should never be None. Handle it reasonably just in case
             return 256
         else:
             return int(self.char_size)
 
-    def can_expand_to(self, other_column: "Column") -> bool:
+    def can_expand_to(self, other_column: 'Column') -> bool:
         """returns True if this column can be expanded to the size of the
         other column"""
         if not self.is_string() or not other_column.is_string():
@@ -127,10 +110,12 @@ class Column:
         return "<Column {} ({})>".format(self.name, self.data_type)
 
     @classmethod
-    def from_description(cls, name: str, raw_data_type: str) -> "Column":
-        match = re.match(r"([^(]+)(\([^)]+\))?", raw_data_type)
+    def from_description(cls, name: str, raw_data_type: str) -> 'Column':
+        match = re.match(r'([^(]+)(\([^)]+\))?', raw_data_type)
         if match is None:
-            raise RuntimeException(f'Could not interpret data type "{raw_data_type}"')
+            raise RuntimeException(
+                f'Could not interpret data type "{raw_data_type}"'
+            )
         data_type, size_info = match.groups()
         char_size = None
         numeric_precision = None
@@ -138,7 +123,7 @@ class Column:
         if size_info is not None:
             # strip out the parentheses
             size_info = size_info[1:-1]
-            parts = size_info.split(",")
+            parts = size_info.split(',')
             if len(parts) == 1:
                 try:
                     char_size = int(parts[0])
@@ -163,4 +148,6 @@ class Column:
                         f'could not convert "{parts[1]}" to an integer'
                     )
 
-        return cls(name, data_type, char_size, numeric_precision, numeric_scale)
+        return cls(
+            name, data_type, char_size, numeric_precision, numeric_scale
+        )

core/dbt/adapters/base/connections.py

@@ -1,27 +1,34 @@
 import abc
 import os
-
 # multiprocessing.RLock is a function returning this type
 from multiprocessing.synchronize import RLock
 from threading import get_ident
-from typing import Dict, Tuple, Hashable, Optional, ContextManager, List, Union
+from typing import (
+    Dict, Tuple, Hashable, Optional, ContextManager, List, Union
+)
 
 import agate
 
 import dbt.exceptions
 from dbt.contracts.connection import (
-    Connection,
-    Identifier,
-    ConnectionState,
-    AdapterRequiredConfig,
-    LazyHandle,
-    AdapterResponse,
+    Connection, Identifier, ConnectionState,
+    AdapterRequiredConfig, LazyHandle, AdapterResponse
 )
 from dbt.contracts.graph.manifest import Manifest
 from dbt.adapters.base.query_headers import (
     MacroQueryStringSetter,
 )
-from dbt.logger import GLOBAL_LOGGER as logger
+from dbt.events.functions import fire_event
+from dbt.events.types import (
+    NewConnection,
+    ConnectionReused,
+    ConnectionLeftOpen,
+    ConnectionLeftOpen2,
+    ConnectionClosed,
+    ConnectionClosed2,
+    Rollback,
+    RollbackFailed
+)
 from dbt import flags
 
 
@@ -38,7 +45,6 @@ class BaseConnectionManager(metaclass=abc.ABCMeta):
     You must also set the 'TYPE' class attribute with a class-unique constant
     string.
     """
-
     TYPE: str = NotImplemented
 
     def __init__(self, profile: AdapterRequiredConfig):
@@ -69,7 +75,7 @@ class BaseConnectionManager(metaclass=abc.ABCMeta):
         key = self.get_thread_identifier()
         if key in self.thread_connections:
             raise dbt.exceptions.InternalException(
-                "In set_thread_connection, existing connection exists for {}"
+                'In set_thread_connection, existing connection exists for {}'
             )
         self.thread_connections[key] = conn
 
@@ -109,19 +115,18 @@ class BaseConnectionManager(metaclass=abc.ABCMeta):
             underlying database.
         """
         raise dbt.exceptions.NotImplementedException(
-            "`exception_handler` is not implemented for this adapter!"
-        )
+            '`exception_handler` is not implemented for this adapter!')
 
     def set_connection_name(self, name: Optional[str] = None) -> Connection:
         conn_name: str
         if name is None:
             # if a name isn't specified, we'll re-use a single handle
             # named 'master'
-            conn_name = "master"
+            conn_name = 'master'
         else:
             if not isinstance(name, str):
                 raise dbt.exceptions.CompilerException(
-                    f"For connection name, got {name} - not a string!"
+                    f'For connection name, got {name} - not a string!'
                 )
             assert isinstance(name, str)
             conn_name = name
@@ -134,21 +139,17 @@ class BaseConnectionManager(metaclass=abc.ABCMeta):
                 state=ConnectionState.INIT,
                 transaction_open=False,
                 handle=None,
-                credentials=self.profile.credentials,
+                credentials=self.profile.credentials
             )
             self.set_thread_connection(conn)
 
-        if conn.name == conn_name and conn.state == "open":
+        if conn.name == conn_name and conn.state == 'open':
             return conn
 
-        logger.debug('Acquiring new {} connection "{}".'.format(self.TYPE, conn_name))
+        fire_event(NewConnection(conn_name=conn_name, conn_type=self.TYPE))
 
-        if conn.state == "open":
-            logger.debug(
-                "Re-using an available connection from the pool (formerly {}).".format(
-                    conn.name
-                )
-            )
+        if conn.state == 'open':
+            fire_event(ConnectionReused(conn_name=conn_name))
         else:
             conn.handle = LazyHandle(self.open)
 
@@ -159,7 +160,7 @@ class BaseConnectionManager(metaclass=abc.ABCMeta):
     def cancel_open(self) -> Optional[List[str]]:
         """Cancel all open connections on the adapter. (passable)"""
         raise dbt.exceptions.NotImplementedException(
-            "`cancel_open` is not implemented for this adapter!"
+            '`cancel_open` is not implemented for this adapter!'
         )
 
     @abc.abstractclassmethod
@@ -173,7 +174,7 @@ class BaseConnectionManager(metaclass=abc.ABCMeta):
         connection should not be in either in_use or available.
         """
         raise dbt.exceptions.NotImplementedException(
-            "`open` is not implemented for this adapter!"
+            '`open` is not implemented for this adapter!'
         )
 
     def release(self) -> None:
@@ -194,14 +195,10 @@ class BaseConnectionManager(metaclass=abc.ABCMeta):
     def cleanup_all(self) -> None:
         with self.lock:
             for connection in self.thread_connections.values():
-                if connection.state not in {"closed", "init"}:
-                    logger.debug(
-                        "Connection '{}' was left open.".format(connection.name)
-                    )
+                if connection.state not in {'closed', 'init'}:
+                    fire_event(ConnectionLeftOpen(conn_name=connection.name))
                 else:
-                    logger.debug(
-                        "Connection '{}' was properly closed.".format(connection.name)
-                    )
+                    fire_event(ConnectionClosed(conn_name=connection.name))
                 self.close(connection)
 
             # garbage collect these connections
@@ -211,14 +208,14 @@ class BaseConnectionManager(metaclass=abc.ABCMeta):
     def begin(self) -> None:
         """Begin a transaction. (passable)"""
         raise dbt.exceptions.NotImplementedException(
-            "`begin` is not implemented for this adapter!"
+            '`begin` is not implemented for this adapter!'
         )
 
     @abc.abstractmethod
     def commit(self) -> None:
         """Commit a transaction. (passable)"""
         raise dbt.exceptions.NotImplementedException(
-            "`commit` is not implemented for this adapter!"
+            '`commit` is not implemented for this adapter!'
         )
 
     @classmethod
@@ -227,52 +224,40 @@ class BaseConnectionManager(metaclass=abc.ABCMeta):
         try:
             connection.handle.rollback()
         except Exception:
-            logger.debug("Failed to rollback {}".format(connection.name), exc_info=True)
+            fire_event(RollbackFailed(conn_name=connection.name))
 
     @classmethod
     def _close_handle(cls, connection: Connection) -> None:
         """Perform the actual close operation."""
         # On windows, sometimes connection handles don't have a close() attr.
-        if hasattr(connection.handle, "close"):
-            logger.debug(f"On {connection.name}: Close")
+        if hasattr(connection.handle, 'close'):
+            fire_event(ConnectionClosed2(conn_name=connection.name))
             connection.handle.close()
         else:
-            logger.debug(f"On {connection.name}: No close available on handle")
+            fire_event(ConnectionLeftOpen2(conn_name=connection.name))
 
     @classmethod
     def _rollback(cls, connection: Connection) -> None:
         """Roll back the given connection."""
-        if flags.STRICT_MODE:
-            if not isinstance(connection, Connection):
-                raise dbt.exceptions.CompilerException(
-                    f"In _rollback, got {connection} - not a Connection!"
-                )
-
         if connection.transaction_open is False:
             raise dbt.exceptions.InternalException(
-                f"Tried to rollback transaction on connection "
+                f'Tried to rollback transaction on connection '
                 f'"{connection.name}", but it does not have one open!'
             )
 
-        logger.debug(f"On {connection.name}: ROLLBACK")
+        fire_event(Rollback(conn_name=connection.name))
         cls._rollback_handle(connection)
 
         connection.transaction_open = False
 
     @classmethod
     def close(cls, connection: Connection) -> Connection:
-        if flags.STRICT_MODE:
-            if not isinstance(connection, Connection):
-                raise dbt.exceptions.CompilerException(
-                    f"In close, got {connection} - not a Connection!"
-                )
-
         # if the connection is in closed or init, there's nothing to do
         if connection.state in {ConnectionState.CLOSED, ConnectionState.INIT}:
             return connection
 
         if connection.transaction_open and connection.handle:
-            logger.debug("On {}: ROLLBACK".format(connection.name))
+            fire_event(Rollback(conn_name=connection.name))
             cls._rollback_handle(connection)
         connection.transaction_open = False
 
@@ -306,5 +291,5 @@ class BaseConnectionManager(metaclass=abc.ABCMeta):
         :rtype: Tuple[Union[str, AdapterResponse], agate.Table]
         """
         raise dbt.exceptions.NotImplementedException(
-            "`execute` is not implemented for this adapter!"
+            '`execute` is not implemented for this adapter!'
         )

core/dbt/adapters/base/meta.py

@@ -30,11 +30,9 @@ class _Available:
             x.update(big_expensive_db_query())
             return x
         """
-
         def inner(func):
             func._parse_replacement_ = parse_replacement
             return self(func)
-
         return inner
 
     def deprecated(
@@ -59,14 +57,13 @@ class _Available:
         The optional parse_replacement, if provided, will provide a parse-time
         replacement for the actual method (see `available.parse`).
         """
-
         def wrapper(func):
             func_name = func.__name__
             renamed_method(func_name, supported_name)
 
             @wraps(func)
             def inner(*args, **kwargs):
-                warn("adapter:{}".format(func_name))
+                warn('adapter:{}'.format(func_name))
                 return func(*args, **kwargs)
 
             if parse_replacement:
@@ -74,7 +71,6 @@ class _Available:
             else:
                 available_function = self
             return available_function(inner)
-
         return wrapper
 
     def parse_none(self, func: Callable) -> Callable:
@@ -113,14 +109,14 @@ class AdapterMeta(abc.ABCMeta):
 
         # collect base class data first
         for base in bases:
-            available.update(getattr(base, "_available_", set()))
-            replacements.update(getattr(base, "_parse_replacements_", set()))
+            available.update(getattr(base, '_available_', set()))
+            replacements.update(getattr(base, '_parse_replacements_', set()))
 
         # override with local data if it exists
         for name, value in namespace.items():
-            if getattr(value, "_is_available_", False):
+            if getattr(value, '_is_available_', False):
                 available.add(name)
-            parse_replacement = getattr(value, "_parse_replacement_", None)
+            parse_replacement = getattr(value, '_parse_replacement_', None)
             if parse_replacement is not None:
                 replacements[name] = parse_replacement
 

core/dbt/adapters/base/plugin.py

@@ -8,10 +8,11 @@ from dbt.adapters.protocol import AdapterProtocol
 def project_name_from_path(include_path: str) -> str:
     # avoid an import cycle
     from dbt.config.project import Project
-
     partial = Project.partial_load(include_path)
     if partial.project_name is None:
-        raise CompilationException(f"Invalid project at {include_path}: name not set!")
+        raise CompilationException(
+            f'Invalid project at {include_path}: name not set!'
+        )
     return partial.project_name
 
 
@@ -22,13 +23,12 @@ class AdapterPlugin:
     :param dependencies: A list of adapter names that this adapter depends
         upon.
     """
-
     def __init__(
         self,
         adapter: Type[AdapterProtocol],
         credentials: Type[Credentials],
         include_path: str,
-        dependencies: Optional[List[str]] = None,
+        dependencies: Optional[List[str]] = None
     ):
 
         self.adapter: Type[AdapterProtocol] = adapter

core/dbt/adapters/base/query_headers.py

@@ -15,7 +15,7 @@ class NodeWrapper:
         self._inner_node = node
 
     def __getattr__(self, name):
-        return getattr(self._inner_node, name, "")
+        return getattr(self._inner_node, name, '')
 
 
 class _QueryComment(local):
@@ -24,7 +24,6 @@ class _QueryComment(local):
         - the current thread's query comment.
         - a source_name indicating what set the current thread's query comment
     """
-
     def __init__(self, initial):
         self.query_comment: Optional[str] = initial
         self.append = False
@@ -36,16 +35,16 @@ class _QueryComment(local):
         if self.append:
             # replace last ';' with '<comment>;'
             sql = sql.rstrip()
-            if sql[-1] == ";":
+            if sql[-1] == ';':
                 sql = sql[:-1]
-                return "{}\n/* {} */;".format(sql, self.query_comment.strip())
+                return '{}\n/* {} */;'.format(sql, self.query_comment.strip())
 
-            return "{}\n/* {} */".format(sql, self.query_comment.strip())
+            return '{}\n/* {} */'.format(sql, self.query_comment.strip())
 
-        return "/* {} */\n{}".format(self.query_comment.strip(), sql)
+        return '/* {} */\n{}'.format(self.query_comment.strip(), sql)
 
     def set(self, comment: Optional[str], append: bool):
-        if isinstance(comment, str) and "*/" in comment:
+        if isinstance(comment, str) and '*/' in comment:
             # tell the user "no" so they don't hurt themselves by writing
             # garbage
             raise RuntimeException(
@@ -64,17 +63,15 @@ class MacroQueryStringSetter:
         self.config = config
 
         comment_macro = self._get_comment_macro()
-        self.generator: QueryStringFunc = lambda name, model: ""
+        self.generator: QueryStringFunc = lambda name, model: ''
         # if the comment value was None or the empty string, just skip it
         if comment_macro:
             assert isinstance(comment_macro, str)
-            macro = "\n".join(
-                (
-                    "{%- macro query_comment_macro(connection_name, node) -%}",
-                    comment_macro,
-                    "{% endmacro %}",
-                )
-            )
+            macro = '\n'.join((
+                '{%- macro query_comment_macro(connection_name, node) -%}',
+                comment_macro,
+                '{% endmacro %}'
+            ))
             ctx = self._get_context()
             self.generator = QueryStringGenerator(macro, ctx)
         self.comment = _QueryComment(None)
@@ -90,7 +87,7 @@ class MacroQueryStringSetter:
         return self.comment.add(sql)
 
     def reset(self):
-        self.set("master", None)
+        self.set('master', None)
 
     def set(self, name: str, node: Optional[CompileResultNode]):
         wrapped: Optional[NodeWrapper] = None

core/dbt/adapters/base/relation.py

@@ -1,16 +1,13 @@
 from collections.abc import Hashable
 from dataclasses import dataclass
-from typing import Optional, TypeVar, Any, Type, Dict, Union, Iterator, Tuple, Set
+from typing import (
+    Optional, TypeVar, Any, Type, Dict, Union, Iterator, Tuple, Set
+)
 
 from dbt.contracts.graph.compiled import CompiledNode
 from dbt.contracts.graph.parsed import ParsedSourceDefinition, ParsedNode
 from dbt.contracts.relation import (
-    RelationType,
-    ComponentName,
-    HasQuoting,
-    FakeAPIObject,
-    Policy,
-    Path,
+    RelationType, ComponentName, HasQuoting, FakeAPIObject, Policy, Path
 )
 from dbt.exceptions import InternalException
 from dbt.node_types import NodeType
@@ -19,7 +16,7 @@ from dbt.utils import filter_null_values, deep_merge, classproperty
 import dbt.exceptions
 
 
-Self = TypeVar("Self", bound="BaseRelation")
+Self = TypeVar('Self', bound='BaseRelation')
 
 
 @dataclass(frozen=True, eq=False, repr=False)
@@ -43,7 +40,7 @@ class BaseRelation(FakeAPIObject, Hashable):
             if field.name == field_name:
                 return field
         # this should be unreachable
-        raise ValueError(f"BaseRelation has no {field_name} field!")
+        raise ValueError(f'BaseRelation has no {field_name} field!')
 
     def __eq__(self, other):
         if not isinstance(other, self.__class__):
@@ -52,18 +49,20 @@ class BaseRelation(FakeAPIObject, Hashable):
 
     @classmethod
     def get_default_quote_policy(cls) -> Policy:
-        return cls._get_field_named("quote_policy").default
+        return cls._get_field_named('quote_policy').default
 
     @classmethod
     def get_default_include_policy(cls) -> Policy:
-        return cls._get_field_named("include_policy").default
+        return cls._get_field_named('include_policy').default
 
     def get(self, key, default=None):
         """Override `.get` to return a metadata object so we don't break
         dbt_utils.
         """
-        if key == "metadata":
-            return {"type": self.__class__.__name__}
+        if key == 'metadata':
+            return {
+                'type': self.__class__.__name__
+            }
         return super().get(key, default)
 
     def matches(
@@ -72,19 +71,16 @@ class BaseRelation(FakeAPIObject, Hashable):
         schema: Optional[str] = None,
         identifier: Optional[str] = None,
     ) -> bool:
-        search = filter_null_values(
-            {
-                ComponentName.Database: database,
-                ComponentName.Schema: schema,
-                ComponentName.Identifier: identifier,
-            }
-        )
+        search = filter_null_values({
+            ComponentName.Database: database,
+            ComponentName.Schema: schema,
+            ComponentName.Identifier: identifier
+        })
 
         if not search:
             # nothing was passed in
             raise dbt.exceptions.RuntimeException(
-                "Tried to match relation, but no search path was passed!"
-            )
+                "Tried to match relation, but no search path was passed!")
 
         exact_match = True
         approximate_match = True
@@ -93,7 +89,10 @@ class BaseRelation(FakeAPIObject, Hashable):
             if not self._is_exactish_match(k, v):
                 exact_match = False
 
-            if self.path.get_lowered_part(k) != v.lower():
+            if (
+                self.path.get_lowered_part(k).strip(self.quote_character) !=
+                v.lower().strip(self.quote_character)
+            ):
                 approximate_match = False
 
         if approximate_match and not exact_match:
@@ -113,13 +112,11 @@ class BaseRelation(FakeAPIObject, Hashable):
         schema: Optional[bool] = None,
         identifier: Optional[bool] = None,
     ) -> Self:
-        policy = filter_null_values(
-            {
-                ComponentName.Database: database,
-                ComponentName.Schema: schema,
-                ComponentName.Identifier: identifier,
-            }
-        )
+        policy = filter_null_values({
+            ComponentName.Database: database,
+            ComponentName.Schema: schema,
+            ComponentName.Identifier: identifier
+        })
 
         new_quote_policy = self.quote_policy.replace_dict(policy)
         return self.replace(quote_policy=new_quote_policy)
@@ -130,18 +127,16 @@ class BaseRelation(FakeAPIObject, Hashable):
         schema: Optional[bool] = None,
         identifier: Optional[bool] = None,
     ) -> Self:
-        policy = filter_null_values(
-            {
-                ComponentName.Database: database,
-                ComponentName.Schema: schema,
-                ComponentName.Identifier: identifier,
-            }
-        )
+        policy = filter_null_values({
+            ComponentName.Database: database,
+            ComponentName.Schema: schema,
+            ComponentName.Identifier: identifier
+        })
 
         new_include_policy = self.include_policy.replace_dict(policy)
         return self.replace(include_policy=new_include_policy)
 
-    def information_schema(self, view_name=None) -> "InformationSchema":
+    def information_schema(self, view_name=None) -> 'InformationSchema':
         # some of our data comes from jinja, where things can be `Undefined`.
         if not isinstance(view_name, str):
             view_name = None
@@ -151,10 +146,10 @@ class BaseRelation(FakeAPIObject, Hashable):
         info_schema = InformationSchema.from_relation(self, view_name)
         return info_schema.incorporate(path={"schema": None})
 
-    def information_schema_only(self) -> "InformationSchema":
+    def information_schema_only(self) -> 'InformationSchema':
         return self.information_schema()
 
-    def without_identifier(self) -> "BaseRelation":
+    def without_identifier(self) -> 'BaseRelation':
         """Return a form of this relation that only has the database and schema
         set to included. To get the appropriately-quoted form the schema out of
         the result (for use as part of a query), use `.render()`. To get the
@@ -165,7 +160,7 @@ class BaseRelation(FakeAPIObject, Hashable):
         return self.include(identifier=False).replace_path(identifier=None)
 
     def _render_iterator(
-        self,
+        self
     ) -> Iterator[Tuple[Optional[ComponentName], Optional[str]]]:
 
         for key in ComponentName:
@@ -178,10 +173,13 @@ class BaseRelation(FakeAPIObject, Hashable):
 
     def render(self) -> str:
         # if there is nothing set, this will return the empty string.
-        return ".".join(part for _, part in self._render_iterator() if part is not None)
+        return '.'.join(
+            part for _, part in self._render_iterator()
+            if part is not None
+        )
 
     def quoted(self, identifier):
-        return "{quote_char}{identifier}{quote_char}".format(
+        return '{quote_char}{identifier}{quote_char}'.format(
             quote_char=self.quote_character,
             identifier=identifier,
         )
@@ -191,11 +189,11 @@ class BaseRelation(FakeAPIObject, Hashable):
         cls: Type[Self], source: ParsedSourceDefinition, **kwargs: Any
     ) -> Self:
         source_quoting = source.quoting.to_dict(omit_none=True)
-        source_quoting.pop("column", None)
+        source_quoting.pop('column', None)
         quote_policy = deep_merge(
             cls.get_default_quote_policy().to_dict(omit_none=True),
             source_quoting,
-            kwargs.get("quote_policy", {}),
+            kwargs.get('quote_policy', {}),
         )
 
         return cls.create(
@@ -203,12 +201,12 @@ class BaseRelation(FakeAPIObject, Hashable):
             schema=source.schema,
             identifier=source.identifier,
             quote_policy=quote_policy,
-            **kwargs,
+            **kwargs
         )
 
     @staticmethod
     def add_ephemeral_prefix(name: str):
-        return f"__dbt__cte__{name}"
+        return f'__dbt__cte__{name}'
 
     @classmethod
     def create_ephemeral_from_node(
@@ -241,8 +239,7 @@ class BaseRelation(FakeAPIObject, Hashable):
             schema=node.schema,
             identifier=node.alias,
             quote_policy=quote_policy,
-            **kwargs,
-        )
+            **kwargs)
 
     @classmethod
     def create_from(
@@ -254,16 +251,15 @@ class BaseRelation(FakeAPIObject, Hashable):
         if node.resource_type == NodeType.Source:
             if not isinstance(node, ParsedSourceDefinition):
                 raise InternalException(
-                    "type mismatch, expected ParsedSourceDefinition but got {}".format(
-                        type(node)
-                    )
+                    'type mismatch, expected ParsedSourceDefinition but got {}'
+                    .format(type(node))
                 )
             return cls.create_from_source(node, **kwargs)
         else:
             if not isinstance(node, (ParsedNode, CompiledNode)):
                 raise InternalException(
-                    "type mismatch, expected ParsedNode or CompiledNode but "
-                    "got {}".format(type(node))
+                    'type mismatch, expected ParsedNode or CompiledNode but '
+                    'got {}'.format(type(node))
                 )
             return cls.create_from_node(config, node, **kwargs)
 
@@ -276,16 +272,14 @@ class BaseRelation(FakeAPIObject, Hashable):
         type: Optional[RelationType] = None,
         **kwargs,
     ) -> Self:
-        kwargs.update(
-            {
-                "path": {
-                    "database": database,
-                    "schema": schema,
-                    "identifier": identifier,
-                },
-                "type": type,
-            }
-        )
+        kwargs.update({
+            'path': {
+                'database': database,
+                'schema': schema,
+                'identifier': identifier,
+            },
+            'type': type,
+        })
         return cls.from_dict(kwargs)
 
     def __repr__(self) -> str:
@@ -351,7 +345,7 @@ class BaseRelation(FakeAPIObject, Hashable):
         return RelationType
 
 
-Info = TypeVar("Info", bound="InformationSchema")
+Info = TypeVar('Info', bound='InformationSchema')
 
 
 @dataclass(frozen=True, eq=False, repr=False)
@@ -361,7 +355,7 @@ class InformationSchema(BaseRelation):
     def __post_init__(self):
         if not isinstance(self.information_schema_view, (type(None), str)):
             raise dbt.exceptions.CompilationException(
-                "Got an invalid name: {}".format(self.information_schema_view)
+                'Got an invalid name: {}'.format(self.information_schema_view)
             )
 
     @classmethod
@@ -371,7 +365,7 @@ class InformationSchema(BaseRelation):
         return Path(
             database=relation.database,
             schema=relation.schema,
-            identifier="INFORMATION_SCHEMA",
+            identifier='INFORMATION_SCHEMA',
         )
 
     @classmethod
@@ -402,7 +396,9 @@ class InformationSchema(BaseRelation):
         relation: BaseRelation,
         information_schema_view: Optional[str],
     ) -> Info:
-        include_policy = cls.get_include_policy(relation, information_schema_view)
+        include_policy = cls.get_include_policy(
+            relation, information_schema_view
+        )
         quote_policy = cls.get_quote_policy(relation, information_schema_view)
         path = cls.get_path(relation, information_schema_view)
         return cls(
@@ -424,7 +420,6 @@ class SchemaSearchMap(Dict[InformationSchema, Set[Optional[str]]]):
     search for what schemas. The schema values are all lowercased to avoid
     duplication.
     """
-
     def add(self, relation: BaseRelation):
         key = relation.information_schema_only()
         if key not in self:
@@ -434,27 +429,31 @@ class SchemaSearchMap(Dict[InformationSchema, Set[Optional[str]]]):
             schema = relation.schema.lower()
         self[key].add(schema)
 
-    def search(self) -> Iterator[Tuple[InformationSchema, Optional[str]]]:
+    def search(
+        self
+    ) -> Iterator[Tuple[InformationSchema, Optional[str]]]:
         for information_schema_name, schemas in self.items():
             for schema in schemas:
                 yield information_schema_name, schema
 
-    def flatten(self):
+    def flatten(self, allow_multiple_databases: bool = False):
         new = self.__class__()
 
-        # make sure we don't have duplicates
-        seen = {r.database.lower() for r in self if r.database}
-        if len(seen) > 1:
-            dbt.exceptions.raise_compiler_error(str(seen))
+        # make sure we don't have multiple databases if allow_multiple_databases is set to False
+        if not allow_multiple_databases:
+            seen = {r.database.lower() for r in self if r.database}
+            if len(seen) > 1:
+                dbt.exceptions.raise_compiler_error(str(seen))
 
         for information_schema_name, schema in self.search():
-            path = {"database": information_schema_name.database, "schema": schema}
-            new.add(
-                information_schema_name.incorporate(
-                    path=path,
-                    quote_policy={"database": False},
-                    include_policy={"database": False},
-                )
-            )
+            path = {
+                'database': information_schema_name.database,
+                'schema': schema
+            }
+            new.add(information_schema_name.incorporate(
+                path=path,
+                quote_policy={'database': False},
+                include_policy={'database': False},
+            ))
 
         return new

core/dbt/adapters/cache.py

@@ -1,25 +1,27 @@
-from collections import namedtuple
-from copy import deepcopy
-from typing import List, Iterable, Optional, Dict, Set, Tuple, Any
 import threading
+from copy import deepcopy
+from typing import Any, Dict, Iterable, List, Optional, Set, Tuple
 
-from dbt.logger import CACHE_LOGGER as logger
-from dbt.utils import lowercase
+from dbt.adapters.reference_keys import _make_key, _ReferenceKey
 import dbt.exceptions
-
-_ReferenceKey = namedtuple("_ReferenceKey", "database schema identifier")
-
-
-def _make_key(relation) -> _ReferenceKey:
-    """Make _ReferenceKeys with lowercase values for the cache so we don't have
-    to keep track of quoting
-    """
-    # databases and schemas can both be None
-    return _ReferenceKey(
-        lowercase(relation.database),
-        lowercase(relation.schema),
-        lowercase(relation.identifier),
-    )
+from dbt.events.functions import fire_event
+from dbt.events.types import (
+    AddLink,
+    AddRelation,
+    DropCascade,
+    DropMissingRelation,
+    DropRelation,
+    DumpAfterAddGraph,
+    DumpAfterRenameSchema,
+    DumpBeforeAddGraph,
+    DumpBeforeRenameSchema,
+    RenameSchema,
+    TemporaryRelation,
+    UncachedRelation,
+    UpdateReference
+)
+from dbt.utils import lowercase
+from dbt.helper_types import Lazy
 
 
 def dot_separated(key: _ReferenceKey) -> str:
@@ -27,7 +29,7 @@ def dot_separated(key: _ReferenceKey) -> str:
 
     :param _ReferenceKey key: The key to stringify.
     """
-    return ".".join(map(str, key))
+    return '.'.join(map(str, key))
 
 
 class _CachedRelation:
@@ -39,14 +41,13 @@ class _CachedRelation:
         that refer to this relation.
     :attr BaseRelation inner: The underlying dbt relation.
     """
-
     def __init__(self, inner):
         self.referenced_by = {}
         self.inner = inner
 
     def __str__(self) -> str:
         return (
-            "_CachedRelation(database={}, schema={}, identifier={}, inner={})"
+            '_CachedRelation(database={}, schema={}, identifier={}, inner={})'
         ).format(self.database, self.schema, self.identifier, self.inner)
 
     @property
@@ -81,7 +82,7 @@ class _CachedRelation:
         """
         return _make_key(self)
 
-    def add_reference(self, referrer: "_CachedRelation"):
+    def add_reference(self, referrer: '_CachedRelation'):
         """Add a reference from referrer to self, indicating that if this node
         were drop...cascaded, the referrer would be dropped as well.
 
@@ -125,9 +126,9 @@ class _CachedRelation:
         # table_name is ever anything but the identifier (via .create())
         self.inner = self.inner.incorporate(
             path={
-                "database": new_relation.inner.database,
-                "schema": new_relation.inner.schema,
-                "identifier": new_relation.inner.identifier,
+                'database': new_relation.inner.database,
+                'schema': new_relation.inner.schema,
+                'identifier': new_relation.inner.identifier
             },
         )
 
@@ -143,9 +144,8 @@ class _CachedRelation:
         """
         if new_key in self.referenced_by:
             dbt.exceptions.raise_cache_inconsistent(
-                'in rename of "{}" -> "{}", new name is in the cache already'.format(
-                    old_key, new_key
-                )
+                'in rename of "{}" -> "{}", new name is in the cache already'
+                .format(old_key, new_key)
             )
 
         if old_key not in self.referenced_by:
@@ -161,12 +161,6 @@ class _CachedRelation:
         return [dot_separated(r) for r in self.referenced_by]
 
 
-def lazy_log(msg, func):
-    if logger.disabled:
-        return
-    logger.debug(msg.format(func()))
-
-
 class RelationsCache:
     """A cache of the relations known to dbt. Keeps track of relationships
     declared between tables and handles renames/drops as a real database would.
@@ -176,16 +170,13 @@ class RelationsCache:
         The adapters also hold this lock while filling the cache.
     :attr Set[str] schemas: The set of known/cached schemas, all lowercased.
     """
-
     def __init__(self) -> None:
         self.relations: Dict[_ReferenceKey, _CachedRelation] = {}
         self.lock = threading.RLock()
         self.schemas: Set[Tuple[Optional[str], Optional[str]]] = set()
 
     def add_schema(
-        self,
-        database: Optional[str],
-        schema: Optional[str],
+        self, database: Optional[str], schema: Optional[str],
     ) -> None:
         """Add a schema to the set of known schemas (case-insensitive)
 
@@ -195,9 +186,7 @@ class RelationsCache:
         self.schemas.add((lowercase(database), lowercase(schema)))
 
     def drop_schema(
-        self,
-        database: Optional[str],
-        schema: Optional[str],
+        self, database: Optional[str], schema: Optional[str],
     ) -> None:
         """Drop the given schema and remove it from the set of known schemas.
 
@@ -272,21 +261,22 @@ class RelationsCache:
             return
         if referenced is None:
             dbt.exceptions.raise_cache_inconsistent(
-                "in add_link, referenced link key {} not in cache!".format(
-                    referenced_key
-                )
+                'in add_link, referenced link key {} not in cache!'
+                .format(referenced_key)
             )
 
         dependent = self.relations.get(dependent_key)
         if dependent is None:
             dbt.exceptions.raise_cache_inconsistent(
-                "in add_link, dependent link key {} not in cache!".format(dependent_key)
+                'in add_link, dependent link key {} not in cache!'
+                .format(dependent_key)
             )
 
         assert dependent is not None  # we just raised!
 
         referenced.add_reference(dependent)
 
+    # TODO: Is this dead code?  I can't seem to find it grepping the codebase.
     def add_link(self, referenced, dependent):
         """Add a link between two relations to the database. If either relation
         does not exist, it will be added as an "external" relation.
@@ -302,28 +292,26 @@ class RelationsCache:
         :raises InternalError: If either entry does not exist.
         """
         ref_key = _make_key(referenced)
+        dep_key = _make_key(dependent)
         if (ref_key.database, ref_key.schema) not in self:
             # if we have not cached the referenced schema at all, we must be
             # referring to a table outside our control. There's no need to make
             # a link - we will never drop the referenced relation during a run.
-            logger.debug(
-                "{dep!s} references {ref!s} but {ref.database}.{ref.schema} "
-                "is not in the cache, skipping assumed external relation".format(
-                    dep=dependent, ref=ref_key
-                )
-            )
+            fire_event(UncachedRelation(dep_key=dep_key, ref_key=ref_key))
             return
         if ref_key not in self.relations:
             # Insert a dummy "external" relation.
-            referenced = referenced.replace(type=referenced.External)
+            referenced = referenced.replace(
+                type=referenced.External
+            )
             self.add(referenced)
-
-        dep_key = _make_key(dependent)
         if dep_key not in self.relations:
             # Insert a dummy "external" relation.
-            dependent = dependent.replace(type=referenced.External)
+            dependent = dependent.replace(
+                type=referenced.External
+            )
             self.add(dependent)
-        logger.debug("adding link, {!s} references {!s}".format(dep_key, ref_key))
+        fire_event(AddLink(dep_key=dep_key, ref_key=ref_key))
         with self.lock:
             self._add_link(ref_key, dep_key)
 
@@ -334,14 +322,12 @@ class RelationsCache:
         :param BaseRelation relation: The underlying relation.
         """
         cached = _CachedRelation(relation)
-        logger.debug("Adding relation: {!s}".format(cached))
-
-        lazy_log("before adding: {!s}", self.dump_graph)
+        fire_event(AddRelation(relation=_make_key(cached)))
+        fire_event(DumpBeforeAddGraph(dump=Lazy.defer(lambda: self.dump_graph())))
 
         with self.lock:
             self._setdefault(cached)
-
-        lazy_log("after adding: {!s}", self.dump_graph)
+        fire_event(DumpAfterAddGraph(dump=Lazy.defer(lambda: self.dump_graph())))
 
     def _remove_refs(self, keys):
         """Removes all references to all entries in keys. This does not
@@ -356,17 +342,17 @@ class RelationsCache:
         for cached in self.relations.values():
             cached.release_references(keys)
 
-    def _drop_cascade_relation(self, dropped):
+    def _drop_cascade_relation(self, dropped_key):
         """Drop the given relation and cascade it appropriately to all
         dependent relations.
 
         :param _CachedRelation dropped: An existing _CachedRelation to drop.
         """
-        if dropped not in self.relations:
-            logger.debug("dropped a nonexistent relationship: {!s}".format(dropped))
+        if dropped_key not in self.relations:
+            fire_event(DropMissingRelation(relation=dropped_key))
             return
-        consequences = self.relations[dropped].collect_consequences()
-        logger.debug("drop {} is cascading to {}".format(dropped, consequences))
+        consequences = self.relations[dropped_key].collect_consequences()
+        fire_event(DropCascade(dropped=dropped_key, consequences=consequences))
         self._remove_refs(consequences)
 
     def drop(self, relation):
@@ -380,10 +366,10 @@ class RelationsCache:
         :param str schema: The schema of the relation to drop.
         :param str identifier: The identifier of the relation to drop.
         """
-        dropped = _make_key(relation)
-        logger.debug("Dropping relation: {!s}".format(dropped))
+        dropped_key = _make_key(relation)
+        fire_event(DropRelation(dropped=dropped_key))
         with self.lock:
-            self._drop_cascade_relation(dropped)
+            self._drop_cascade_relation(dropped_key)
 
     def _rename_relation(self, old_key, new_relation):
         """Rename a relation named old_key to new_key, updating references.
@@ -404,10 +390,8 @@ class RelationsCache:
         # update all the relations that refer to it
         for cached in self.relations.values():
             if cached.is_referenced_by(old_key):
-                logger.debug(
-                    "updated reference from {0} -> {2} to {1} -> {2}".format(
-                        old_key, new_key, cached.key()
-                    )
+                fire_event(
+                    UpdateReference(old_key=old_key, new_key=new_key, cached_key=cached.key())
                 )
                 cached.rename_key(old_key, new_key)
 
@@ -432,17 +416,12 @@ class RelationsCache:
         """
         if new_key in self.relations:
             dbt.exceptions.raise_cache_inconsistent(
-                "in rename, new key {} already in cache: {}".format(
-                    new_key, list(self.relations.keys())
-                )
+                'in rename, new key {} already in cache: {}'
+                .format(new_key, list(self.relations.keys()))
             )
 
         if old_key not in self.relations:
-            logger.debug(
-                "old key {} not found in self.relations, assuming temporary".format(
-                    old_key
-                )
-            )
+            fire_event(TemporaryRelation(key=old_key))
             return False
         return True
 
@@ -460,9 +439,9 @@ class RelationsCache:
         """
         old_key = _make_key(old)
         new_key = _make_key(new)
-        logger.debug("Renaming relation {!s} to {!s}".format(old_key, new_key))
+        fire_event(RenameSchema(old_key=old_key, new_key=new_key))
 
-        lazy_log("before rename: {!s}", self.dump_graph)
+        fire_event(DumpBeforeRenameSchema(dump=Lazy.defer(lambda: self.dump_graph())))
 
         with self.lock:
             if self._check_rename_constraints(old_key, new_key):
@@ -470,7 +449,7 @@ class RelationsCache:
             else:
                 self._setdefault(_CachedRelation(new))
 
-        lazy_log("after rename: {!s}", self.dump_graph)
+        fire_event(DumpAfterRenameSchema(dump=Lazy.defer(lambda: self.dump_graph())))
 
     def get_relations(
         self, database: Optional[str], schema: Optional[str]
@@ -485,14 +464,14 @@ class RelationsCache:
         schema = lowercase(schema)
         with self.lock:
             results = [
-                r.inner
-                for r in self.relations.values()
-                if (lowercase(r.schema) == schema and lowercase(r.database) == database)
+                r.inner for r in self.relations.values()
+                if (lowercase(r.schema) == schema and
+                    lowercase(r.database) == database)
             ]
 
         if None in results:
             dbt.exceptions.raise_cache_inconsistent(
-                "in get_relations, a None relation was found in the cache!"
+                'in get_relations, a None relation was found in the cache!'
             )
         return results
 

core/dbt/adapters/factory.py

@@ -8,10 +8,9 @@ from dbt.include.global_project import (
     PACKAGE_PATH as GLOBAL_PROJECT_PATH,
     PROJECT_NAME as GLOBAL_PROJECT_NAME,
 )
-from dbt.logger import GLOBAL_LOGGER as logger
+from dbt.events.functions import fire_event
+from dbt.events.types import AdapterImportError, PluginLoadError
 from dbt.contracts.connection import Credentials, AdapterRequiredConfig
-
-
 from dbt.adapters.protocol import (
     AdapterProtocol,
     AdapterConfig,
@@ -50,7 +49,9 @@ class AdapterContainer:
         adapter = self.get_adapter_class_by_name(name)
         return adapter.Relation
 
-    def get_config_class_by_name(self, name: str) -> Type[AdapterConfig]:
+    def get_config_class_by_name(
+        self, name: str
+    ) -> Type[AdapterConfig]:
         adapter = self.get_adapter_class_by_name(name)
         return adapter.AdapterSpecificConfigs
 
@@ -60,24 +61,25 @@ class AdapterContainer:
         # singletons
         try:
             # mypy doesn't think modules have any attributes.
-            mod: Any = import_module("." + name, "dbt.adapters")
+            mod: Any = import_module('.' + name, 'dbt.adapters')
         except ModuleNotFoundError as exc:
             # if we failed to import the target module in particular, inform
             # the user about it via a runtime error
-            if exc.name == "dbt.adapters." + name:
-                raise RuntimeException(f"Could not find adapter type {name}!")
-            logger.info(f"Error importing adapter: {exc}")
+            if exc.name == 'dbt.adapters.' + name:
+                fire_event(AdapterImportError(exc=exc))
+                raise RuntimeException(f'Could not find adapter type {name}!')
             # otherwise, the error had to have come from some underlying
             # library. Log the stack trace.
-            logger.debug("", exc_info=True)
+
+            fire_event(PluginLoadError())
             raise
         plugin: AdapterPlugin = mod.Plugin
         plugin_type = plugin.adapter.type()
 
         if plugin_type != name:
             raise RuntimeException(
-                f"Expected to find adapter with type named {name}, got "
-                f"adapter with type {plugin_type}"
+                f'Expected to find adapter with type named {name}, got '
+                f'adapter with type {plugin_type}'
             )
 
         with self.lock:
@@ -107,7 +109,8 @@ class AdapterContainer:
         return self.adapters[adapter_name]
 
     def reset_adapters(self):
-        """Clear the adapters. This is useful for tests, which change configs."""
+        """Clear the adapters. This is useful for tests, which change configs.
+        """
         with self.lock:
             for adapter in self.adapters.values():
                 adapter.cleanup_connections()
@@ -137,7 +140,9 @@ class AdapterContainer:
             try:
                 plugin = self.plugins[plugin_name]
             except KeyError:
-                raise InternalException(f"No plugin found for {plugin_name}") from None
+                raise InternalException(
+                    f'No plugin found for {plugin_name}'
+                ) from None
             plugins.append(plugin)
             seen.add(plugin_name)
             if plugin.dependencies is None:
@@ -161,7 +166,7 @@ class AdapterContainer:
                 path = self.packages[package_name]
             except KeyError:
                 raise InternalException(
-                    f"No internal package listing found for {package_name}"
+                    f'No internal package listing found for {package_name}'
                 )
             paths.append(path)
         return paths
@@ -182,7 +187,8 @@ def get_adapter(config: AdapterRequiredConfig):
 
 
 def reset_adapters():
-    """Clear the adapters. This is useful for tests, which change configs."""
+    """Clear the adapters. This is useful for tests, which change configs.
+    """
     FACTORY.reset_adapters()
 
 

core/dbt/adapters/protocol.py

@@ -1,27 +1,17 @@
 from dataclasses import dataclass
 from typing import (
-    Type,
-    Hashable,
-    Optional,
-    ContextManager,
-    List,
-    Generic,
-    TypeVar,
-    ClassVar,
-    Tuple,
-    Union,
-    Dict,
-    Any,
+    Type, Hashable, Optional, ContextManager, List, Generic, TypeVar, ClassVar,
+    Tuple, Union, Dict, Any
 )
 from typing_extensions import Protocol
 
 import agate
 
-from dbt.contracts.connection import Connection, AdapterRequiredConfig, AdapterResponse
+from dbt.contracts.connection import (
+    Connection, AdapterRequiredConfig, AdapterResponse
+)
 from dbt.contracts.graph.compiled import (
-    CompiledNode,
-    ManifestNode,
-    NonSourceCompiledNode,
+    CompiledNode, ManifestNode, NonSourceCompiledNode
 )
 from dbt.contracts.graph.parsed import ParsedNode, ParsedSourceDefinition
 from dbt.contracts.graph.model_config import BaseConfig
@@ -44,7 +34,7 @@ class ColumnProtocol(Protocol):
     pass
 
 
-Self = TypeVar("Self", bound="RelationProtocol")
+Self = TypeVar('Self', bound='RelationProtocol')
 
 
 class RelationProtocol(Protocol):
@@ -74,11 +64,19 @@ class CompilerProtocol(Protocol):
         ...
 
 
-AdapterConfig_T = TypeVar("AdapterConfig_T", bound=AdapterConfig)
-ConnectionManager_T = TypeVar("ConnectionManager_T", bound=ConnectionManagerProtocol)
-Relation_T = TypeVar("Relation_T", bound=RelationProtocol)
-Column_T = TypeVar("Column_T", bound=ColumnProtocol)
-Compiler_T = TypeVar("Compiler_T", bound=CompilerProtocol)
+AdapterConfig_T = TypeVar(
+    'AdapterConfig_T', bound=AdapterConfig
+)
+ConnectionManager_T = TypeVar(
+    'ConnectionManager_T', bound=ConnectionManagerProtocol
+)
+Relation_T = TypeVar(
+    'Relation_T', bound=RelationProtocol
+)
+Column_T = TypeVar(
+    'Column_T', bound=ColumnProtocol
+)
+Compiler_T = TypeVar('Compiler_T', bound=CompilerProtocol)
 
 
 class AdapterProtocol(
@@ -89,7 +87,7 @@ class AdapterProtocol(
         Relation_T,
         Column_T,
         Compiler_T,
-    ],
+    ]
 ):
     AdapterSpecificConfigs: ClassVar[Type[AdapterConfig_T]]
     Column: ClassVar[Type[Column_T]]

core/dbt/adapters/reference_keys.py

@@ -0,0 +1,24 @@
+# this module exists to resolve circular imports with the events module
+
+from collections import namedtuple
+from typing import Optional
+
+
+_ReferenceKey = namedtuple('_ReferenceKey', 'database schema identifier')
+
+
+def lowercase(value: Optional[str]) -> Optional[str]:
+    if value is None:
+        return None
+    else:
+        return value.lower()
+
+
+def _make_key(relation) -> _ReferenceKey:
+    """Make _ReferenceKeys with lowercase values for the cache so we don't have
+    to keep track of quoting
+    """
+    # databases and schemas can both be None
+    return _ReferenceKey(lowercase(relation.database),
+                         lowercase(relation.schema),
+                         lowercase(relation.identifier))

core/dbt/adapters/sql/connections.py

@@ -7,9 +7,11 @@ import agate
 import dbt.clients.agate_helper
 import dbt.exceptions
 from dbt.adapters.base import BaseConnectionManager
-from dbt.contracts.connection import Connection, ConnectionState, AdapterResponse
-from dbt.logger import GLOBAL_LOGGER as logger
-from dbt import flags
+from dbt.contracts.connection import (
+    Connection, ConnectionState, AdapterResponse
+)
+from dbt.events.functions import fire_event
+from dbt.events.types import ConnectionUsed, SQLQuery, SQLCommit, SQLQueryStatus
 
 
 class SQLConnectionManager(BaseConnectionManager):
@@ -21,12 +23,11 @@ class SQLConnectionManager(BaseConnectionManager):
         - get_response
         - open
     """
-
     @abc.abstractmethod
     def cancel(self, connection: Connection):
         """Cancel the given connection."""
         raise dbt.exceptions.NotImplementedException(
-            "`cancel` is not implemented for this adapter!"
+            '`cancel` is not implemented for this adapter!'
         )
 
     def cancel_open(self) -> List[str]:
@@ -40,8 +41,8 @@ class SQLConnectionManager(BaseConnectionManager):
                 # if the connection failed, the handle will be None so we have
                 # nothing to cancel.
                 if (
-                    connection.handle is not None
-                    and connection.state == ConnectionState.OPEN
+                    connection.handle is not None and
+                    connection.state == ConnectionState.OPEN
                 ):
                     self.cancel(connection)
                 if connection.name is not None:
@@ -53,33 +54,30 @@ class SQLConnectionManager(BaseConnectionManager):
         sql: str,
         auto_begin: bool = True,
         bindings: Optional[Any] = None,
-        abridge_sql_log: bool = False,
+        abridge_sql_log: bool = False
     ) -> Tuple[Connection, Any]:
         connection = self.get_thread_connection()
         if auto_begin and connection.transaction_open is False:
             self.begin()
-
-        logger.debug('Using {} connection "{}".'.format(self.TYPE, connection.name))
+        fire_event(ConnectionUsed(conn_type=self.TYPE, conn_name=connection.name))
 
         with self.exception_handler(sql):
             if abridge_sql_log:
-                log_sql = "{}...".format(sql[:512])
+                log_sql = '{}...'.format(sql[:512])
             else:
                 log_sql = sql
 
-            logger.debug(
-                "On {connection_name}: {sql}",
-                connection_name=connection.name,
-                sql=log_sql,
-            )
+            fire_event(SQLQuery(conn_name=connection.name, sql=log_sql))
             pre = time.time()
 
             cursor = connection.handle.cursor()
             cursor.execute(sql, bindings)
-            logger.debug(
-                "SQL status: {status} in {elapsed:0.2f} seconds",
-                status=self.get_response(cursor),
-                elapsed=(time.time() - pre),
+
+            fire_event(
+                SQLQueryStatus(
+                    status=str(self.get_response(cursor)),
+                    elapsed=round((time.time() - pre), 2)
+                )
             )
 
             return connection, cursor
@@ -88,14 +86,23 @@ class SQLConnectionManager(BaseConnectionManager):
     def get_response(cls, cursor: Any) -> Union[AdapterResponse, str]:
         """Get the status of the cursor."""
         raise dbt.exceptions.NotImplementedException(
-            "`get_response` is not implemented for this adapter!"
+            '`get_response` is not implemented for this adapter!'
         )
 
     @classmethod
     def process_results(
-        cls, column_names: Iterable[str], rows: Iterable[Any]
+        cls,
+        column_names: Iterable[str],
+        rows: Iterable[Any]
     ) -> List[Dict[str, Any]]:
-
+        unique_col_names = dict()
+        for idx in range(len(column_names)):
+            col_name = column_names[idx]
+            if col_name in unique_col_names:
+                unique_col_names[col_name] += 1
+                column_names[idx] = f'{col_name}_{unique_col_names[col_name]}'
+            else:
+                unique_col_names[column_names[idx]] = 1
         return [dict(zip(column_names, row)) for row in rows]
 
     @classmethod
@@ -108,7 +115,10 @@ class SQLConnectionManager(BaseConnectionManager):
             rows = cursor.fetchall()
             data = cls.process_results(column_names, rows)
 
-        return dbt.clients.agate_helper.table_from_data_flat(data, column_names)
+        return dbt.clients.agate_helper.table_from_data_flat(
+            data,
+            column_names
+        )
 
     def execute(
         self, sql: str, auto_begin: bool = False, fetch: bool = False
@@ -123,25 +133,17 @@ class SQLConnectionManager(BaseConnectionManager):
         return response, table
 
     def add_begin_query(self):
-        return self.add_query("BEGIN", auto_begin=False)
+        return self.add_query('BEGIN', auto_begin=False)
 
     def add_commit_query(self):
-        return self.add_query("COMMIT", auto_begin=False)
+        return self.add_query('COMMIT', auto_begin=False)
 
     def begin(self):
         connection = self.get_thread_connection()
-
-        if flags.STRICT_MODE:
-            if not isinstance(connection, Connection):
-                raise dbt.exceptions.CompilerException(
-                    f"In begin, got {connection} - not a Connection!"
-                )
-
         if connection.transaction_open is True:
             raise dbt.exceptions.InternalException(
                 'Tried to begin a new transaction on connection "{}", but '
-                "it already had one open!".format(connection.name)
-            )
+                'it already had one open!'.format(connection.name))
 
         self.add_begin_query()
 
@@ -150,19 +152,12 @@ class SQLConnectionManager(BaseConnectionManager):
 
     def commit(self):
         connection = self.get_thread_connection()
-        if flags.STRICT_MODE:
-            if not isinstance(connection, Connection):
-                raise dbt.exceptions.CompilerException(
-                    f"In commit, got {connection} - not a Connection!"
-                )
-
         if connection.transaction_open is False:
             raise dbt.exceptions.InternalException(
                 'Tried to commit transaction on connection "{}", but '
-                "it does not have one open!".format(connection.name)
-            )
+                'it does not have one open!'.format(connection.name))
 
-        logger.debug("On {}: COMMIT".format(connection.name))
+        fire_event(SQLCommit(conn_name=connection.name))
         self.add_commit_query()
 
         connection.transaction_open = False

core/dbt/adapters/sql/impl.py

@@ -5,21 +5,24 @@ import dbt.clients.agate_helper
 from dbt.contracts.connection import Connection
 import dbt.exceptions
 from dbt.adapters.base import BaseAdapter, available
+from dbt.adapters.cache import _make_key
 from dbt.adapters.sql import SQLConnectionManager
-from dbt.logger import GLOBAL_LOGGER as logger
+from dbt.events.functions import fire_event
+from dbt.events.types import ColTypeChange, SchemaCreation, SchemaDrop
+
 
 from dbt.adapters.base.relation import BaseRelation
 
-LIST_RELATIONS_MACRO_NAME = "list_relations_without_caching"
-GET_COLUMNS_IN_RELATION_MACRO_NAME = "get_columns_in_relation"
-LIST_SCHEMAS_MACRO_NAME = "list_schemas"
-CHECK_SCHEMA_EXISTS_MACRO_NAME = "check_schema_exists"
-CREATE_SCHEMA_MACRO_NAME = "create_schema"
-DROP_SCHEMA_MACRO_NAME = "drop_schema"
-RENAME_RELATION_MACRO_NAME = "rename_relation"
-TRUNCATE_RELATION_MACRO_NAME = "truncate_relation"
-DROP_RELATION_MACRO_NAME = "drop_relation"
-ALTER_COLUMN_TYPE_MACRO_NAME = "alter_column_type"
+LIST_RELATIONS_MACRO_NAME = 'list_relations_without_caching'
+GET_COLUMNS_IN_RELATION_MACRO_NAME = 'get_columns_in_relation'
+LIST_SCHEMAS_MACRO_NAME = 'list_schemas'
+CHECK_SCHEMA_EXISTS_MACRO_NAME = 'check_schema_exists'
+CREATE_SCHEMA_MACRO_NAME = 'create_schema'
+DROP_SCHEMA_MACRO_NAME = 'drop_schema'
+RENAME_RELATION_MACRO_NAME = 'rename_relation'
+TRUNCATE_RELATION_MACRO_NAME = 'truncate_relation'
+DROP_RELATION_MACRO_NAME = 'drop_relation'
+ALTER_COLUMN_TYPE_MACRO_NAME = 'alter_column_type'
 
 
 class SQLAdapter(BaseAdapter):
@@ -60,23 +63,30 @@ class SQLAdapter(BaseAdapter):
         :param abridge_sql_log: If set, limit the raw sql logged to 512
             characters
         """
-        return self.connections.add_query(sql, auto_begin, bindings, abridge_sql_log)
+        return self.connections.add_query(sql, auto_begin, bindings,
+                                          abridge_sql_log)
 
     @classmethod
     def convert_text_type(cls, agate_table: agate.Table, col_idx: int) -> str:
         return "text"
 
     @classmethod
-    def convert_number_type(cls, agate_table: agate.Table, col_idx: int) -> str:
-        decimals = agate_table.aggregate(agate.MaxPrecision(col_idx))  # type: ignore
+    def convert_number_type(
+        cls, agate_table: agate.Table, col_idx: int
+    ) -> str:
+        decimals = agate_table.aggregate(agate.MaxPrecision(col_idx))
         return "float8" if decimals else "integer"
 
     @classmethod
-    def convert_boolean_type(cls, agate_table: agate.Table, col_idx: int) -> str:
+    def convert_boolean_type(
+            cls, agate_table: agate.Table, col_idx: int
+    ) -> str:
         return "boolean"
 
     @classmethod
-    def convert_datetime_type(cls, agate_table: agate.Table, col_idx: int) -> str:
+    def convert_datetime_type(
+            cls, agate_table: agate.Table, col_idx: int
+    ) -> str:
         return "timestamp without time zone"
 
     @classmethod
@@ -92,28 +102,36 @@ class SQLAdapter(BaseAdapter):
         return True
 
     def expand_column_types(self, goal, current):
-        reference_columns = {c.name: c for c in self.get_columns_in_relation(goal)}
+        reference_columns = {
+            c.name: c for c in
+            self.get_columns_in_relation(goal)
+        }
 
-        target_columns = {c.name: c for c in self.get_columns_in_relation(current)}
+        target_columns = {
+            c.name: c for c
+            in self.get_columns_in_relation(current)
+        }
 
         for column_name, reference_column in reference_columns.items():
             target_column = target_columns.get(column_name)
 
-            if target_column is not None and target_column.can_expand_to(
-                reference_column
-            ):
+            if target_column is not None and \
+               target_column.can_expand_to(reference_column):
                 col_string_size = reference_column.string_size()
                 new_type = self.Column.string_type(col_string_size)
-                logger.debug(
-                    "Changing col type from {} to {} in table {}",
-                    target_column.data_type,
-                    new_type,
-                    current,
+                fire_event(
+                    ColTypeChange(
+                        orig_type=target_column.data_type,
+                        new_type=new_type,
+                        table=_make_key(current),
+                    )
                 )
 
                 self.alter_column_type(current, column_name, new_type)
 
-    def alter_column_type(self, relation, column_name, new_column_type) -> None:
+    def alter_column_type(
+            self, relation, column_name, new_column_type
+    ) -> None:
         """
         1. Create a new column (w/ temp name and correct type)
         2. Copy data over to it
@@ -121,40 +139,53 @@ class SQLAdapter(BaseAdapter):
         4. Rename the new column to existing column
         """
         kwargs = {
-            "relation": relation,
-            "column_name": column_name,
-            "new_column_type": new_column_type,
+            'relation': relation,
+            'column_name': column_name,
+            'new_column_type': new_column_type,
         }
-        self.execute_macro(ALTER_COLUMN_TYPE_MACRO_NAME, kwargs=kwargs)
+        self.execute_macro(
+            ALTER_COLUMN_TYPE_MACRO_NAME,
+            kwargs=kwargs
+        )
 
     def drop_relation(self, relation):
         if relation.type is None:
             dbt.exceptions.raise_compiler_error(
-                "Tried to drop relation {}, but its type is null.".format(relation)
-            )
+                'Tried to drop relation {}, but its type is null.'
+                .format(relation))
 
         self.cache_dropped(relation)
-        self.execute_macro(DROP_RELATION_MACRO_NAME, kwargs={"relation": relation})
+        self.execute_macro(
+            DROP_RELATION_MACRO_NAME,
+            kwargs={'relation': relation}
+        )
 
     def truncate_relation(self, relation):
-        self.execute_macro(TRUNCATE_RELATION_MACRO_NAME, kwargs={"relation": relation})
+        self.execute_macro(
+            TRUNCATE_RELATION_MACRO_NAME,
+            kwargs={'relation': relation}
+        )
 
     def rename_relation(self, from_relation, to_relation):
         self.cache_renamed(from_relation, to_relation)
 
-        kwargs = {"from_relation": from_relation, "to_relation": to_relation}
-        self.execute_macro(RENAME_RELATION_MACRO_NAME, kwargs=kwargs)
+        kwargs = {'from_relation': from_relation, 'to_relation': to_relation}
+        self.execute_macro(
+            RENAME_RELATION_MACRO_NAME,
+            kwargs=kwargs
+        )
 
     def get_columns_in_relation(self, relation):
         return self.execute_macro(
-            GET_COLUMNS_IN_RELATION_MACRO_NAME, kwargs={"relation": relation}
+            GET_COLUMNS_IN_RELATION_MACRO_NAME,
+            kwargs={'relation': relation}
         )
 
     def create_schema(self, relation: BaseRelation) -> None:
         relation = relation.without_identifier()
-        logger.debug('Creating schema "{}"', relation)
+        fire_event(SchemaCreation(relation=_make_key(relation)))
         kwargs = {
-            "relation": relation,
+            'relation': relation,
         }
         self.execute_macro(CREATE_SCHEMA_MACRO_NAME, kwargs=kwargs)
         self.commit_if_has_connection()
@@ -163,37 +194,41 @@ class SQLAdapter(BaseAdapter):
 
     def drop_schema(self, relation: BaseRelation) -> None:
         relation = relation.without_identifier()
-        logger.debug('Dropping schema "{}".', relation)
+        fire_event(SchemaDrop(relation=_make_key(relation)))
         kwargs = {
-            "relation": relation,
+            'relation': relation,
         }
         self.execute_macro(DROP_SCHEMA_MACRO_NAME, kwargs=kwargs)
         # we can update the cache here
         self.cache.drop_schema(relation.database, relation.schema)
 
     def list_relations_without_caching(
-        self,
-        schema_relation: BaseRelation,
+        self, schema_relation: BaseRelation,
     ) -> List[BaseRelation]:
-        kwargs = {"schema_relation": schema_relation}
-        results = self.execute_macro(LIST_RELATIONS_MACRO_NAME, kwargs=kwargs)
+        kwargs = {'schema_relation': schema_relation}
+        results = self.execute_macro(
+            LIST_RELATIONS_MACRO_NAME,
+            kwargs=kwargs
+        )
 
         relations = []
-        quote_policy = {"database": True, "schema": True, "identifier": True}
+        quote_policy = {
+            'database': True,
+            'schema': True,
+            'identifier': True
+        }
         for _database, name, _schema, _type in results:
             try:
                 _type = self.Relation.get_relation_type(_type)
             except ValueError:
                 _type = self.Relation.External
-            relations.append(
-                self.Relation.create(
-                    database=_database,
-                    schema=_schema,
-                    identifier=name,
-                    quote_policy=quote_policy,
-                    type=_type,
-                )
-            )
+            relations.append(self.Relation.create(
+                database=_database,
+                schema=_schema,
+                identifier=name,
+                quote_policy=quote_policy,
+                type=_type
+            ))
         return relations
 
     def quote(self, identifier):
@@ -201,7 +236,8 @@ class SQLAdapter(BaseAdapter):
 
     def list_schemas(self, database: str) -> List[str]:
         results = self.execute_macro(
-            LIST_SCHEMAS_MACRO_NAME, kwargs={"database": database}
+            LIST_SCHEMAS_MACRO_NAME,
+            kwargs={'database': database}
         )
 
         return [row[0] for row in results]
@@ -210,10 +246,13 @@ class SQLAdapter(BaseAdapter):
         information_schema = self.Relation.create(
             database=database,
             schema=schema,
-            identifier="INFORMATION_SCHEMA",
-            quote_policy=self.config.quoting,
+            identifier='INFORMATION_SCHEMA',
+            quote_policy=self.config.quoting
         ).information_schema()
 
-        kwargs = {"information_schema": information_schema, "schema": schema}
-        results = self.execute_macro(CHECK_SCHEMA_EXISTS_MACRO_NAME, kwargs=kwargs)
+        kwargs = {'information_schema': information_schema, 'schema': schema}
+        results = self.execute_macro(
+            CHECK_SCHEMA_EXISTS_MACRO_NAME,
+            kwargs=kwargs
+        )
         return results[0][0] > 0

core/dbt/clients/README.md

@@ -0,0 +1 @@
+# Clients README

core/dbt/clients/_jinja_blocks.py

@@ -10,89 +10,79 @@ def regex(pat):
 
 class BlockData:
     """raw plaintext data from the top level of the file."""
-
     def __init__(self, contents):
-        self.block_type_name = "__dbt__data"
+        self.block_type_name = '__dbt__data'
         self.contents = contents
         self.full_block = contents
 
 
 class BlockTag:
-    def __init__(
-        self, block_type_name, block_name, contents=None, full_block=None, **kw
-    ):
+    def __init__(self, block_type_name, block_name, contents=None,
+                 full_block=None, **kw):
         self.block_type_name = block_type_name
         self.block_name = block_name
         self.contents = contents
         self.full_block = full_block
 
     def __str__(self):
-        return "BlockTag({!r}, {!r})".format(self.block_type_name, self.block_name)
+        return 'BlockTag({!r}, {!r})'.format(self.block_type_name,
+                                             self.block_name)
 
     def __repr__(self):
         return str(self)
 
     @property
     def end_block_type_name(self):
-        return "end{}".format(self.block_type_name)
+        return 'end{}'.format(self.block_type_name)
 
     def end_pat(self):
         # we don't want to use string formatting here because jinja uses most
         # of the string formatting operators in its syntax...
-        pattern = "".join(
-            (
-                r"(?P<endblock>((?:\s*\{\%\-|\{\%)\s*",
-                self.end_block_type_name,
-                r"\s*(?:\-\%\}\s*|\%\})))",
-            )
-        )
+        pattern = ''.join((
+            r'(?P<endblock>((?:\s*\{\%\-|\{\%)\s*',
+            self.end_block_type_name,
+            r'\s*(?:\-\%\}\s*|\%\})))',
+        ))
         return regex(pattern)
 
 
-Tag = namedtuple("Tag", "block_type_name block_name start end")
+Tag = namedtuple('Tag', 'block_type_name block_name start end')
 
 
-_NAME_PATTERN = r"[A-Za-z_][A-Za-z_0-9]*"
+_NAME_PATTERN = r'[A-Za-z_][A-Za-z_0-9]*'
 
-COMMENT_START_PATTERN = regex(r"(?:(?P<comment_start>(\s*\{\#)))")
-COMMENT_END_PATTERN = regex(r"(.*?)(\s*\#\})")
+COMMENT_START_PATTERN = regex(r'(?:(?P<comment_start>(\s*\{\#)))')
+COMMENT_END_PATTERN = regex(r'(.*?)(\s*\#\})')
 RAW_START_PATTERN = regex(
-    r"(?:\s*\{\%\-|\{\%)\s*(?P<raw_start>(raw))\s*(?:\-\%\}\s*|\%\})"
+    r'(?:\s*\{\%\-|\{\%)\s*(?P<raw_start>(raw))\s*(?:\-\%\}\s*|\%\})'
 )
-EXPR_START_PATTERN = regex(r"(?P<expr_start>(\{\{\s*))")
-EXPR_END_PATTERN = regex(r"(?P<expr_end>(\s*\}\}))")
+EXPR_START_PATTERN = regex(r'(?P<expr_start>(\{\{\s*))')
+EXPR_END_PATTERN = regex(r'(?P<expr_end>(\s*\}\}))')
 
-BLOCK_START_PATTERN = regex(
-    "".join(
-        (
-            r"(?:\s*\{\%\-|\{\%)\s*",
-            r"(?P<block_type_name>({}))".format(_NAME_PATTERN),
-            # some blocks have a 'block name'.
-            r"(?:\s+(?P<block_name>({})))?".format(_NAME_PATTERN),
-        )
-    )
-)
+BLOCK_START_PATTERN = regex(''.join((
+    r'(?:\s*\{\%\-|\{\%)\s*',
+    r'(?P<block_type_name>({}))'.format(_NAME_PATTERN),
+    # some blocks have a 'block name'.
+    r'(?:\s+(?P<block_name>({})))?'.format(_NAME_PATTERN),
+)))
 
 
-RAW_BLOCK_PATTERN = regex(
-    "".join(
-        (
-            r"(?:\s*\{\%\-|\{\%)\s*raw\s*(?:\-\%\}\s*|\%\})",
-            r"(?:.*?)",
-            r"(?:\s*\{\%\-|\{\%)\s*endraw\s*(?:\-\%\}\s*|\%\})",
-        )
-    )
-)
+RAW_BLOCK_PATTERN = regex(''.join((
+    r'(?:\s*\{\%\-|\{\%)\s*raw\s*(?:\-\%\}\s*|\%\})',
+    r'(?:.*?)',
+    r'(?:\s*\{\%\-|\{\%)\s*endraw\s*(?:\-\%\}\s*|\%\})',
+)))
 
-TAG_CLOSE_PATTERN = regex(r"(?:(?P<tag_close>(\-\%\}\s*|\%\})))")
+TAG_CLOSE_PATTERN = regex(r'(?:(?P<tag_close>(\-\%\}\s*|\%\})))')
 
 # stolen from jinja's lexer. Note that we've consumed all prefix whitespace by
 # the time we want to use this.
 STRING_PATTERN = regex(
-    r"(?P<string>('([^'\\]*(?:\\.[^'\\]*)*)'|" r'"([^"\\]*(?:\\.[^"\\]*)*)"))'
+    r"(?P<string>('([^'\\]*(?:\\.[^'\\]*)*)'|"
+    r'"([^"\\]*(?:\\.[^"\\]*)*)"))'
 )
 
-QUOTE_START_PATTERN = regex(r"""(?P<quote>(['"]))""")
+QUOTE_START_PATTERN = regex(r'''(?P<quote>(['"]))''')
 
 
 class TagIterator:
@@ -109,10 +99,10 @@ class TagIterator:
         end_val: int = self.pos if end is None else end
         data = self.data[:end_val]
         # if not found, rfind returns -1, and -1+1=0, which is perfect!
-        last_line_start = data.rfind("\n") + 1
+        last_line_start = data.rfind('\n') + 1
         # it's easy to forget this, but line numbers are 1-indexed
-        line_number = data.count("\n") + 1
-        return f"{line_number}:{end_val - last_line_start}"
+        line_number = data.count('\n') + 1
+        return f'{line_number}:{end_val - last_line_start}'
 
     def advance(self, new_position):
         self.pos = new_position
@@ -130,7 +120,7 @@ class TagIterator:
         matches = []
         for pattern in patterns:
             # default to 'search', but sometimes we want to 'match'.
-            if kwargs.get("method", "search") == "search":
+            if kwargs.get('method', 'search') == 'search':
                 match = self._search(pattern)
             else:
                 match = self._match(pattern)
@@ -146,7 +136,7 @@ class TagIterator:
         match = self._first_match(*patterns, **kwargs)
         if match is None:
             msg = 'unexpected EOF, expected {}, got "{}"'.format(
-                expected_name, self.data[self.pos :]
+                expected_name, self.data[self.pos:]
             )
             dbt.exceptions.raise_compiler_error(msg)
         return match
@@ -166,20 +156,22 @@ class TagIterator:
         """
         self.advance(match.end())
         while True:
-            match = self._expect_match("}}", EXPR_END_PATTERN, QUOTE_START_PATTERN)
-            if match.groupdict().get("expr_end") is not None:
+            match = self._expect_match('}}',
+                                       EXPR_END_PATTERN,
+                                       QUOTE_START_PATTERN)
+            if match.groupdict().get('expr_end') is not None:
                 break
             else:
                 # it's a quote. we haven't advanced for this match yet, so
                 # just slurp up the whole string, no need to rewind.
-                match = self._expect_match("string", STRING_PATTERN)
+                match = self._expect_match('string', STRING_PATTERN)
                 self.advance(match.end())
 
         self.advance(match.end())
 
     def handle_comment(self, match):
         self.advance(match.end())
-        match = self._expect_match("#}", COMMENT_END_PATTERN)
+        match = self._expect_match('#}', COMMENT_END_PATTERN)
         self.advance(match.end())
 
     def _expect_block_close(self):
@@ -196,19 +188,22 @@ class TagIterator:
         """
         while True:
             end_match = self._expect_match(
-                'tag close ("%}")', QUOTE_START_PATTERN, TAG_CLOSE_PATTERN
+                'tag close ("%}")',
+                QUOTE_START_PATTERN,
+                TAG_CLOSE_PATTERN
             )
             self.advance(end_match.end())
-            if end_match.groupdict().get("tag_close") is not None:
+            if end_match.groupdict().get('tag_close') is not None:
                 return
             # must be a string. Rewind to its start and advance past it.
             self.rewind()
-            string_match = self._expect_match("string", STRING_PATTERN)
+            string_match = self._expect_match('string', STRING_PATTERN)
             self.advance(string_match.end())
 
     def handle_raw(self):
         # raw blocks are super special, they are a single complete regex
-        match = self._expect_match("{% raw %}...{% endraw %}", RAW_BLOCK_PATTERN)
+        match = self._expect_match('{% raw %}...{% endraw %}',
+                                   RAW_BLOCK_PATTERN)
         self.advance(match.end())
         return match.end()
 
@@ -225,12 +220,13 @@ class TagIterator:
         """
         groups = match.groupdict()
         # always a value
-        block_type_name = groups["block_type_name"]
+        block_type_name = groups['block_type_name']
         # might be None
-        block_name = groups.get("block_name")
+        block_name = groups.get('block_name')
         start_pos = self.pos
-        if block_type_name == "raw":
-            match = self._expect_match("{% raw %}...{% endraw %}", RAW_BLOCK_PATTERN)
+        if block_type_name == 'raw':
+            match = self._expect_match('{% raw %}...{% endraw %}',
+                                       RAW_BLOCK_PATTERN)
             self.advance(match.end())
         else:
             self.advance(match.end())
@@ -239,13 +235,15 @@ class TagIterator:
             block_type_name=block_type_name,
             block_name=block_name,
             start=start_pos,
-            end=self.pos,
+            end=self.pos
         )
 
     def find_tags(self):
         while True:
             match = self._first_match(
-                BLOCK_START_PATTERN, COMMENT_START_PATTERN, EXPR_START_PATTERN
+                BLOCK_START_PATTERN,
+                COMMENT_START_PATTERN,
+                EXPR_START_PATTERN
             )
             if match is None:
                 break
@@ -254,9 +252,9 @@ class TagIterator:
             # start = self.pos
 
             groups = match.groupdict()
-            comment_start = groups.get("comment_start")
-            expr_start = groups.get("expr_start")
-            block_type_name = groups.get("block_type_name")
+            comment_start = groups.get('comment_start')
+            expr_start = groups.get('expr_start')
+            block_type_name = groups.get('block_type_name')
 
             if comment_start is not None:
                 self.handle_comment(match)
@@ -266,8 +264,8 @@ class TagIterator:
                 yield self.handle_tag(match)
             else:
                 raise dbt.exceptions.InternalException(
-                    "Invalid regex match in next_block, expected block start, "
-                    "expr start, or comment start"
+                    'Invalid regex match in next_block, expected block start, '
+                    'expr start, or comment start'
                 )
 
     def __iter__(self):
@@ -275,18 +273,21 @@ class TagIterator:
 
 
 duplicate_tags = (
-    "Got nested tags: {outer.block_type_name} (started at {outer.start}) did "
-    "not have a matching {{% end{outer.block_type_name} %}} before a "
-    "subsequent {inner.block_type_name} was found (started at {inner.start})"
+    'Got nested tags: {outer.block_type_name} (started at {outer.start}) did '
+    'not have a matching {{% end{outer.block_type_name} %}} before a '
+    'subsequent {inner.block_type_name} was found (started at {inner.start})'
 )
 
 
 _CONTROL_FLOW_TAGS = {
-    "if": "endif",
-    "for": "endfor",
+    'if': 'endif',
+    'for': 'endfor',
 }
 
-_CONTROL_FLOW_END_TAGS = {v: k for k, v in _CONTROL_FLOW_TAGS.items()}
+_CONTROL_FLOW_END_TAGS = {
+    v: k
+    for k, v in _CONTROL_FLOW_TAGS.items()
+}
 
 
 class BlockIterator:
@@ -309,15 +310,15 @@ class BlockIterator:
 
     def is_current_end(self, tag):
         return (
-            tag.block_type_name.startswith("end")
-            and self.current is not None
-            and tag.block_type_name[3:] == self.current.block_type_name
+            tag.block_type_name.startswith('end') and
+            self.current is not None and
+            tag.block_type_name[3:] == self.current.block_type_name
         )
 
     def find_blocks(self, allowed_blocks=None, collect_raw_data=True):
         """Find all top-level blocks in the data."""
         if allowed_blocks is None:
-            allowed_blocks = {"snapshot", "macro", "materialization", "docs"}
+            allowed_blocks = {'snapshot', 'macro', 'materialization', 'docs'}
 
         for tag in self.tag_parser.find_tags():
             if tag.block_type_name in _CONTROL_FLOW_TAGS:
@@ -328,43 +329,37 @@ class BlockIterator:
                     found = self.stack.pop()
                 else:
                     expected = _CONTROL_FLOW_END_TAGS[tag.block_type_name]
-                    dbt.exceptions.raise_compiler_error(
-                        (
-                            "Got an unexpected control flow end tag, got {} but "
-                            "never saw a preceeding {} (@ {})"
-                        ).format(
-                            tag.block_type_name,
-                            expected,
-                            self.tag_parser.linepos(tag.start),
-                        )
-                    )
+                    dbt.exceptions.raise_compiler_error((
+                        'Got an unexpected control flow end tag, got {} but '
+                        'never saw a preceeding {} (@ {})'
+                    ).format(
+                        tag.block_type_name,
+                        expected,
+                        self.tag_parser.linepos(tag.start)
+                    ))
                 expected = _CONTROL_FLOW_TAGS[found]
                 if expected != tag.block_type_name:
-                    dbt.exceptions.raise_compiler_error(
-                        (
-                            "Got an unexpected control flow end tag, got {} but "
-                            "expected {} next (@ {})"
-                        ).format(
-                            tag.block_type_name,
-                            expected,
-                            self.tag_parser.linepos(tag.start),
-                        )
-                    )
+                    dbt.exceptions.raise_compiler_error((
+                        'Got an unexpected control flow end tag, got {} but '
+                        'expected {} next (@ {})'
+                    ).format(
+                        tag.block_type_name,
+                        expected,
+                        self.tag_parser.linepos(tag.start)
+                    ))
 
             if tag.block_type_name in allowed_blocks:
                 if self.stack:
-                    dbt.exceptions.raise_compiler_error(
-                        (
-                            "Got a block definition inside control flow at {}. "
-                            "All dbt block definitions must be at the top level"
-                        ).format(self.tag_parser.linepos(tag.start))
-                    )
+                    dbt.exceptions.raise_compiler_error((
+                        'Got a block definition inside control flow at {}. '
+                        'All dbt block definitions must be at the top level'
+                    ).format(self.tag_parser.linepos(tag.start)))
                 if self.current is not None:
                     dbt.exceptions.raise_compiler_error(
                         duplicate_tags.format(outer=self.current, inner=tag)
                     )
                 if collect_raw_data:
-                    raw_data = self.data[self.last_position : tag.start]
+                    raw_data = self.data[self.last_position:tag.start]
                     self.last_position = tag.start
                     if raw_data:
                         yield BlockData(raw_data)
@@ -376,28 +371,23 @@ class BlockIterator:
                 yield BlockTag(
                     block_type_name=self.current.block_type_name,
                     block_name=self.current.block_name,
-                    contents=self.data[self.current.end : tag.start],
-                    full_block=self.data[self.current.start : tag.end],
+                    contents=self.data[self.current.end:tag.start],
+                    full_block=self.data[self.current.start:tag.end]
                 )
                 self.current = None
 
         if self.current:
-            linecount = self.data[: self.current.end].count("\n") + 1
-            dbt.exceptions.raise_compiler_error(
-                (
-                    "Reached EOF without finding a close tag for "
-                    "{} (searched from line {})"
-                ).format(self.current.block_type_name, linecount)
-            )
+            linecount = self.data[:self.current.end].count('\n') + 1
+            dbt.exceptions.raise_compiler_error((
+                'Reached EOF without finding a close tag for '
+                '{} (searched from line {})'
+            ).format(self.current.block_type_name, linecount))
 
         if collect_raw_data:
-            raw_data = self.data[self.last_position :]
+            raw_data = self.data[self.last_position:]
             if raw_data:
                 yield BlockData(raw_data)
 
     def lex_for_blocks(self, allowed_blocks=None, collect_raw_data=True):
-        return list(
-            self.find_blocks(
-                allowed_blocks=allowed_blocks, collect_raw_data=collect_raw_data
-            )
-        )
+        return list(self.find_blocks(allowed_blocks=allowed_blocks,
+                                     collect_raw_data=collect_raw_data))

core/dbt/clients/agate_helper.py

@@ -10,7 +10,19 @@ from typing import Iterable, List, Dict, Union, Optional, Any
 from dbt.exceptions import RuntimeException
 
 
-BOM = BOM_UTF8.decode("utf-8")  # '\ufeff'
+BOM = BOM_UTF8.decode('utf-8')  # '\ufeff'
+
+
+class Number(agate.data_types.Number):
+    # undo the change in https://github.com/wireservice/agate/pull/733
+    # i.e. do not cast True and False to numeric 1 and 0
+    def cast(self, d):
+        if type(d) == bool:
+            raise agate.exceptions.CastError(
+                'Do not cast True to 1 or False to 0.'
+            )
+        else:
+            return super().cast(d)
 
 
 class ISODateTime(agate.data_types.DateTime):
@@ -30,23 +42,32 @@ class ISODateTime(agate.data_types.DateTime):
         except:  # noqa
             pass
 
-        raise agate.exceptions.CastError('Can not parse value "%s" as datetime.' % d)
+        raise agate.exceptions.CastError(
+            'Can not parse value "%s" as datetime.' % d
+        )
 
 
-def build_type_tester(text_columns: Iterable[str]) -> agate.TypeTester:
+def build_type_tester(
+    text_columns: Iterable[str],
+    string_null_values: Optional[Iterable[str]] = ('null', '')
+) -> agate.TypeTester:
+
     types = [
-        agate.data_types.Number(null_values=("null", "")),
-        agate.data_types.Date(null_values=("null", ""), date_format="%Y-%m-%d"),
-        agate.data_types.DateTime(
-            null_values=("null", ""), datetime_format="%Y-%m-%d %H:%M:%S"
-        ),
-        ISODateTime(null_values=("null", "")),
-        agate.data_types.Boolean(
-            true_values=("true",), false_values=("false",), null_values=("null", "")
-        ),
-        agate.data_types.Text(null_values=("null", "")),
+        Number(null_values=('null', '')),
+        agate.data_types.Date(null_values=('null', ''),
+                              date_format='%Y-%m-%d'),
+        agate.data_types.DateTime(null_values=('null', ''),
+                                  datetime_format='%Y-%m-%d %H:%M:%S'),
+        ISODateTime(null_values=('null', '')),
+        agate.data_types.Boolean(true_values=('true',),
+                                 false_values=('false',),
+                                 null_values=('null', '')),
+        agate.data_types.Text(null_values=string_null_values)
     ]
-    force = {k: agate.data_types.Text(null_values=("null", "")) for k in text_columns}
+    force = {
+        k: agate.data_types.Text(null_values=string_null_values)
+        for k in text_columns
+    }
     return agate.TypeTester(force=force, types=types)
 
 
@@ -61,7 +82,13 @@ def table_from_rows(
     if text_only_columns is None:
         column_types = DEFAULT_TYPE_TESTER
     else:
-        column_types = build_type_tester(text_only_columns)
+        # If text_only_columns are present, prevent coercing empty string or
+        # literal 'null' strings to a None representation.
+        column_types = build_type_tester(
+            text_only_columns,
+            string_null_values=()
+        )
+
     return agate.Table(rows, column_names, column_types=column_types)
 
 
@@ -81,19 +108,34 @@ def table_from_data(data, column_names: Iterable[str]) -> agate.Table:
 
 
 def table_from_data_flat(data, column_names: Iterable[str]) -> agate.Table:
-    "Convert list of dictionaries into an Agate table"
+    """
+    Convert a list of dictionaries into an Agate table. This method does not
+    coerce string values into more specific types (eg. '005' will not be
+    coerced to '5'). Additionally, this method does not coerce values to
+    None (eg. '' or 'null' will retain their string literal representations).
+    """
 
     rows = []
+    text_only_columns = set()
     for _row in data:
         row = []
-        for value in list(_row.values()):
+        for col_name in column_names:
+            value = _row[col_name]
             if isinstance(value, (dict, list, tuple)):
-                row.append(json.dumps(value, cls=dbt.utils.JSONEncoder))
-            else:
-                row.append(value)
+                # Represent container types as json strings
+                value = json.dumps(value, cls=dbt.utils.JSONEncoder)
+                text_only_columns.add(col_name)
+            elif isinstance(value, str):
+                text_only_columns.add(col_name)
+            row.append(value)
+
         rows.append(row)
 
-    return table_from_rows(rows=rows, column_names=column_names)
+    return table_from_rows(
+        rows=rows,
+        column_names=column_names,
+        text_only_columns=text_only_columns
+    )
 
 
 def empty_table():
@@ -110,7 +152,7 @@ def as_matrix(table):
 
 def from_csv(abspath, text_columns):
     type_tester = build_type_tester(text_columns=text_columns)
-    with open(abspath, encoding="utf-8") as fp:
+    with open(abspath, encoding='utf-8') as fp:
         if fp.read(1) != BOM:
             fp.seek(0)
         return agate.Table.from_csv(fp, column_types=type_tester)
@@ -142,8 +184,8 @@ class ColumnTypeBuilder(Dict[str, NullableAgateType]):
         elif not isinstance(value, type(existing_type)):
             # actual type mismatch!
             raise RuntimeException(
-                f"Tables contain columns with the same names ({key}), "
-                f"but different types ({value} vs {existing_type})"
+                f'Tables contain columns with the same names ({key}), '
+                f'but different types ({value} vs {existing_type})'
             )
 
     def finalize(self) -> Dict[str, agate.data_types.DataType]:
@@ -158,7 +200,7 @@ class ColumnTypeBuilder(Dict[str, NullableAgateType]):
 
 
 def _merged_column_types(
-    tables: List[agate.Table],
+    tables: List[agate.Table]
 ) -> Dict[str, agate.data_types.DataType]:
     # this is a lot like agate.Table.merge, but with handling for all-null
     # rows being "any type".
@@ -185,7 +227,10 @@ def merge_tables(tables: List[agate.Table]) -> agate.Table:
 
     rows: List[agate.Row] = []
     for table in tables:
-        if table.column_names == column_names and table.column_types == column_types:
+        if (
+            table.column_names == column_names and
+            table.column_types == column_types
+        ):
             rows.extend(table.rows)
         else:
             for row in table.rows:

core/dbt/clients/gcloud.py

@@ -1,26 +0,0 @@
-from dbt.logger import GLOBAL_LOGGER as logger
-import dbt.exceptions
-from dbt.clients.system import run_cmd
-
-NOT_INSTALLED_MSG = """
-dbt requires the gcloud SDK to be installed to authenticate with BigQuery.
-Please download and install the SDK, or use a Service Account instead.
-
-https://cloud.google.com/sdk/
-"""
-
-
-def gcloud_installed():
-    try:
-        run_cmd(".", ["gcloud", "--version"])
-        return True
-    except OSError as e:
-        logger.debug(e)
-        return False
-
-
-def setup_default_credentials():
-    if gcloud_installed():
-        run_cmd(".", ["gcloud", "auth", "application-default", "login"])
-    else:
-        raise dbt.exceptions.RuntimeException(NOT_INSTALLED_MSG)

core/dbt/clients/git.py

@@ -2,107 +2,168 @@ import re
 import os.path
 
 from dbt.clients.system import run_cmd, rmdir
-from dbt.logger import GLOBAL_LOGGER as logger
-import dbt.exceptions
+from dbt.events.functions import fire_event
+from dbt.events.types import (
+    GitSparseCheckoutSubdirectory, GitProgressCheckoutRevision,
+    GitProgressUpdatingExistingDependency, GitProgressPullingNewDependency,
+    GitNothingToDo, GitProgressUpdatedCheckoutRange, GitProgressCheckedOutAt
+)
+from dbt.exceptions import (
+    CommandResultError, RuntimeException, bad_package_spec, raise_git_cloning_error,
+    raise_git_cloning_problem
+)
+from packaging import version
 
 
-def clone(repo, cwd, dirname=None, remove_git_dir=False, branch=None):
-    clone_cmd = ["git", "clone", "--depth", "1"]
+def _is_commit(revision: str) -> bool:
+    # match SHA-1 git commit
+    return bool(re.match(r"\b[0-9a-f]{40}\b", revision))
 
-    if branch is not None:
-        clone_cmd.extend(["--branch", branch])
+
+def _raise_git_cloning_error(repo, revision, error):
+    stderr = error.stderr.decode('utf-8').strip()
+    if 'usage: git' in stderr:
+        stderr = stderr.split('\nusage: git')[0]
+    if re.match("fatal: destination path '(.+)' already exists", stderr):
+        raise_git_cloning_error(error)
+
+    bad_package_spec(repo, revision, stderr)
+
+
+def clone(repo, cwd, dirname=None, remove_git_dir=False, revision=None, subdirectory=None):
+    has_revision = revision is not None
+    is_commit = _is_commit(revision or "")
+
+    clone_cmd = ['git', 'clone', '--depth', '1']
+    if subdirectory:
+        fire_event(GitSparseCheckoutSubdirectory(subdir=subdirectory))
+        out, _ = run_cmd(cwd, ['git', '--version'], env={'LC_ALL': 'C'})
+        git_version = version.parse(re.search(r"\d+\.\d+\.\d+", out.decode("utf-8")).group(0))
+        if not git_version >= version.parse("2.25.0"):
+            # 2.25.0 introduces --sparse
+            raise RuntimeError(
+                "Please update your git version to pull a dbt package "
+                "from a subdirectory: your version is {}, >= 2.25.0 needed".format(git_version)
+            )
+        clone_cmd.extend(['--filter=blob:none', '--sparse'])
+
+    if has_revision and not is_commit:
+        clone_cmd.extend(['--branch', revision])
 
     clone_cmd.append(repo)
 
     if dirname is not None:
         clone_cmd.append(dirname)
+    try:
+        result = run_cmd(cwd, clone_cmd, env={'LC_ALL': 'C'})
+    except CommandResultError as exc:
+        _raise_git_cloning_error(repo, revision, exc)
 
-    result = run_cmd(cwd, clone_cmd, env={"LC_ALL": "C"})
+    if subdirectory:
+        cwd_subdir = os.path.join(cwd, dirname or '')
+        clone_cmd_subdir = ['git', 'sparse-checkout', 'set', subdirectory]
+        try:
+            run_cmd(cwd_subdir, clone_cmd_subdir)
+        except CommandResultError as exc:
+            _raise_git_cloning_error(repo, revision, exc)
 
     if remove_git_dir:
-        rmdir(os.path.join(dirname, ".git"))
+        rmdir(os.path.join(dirname, '.git'))
 
     return result
 
 
 def list_tags(cwd):
-    out, err = run_cmd(cwd, ["git", "tag", "--list"], env={"LC_ALL": "C"})
-    tags = out.decode("utf-8").strip().split("\n")
+    out, err = run_cmd(cwd, ['git', 'tag', '--list'], env={'LC_ALL': 'C'})
+    tags = out.decode('utf-8').strip().split("\n")
     return tags
 
 
-def _checkout(cwd, repo, branch):
-    logger.debug("  Checking out branch {}.".format(branch))
+def _checkout(cwd, repo, revision):
+    fire_event(GitProgressCheckoutRevision(revision=revision))
 
-    run_cmd(cwd, ["git", "remote", "set-branches", "origin", branch])
-    run_cmd(cwd, ["git", "fetch", "--tags", "--depth", "1", "origin", branch])
+    fetch_cmd = ["git", "fetch", "origin", "--depth", "1"]
 
-    tags = list_tags(cwd)
-
-    # Prefer tags to branches if one exists
-    if branch in tags:
-        spec = "tags/{}".format(branch)
+    if _is_commit(revision):
+        run_cmd(cwd, fetch_cmd + [revision])
     else:
-        spec = "origin/{}".format(branch)
+        run_cmd(cwd, ['git', 'remote', 'set-branches', 'origin', revision])
+        run_cmd(cwd, fetch_cmd + ["--tags", revision])
 
-    out, err = run_cmd(cwd, ["git", "reset", "--hard", spec], env={"LC_ALL": "C"})
+    if _is_commit(revision):
+        spec = revision
+    # Prefer tags to branches if one exists
+    elif revision in list_tags(cwd):
+        spec = 'tags/{}'.format(revision)
+    else:
+        spec = 'origin/{}'.format(revision)
+
+    out, err = run_cmd(cwd, ['git', 'reset', '--hard', spec],
+                       env={'LC_ALL': 'C'})
     return out, err
 
 
-def checkout(cwd, repo, branch=None):
-    if branch is None:
-        branch = "HEAD"
+def checkout(cwd, repo, revision=None):
+    if revision is None:
+        revision = 'HEAD'
     try:
-        return _checkout(cwd, repo, branch)
-    except dbt.exceptions.CommandResultError as exc:
-        stderr = exc.stderr.decode("utf-8").strip()
-    dbt.exceptions.bad_package_spec(repo, branch, stderr)
+        return _checkout(cwd, repo, revision)
+    except CommandResultError as exc:
+        stderr = exc.stderr.decode('utf-8').strip()
+    bad_package_spec(repo, revision, stderr)
 
 
 def get_current_sha(cwd):
-    out, err = run_cmd(cwd, ["git", "rev-parse", "HEAD"], env={"LC_ALL": "C"})
+    out, err = run_cmd(cwd, ['git', 'rev-parse', 'HEAD'], env={'LC_ALL': 'C'})
 
-    return out.decode("utf-8")
+    return out.decode('utf-8')
 
 
 def remove_remote(cwd):
-    return run_cmd(cwd, ["git", "remote", "rm", "origin"], env={"LC_ALL": "C"})
+    return run_cmd(cwd, ['git', 'remote', 'rm', 'origin'], env={'LC_ALL': 'C'})
 
 
-def clone_and_checkout(repo, cwd, dirname=None, remove_git_dir=False, branch=None):
+def clone_and_checkout(repo, cwd, dirname=None, remove_git_dir=False,
+                       revision=None, subdirectory=None):
     exists = None
     try:
-        _, err = clone(repo, cwd, dirname=dirname, remove_git_dir=remove_git_dir)
-    except dbt.exceptions.CommandResultError as exc:
-        err = exc.stderr.decode("utf-8")
+        _, err = clone(
+            repo,
+            cwd,
+            dirname=dirname,
+            remove_git_dir=remove_git_dir,
+            subdirectory=subdirectory,
+        )
+    except CommandResultError as exc:
+        err = exc.stderr.decode('utf-8')
         exists = re.match("fatal: destination path '(.+)' already exists", err)
-        if not exists:  # something else is wrong, raise it
-            raise
+        if not exists:
+            raise_git_cloning_problem(repo)
 
     directory = None
     start_sha = None
     if exists:
         directory = exists.group(1)
-        logger.debug("Updating existing dependency {}.", directory)
+        fire_event(GitProgressUpdatingExistingDependency(dir=directory))
     else:
-        matches = re.match("Cloning into '(.+)'", err.decode("utf-8"))
+        matches = re.match("Cloning into '(.+)'", err.decode('utf-8'))
         if matches is None:
-            raise dbt.exceptions.RuntimeException(
+            raise RuntimeException(
                 f'Error cloning {repo} - never saw "Cloning into ..." from git'
             )
         directory = matches.group(1)
-        logger.debug("Pulling new dependency {}.", directory)
+        fire_event(GitProgressPullingNewDependency(dir=directory))
     full_path = os.path.join(cwd, directory)
     start_sha = get_current_sha(full_path)
-    checkout(full_path, repo, branch)
+    checkout(full_path, repo, revision)
     end_sha = get_current_sha(full_path)
     if exists:
         if start_sha == end_sha:
-            logger.debug("  Already at {}, nothing to do.", start_sha[:7])
+            fire_event(GitNothingToDo(sha=start_sha[:7]))
         else:
-            logger.debug(
-                "  Updated checkout from {} to {}.", start_sha[:7], end_sha[:7]
-            )
+            fire_event(GitProgressUpdatedCheckoutRange(
+                start_sha=start_sha[:7], end_sha=end_sha[:7]
+            ))
     else:
-        logger.debug("  Checked out at {}.", end_sha[:7])
-    return directory
+        fire_event(GitProgressCheckedOutAt(end_sha=end_sha[:7]))
+    return os.path.join(directory, subdirectory or '')

core/dbt/clients/jinja.py

@@ -8,17 +8,8 @@ from ast import literal_eval
 from contextlib import contextmanager
 from itertools import chain, islice
 from typing import (
-    List,
-    Union,
-    Set,
-    Optional,
-    Dict,
-    Any,
-    Iterator,
-    Type,
-    NoReturn,
-    Tuple,
-    Callable,
+    List, Union, Set, Optional, Dict, Any, Iterator, Type, NoReturn, Tuple,
+    Callable
 )
 
 import jinja2
@@ -29,25 +20,19 @@ import jinja2.parser
 import jinja2.sandbox
 
 from dbt.utils import (
-    get_dbt_macro_name,
-    get_docs_macro_name,
-    get_materialization_macro_name,
-    deep_map,
+    get_dbt_macro_name, get_docs_macro_name, get_materialization_macro_name,
+    get_test_macro_name, deep_map_render
 )
 
 from dbt.clients._jinja_blocks import BlockIterator, BlockData, BlockTag
-from dbt.contracts.graph.compiled import CompiledSchemaTestNode
-from dbt.contracts.graph.parsed import ParsedSchemaTestNode
+from dbt.contracts.graph.compiled import CompiledGenericTestNode
+from dbt.contracts.graph.parsed import ParsedGenericTestNode
 from dbt.exceptions import (
-    InternalException,
-    raise_compiler_error,
-    CompilationException,
-    invalid_materialization_argument,
-    MacroReturn,
-    JinjaRenderingException,
+    InternalException, raise_compiler_error, CompilationException,
+    invalid_materialization_argument, MacroReturn, JinjaRenderingException,
+    UndefinedMacroException
 )
 from dbt import flags
-from dbt.logger import GLOBAL_LOGGER as logger  # noqa
 
 
 def _linecache_inject(source, write):
@@ -55,26 +40,26 @@ def _linecache_inject(source, write):
         # this is the only reliable way to accomplish this. Obviously, it's
         # really darn noisy and will fill your temporary directory
         tmp_file = tempfile.NamedTemporaryFile(
-            prefix="dbt-macro-compiled-",
-            suffix=".py",
+            prefix='dbt-macro-compiled-',
+            suffix='.py',
             delete=False,
-            mode="w+",
-            encoding="utf-8",
+            mode='w+',
+            encoding='utf-8',
         )
         tmp_file.write(source)
         filename = tmp_file.name
     else:
         # `codecs.encode` actually takes a `bytes` as the first argument if
         # the second argument is 'hex' - mypy does not know this.
-        rnd = codecs.encode(os.urandom(12), "hex")  # type: ignore
-        filename = rnd.decode("ascii")
+        rnd = codecs.encode(os.urandom(12), 'hex')  # type: ignore
+        filename = rnd.decode('ascii')
 
     # put ourselves in the cache
     cache_entry = (
         len(source),
         None,
-        [line + "\n" for line in source.splitlines()],
-        filename,
+        [line + '\n' for line in source.splitlines()],
+        filename
     )
     # linecache does in fact have an attribute `cache`, thanks
     linecache.cache[filename] = cache_entry  # type: ignore
@@ -88,10 +73,12 @@ class MacroFuzzParser(jinja2.parser.Parser):
         # modified to fuzz macros defined in the same file. this way
         # dbt can understand the stack of macros being called.
         #  - @cmcarthur
-        node.name = get_dbt_macro_name(self.parse_assign_target(name_only=True).name)
+        node.name = get_dbt_macro_name(
+            self.parse_assign_target(name_only=True).name)
 
         self.parse_signature(node)
-        node.body = self.parse_statements(("name:endmacro",), drop_needle=True)
+        node.body = self.parse_statements(('name:endmacro',),
+                                          drop_needle=True)
         return node
 
 
@@ -107,8 +94,8 @@ class MacroFuzzEnvironment(jinja2.sandbox.SandboxedEnvironment):
         If the value is 'write', also write the files to disk.
         WARNING: This can write a ton of data if you aren't careful.
         """
-        if filename == "<template>" and flags.MACRO_DEBUGGING:
-            write = flags.MACRO_DEBUGGING == "write"
+        if filename == '<template>' and flags.MACRO_DEBUGGING:
+            write = flags.MACRO_DEBUGGING == 'write'
             filename = _linecache_inject(source, write)
 
         return super()._compile(source, filename)  # type: ignore
@@ -151,7 +138,7 @@ def quoted_native_concat(nodes):
     head = list(islice(nodes, 2))
 
     if not head:
-        return ""
+        return ''
 
     if len(head) == 1:
         raw = head[0]
@@ -193,7 +180,9 @@ class NativeSandboxTemplate(jinja2.nativetypes.NativeTemplate):  # mypy: ignore
         vars = dict(*args, **kwargs)
 
         try:
-            return quoted_native_concat(self.root_render_func(self.new_context(vars)))
+            return quoted_native_concat(
+                self.root_render_func(self.new_context(vars))
+            )
         except Exception:
             return self.environment.handle_exception()
 
@@ -232,10 +221,10 @@ class BaseMacroGenerator:
         self.context: Optional[Dict[str, Any]] = context
 
     def get_template(self):
-        raise NotImplementedError("get_template not implemented!")
+        raise NotImplementedError('get_template not implemented!')
 
     def get_name(self) -> str:
-        raise NotImplementedError("get_name not implemented!")
+        raise NotImplementedError('get_name not implemented!')
 
     def get_macro(self):
         name = self.get_name()
@@ -258,7 +247,9 @@ class BaseMacroGenerator:
     def call_macro(self, *args, **kwargs):
         # called from __call__ methods
         if self.context is None:
-            raise InternalException("Context is still None in call_macro!")
+            raise InternalException(
+                'Context is still None in call_macro!'
+            )
         assert self.context is not None
 
         macro = self.get_macro()
@@ -285,7 +276,7 @@ class MacroStack(threading.local):
     def pop(self, name):
         got = self.call_stack.pop()
         if got != name:
-            raise InternalException(f"popped {got}, expected {name}")
+            raise InternalException(f'popped {got}, expected {name}')
 
 
 class MacroGenerator(BaseMacroGenerator):
@@ -294,7 +285,7 @@ class MacroGenerator(BaseMacroGenerator):
         macro,
         context: Optional[Dict[str, Any]] = None,
         node: Optional[Any] = None,
-        stack: Optional[MacroStack] = None,
+        stack: Optional[MacroStack] = None
     ) -> None:
         super().__init__(context)
         self.macro = macro
@@ -342,7 +333,9 @@ class MacroGenerator(BaseMacroGenerator):
 
 
 class QueryStringGenerator(BaseMacroGenerator):
-    def __init__(self, template_str: str, context: Dict[str, Any]) -> None:
+    def __init__(
+        self, template_str: str, context: Dict[str, Any]
+    ) -> None:
         super().__init__(context)
         self.template_str: str = template_str
         env = get_environment()
@@ -352,7 +345,7 @@ class QueryStringGenerator(BaseMacroGenerator):
         )
 
     def get_name(self) -> str:
-        return "query_comment_macro"
+        return 'query_comment_macro'
 
     def get_template(self):
         """Don't use the template cache, we don't have a node"""
@@ -363,41 +356,45 @@ class QueryStringGenerator(BaseMacroGenerator):
 
 
 class MaterializationExtension(jinja2.ext.Extension):
-    tags = ["materialization"]
+    tags = ['materialization']
 
     def parse(self, parser):
         node = jinja2.nodes.Macro(lineno=next(parser.stream).lineno)
-        materialization_name = parser.parse_assign_target(name_only=True).name
+        materialization_name = \
+            parser.parse_assign_target(name_only=True).name
 
-        adapter_name = "default"
+        adapter_name = 'default'
         node.args = []
         node.defaults = []
 
-        while parser.stream.skip_if("comma"):
+        while parser.stream.skip_if('comma'):
             target = parser.parse_assign_target(name_only=True)
 
-            if target.name == "default":
+            if target.name == 'default':
                 pass
 
-            elif target.name == "adapter":
-                parser.stream.expect("assign")
+            elif target.name == 'adapter':
+                parser.stream.expect('assign')
                 value = parser.parse_expression()
                 adapter_name = value.value
 
             else:
-                invalid_materialization_argument(materialization_name, target.name)
+                invalid_materialization_argument(
+                    materialization_name, target.name
+                )
 
-        node.name = get_materialization_macro_name(materialization_name, adapter_name)
-
-        node.body = parser.parse_statements(
-            ("name:endmaterialization",), drop_needle=True
+        node.name = get_materialization_macro_name(
+            materialization_name, adapter_name
         )
 
+        node.body = parser.parse_statements(('name:endmaterialization',),
+                                            drop_needle=True)
+
         return node
 
 
 class DocumentationExtension(jinja2.ext.Extension):
-    tags = ["docs"]
+    tags = ['docs']
 
     def parse(self, parser):
         node = jinja2.nodes.Macro(lineno=next(parser.stream).lineno)
@@ -406,12 +403,27 @@ class DocumentationExtension(jinja2.ext.Extension):
         node.args = []
         node.defaults = []
         node.name = get_docs_macro_name(docs_name)
-        node.body = parser.parse_statements(("name:enddocs",), drop_needle=True)
+        node.body = parser.parse_statements(('name:enddocs',),
+                                            drop_needle=True)
+        return node
+
+
+class TestExtension(jinja2.ext.Extension):
+    tags = ['test']
+
+    def parse(self, parser):
+        node = jinja2.nodes.Macro(lineno=next(parser.stream).lineno)
+        test_name = parser.parse_assign_target(name_only=True).name
+
+        parser.parse_signature(node)
+        node.name = get_test_macro_name(test_name)
+        node.body = parser.parse_statements(('name:endtest',),
+                                            drop_needle=True)
         return node
 
 
 def _is_dunder_name(name):
-    return name.startswith("__") and name.endswith("__")
+    return name.startswith('__') and name.endswith('__')
 
 
 def create_undefined(node=None):
@@ -432,11 +444,10 @@ def create_undefined(node=None):
             return self
 
         def __getattr__(self, name):
-            if name == "name" or _is_dunder_name(name):
+            if name == 'name' or _is_dunder_name(name):
                 raise AttributeError(
-                    "'{}' object has no attribute '{}'".format(
-                        type(self).__name__, name
-                    )
+                    "'{}' object has no attribute '{}'"
+                    .format(type(self).__name__, name)
                 )
 
             self.name = name
@@ -447,24 +458,24 @@ def create_undefined(node=None):
             return self
 
         def __reduce__(self):
-            raise_compiler_error(f"{self.name} is undefined", node=node)
+            raise_compiler_error(f'{self.name} is undefined', node=node)
 
     return Undefined
 
 
 NATIVE_FILTERS: Dict[str, Callable[[Any], Any]] = {
-    "as_text": TextMarker,
-    "as_bool": BoolMarker,
-    "as_native": NativeMarker,
-    "as_number": NumberMarker,
+    'as_text': TextMarker,
+    'as_bool': BoolMarker,
+    'as_native': NativeMarker,
+    'as_number': NumberMarker,
 }
 
 
 TEXT_FILTERS: Dict[str, Callable[[Any], Any]] = {
-    "as_text": lambda x: x,
-    "as_bool": lambda x: x,
-    "as_native": lambda x: x,
-    "as_number": lambda x: x,
+    'as_text': lambda x: x,
+    'as_bool': lambda x: x,
+    'as_native': lambda x: x,
+    'as_number': lambda x: x,
 }
 
 
@@ -474,14 +485,15 @@ def get_environment(
     native: bool = False,
 ) -> jinja2.Environment:
     args: Dict[str, List[Union[str, Type[jinja2.ext.Extension]]]] = {
-        "extensions": ["jinja2.ext.do"]
+        'extensions': ['jinja2.ext.do']
     }
 
     if capture_macros:
-        args["undefined"] = create_undefined(node)
+        args['undefined'] = create_undefined(node)
 
-    args["extensions"].append(MaterializationExtension)
-    args["extensions"].append(DocumentationExtension)
+    args['extensions'].append(MaterializationExtension)
+    args['extensions'].append(DocumentationExtension)
+    args['extensions'].append(TestExtension)
 
     env_cls: Type[jinja2.Environment]
     text_filter: Type
@@ -506,7 +518,7 @@ def catch_jinja(node=None) -> Iterator[None]:
         e.translated = False
         raise CompilationException(str(e), node) from e
     except jinja2.exceptions.UndefinedError as e:
-        raise CompilationException(str(e), node) from e
+        raise UndefinedMacroException(str(e), node) from e
     except CompilationException as exc:
         exc.add_node(node)
         raise
@@ -544,8 +556,8 @@ def _requote_result(raw_value: str, rendered: str) -> str:
     elif single_quoted:
         quote_char = "'"
     else:
-        quote_char = ""
-    return f"{quote_char}{rendered}{quote_char}"
+        quote_char = ''
+    return f'{quote_char}{rendered}{quote_char}'
 
 
 # performance note: Local benmcharking (so take it with a big grain of salt!)
@@ -553,7 +565,7 @@ def _requote_result(raw_value: str, rendered: str) -> str:
 # checking two separate patterns, but the standard deviation is smaller with
 # one pattern. The time difference between the two was ~2 std deviations, which
 # is small enough that I've just chosen the more readable option.
-_HAS_RENDER_CHARS_PAT = re.compile(r"({[{%#]|[#}%]})")
+_HAS_RENDER_CHARS_PAT = re.compile(r'({[{%#]|[#}%]})')
 
 
 def get_rendered(
@@ -570,9 +582,9 @@ def get_rendered(
     # native=True case by passing the input string to ast.literal_eval, like
     # the native renderer does.
     if (
-        not native
-        and isinstance(string, str)
-        and _HAS_RENDER_CHARS_PAT.search(string) is None
+        not native and
+        isinstance(string, str) and
+        _HAS_RENDER_CHARS_PAT.search(string) is None
     ):
         return string
     template = get_template(
@@ -609,40 +621,46 @@ def extract_toplevel_blocks(
         `collect_raw_data` is `True`) `BlockData` objects.
     """
     return BlockIterator(data).lex_for_blocks(
-        allowed_blocks=allowed_blocks, collect_raw_data=collect_raw_data
+        allowed_blocks=allowed_blocks,
+        collect_raw_data=collect_raw_data
     )
 
 
-SCHEMA_TEST_KWARGS_NAME = "_dbt_schema_test_kwargs"
+GENERIC_TEST_KWARGS_NAME = '_dbt_generic_test_kwargs'
 
 
 def add_rendered_test_kwargs(
     context: Dict[str, Any],
-    node: Union[ParsedSchemaTestNode, CompiledSchemaTestNode],
+    node: Union[ParsedGenericTestNode, CompiledGenericTestNode],
     capture_macros: bool = False,
 ) -> None:
     """Render each of the test kwargs in the given context using the native
     renderer, then insert that value into the given context as the special test
     keyword arguments member.
     """
-    looks_like_func = r"^\s*(env_var|ref|var|source|doc)\s*\(.+\)\s*$"
+    looks_like_func = r'^\s*(env_var|ref|var|source|doc)\s*\(.+\)\s*$'
 
-    def _convert_function(value: Any, keypath: Tuple[Union[str, int], ...]) -> Any:
+    def _convert_function(
+        value: Any, keypath: Tuple[Union[str, int], ...]
+    ) -> Any:
         if isinstance(value, str):
-            if keypath == ("column_name",):
+            if keypath == ('column_name',):
                 # special case: Don't render column names as native, make them
                 # be strings
                 return value
 
             if re.match(looks_like_func, value) is not None:
                 # curly braces to make rendering happy
-                value = f"{{{{ {value} }}}}"
+                value = f'{{{{ {value} }}}}'
 
             value = get_rendered(
-                value, context, node, capture_macros=capture_macros, native=True
+                value, context, node, capture_macros=capture_macros,
+                native=True
             )
 
         return value
 
-    kwargs = deep_map(_convert_function, node.test_metadata.kwargs)
-    context[SCHEMA_TEST_KWARGS_NAME] = kwargs
+    # The test_metadata.kwargs come from the test builder, and were set
+    # when the test node was created in _parse_generic_test.
+    kwargs = deep_map_render(_convert_function, node.test_metadata.kwargs)
+    context[GENERIC_TEST_KWARGS_NAME] = kwargs

core/dbt/clients/jinja_static.py

@@ -0,0 +1,154 @@
+import jinja2
+from dbt.clients.jinja import get_environment
+from dbt.exceptions import raise_compiler_error
+
+
+def statically_extract_macro_calls(string, ctx, db_wrapper=None):
+    # set 'capture_macros' to capture undefined
+    env = get_environment(None, capture_macros=True)
+    parsed = env.parse(string)
+
+    standard_calls = ['source', 'ref', 'config']
+    possible_macro_calls = []
+    for func_call in parsed.find_all(jinja2.nodes.Call):
+        func_name = None
+        if hasattr(func_call, 'node') and hasattr(func_call.node, 'name'):
+            func_name = func_call.node.name
+        else:
+            # func_call for dbt_utils.current_timestamp macro
+            # Call(
+            #   node=Getattr(
+            #     node=Name(
+            #       name='dbt_utils',
+            #       ctx='load'
+            #     ),
+            #     attr='current_timestamp',
+            #     ctx='load
+            #   ),
+            #   args=[],
+            #   kwargs=[],
+            #   dyn_args=None,
+            #   dyn_kwargs=None
+            # )
+            if (hasattr(func_call, 'node') and
+                    hasattr(func_call.node, 'node') and
+                    type(func_call.node.node).__name__ == 'Name' and
+                    hasattr(func_call.node, 'attr')):
+                package_name = func_call.node.node.name
+                macro_name = func_call.node.attr
+                if package_name == 'adapter':
+                    if macro_name == 'dispatch':
+                        ad_macro_calls = statically_parse_adapter_dispatch(
+                            func_call, ctx, db_wrapper)
+                        possible_macro_calls.extend(ad_macro_calls)
+                    else:
+                        # This skips calls such as adapter.parse_index
+                        continue
+                else:
+                    func_name = f'{package_name}.{macro_name}'
+            else:
+                continue
+        if not func_name:
+            continue
+        if func_name in standard_calls:
+            continue
+        elif ctx.get(func_name):
+            continue
+        else:
+            if func_name not in possible_macro_calls:
+                possible_macro_calls.append(func_name)
+
+    return possible_macro_calls
+
+
+# Call(
+#   node=Getattr(
+#     node=Name(
+#       name='adapter',
+#       ctx='load'
+#     ),
+#     attr='dispatch',
+#     ctx='load'
+#   ),
+#   args=[
+#     Const(value='test_pkg_and_dispatch')
+#   ],
+#   kwargs=[
+#     Keyword(
+#       key='packages',
+#       value=Call(node=Getattr(node=Name(name='local_utils', ctx='load'),
+#          attr='_get_utils_namespaces', ctx='load'), args=[], kwargs=[],
+#          dyn_args=None, dyn_kwargs=None)
+#     )
+#   ],
+#   dyn_args=None,
+#   dyn_kwargs=None
+# )
+def statically_parse_adapter_dispatch(func_call, ctx, db_wrapper):
+    possible_macro_calls = []
+    # This captures an adapter.dispatch('<macro_name>') call.
+
+    func_name = None
+    # macro_name positional argument
+    if len(func_call.args) > 0:
+        func_name = func_call.args[0].value
+    if func_name:
+        possible_macro_calls.append(func_name)
+
+    # packages positional argument
+    macro_namespace = None
+    packages_arg = None
+    packages_arg_type = None
+
+    if len(func_call.args) > 1:
+        packages_arg = func_call.args[1]
+        # This can be a List or a Call
+        packages_arg_type = type(func_call.args[1]).__name__
+
+    # keyword arguments
+    if func_call.kwargs:
+        for kwarg in func_call.kwargs:
+            if kwarg.key == 'macro_name':
+                # This will remain to enable static resolution
+                if type(kwarg.value).__name__ == 'Const':
+                    func_name = kwarg.value.value
+                    possible_macro_calls.append(func_name)
+                else:
+                    raise_compiler_error(f"The macro_name parameter ({kwarg.value.value}) "
+                                         "to adapter.dispatch was not a string")
+            elif kwarg.key == 'macro_namespace':
+                # This will remain to enable static resolution
+                kwarg_type = type(kwarg.value).__name__
+                if kwarg_type == 'Const':
+                    macro_namespace = kwarg.value.value
+                else:
+                    raise_compiler_error("The macro_namespace parameter to adapter.dispatch "
+                                         f"is a {kwarg_type}, not a string")
+
+    # positional arguments
+    if packages_arg:
+        if packages_arg_type == 'List':
+            # This will remain to enable static resolution
+            packages = []
+            for item in packages_arg.items:
+                packages.append(item.value)
+        elif packages_arg_type == 'Const':
+            # This will remain to enable static resolution
+            macro_namespace = packages_arg.value
+
+    if db_wrapper:
+        macro = db_wrapper.dispatch(
+            func_name,
+            macro_namespace=macro_namespace
+        ).macro
+        func_name = f'{macro.package_name}.{macro.name}'
+        possible_macro_calls.append(func_name)
+    else:  # this is only for test/unit/test_macro_calls.py
+        if macro_namespace:
+            packages = [macro_namespace]
+        else:
+            packages = []
+        for package_name in packages:
+            possible_macro_calls.append(f'{package_name}.{func_name}')
+
+    return possible_macro_calls

core/dbt/clients/registry.py

@@ -1,72 +1,91 @@
-from functools import wraps
+import functools
 import requests
-from dbt.exceptions import RegistryException
-from dbt.utils import memoized
-from dbt.logger import GLOBAL_LOGGER as logger
+from dbt.events.functions import fire_event
+from dbt.events.types import (
+    RegistryProgressMakingGETRequest,
+    RegistryProgressGETResponse
+)
+from dbt.utils import memoized, _connection_exception_retry as connection_exception_retry
+from dbt import deprecations
 import os
-import time
 
-if os.getenv("DBT_PACKAGE_HUB_URL"):
-    DEFAULT_REGISTRY_BASE_URL = os.getenv("DBT_PACKAGE_HUB_URL")
+if os.getenv('DBT_PACKAGE_HUB_URL'):
+    DEFAULT_REGISTRY_BASE_URL = os.getenv('DBT_PACKAGE_HUB_URL')
 else:
-    DEFAULT_REGISTRY_BASE_URL = "https://hub.getdbt.com/"
+    DEFAULT_REGISTRY_BASE_URL = 'https://hub.getdbt.com/'
 
 
 def _get_url(url, registry_base_url=None):
     if registry_base_url is None:
         registry_base_url = DEFAULT_REGISTRY_BASE_URL
 
-    return "{}{}".format(registry_base_url, url)
+    return '{}{}'.format(registry_base_url, url)
 
 
-def _wrap_exceptions(fn):
-    @wraps(fn)
-    def wrapper(*args, **kwargs):
-        max_attempts = 5
-        attempt = 0
-        while True:
-            attempt += 1
-            try:
-                return fn(*args, **kwargs)
-            except requests.exceptions.ConnectionError as exc:
-                if attempt < max_attempts:
-                    time.sleep(1)
-                    continue
-
-                raise RegistryException("Unable to connect to registry hub") from exc
-
-    return wrapper
+def _get_with_retries(path, registry_base_url=None):
+    get_fn = functools.partial(_get, path, registry_base_url)
+    return connection_exception_retry(get_fn, 5)
 
 
-@_wrap_exceptions
 def _get(path, registry_base_url=None):
     url = _get_url(path, registry_base_url)
-    logger.debug("Making package registry request: GET {}".format(url))
-    resp = requests.get(url)
-    logger.debug("Response from registry: GET {} {}".format(url, resp.status_code))
+    fire_event(RegistryProgressMakingGETRequest(url=url))
+    resp = requests.get(url, timeout=30)
+    fire_event(RegistryProgressGETResponse(url=url, resp_code=resp.status_code))
     resp.raise_for_status()
+
+    # It is unexpected for the content of the response to be None so if it is, raising this error
+    # will cause this function to retry (if called within _get_with_retries) and hopefully get
+    # a response.  This seems to happen when there's an issue with the Hub.
+    # See https://github.com/dbt-labs/dbt-core/issues/4577
+    if resp.json() is None:
+        raise requests.exceptions.ContentDecodingError(
+            'Request error: The response is None', response=resp
+        )
     return resp.json()
 
 
 def index(registry_base_url=None):
-    return _get("api/v1/index.json", registry_base_url)
+    return _get_with_retries('api/v1/index.json', registry_base_url)
 
 
 index_cached = memoized(index)
 
 
 def packages(registry_base_url=None):
-    return _get("api/v1/packages.json", registry_base_url)
+    return _get_with_retries('api/v1/packages.json', registry_base_url)
 
 
 def package(name, registry_base_url=None):
-    return _get("api/v1/{}.json".format(name), registry_base_url)
+    response = _get_with_retries('api/v1/{}.json'.format(name), registry_base_url)
+
+    # Either redirectnamespace or redirectname in the JSON response indicate a redirect
+    # redirectnamespace redirects based on package ownership
+    # redirectname redirects based on package name
+    # Both can be present at the same time, or neither. Fails gracefully to old name
+
+    if ('redirectnamespace' in response) or ('redirectname' in response):
+
+        if ('redirectnamespace' in response) and response['redirectnamespace'] is not None:
+            use_namespace = response['redirectnamespace']
+        else:
+            use_namespace = response['namespace']
+
+        if ('redirectname' in response) and response['redirectname'] is not None:
+            use_name = response['redirectname']
+        else:
+            use_name = response['name']
+
+        new_nwo = use_namespace + "/" + use_name
+        deprecations.warn('package-redirect', old_name=name, new_name=new_nwo)
+
+    return response
 
 
 def package_version(name, version, registry_base_url=None):
-    return _get("api/v1/{}/{}.json".format(name, version), registry_base_url)
+    return _get_with_retries('api/v1/{}/{}.json'.format(name, version), registry_base_url)
 
 
 def get_available_versions(name):
     response = package(name)
-    return list(response["versions"])
+    return list(response['versions'])

core/dbt/clients/system.py

@@ -1,4 +1,5 @@
 import errno
+import functools
 import fnmatch
 import json
 import os
@@ -10,14 +11,19 @@ import sys
 import tarfile
 import requests
 import stat
-from typing import Type, NoReturn, List, Optional, Dict, Any, Tuple, Callable, Union
+from typing import (
+    Type, NoReturn, List, Optional, Dict, Any, Tuple, Callable, Union
+)
 
+from dbt.events.functions import fire_event
+from dbt.events.types import (
+    SystemErrorRetrievingModTime, SystemCouldNotWrite, SystemExecutingCmd, SystemStdOutMsg,
+    SystemStdErrMsg, SystemReportReturnCode
+)
 import dbt.exceptions
-import dbt.utils
+from dbt.utils import _connection_exception_retry as connection_exception_retry
 
-from dbt.logger import GLOBAL_LOGGER as logger
-
-if sys.platform == "win32":
+if sys.platform == 'win32':
     from ctypes import WinDLL, c_bool
 else:
     WinDLL = None
@@ -28,7 +34,7 @@ def find_matching(
     root_path: str,
     relative_paths_to_search: List[str],
     file_pattern: str,
-) -> List[Dict[str, str]]:
+) -> List[Dict[str, Any]]:
     """
     Given an absolute `root_path`, a list of relative paths to that
     absolute root path (`relative_paths_to_search`), and a `file_pattern`
@@ -49,29 +55,36 @@ def find_matching(
     reobj = re.compile(regex, re.IGNORECASE)
 
     for relative_path_to_search in relative_paths_to_search:
-        absolute_path_to_search = os.path.join(root_path, relative_path_to_search)
+        absolute_path_to_search = os.path.join(
+            root_path, relative_path_to_search)
         walk_results = os.walk(absolute_path_to_search)
 
         for current_path, subdirectories, local_files in walk_results:
             for local_file in local_files:
                 absolute_path = os.path.join(current_path, local_file)
-                relative_path = os.path.relpath(absolute_path, absolute_path_to_search)
+                relative_path = os.path.relpath(
+                    absolute_path, absolute_path_to_search
+                )
+                modification_time = 0.0
+                try:
+                    modification_time = os.path.getmtime(absolute_path)
+                except OSError:
+                    fire_event(SystemErrorRetrievingModTime(path=absolute_path))
                 if reobj.match(local_file):
-                    matching.append(
-                        {
-                            "searched_path": relative_path_to_search,
-                            "absolute_path": absolute_path,
-                            "relative_path": relative_path,
-                        }
-                    )
+                    matching.append({
+                        'searched_path': relative_path_to_search,
+                        'absolute_path': absolute_path,
+                        'relative_path': relative_path,
+                        'modification_time': modification_time,
+                    })
 
     return matching
 
 
 def load_file_contents(path: str, strip: bool = True) -> str:
     path = convert_path(path)
-    with open(path, "rb") as handle:
-        to_return = handle.read().decode("utf-8")
+    with open(path, 'rb') as handle:
+        to_return = handle.read().decode('utf-8')
 
     if strip:
         to_return = to_return.strip()
@@ -98,14 +111,14 @@ def make_directory(path: str) -> None:
                 raise e
 
 
-def make_file(path: str, contents: str = "", overwrite: bool = False) -> bool:
+def make_file(path: str, contents: str = '', overwrite: bool = False) -> bool:
     """
     Make a file at `path` assuming that the directory it resides in already
     exists. The file is saved with contents `contents`
     """
     if overwrite or not os.path.exists(path):
         path = convert_path(path)
-        with open(path, "w") as fh:
+        with open(path, 'w') as fh:
             fh.write(contents)
         return True
 
@@ -117,7 +130,7 @@ def make_symlink(source: str, link_path: str) -> None:
     Create a symlink at `link_path` referring to `source`.
     """
     if not supports_symlinks():
-        dbt.exceptions.system_error("create a symbolic link")
+        dbt.exceptions.system_error('create a symbolic link')
 
     os.symlink(source, link_path)
 
@@ -126,11 +139,11 @@ def supports_symlinks() -> bool:
     return getattr(os, "symlink", None) is not None
 
 
-def write_file(path: str, contents: str = "") -> bool:
+def write_file(path: str, contents: str = '') -> bool:
     path = convert_path(path)
     try:
         make_directory(os.path.dirname(path))
-        with open(path, "w", encoding="utf-8") as f:
+        with open(path, 'w', encoding='utf-8') as f:
             f.write(str(contents))
     except Exception as exc:
         # note that you can't just catch FileNotFound, because sometimes
@@ -139,21 +152,18 @@ def write_file(path: str, contents: str = "") -> bool:
         # sometimes windows fails to write paths that are less than the length
         # limit. So on windows, suppress all errors that happen from writing
         # to disk.
-        if os.name == "nt":
+        if os.name == 'nt':
             # sometimes we get a winerror of 3 which means the path was
             # definitely too long, but other times we don't and it means the
             # path was just probably too long. This is probably based on the
             # windows/python version.
-            if getattr(exc, "winerror", 0) == 3:
-                reason = "Path was too long"
+            if getattr(exc, 'winerror', 0) == 3:
+                reason = 'Path was too long'
             else:
-                reason = "Path was possibly too long"
+                reason = 'Path was possibly too long'
             # all our hard work and the path was still too long. Log and
             # continue.
-            logger.debug(
-                f"Could not write to path {path}({len(path)} characters): "
-                f"{reason}\nexception: {exc}"
-            )
+            fire_event(SystemCouldNotWrite(path=path, reason=reason, exc=exc))
         else:
             raise
     return True
@@ -186,7 +196,10 @@ def resolve_path_from_base(path_to_resolve: str, base_path: str) -> str:
     If path_to_resolve is an absolute path or a user path (~), just
     resolve it to an absolute path and return.
     """
-    return os.path.abspath(os.path.join(base_path, os.path.expanduser(path_to_resolve)))
+    return os.path.abspath(
+        os.path.join(
+            base_path,
+            os.path.expanduser(path_to_resolve)))
 
 
 def rmdir(path: str) -> None:
@@ -196,7 +209,7 @@ def rmdir(path: str) -> None:
     cloned via git) can cause rmtree to throw a PermissionError exception
     """
     path = convert_path(path)
-    if sys.platform == "win32":
+    if sys.platform == 'win32':
         onerror = _windows_rmdir_readonly
     else:
         onerror = None
@@ -215,7 +228,7 @@ def _win_prepare_path(path: str) -> str:
     # letter back in.
     # Unless it starts with '\\'. In that case, the path is a UNC mount point
     # and splitdrive will be fine.
-    if not path.startswith("\\\\") and path.startswith("\\"):
+    if not path.startswith('\\\\') and path.startswith('\\'):
         curdrive = os.path.splitdrive(os.getcwd())[0]
         path = curdrive + path
 
@@ -230,7 +243,7 @@ def _win_prepare_path(path: str) -> str:
 
 
 def _supports_long_paths() -> bool:
-    if sys.platform != "win32":
+    if sys.platform != 'win32':
         return True
     # Eryk Sun says to use `WinDLL('ntdll')` instead of `windll.ntdll` because
     # of pointer caching in a comment here:
@@ -238,11 +251,11 @@ def _supports_long_paths() -> bool:
     # I don't know exaclty what he means, but I am inclined to believe him as
     # he's pretty active on Python windows bugs!
     try:
-        dll = WinDLL("ntdll")
+        dll = WinDLL('ntdll')
     except OSError:  # I don't think this happens? you need ntdll to run python
         return False
     # not all windows versions have it at all
-    if not hasattr(dll, "RtlAreLongPathsEnabled"):
+    if not hasattr(dll, 'RtlAreLongPathsEnabled'):
         return False
     # tell windows we want to get back a single unsigned byte (a bool).
     dll.RtlAreLongPathsEnabled.restype = c_bool
@@ -262,7 +275,7 @@ def convert_path(path: str) -> str:
     if _supports_long_paths():
         return path
 
-    prefix = "\\\\?\\"
+    prefix = '\\\\?\\'
     # Nothing to do
     if path.startswith(prefix):
         return path
@@ -293,35 +306,39 @@ def path_is_symlink(path: str) -> bool:
 
 def open_dir_cmd() -> str:
     # https://docs.python.org/2/library/sys.html#sys.platform
-    if sys.platform == "win32":
-        return "start"
+    if sys.platform == 'win32':
+        return 'start'
 
-    elif sys.platform == "darwin":
-        return "open"
+    elif sys.platform == 'darwin':
+        return 'open'
 
     else:
-        return "xdg-open"
+        return 'xdg-open'
 
 
-def _handle_posix_cwd_error(exc: OSError, cwd: str, cmd: List[str]) -> NoReturn:
+def _handle_posix_cwd_error(
+    exc: OSError, cwd: str, cmd: List[str]
+) -> NoReturn:
     if exc.errno == errno.ENOENT:
-        message = "Directory does not exist"
+        message = 'Directory does not exist'
     elif exc.errno == errno.EACCES:
-        message = "Current user cannot access directory, check permissions"
+        message = 'Current user cannot access directory, check permissions'
     elif exc.errno == errno.ENOTDIR:
-        message = "Not a directory"
+        message = 'Not a directory'
     else:
-        message = "Unknown OSError: {} - cwd".format(str(exc))
+        message = 'Unknown OSError: {} - cwd'.format(str(exc))
     raise dbt.exceptions.WorkingDirectoryError(cwd, cmd, message)
 
 
-def _handle_posix_cmd_error(exc: OSError, cwd: str, cmd: List[str]) -> NoReturn:
+def _handle_posix_cmd_error(
+    exc: OSError, cwd: str, cmd: List[str]
+) -> NoReturn:
     if exc.errno == errno.ENOENT:
         message = "Could not find command, ensure it is in the user's PATH"
     elif exc.errno == errno.EACCES:
-        message = "User does not have permissions for this command"
+        message = 'User does not have permissions for this command'
     else:
-        message = "Unknown OSError: {} - cmd".format(str(exc))
+        message = 'Unknown OSError: {} - cmd'.format(str(exc))
     raise dbt.exceptions.ExecutableError(cwd, cmd, message)
 
 
@@ -346,7 +363,7 @@ def _handle_posix_error(exc: OSError, cwd: str, cmd: List[str]) -> NoReturn:
             - exc.errno == EACCES
             - exc.filename == None(?)
     """
-    if getattr(exc, "filename", None) == cwd:
+    if getattr(exc, 'filename', None) == cwd:
         _handle_posix_cwd_error(exc, cwd, cmd)
     else:
         _handle_posix_cmd_error(exc, cwd, cmd)
@@ -355,48 +372,46 @@ def _handle_posix_error(exc: OSError, cwd: str, cmd: List[str]) -> NoReturn:
 def _handle_windows_error(exc: OSError, cwd: str, cmd: List[str]) -> NoReturn:
     cls: Type[dbt.exceptions.Exception] = dbt.exceptions.CommandError
     if exc.errno == errno.ENOENT:
-        message = (
-            "Could not find command, ensure it is in the user's PATH "
-            "and that the user has permissions to run it"
-        )
+        message = ("Could not find command, ensure it is in the user's PATH "
+                   "and that the user has permissions to run it")
         cls = dbt.exceptions.ExecutableError
     elif exc.errno == errno.ENOEXEC:
-        message = "Command was not executable, ensure it is valid"
+        message = ('Command was not executable, ensure it is valid')
         cls = dbt.exceptions.ExecutableError
     elif exc.errno == errno.ENOTDIR:
-        message = (
-            "Unable to cd: path does not exist, user does not have"
-            " permissions, or not a directory"
-        )
+        message = ('Unable to cd: path does not exist, user does not have'
+                   ' permissions, or not a directory')
         cls = dbt.exceptions.WorkingDirectoryError
     else:
         message = 'Unknown error: {} (errno={}: "{}")'.format(
-            str(exc), exc.errno, errno.errorcode.get(exc.errno, "<Unknown!>")
+            str(exc), exc.errno, errno.errorcode.get(exc.errno, '<Unknown!>')
         )
     raise cls(cwd, cmd, message)
 
 
 def _interpret_oserror(exc: OSError, cwd: str, cmd: List[str]) -> NoReturn:
-    """Interpret an OSError exc and raise the appropriate dbt exception."""
+    """Interpret an OSError exc and raise the appropriate dbt exception.
+
+    """
     if len(cmd) == 0:
         raise dbt.exceptions.CommandError(cwd, cmd)
 
     # all of these functions raise unconditionally
-    if os.name == "nt":
+    if os.name == 'nt':
         _handle_windows_error(exc, cwd, cmd)
     else:
         _handle_posix_error(exc, cwd, cmd)
 
     # this should not be reachable, raise _something_ at least!
     raise dbt.exceptions.InternalException(
-        "Unhandled exception in _interpret_oserror: {}".format(exc)
+        'Unhandled exception in _interpret_oserror: {}'.format(exc)
     )
 
 
 def run_cmd(
     cwd: str, cmd: List[str], env: Optional[Dict[str, Any]] = None
 ) -> Tuple[bytes, bytes]:
-    logger.debug('Executing "{}"'.format(" ".join(cmd)))
+    fire_event(SystemExecutingCmd(cmd=cmd))
     if len(cmd) == 0:
         raise dbt.exceptions.CommandError(cwd, cmd)
 
@@ -408,31 +423,45 @@ def run_cmd(
         full_env.update(env)
 
     try:
+        exe_pth = shutil.which(cmd[0])
+        if exe_pth:
+            cmd = [os.path.abspath(exe_pth)] + list(cmd[1:])
         proc = subprocess.Popen(
-            cmd, cwd=cwd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, env=full_env
-        )
+            cmd,
+            cwd=cwd,
+            stdout=subprocess.PIPE,
+            stderr=subprocess.PIPE,
+            env=full_env)
 
         out, err = proc.communicate()
     except OSError as exc:
         _interpret_oserror(exc, cwd, cmd)
 
-    logger.debug('STDOUT: "{!s}"'.format(out))
-    logger.debug('STDERR: "{!s}"'.format(err))
+    fire_event(SystemStdOutMsg(bmsg=out))
+    fire_event(SystemStdErrMsg(bmsg=err))
 
     if proc.returncode != 0:
-        logger.debug("command return code={}".format(proc.returncode))
-        raise dbt.exceptions.CommandResultError(cwd, cmd, proc.returncode, out, err)
+        fire_event(SystemReportReturnCode(returncode=proc.returncode))
+        raise dbt.exceptions.CommandResultError(cwd, cmd, proc.returncode,
+                                                out, err)
 
     return out, err
 
 
+def download_with_retries(
+    url: str, path: str, timeout: Optional[Union[float, tuple]] = None
+) -> None:
+    download_fn = functools.partial(download, url, path, timeout)
+    connection_exception_retry(download_fn, 5)
+
+
 def download(
     url: str, path: str, timeout: Optional[Union[float, tuple]] = None
 ) -> None:
     path = convert_path(path)
-    connection_timeout = timeout or float(os.getenv("DBT_HTTP_TIMEOUT", 10))
+    connection_timeout = timeout or float(os.getenv('DBT_HTTP_TIMEOUT', 10))
     response = requests.get(url, timeout=connection_timeout)
-    with open(path, "wb") as handle:
+    with open(path, 'wb') as handle:
         for block in response.iter_content(1024 * 64):
             handle.write(block)
 
@@ -456,7 +485,7 @@ def untar_package(
 ) -> None:
     tar_path = convert_path(tar_path)
     tar_dir_name = None
-    with tarfile.open(tar_path, "r") as tarball:
+    with tarfile.open(tar_path, 'r:gz') as tarball:
         tarball.extractall(dest_dir)
         tar_dir_name = os.path.commonprefix(tarball.getnames())
     if rename_to:
@@ -472,7 +501,7 @@ def chmod_and_retry(func, path, exc_info):
     We want to retry most operations here, but listdir is one that we know will
     be useless.
     """
-    if func is os.listdir or os.name != "nt":
+    if func is os.listdir or os.name != 'nt':
         raise
     os.chmod(path, stat.S_IREAD | stat.S_IWRITE)
     # on error,this will raise.
@@ -493,7 +522,7 @@ def move(src, dst):
     """
     src = convert_path(src)
     dst = convert_path(dst)
-    if os.name != "nt":
+    if os.name != 'nt':
         return shutil.move(src, dst)
 
     if os.path.isdir(dst):
@@ -501,7 +530,7 @@ def move(src, dst):
             os.rename(src, dst)
             return
 
-        dst = os.path.join(dst, os.path.basename(src.rstrip("/\\")))
+        dst = os.path.join(dst, os.path.basename(src.rstrip('/\\')))
         if os.path.exists(dst):
             raise EnvironmentError("Path '{}' already exists".format(dst))
 
@@ -510,10 +539,11 @@ def move(src, dst):
     except OSError:
         # probably different drives
         if os.path.isdir(src):
-            if _absnorm(dst + "\\").startswith(_absnorm(src + "\\")):
+            if _absnorm(dst + '\\').startswith(_absnorm(src + '\\')):
                 # dst is inside src
                 raise EnvironmentError(
-                    "Cannot move a directory '{}' into itself '{}'".format(src, dst)
+                    "Cannot move a directory '{}' into itself '{}'"
+                    .format(src, dst)
                 )
             shutil.copytree(src, dst, symlinks=True)
             rmtree(src)

core/dbt/clients/yaml_helper.py

@@ -1,13 +1,18 @@
 import dbt.exceptions
-
+from typing import Any, Dict, Optional
 import yaml
-import yaml.scanner
 
 # the C version is faster, but it doesn't always exist
 try:
-    from yaml import CLoader as Loader, CSafeLoader as SafeLoader, CDumper as Dumper
+    from yaml import (
+        CLoader as Loader,
+        CSafeLoader as SafeLoader,
+        CDumper as Dumper
+    )
 except ImportError:
-    from yaml import Loader, SafeLoader, Dumper  # type: ignore  # noqa: F401
+    from yaml import (  # type: ignore  # noqa: F401
+        Loader, SafeLoader, Dumper
+    )
 
 
 YAML_ERROR_MESSAGE = """
@@ -27,14 +32,14 @@ def line_no(i, line, width=3):
 
 
 def prefix_with_line_numbers(string, no_start, no_end):
-    line_list = string.split("\n")
+    line_list = string.split('\n')
 
     numbers = range(no_start, no_end)
     relevant_lines = line_list[no_start:no_end]
 
-    return "\n".join(
-        [line_no(i + 1, line) for (i, line) in zip(numbers, relevant_lines)]
-    )
+    return "\n".join([
+        line_no(i + 1, line) for (i, line) in zip(numbers, relevant_lines)
+    ])
 
 
 def contextualized_yaml_error(raw_contents, error):
@@ -45,12 +50,12 @@ def contextualized_yaml_error(raw_contents, error):
 
     nice_error = prefix_with_line_numbers(raw_contents, min_line, max_line)
 
-    return YAML_ERROR_MESSAGE.format(
-        line_number=mark.line + 1, nice_error=nice_error, raw_error=error
-    )
+    return YAML_ERROR_MESSAGE.format(line_number=mark.line + 1,
+                                     nice_error=nice_error,
+                                     raw_error=error)
 
 
-def safe_load(contents):
+def safe_load(contents) -> Optional[Dict[str, Any]]:
     return yaml.load(contents, Loader=SafeLoader)
 
 
@@ -58,7 +63,7 @@ def load_yaml_text(contents):
     try:
         return safe_load(contents)
     except (yaml.scanner.ScannerError, yaml.YAMLError) as e:
-        if hasattr(e, "problem_mark"):
+        if hasattr(e, 'problem_mark'):
             error = contextualized_yaml_error(contents, e)
         else:
             error = str(e)

core/dbt/compilation.py

@@ -3,18 +3,18 @@ from collections import defaultdict
 from typing import List, Dict, Any, Tuple, cast, Optional
 
 import networkx as nx  # type: ignore
+import pickle
 import sqlparse
 
 from dbt import flags
 from dbt.adapters.factory import get_adapter
 from dbt.clients import jinja
 from dbt.clients.system import make_directory
-from dbt.context.providers import generate_runtime_model
-from dbt.contracts.graph.manifest import Manifest
+from dbt.context.providers import generate_runtime_model_context
+from dbt.contracts.graph.manifest import Manifest, UniqueID
 from dbt.contracts.graph.compiled import (
-    CompiledDataTestNode,
-    CompiledSchemaTestNode,
     COMPILED_TYPES,
+    CompiledGenericTestNode,
     GraphMemberNode,
     InjectedCTE,
     ManifestNode,
@@ -27,33 +27,35 @@ from dbt.exceptions import (
     RuntimeException,
 )
 from dbt.graph import Graph
-from dbt.logger import GLOBAL_LOGGER as logger
+from dbt.events.functions import fire_event
+from dbt.events.types import FoundStats, CompilingNode, WritingInjectedSQLForNode
 from dbt.node_types import NodeType
-from dbt.utils import pluralize
+from dbt.events.format import pluralize
 import dbt.tracking
 
-graph_file_name = "graph.gpickle"
+graph_file_name = 'graph.gpickle'
 
 
 def _compiled_type_for(model: ParsedNode):
     if type(model) not in COMPILED_TYPES:
         raise InternalException(
-            f"Asked to compile {type(model)} node, but it has no compiled form"
+            f'Asked to compile {type(model)} node, but it has no compiled form'
         )
     return COMPILED_TYPES[type(model)]
 
 
 def print_compile_stats(stats):
     names = {
-        NodeType.Model: "model",
-        NodeType.Test: "test",
-        NodeType.Snapshot: "snapshot",
-        NodeType.Analysis: "analysis",
-        NodeType.Macro: "macro",
-        NodeType.Operation: "operation",
-        NodeType.Seed: "seed file",
-        NodeType.Source: "source",
-        NodeType.Exposure: "exposure",
+        NodeType.Model: 'model',
+        NodeType.Test: 'test',
+        NodeType.Snapshot: 'snapshot',
+        NodeType.Analysis: 'analysis',
+        NodeType.Macro: 'macro',
+        NodeType.Operation: 'operation',
+        NodeType.Seed: 'seed file',
+        NodeType.Source: 'source',
+        NodeType.Exposure: 'exposure',
+        NodeType.Metric: 'metric'
     }
 
     results = {k: 0 for k in names.keys()}
@@ -64,11 +66,12 @@ def print_compile_stats(stats):
         resource_counts = {k.pluralize(): v for k, v in results.items()}
         dbt.tracking.track_resource_counts(resource_counts)
 
-    stat_line = ", ".join(
-        [pluralize(ct, names.get(t)) for t, ct in results.items() if t in names]
-    )
+    stat_line = ", ".join([
+        pluralize(ct, names.get(t)) for t, ct in results.items()
+        if t in names
+    ])
 
-    logger.info("Found {}".format(stat_line))
+    fire_event(FoundStats(stat_line=stat_line))
 
 
 def _node_enabled(node: ManifestNode):
@@ -89,6 +92,8 @@ def _generate_stats(manifest: Manifest):
         stats[source.resource_type] += 1
     for exposure in manifest.exposures.values():
         stats[exposure.resource_type] += 1
+    for metric in manifest.metrics.values():
+        stats[metric.resource_type] += 1
     for macro in manifest.macros.values():
         stats[macro.resource_type] += 1
     return stats
@@ -107,6 +112,19 @@ def _extend_prepended_ctes(prepended_ctes, new_prepended_ctes):
         _add_prepended_cte(prepended_ctes, new_cte)
 
 
+def _get_tests_for_node(manifest: Manifest, unique_id: UniqueID) -> List[UniqueID]:
+    """ Get a list of tests that depend on the node with the
+    provided unique id """
+
+    tests = []
+    if unique_id in manifest.child_map:
+        for child_unique_id in manifest.child_map[unique_id]:
+            if child_unique_id.startswith('test.'):
+                tests.append(child_unique_id)
+
+    return tests
+
+
 class Linker:
     def __init__(self, data=None):
         if data is None:
@@ -142,10 +160,11 @@ class Linker:
         include all nodes in their corresponding graph entries.
         """
         out_graph = self.graph.copy()
-        for node_id in self.graph.nodes():
+        for node_id in self.graph:
             data = manifest.expect(node_id).to_dict(omit_none=True)
             out_graph.add_node(node_id, **data)
-        nx.write_gpickle(out_graph, outfile)
+        with open(outfile, 'wb') as outfh:
+            pickle.dump(out_graph, outfh, protocol=pickle.HIGHEST_PROTOCOL)
 
 
 class Compiler:
@@ -154,7 +173,7 @@ class Compiler:
 
     def initialize(self):
         make_directory(self.config.target_path)
-        make_directory(self.config.modules_path)
+        make_directory(self.config.packages_install_path)
 
     # creates a ModelContext which is converted to
     # a dict for jinja rendering of SQL
@@ -165,9 +184,11 @@ class Compiler:
         extra_context: Dict[str, Any],
     ) -> Dict[str, Any]:
 
-        context = generate_runtime_model(node, self.config, manifest)
+        context = generate_runtime_model_context(
+            node, self.config, manifest
+        )
         context.update(extra_context)
-        if isinstance(node, CompiledSchemaTestNode):
+        if isinstance(node, CompiledGenericTestNode):
             # for test nodes, add a special keyword args value to the context
             jinja.add_rendered_test_kwargs(context, node)
 
@@ -180,7 +201,7 @@ class Compiler:
 
     def _get_relation_name(self, node: ParsedNode):
         relation_name = None
-        if node.resource_type in NodeType.refable() and not node.is_ephemeral_model:
+        if node.is_relational and not node.is_ephemeral_model:
             adapter = get_adapter(self.config)
             relation_cls = adapter.Relation
             relation_name = str(relation_cls.create_from(self.config, node))
@@ -223,45 +244,47 @@ class Compiler:
 
         with_stmt = None
         for token in parsed.tokens:
-            if token.is_keyword and token.normalized == "WITH":
+            if token.is_keyword and token.normalized == 'WITH':
                 with_stmt = token
                 break
 
         if with_stmt is None:
             # no with stmt, add one, and inject CTEs right at the beginning
             first_token = parsed.token_first()
-            with_stmt = sqlparse.sql.Token(sqlparse.tokens.Keyword, "with")
+            with_stmt = sqlparse.sql.Token(sqlparse.tokens.Keyword, 'with')
             parsed.insert_before(first_token, with_stmt)
         else:
             # stmt exists, add a comma (which will come after injected CTEs)
-            trailing_comma = sqlparse.sql.Token(sqlparse.tokens.Punctuation, ",")
+            trailing_comma = sqlparse.sql.Token(
+                sqlparse.tokens.Punctuation, ','
+            )
             parsed.insert_after(with_stmt, trailing_comma)
 
         token = sqlparse.sql.Token(
-            sqlparse.tokens.Keyword, ", ".join(c.sql for c in ctes)
+            sqlparse.tokens.Keyword,
+            ", ".join(c.sql for c in ctes)
         )
         parsed.insert_after(with_stmt, token)
 
         return str(parsed)
 
-    def _get_dbt_test_name(self) -> str:
-        return "dbt__cte__internal_test"
-
-    # This method is called by the 'compile_node' method. Starting
-    # from the node that it is passed in, it will recursively call
-    # itself using the 'extra_ctes'.  The 'ephemeral' models do
-    # not produce SQL that is executed directly, instead they
-    # are rolled up into the models that refer to them by
-    # inserting CTEs into the SQL.
     def _recursively_prepend_ctes(
         self,
         model: NonSourceCompiledNode,
         manifest: Manifest,
         extra_context: Optional[Dict[str, Any]],
     ) -> Tuple[NonSourceCompiledNode, List[InjectedCTE]]:
-
+        """This method is called by the 'compile_node' method. Starting
+        from the node that it is passed in, it will recursively call
+        itself using the 'extra_ctes'.  The 'ephemeral' models do
+        not produce SQL that is executed directly, instead they
+        are rolled up into the models that refer to them by
+        inserting CTEs into the SQL.
+        """
         if model.compiled_sql is None:
-            raise RuntimeException("Cannot inject ctes into an unparsed node", model)
+            raise RuntimeException(
+                'Cannot inject ctes into an unparsed node', model
+            )
         if model.extra_ctes_injected:
             return (model, model.extra_ctes)
 
@@ -275,62 +298,59 @@ class Compiler:
         # gathered and then "injected" into the model.
         prepended_ctes: List[InjectedCTE] = []
 
-        dbt_test_name = self._get_dbt_test_name()
-
         # extra_ctes are added to the model by
         # RuntimeRefResolver.create_relation, which adds an
         # extra_cte for every model relation which is an
         # ephemeral model.
         for cte in model.extra_ctes:
-            if cte.id == dbt_test_name:
-                sql = cte.sql
+            if cte.id not in manifest.nodes:
+                raise InternalException(
+                    f'During compilation, found a cte reference that '
+                    f'could not be resolved: {cte.id}'
+                )
+            cte_model = manifest.nodes[cte.id]
+
+            if not cte_model.is_ephemeral_model:
+                raise InternalException(f'{cte.id} is not ephemeral')
+
+            # This model has already been compiled, so it's been
+            # through here before
+            if getattr(cte_model, 'compiled', False):
+                assert isinstance(cte_model, tuple(COMPILED_TYPES.values()))
+                cte_model = cast(NonSourceCompiledNode, cte_model)
+                new_prepended_ctes = cte_model.extra_ctes
+
+            # if the cte_model isn't compiled, i.e. first time here
             else:
-                if cte.id not in manifest.nodes:
-                    raise InternalException(
-                        f"During compilation, found a cte reference that "
-                        f"could not be resolved: {cte.id}"
-                    )
-                cte_model = manifest.nodes[cte.id]
-
-                if not cte_model.is_ephemeral_model:
-                    raise InternalException(f"{cte.id} is not ephemeral")
-
-                # This model has already been compiled, so it's been
-                # through here before
-                if getattr(cte_model, "compiled", False):
-                    assert isinstance(cte_model, tuple(COMPILED_TYPES.values()))
-                    cte_model = cast(NonSourceCompiledNode, cte_model)
-                    new_prepended_ctes = cte_model.extra_ctes
-
-                # if the cte_model isn't compiled, i.e. first time here
-                else:
-                    # This is an ephemeral parsed model that we can compile.
-                    # Compile and update the node
-                    cte_model = self._compile_node(cte_model, manifest, extra_context)
-                    # recursively call this method
-                    cte_model, new_prepended_ctes = self._recursively_prepend_ctes(
+                # This is an ephemeral parsed model that we can compile.
+                # Compile and update the node
+                cte_model = self._compile_node(
+                    cte_model, manifest, extra_context)
+                # recursively call this method
+                cte_model, new_prepended_ctes = \
+                    self._recursively_prepend_ctes(
                         cte_model, manifest, extra_context
                     )
-                    # Save compiled SQL file and sync manifest
-                    self._write_node(cte_model)
-                    manifest.sync_update_node(cte_model)
+                # Save compiled SQL file and sync manifest
+                self._write_node(cte_model)
+                manifest.sync_update_node(cte_model)
 
-                _extend_prepended_ctes(prepended_ctes, new_prepended_ctes)
+            _extend_prepended_ctes(prepended_ctes, new_prepended_ctes)
 
-                new_cte_name = self.add_ephemeral_prefix(cte_model.name)
-                sql = f" {new_cte_name} as (\n{cte_model.compiled_sql}\n)"
+            new_cte_name = self.add_ephemeral_prefix(cte_model.name)
+            rendered_sql = (
+                cte_model._pre_injected_sql or cte_model.compiled_sql
+            )
+            sql = f' {new_cte_name} as (\n{rendered_sql}\n)'
 
             _add_prepended_cte(prepended_ctes, InjectedCTE(id=cte.id, sql=sql))
 
-        # We don't save injected_sql into compiled sql for ephemeral models
-        # because it will cause problems with processing of subsequent models.
-        # Ephemeral models do not produce executable SQL of their own.
-        if not model.is_ephemeral_model:
-            injected_sql = self._inject_ctes_into_sql(
-                model.compiled_sql,
-                prepended_ctes,
-            )
-            model.compiled_sql = injected_sql
+        injected_sql = self._inject_ctes_into_sql(
+            model.compiled_sql,
+            prepended_ctes,
+        )
+        model._pre_injected_sql = model.compiled_sql
+        model.compiled_sql = injected_sql
         model.extra_ctes_injected = True
         model.extra_ctes = prepended_ctes
         model.validate(model.to_dict(omit_none=True))
@@ -339,33 +359,6 @@ class Compiler:
 
         return model, prepended_ctes
 
-    def _add_ctes(
-        self,
-        compiled_node: NonSourceCompiledNode,
-        manifest: Manifest,
-        extra_context: Dict[str, Any],
-    ) -> NonSourceCompiledNode:
-        """Wrap the data test SQL in a CTE."""
-
-        # for data tests, we need to insert a special CTE at the end of the
-        # list containing the test query, and then have the "real" query be a
-        # select count(*) from that model.
-        # the benefit of doing it this way is that _add_ctes() can be
-        # rewritten for different adapters to handle databases that don't
-        # support CTEs, or at least don't have full support.
-        if isinstance(compiled_node, CompiledDataTestNode):
-            # the last prepend (so last in order) should be the data test body.
-            # then we can add our select count(*) from _that_ cte as the "real"
-            # compiled_sql, and do the regular prepend logic from CTEs.
-            name = self._get_dbt_test_name()
-            cte = InjectedCTE(
-                id=name, sql=f" {name} as (\n{compiled_node.compiled_sql}\n)"
-            )
-            compiled_node.extra_ctes.append(cte)
-            compiled_node.compiled_sql = f"\nselect count(*) from {name}"
-
-        return compiled_node
-
     # creates a compiled_node from the ManifestNode passed in,
     # creates a "context" dictionary for jinja rendering,
     # and then renders the "compiled_sql" using the node, the
@@ -379,20 +372,20 @@ class Compiler:
         if extra_context is None:
             extra_context = {}
 
-        logger.debug("Compiling {}".format(node.unique_id))
+        fire_event(CompilingNode(unique_id=node.unique_id))
 
         data = node.to_dict(omit_none=True)
-        data.update(
-            {
-                "compiled": False,
-                "compiled_sql": None,
-                "extra_ctes_injected": False,
-                "extra_ctes": [],
-            }
-        )
+        data.update({
+            'compiled': False,
+            'compiled_sql': None,
+            'extra_ctes_injected': False,
+            'extra_ctes': [],
+        })
         compiled_node = _compiled_type_for(node).from_dict(data)
 
-        context = self._create_node_context(compiled_node, manifest, extra_context)
+        context = self._create_node_context(
+            compiled_node, manifest, extra_context
+        )
 
         compiled_node.compiled_sql = jinja.get_rendered(
             node.raw_sql,
@@ -404,10 +397,6 @@ class Compiler:
 
         compiled_node.compiled = True
 
-        # add ctes for specific test nodes, and also for
-        # possible future use in adapters
-        compiled_node = self._add_ctes(compiled_node, manifest, extra_context)
-
         return compiled_node
 
     def write_graph_file(self, linker: Linker, manifest: Manifest):
@@ -416,40 +405,113 @@ class Compiler:
         if flags.WRITE_JSON:
             linker.write_graph(graph_path, manifest)
 
-    def link_node(self, linker: Linker, node: GraphMemberNode, manifest: Manifest):
+    def link_node(
+        self, linker: Linker, node: GraphMemberNode, manifest: Manifest
+    ):
         linker.add_node(node.unique_id)
 
         for dependency in node.depends_on_nodes:
             if dependency in manifest.nodes:
                 linker.dependency(
-                    node.unique_id, (manifest.nodes[dependency].unique_id)
+                    node.unique_id,
+                    (manifest.nodes[dependency].unique_id)
                 )
             elif dependency in manifest.sources:
                 linker.dependency(
-                    node.unique_id, (manifest.sources[dependency].unique_id)
+                    node.unique_id,
+                    (manifest.sources[dependency].unique_id)
                 )
             else:
                 dependency_not_found(node, dependency)
 
-    def link_graph(self, linker: Linker, manifest: Manifest):
+    def link_graph(self, linker: Linker, manifest: Manifest, add_test_edges: bool = False):
         for source in manifest.sources.values():
             linker.add_node(source.unique_id)
         for node in manifest.nodes.values():
             self.link_node(linker, node, manifest)
         for exposure in manifest.exposures.values():
             self.link_node(linker, exposure, manifest)
-            # linker.add_node(exposure.unique_id)
+        for metric in manifest.metrics.values():
+            self.link_node(linker, metric, manifest)
 
         cycle = linker.find_cycles()
 
         if cycle:
             raise RuntimeError("Found a cycle: {}".format(cycle))
 
-    def compile(self, manifest: Manifest, write=True) -> Graph:
+        if add_test_edges:
+            manifest.build_parent_and_child_maps()
+            self.add_test_edges(linker, manifest)
+
+    def add_test_edges(self, linker: Linker, manifest: Manifest) -> None:
+        """ This method adds additional edges to the DAG. For a given non-test
+        executable node, add an edge from an upstream test to the given node if
+        the set of nodes the test depends on is a subset of the upstream nodes
+        for the given node. """
+
+        # Given a graph:
+        # model1 --> model2 --> model3
+        #   |             |
+        #   |            \/
+        #  \/          test 2
+        # test1
+        #
+        # Produce the following graph:
+        # model1 --> model2 --> model3
+        #   |       /\    |      /\ /\
+        #   |       |    \/      |  |
+        #  \/       |  test2 ----|  |
+        # test1 ----|---------------|
+
+        for node_id in linker.graph:
+            # If node is executable (in manifest.nodes) and does _not_
+            # represent a test, continue.
+            if (
+                node_id in manifest.nodes and
+                manifest.nodes[node_id].resource_type != NodeType.Test
+            ):
+                # Get *everything* upstream of the node
+                all_upstream_nodes = nx.traversal.bfs_tree(
+                    linker.graph, node_id, reverse=True
+                )
+                # Get the set of upstream nodes not including the current node.
+                upstream_nodes = set([
+                    n for n in all_upstream_nodes if n != node_id
+                ])
+
+                # Get all tests that depend on any upstream nodes.
+                upstream_tests = []
+                for upstream_node in upstream_nodes:
+                    upstream_tests += _get_tests_for_node(
+                        manifest,
+                        upstream_node
+                    )
+
+                for upstream_test in upstream_tests:
+                    # Get the set of all nodes that the test depends on
+                    # including the upstream_node itself. This is necessary
+                    # because tests can depend on multiple nodes (ex:
+                    # relationship tests). Test nodes do not distinguish
+                    # between what node the test is "testing" and what
+                    # node(s) it depends on.
+                    test_depends_on = set(
+                        manifest.nodes[upstream_test].depends_on_nodes
+                    )
+
+                    # If the set of nodes that an upstream test depends on
+                    # is a subset of all upstream nodes of the current node,
+                    # add an edge from the upstream test to the current node.
+                    if (test_depends_on.issubset(upstream_nodes)):
+                        linker.graph.add_edge(
+                            upstream_test,
+                            node_id
+                        )
+
+    def compile(self, manifest: Manifest, write=True, add_test_edges=False) -> Graph:
         self.initialize()
         linker = Linker()
 
-        self.link_graph(linker, manifest)
+        self.link_graph(linker, manifest, add_test_edges)
 
         stats = _generate_stats(manifest)
 
@@ -461,21 +523,19 @@ class Compiler:
 
     # writes the "compiled_sql" into the target/compiled directory
     def _write_node(self, node: NonSourceCompiledNode) -> ManifestNode:
-        if not node.extra_ctes_injected or node.resource_type == NodeType.Snapshot:
+        if (not node.extra_ctes_injected or
+                node.resource_type == NodeType.Snapshot):
             return node
-        logger.debug(f'Writing injected SQL for node "{node.unique_id}"')
+        fire_event(WritingInjectedSQLForNode(unique_id=node.unique_id))
 
         if node.compiled_sql:
-            node.build_path = node.write_node(
-                self.config.target_path, "compiled", node.compiled_sql
+            node.compiled_path = node.write_node(
+                self.config.target_path,
+                'compiled',
+                node.compiled_sql
             )
         return node
 
-    # This is the main entry point into this code. It's called by
-    # CompileRunner.compile, GenericRPCRunner.compile, and
-    # RunTask.get_hook_sql. It calls '_compile_node' to convert
-    # the node into a compiled node, and then calls the
-    # recursive method to "prepend" the ctes.
     def compile_node(
         self,
         node: ManifestNode,
@@ -483,9 +543,17 @@ class Compiler:
         extra_context: Optional[Dict[str, Any]] = None,
         write: bool = True,
     ) -> NonSourceCompiledNode:
+        """This is the main entry point into this code. It's called by
+        CompileRunner.compile, GenericRPCRunner.compile, and
+        RunTask.get_hook_sql. It calls '_compile_node' to convert
+        the node into a compiled node, and then calls the
+        recursive method to "prepend" the ctes.
+        """
         node = self._compile_node(node, manifest, extra_context)
 
-        node, _ = self._recursively_prepend_ctes(node, manifest, extra_context)
+        node, _ = self._recursively_prepend_ctes(
+            node, manifest, extra_context
+        )
         if write:
             self._write_node(node)
         return node

core/dbt/config/README.md

@@ -0,0 +1 @@
+# Config README

core/dbt/config/__init__.py

@@ -1,4 +1,4 @@
 # all these are just exports, they need "noqa" so flake8 will not complain.
-from .profile import Profile, PROFILES_DIR, read_user_config  # noqa
+from .profile import Profile, read_user_config  # noqa
 from .project import Project, IsFQNResource  # noqa
 from .runtime import RuntimeConfig, UnsetProfileConfig  # noqa

core/dbt/config/profile.py

@@ -4,6 +4,7 @@ import os
 
 from dbt.dataclass_schema import ValidationError
 
+from dbt import flags
 from dbt.clients.system import load_file_contents
 from dbt.clients.yaml_helper import load_yaml_text
 from dbt.contracts.connection import Credentials, HasCredentials
@@ -14,14 +15,15 @@ from dbt.exceptions import DbtProjectError
 from dbt.exceptions import ValidationException
 from dbt.exceptions import RuntimeException
 from dbt.exceptions import validator_error_message
-from dbt.logger import GLOBAL_LOGGER as logger
+from dbt.events.types import MissingProfileTarget
+from dbt.events.functions import fire_event
 from dbt.utils import coerce_dict_str
 
 from .renderer import ProfileRenderer
 
 DEFAULT_THREADS = 1
-DEFAULT_PROFILES_DIR = os.path.join(os.path.expanduser("~"), ".dbt")
-PROFILES_DIR = os.path.expanduser(os.getenv("DBT_PROFILES_DIR", DEFAULT_PROFILES_DIR))
+
+DEFAULT_PROFILES_DIR = os.path.join(os.path.expanduser('~'), '.dbt')
 
 INVALID_PROFILE_MESSAGE = """
 dbt encountered an error while trying to read your profiles.yml file.
@@ -41,13 +43,11 @@ Here, [profile name] should be replaced with a profile name
 defined in your profiles.yml file. You can find profiles.yml here:
 
 {profiles_file}/profiles.yml
-""".format(
-    profiles_file=PROFILES_DIR
-)
+""".format(profiles_file=DEFAULT_PROFILES_DIR)
 
 
 def read_profile(profiles_dir: str) -> Dict[str, Any]:
-    path = os.path.join(profiles_dir, "profiles.yml")
+    path = os.path.join(profiles_dir, 'profiles.yml')
 
     contents = None
     if os.path.isfile(path):
@@ -55,8 +55,12 @@ def read_profile(profiles_dir: str) -> Dict[str, Any]:
             contents = load_file_contents(path, strip=False)
             yaml_content = load_yaml_text(contents)
             if not yaml_content:
-                msg = f"The profiles.yml file at {path} is empty"
-                raise DbtProfileError(INVALID_PROFILE_MESSAGE.format(error_string=msg))
+                msg = f'The profiles.yml file at {path} is empty'
+                raise DbtProfileError(
+                    INVALID_PROFILE_MESSAGE.format(
+                        error_string=msg
+                    )
+                )
             return yaml_content
         except ValidationException as e:
             msg = INVALID_PROFILE_MESSAGE.format(error_string=e)
@@ -69,10 +73,10 @@ def read_user_config(directory: str) -> UserConfig:
     try:
         profile = read_profile(directory)
         if profile:
-            user_cfg = coerce_dict_str(profile.get("config", {}))
-            if user_cfg is not None:
-                UserConfig.validate(user_cfg)
-                return UserConfig.from_dict(user_cfg)
+            user_config = coerce_dict_str(profile.get('config', {}))
+            if user_config is not None:
+                UserConfig.validate(user_config)
+                return UserConfig.from_dict(user_config)
     except (RuntimeException, ValidationError):
         pass
     return UserConfig()
@@ -80,15 +84,37 @@ def read_user_config(directory: str) -> UserConfig:
 
 # The Profile class is included in RuntimeConfig, so any attribute
 # additions must also be set where the RuntimeConfig class is created
-@dataclass
+# `init=False` is a workaround for https://bugs.python.org/issue45081
+@dataclass(init=False)
 class Profile(HasCredentials):
     profile_name: str
     target_name: str
-    config: UserConfig
+    user_config: UserConfig
     threads: int
     credentials: Credentials
+    profile_env_vars: Dict[str, Any]
 
-    def to_profile_info(self, serialize_credentials: bool = False) -> Dict[str, Any]:
+    def __init__(
+        self,
+        profile_name: str,
+        target_name: str,
+        user_config: UserConfig,
+        threads: int,
+        credentials: Credentials
+    ):
+        """Explicitly defining `__init__` to work around bug in Python 3.9.7
+        https://bugs.python.org/issue45081
+        """
+        self.profile_name = profile_name
+        self.target_name = target_name
+        self.user_config = user_config
+        self.threads = threads
+        self.credentials = credentials
+        self.profile_env_vars = {}  # never available on init
+
+    def to_profile_info(
+        self, serialize_credentials: bool = False
+    ) -> Dict[str, Any]:
         """Unlike to_project_config, this dict is not a mirror of any existing
         on-disk data structure. It's used when creating a new profile from an
         existing one.
@@ -98,35 +124,34 @@ class Profile(HasCredentials):
         :returns dict: The serialized profile.
         """
         result = {
-            "profile_name": self.profile_name,
-            "target_name": self.target_name,
-            "config": self.config,
-            "threads": self.threads,
-            "credentials": self.credentials,
+            'profile_name': self.profile_name,
+            'target_name': self.target_name,
+            'user_config': self.user_config,
+            'threads': self.threads,
+            'credentials': self.credentials,
         }
         if serialize_credentials:
-            result["config"] = self.config.to_dict(omit_none=True)
-            result["credentials"] = self.credentials.to_dict(omit_none=True)
+            result['user_config'] = self.user_config.to_dict(omit_none=True)
+            result['credentials'] = self.credentials.to_dict(omit_none=True)
         return result
 
     def to_target_dict(self) -> Dict[str, Any]:
-        target = dict(self.credentials.connection_info(with_aliases=True))
-        target.update(
-            {
-                "type": self.credentials.type,
-                "threads": self.threads,
-                "name": self.target_name,
-                "target_name": self.target_name,
-                "profile_name": self.profile_name,
-                "config": self.config.to_dict(omit_none=True),
-            }
+        target = dict(
+            self.credentials.connection_info(with_aliases=True)
         )
+        target.update({
+            'type': self.credentials.type,
+            'threads': self.threads,
+            'name': self.target_name,
+            'target_name': self.target_name,
+            'profile_name': self.profile_name,
+            'config': self.user_config.to_dict(omit_none=True),
+        })
         return target
 
     def __eq__(self, other: object) -> bool:
-        if not (
-            isinstance(other, self.__class__) and isinstance(self, other.__class__)
-        ):
+        if not (isinstance(other, self.__class__) and
+                isinstance(self, other.__class__)):
             return NotImplemented
         return self.to_profile_info() == other.to_profile_info()
 
@@ -146,17 +171,14 @@ class Profile(HasCredentials):
     ) -> Credentials:
         # avoid an import cycle
         from dbt.adapters.factory import load_plugin
-
         # credentials carry their 'type' in their actual type, not their
         # attributes. We do want this in order to pick our Credentials class.
-        if "type" not in profile:
+        if 'type' not in profile:
             raise DbtProfileError(
-                'required field "type" not found in profile {} and target {}'.format(
-                    profile_name, target_name
-                )
-            )
+                'required field "type" not found in profile {} and target {}'
+                .format(profile_name, target_name))
 
-        typename = profile.pop("type")
+        typename = profile.pop('type')
         try:
             cls = load_plugin(typename)
             data = cls.translate_aliases(profile)
@@ -165,9 +187,8 @@ class Profile(HasCredentials):
         except (RuntimeException, ValidationError) as e:
             msg = str(e) if isinstance(e, RuntimeException) else e.message
             raise DbtProfileError(
-                'Credentials in profile "{}", target "{}" invalid: {}'.format(
-                    profile_name, target_name, msg
-                )
+                'Credentials in profile "{}", target "{}" invalid: {}'
+                .format(profile_name, target_name, msg)
             ) from e
 
         return credentials
@@ -188,21 +209,19 @@ class Profile(HasCredentials):
     def _get_profile_data(
         profile: Dict[str, Any], profile_name: str, target_name: str
     ) -> Dict[str, Any]:
-        if "outputs" not in profile:
+        if 'outputs' not in profile:
             raise DbtProfileError(
                 "outputs not specified in profile '{}'".format(profile_name)
             )
-        outputs = profile["outputs"]
+        outputs = profile['outputs']
 
         if target_name not in outputs:
-            outputs = "\n".join(" - {}".format(output) for output in outputs)
-            msg = (
-                "The profile '{}' does not have a target named '{}'. The "
-                "valid target names for this profile are:\n{}".format(
-                    profile_name, target_name, outputs
-                )
-            )
-            raise DbtProfileError(msg, result_type="invalid_target")
+            outputs = '\n'.join(' - {}'.format(output)
+                                for output in outputs)
+            msg = ("The profile '{}' does not have a target named '{}'. The "
+                   "valid target names for this profile are:\n{}"
+                   .format(profile_name, target_name, outputs))
+            raise DbtProfileError(msg, result_type='invalid_target')
         profile_data = outputs[target_name]
 
         if not isinstance(profile_data, dict):
@@ -210,7 +229,7 @@ class Profile(HasCredentials):
                 f"output '{target_name}' of profile '{profile_name}' is "
                 f"misconfigured in profiles.yml"
             )
-            raise DbtProfileError(msg, result_type="invalid_target")
+            raise DbtProfileError(msg, result_type='invalid_target')
 
         return profile_data
 
@@ -221,8 +240,8 @@ class Profile(HasCredentials):
         threads: int,
         profile_name: str,
         target_name: str,
-        user_cfg: Optional[Dict[str, Any]] = None,
-    ) -> "Profile":
+        user_config: Optional[Dict[str, Any]] = None
+    ) -> 'Profile':
         """Create a profile from an existing set of Credentials and the
         remaining information.
 
@@ -230,22 +249,22 @@ class Profile(HasCredentials):
         :param threads: The number of threads to use for connections.
         :param profile_name: The profile name used for this profile.
         :param target_name: The target name used for this profile.
-        :param user_cfg: The user-level config block from the
+        :param user_config: The user-level config block from the
             raw profiles, if specified.
         :raises DbtProfileError: If the profile is invalid.
         :returns: The new Profile object.
         """
-        if user_cfg is None:
-            user_cfg = {}
-        UserConfig.validate(user_cfg)
-        config = UserConfig.from_dict(user_cfg)
+        if user_config is None:
+            user_config = {}
+        UserConfig.validate(user_config)
+        user_config_obj: UserConfig = UserConfig.from_dict(user_config)
 
         profile = cls(
             profile_name=profile_name,
             target_name=target_name,
-            config=config,
+            user_config=user_config_obj,
             threads=threads,
-            credentials=credentials,
+            credentials=credentials
         )
         profile.validate()
         return profile
@@ -270,18 +289,16 @@ class Profile(HasCredentials):
         # name to extract a profile that we can render.
         if target_override is not None:
             target_name = target_override
-        elif "target" in raw_profile:
+        elif 'target' in raw_profile:
             # render the target if it was parsed from yaml
-            target_name = renderer.render_value(raw_profile["target"])
+            target_name = renderer.render_value(raw_profile['target'])
         else:
-            target_name = "default"
-            logger.debug(
-                "target not specified in profile '{}', using '{}'".format(
-                    profile_name, target_name
-                )
-            )
+            target_name = 'default'
+            fire_event(MissingProfileTarget(profile_name=profile_name, target_name=target_name))
 
-        raw_profile_data = cls._get_profile_data(raw_profile, profile_name, target_name)
+        raw_profile_data = cls._get_profile_data(
+            raw_profile, profile_name, target_name
+        )
 
         try:
             profile_data = renderer.render_data(raw_profile_data)
@@ -295,10 +312,10 @@ class Profile(HasCredentials):
         raw_profile: Dict[str, Any],
         profile_name: str,
         renderer: ProfileRenderer,
-        user_cfg: Optional[Dict[str, Any]] = None,
+        user_config: Optional[Dict[str, Any]] = None,
         target_override: Optional[str] = None,
         threads_override: Optional[int] = None,
-    ) -> "Profile":
+    ) -> 'Profile':
         """Create a profile from its raw profile information.
 
          (this is an intermediate step, mostly useful for unit testing)
@@ -307,7 +324,7 @@ class Profile(HasCredentials):
             disk as yaml and its values rendered with jinja.
         :param profile_name: The profile name used.
         :param renderer: The config renderer.
-        :param user_cfg: The global config for the user, if it
+        :param user_config: The global config for the user, if it
             was present.
         :param target_override: The target to use, if provided on
             the command line.
@@ -317,9 +334,9 @@ class Profile(HasCredentials):
             target could not be found
         :returns: The new Profile object.
         """
-        # user_cfg is not rendered.
-        if user_cfg is None:
-            user_cfg = raw_profile.get("config")
+        # user_config is not rendered.
+        if user_config is None:
+            user_config = raw_profile.get('config')
         # TODO: should it be, and the values coerced to bool?
         target_name, profile_data = cls.render_profile(
             raw_profile, profile_name, target_override, renderer
@@ -327,7 +344,7 @@ class Profile(HasCredentials):
 
         # valid connections never include the number of threads, but it's
         # stored on a per-connection level in the raw configs
-        threads = profile_data.pop("threads", DEFAULT_THREADS)
+        threads = profile_data.pop('threads', DEFAULT_THREADS)
         if threads_override is not None:
             threads = threads_override
 
@@ -340,7 +357,7 @@ class Profile(HasCredentials):
             profile_name=profile_name,
             target_name=target_name,
             threads=threads,
-            user_cfg=user_cfg,
+            user_config=user_config
         )
 
     @classmethod
@@ -351,7 +368,7 @@ class Profile(HasCredentials):
         renderer: ProfileRenderer,
         target_override: Optional[str] = None,
         threads_override: Optional[int] = None,
-    ) -> "Profile":
+    ) -> 'Profile':
         """
         :param raw_profiles: The profile data, from disk as yaml.
         :param profile_name: The profile name to use.
@@ -375,15 +392,21 @@ class Profile(HasCredentials):
         # don't render keys, so we can pluck that out
         raw_profile = raw_profiles[profile_name]
         if not raw_profile:
-            msg = f"Profile {profile_name} in profiles.yml is empty"
-            raise DbtProfileError(INVALID_PROFILE_MESSAGE.format(error_string=msg))
-        user_cfg = raw_profiles.get("config")
+            msg = (
+                f'Profile {profile_name} in profiles.yml is empty'
+            )
+            raise DbtProfileError(
+                INVALID_PROFILE_MESSAGE.format(
+                    error_string=msg
+                )
+            )
+        user_config = raw_profiles.get('config')
 
         return cls.from_raw_profile_info(
             raw_profile=raw_profile,
             profile_name=profile_name,
             renderer=renderer,
-            user_cfg=user_cfg,
+            user_config=user_config,
             target_override=target_override,
             threads_override=threads_override,
         )
@@ -394,7 +417,7 @@ class Profile(HasCredentials):
         args: Any,
         renderer: ProfileRenderer,
         project_profile_name: Optional[str],
-    ) -> "Profile":
+    ) -> 'Profile':
         """Given the raw profiles as read from disk and the name of the desired
         profile if specified, return the profile component of the runtime
         config.
@@ -409,16 +432,15 @@ class Profile(HasCredentials):
             target could not be found.
         :returns Profile: The new Profile object.
         """
-        threads_override = getattr(args, "threads", None)
-        target_override = getattr(args, "target", None)
-        raw_profiles = read_profile(args.profiles_dir)
-        profile_name = cls.pick_profile_name(
-            getattr(args, "profile", None), project_profile_name
-        )
+        threads_override = getattr(args, 'threads', None)
+        target_override = getattr(args, 'target', None)
+        raw_profiles = read_profile(flags.PROFILES_DIR)
+        profile_name = cls.pick_profile_name(getattr(args, 'profile', None),
+                                             project_profile_name)
         return cls.from_raw_profiles(
             raw_profiles=raw_profiles,
             profile_name=profile_name,
             renderer=renderer,
             target_override=target_override,
-            threads_override=threads_override,
+            threads_override=threads_override
         )

core/dbt/config/project.py

@@ -2,19 +2,14 @@ from copy import deepcopy
 from dataclasses import dataclass, field
 from itertools import chain
 from typing import (
-    List,
-    Dict,
-    Any,
-    Optional,
-    TypeVar,
-    Union,
-    Mapping,
+    List, Dict, Any, Optional, TypeVar, Union, Mapping,
 )
 from typing_extensions import Protocol, runtime_checkable
 
 import hashlib
 import os
 
+from dbt import deprecations
 from dbt.clients.system import resolve_path_from_base
 from dbt.clients.system import path_exists
 from dbt.clients.system import load_file_contents
@@ -50,7 +45,7 @@ INVALID_VERSION_ERROR = """\
 This version of dbt is not supported with the '{package}' package.
   Installed version of dbt: {installed}
   Required version of dbt for '{package}': {version_spec}
-Check the requirements for the '{package}' package, or run dbt again with \
+Check for a different version of the '{package}' package, or run dbt again with \
 --no-version-check
 """
 
@@ -59,7 +54,7 @@ IMPOSSIBLE_VERSION_ERROR = """\
 The package version requirement can never be satisfied for the '{package}
 package.
   Required versions of dbt for '{package}': {version_spec}
-Check the requirements for the '{package}' package, or run dbt again with \
+Check for a different version of the '{package}' package, or run dbt again with \
 --no-version-check
 """
 
@@ -88,7 +83,9 @@ def _load_yaml(path):
 
 
 def package_data_from_root(project_root):
-    package_filepath = resolve_path_from_base("packages.yml", project_root)
+    package_filepath = resolve_path_from_base(
+        'packages.yml', project_root
+    )
 
     if path_exists(package_filepath):
         packages_dict = _load_yaml(package_filepath)
@@ -99,7 +96,7 @@ def package_data_from_root(project_root):
 
 def package_config_from_data(packages_data: Dict[str, Any]):
     if not packages_data:
-        packages_data = {"packages": []}
+        packages_data = {'packages': []}
 
     try:
         PackageConfig.validate(packages_data)
@@ -122,23 +119,22 @@ def _parse_versions(versions: Union[List[str], str]) -> List[VersionSpecifier]:
     Regardless, this will return a list of VersionSpecifiers
     """
     if isinstance(versions, str):
-        versions = versions.split(",")
+        versions = versions.split(',')
     return [VersionSpecifier.from_version_string(v) for v in versions]
 
 
 def _all_source_paths(
-    source_paths: List[str],
-    data_paths: List[str],
+    model_paths: List[str],
+    seed_paths: List[str],
     snapshot_paths: List[str],
     analysis_paths: List[str],
     macro_paths: List[str],
 ) -> List[str]:
-    return list(
-        chain(source_paths, data_paths, snapshot_paths, analysis_paths, macro_paths)
-    )
+    return list(chain(model_paths, seed_paths, snapshot_paths, analysis_paths,
+                      macro_paths))
 
 
-T = TypeVar("T")
+T = TypeVar('T')
 
 
 def value_or(value: Optional[T], default: T) -> T:
@@ -151,27 +147,30 @@ def value_or(value: Optional[T], default: T) -> T:
 def _raw_project_from(project_root: str) -> Dict[str, Any]:
 
     project_root = os.path.normpath(project_root)
-    project_yaml_filepath = os.path.join(project_root, "dbt_project.yml")
+    project_yaml_filepath = os.path.join(project_root, 'dbt_project.yml')
 
     # get the project.yml contents
     if not path_exists(project_yaml_filepath):
         raise DbtProjectError(
-            "no dbt_project.yml found at expected path {}".format(project_yaml_filepath)
+            'no dbt_project.yml found at expected path {}'
+            .format(project_yaml_filepath)
         )
 
     project_dict = _load_yaml(project_yaml_filepath)
 
     if not isinstance(project_dict, dict):
-        raise DbtProjectError("dbt_project.yml does not parse to a dictionary")
+        raise DbtProjectError(
+            'dbt_project.yml does not parse to a dictionary'
+        )
 
     return project_dict
 
 
 def _query_comment_from_cfg(
-    cfg_query_comment: Union[QueryComment, NoValue, str, None]
+        cfg_query_comment: Union[QueryComment, NoValue, str, None]
 ) -> QueryComment:
     if not cfg_query_comment:
-        return QueryComment(comment="")
+        return QueryComment(comment='')
 
     if isinstance(cfg_query_comment, str):
         return QueryComment(comment=cfg_query_comment)
@@ -188,7 +187,9 @@ def validate_version(dbt_version: List[VersionSpecifier], project_name: str):
     if not versions_compatible(*dbt_version):
         msg = IMPOSSIBLE_VERSION_ERROR.format(
             package=project_name,
-            version_spec=[x.to_version_string() for x in dbt_version],
+            version_spec=[
+                x.to_version_string() for x in dbt_version
+            ]
         )
         raise DbtProjectError(msg)
 
@@ -196,7 +197,9 @@ def validate_version(dbt_version: List[VersionSpecifier], project_name: str):
         msg = INVALID_VERSION_ERROR.format(
             package=project_name,
             installed=installed.to_version_string(),
-            version_spec=[x.to_version_string() for x in dbt_version],
+            version_spec=[
+                x.to_version_string() for x in dbt_version
+            ]
         )
         raise DbtProjectError(msg)
 
@@ -205,8 +208,8 @@ def _get_required_version(
     project_dict: Dict[str, Any],
     verify_version: bool,
 ) -> List[VersionSpecifier]:
-    dbt_raw_version: Union[List[str], str] = ">=0.0.0"
-    required = project_dict.get("require-dbt-version")
+    dbt_raw_version: Union[List[str], str] = '>=0.0.0'
+    required = project_dict.get('require-dbt-version')
     if required is not None:
         dbt_raw_version = required
 
@@ -217,11 +220,11 @@ def _get_required_version(
 
     if verify_version:
         # no name is also an error that we want to raise
-        if "name" not in project_dict:
+        if 'name' not in project_dict:
             raise DbtProjectError(
                 'Required "name" field not present in project',
             )
-        validate_version(dbt_version, project_dict["name"])
+        validate_version(dbt_version, project_dict['name'])
 
     return dbt_version
 
@@ -229,36 +232,34 @@ def _get_required_version(
 @dataclass
 class RenderComponents:
     project_dict: Dict[str, Any] = field(
-        metadata=dict(description="The project dictionary")
+        metadata=dict(description='The project dictionary')
     )
     packages_dict: Dict[str, Any] = field(
-        metadata=dict(description="The packages dictionary")
+        metadata=dict(description='The packages dictionary')
     )
     selectors_dict: Dict[str, Any] = field(
-        metadata=dict(description="The selectors dictionary")
+        metadata=dict(description='The selectors dictionary')
     )
 
 
 @dataclass
 class PartialProject(RenderComponents):
-    profile_name: Optional[str] = field(
-        metadata=dict(description="The unrendered profile name in the project, if set")
-    )
-    project_name: Optional[str] = field(
-        metadata=dict(
-            description=(
-                "The name of the project. This should always be set and will not "
-                "be rendered"
-            )
+    profile_name: Optional[str] = field(metadata=dict(
+        description='The unrendered profile name in the project, if set'
+    ))
+    project_name: Optional[str] = field(metadata=dict(
+        description=(
+            'The name of the project. This should always be set and will not '
+            'be rendered'
         )
-    )
+    ))
     project_root: str = field(
-        metadata=dict(description="The root directory of the project"),
+        metadata=dict(description='The root directory of the project'),
     )
     verify_version: bool = field(
-        metadata=dict(
-            description=("If True, verify the dbt version matches the required version")
-        )
+        metadata=dict(description=(
+            'If True, verify the dbt version matches the required version'
+        ))
     )
 
     def render_profile_name(self, renderer) -> Optional[str]:
@@ -271,7 +272,9 @@ class PartialProject(RenderComponents):
         renderer: DbtProjectYamlRenderer,
     ) -> RenderComponents:
 
-        rendered_project = renderer.render_project(self.project_dict, self.project_root)
+        rendered_project = renderer.render_project(
+            self.project_dict, self.project_root
+        )
         rendered_packages = renderer.render_packages(self.packages_dict)
         rendered_selectors = renderer.render_selectors(self.selectors_dict)
 
@@ -281,16 +284,32 @@ class PartialProject(RenderComponents):
             selectors_dict=rendered_selectors,
         )
 
-    def render(self, renderer: DbtProjectYamlRenderer) -> "Project":
+    # Called by 'collect_parts' in RuntimeConfig
+    def render(self, renderer: DbtProjectYamlRenderer) -> 'Project':
         try:
             rendered = self.get_rendered(renderer)
             return self.create_project(rendered)
         except DbtProjectError as exc:
             if exc.path is None:
-                exc.path = os.path.join(self.project_root, "dbt_project.yml")
+                exc.path = os.path.join(self.project_root, 'dbt_project.yml')
             raise
 
-    def create_project(self, rendered: RenderComponents) -> "Project":
+    def check_config_path(self, project_dict, deprecated_path, exp_path):
+        if deprecated_path in project_dict:
+            if exp_path in project_dict:
+                msg = (
+                    '{deprecated_path} and {exp_path} cannot both be defined. The '
+                    '`{deprecated_path}` config has been deprecated in favor of `{exp_path}`. '
+                    'Please update your `dbt_project.yml` configuration to reflect this '
+                    'change.'
+                )
+                raise DbtProjectError(msg.format(deprecated_path=deprecated_path,
+                                                 exp_path=exp_path))
+            deprecations.warn(f'project-config-{deprecated_path}',
+                              deprecated_path=deprecated_path,
+                              exp_path=exp_path)
+
+    def create_project(self, rendered: RenderComponents) -> 'Project':
         unrendered = RenderComponents(
             project_dict=self.project_dict,
             packages_dict=self.packages_dict,
@@ -301,9 +320,14 @@ class PartialProject(RenderComponents):
             verify_version=self.verify_version,
         )
 
+        self.check_config_path(rendered.project_dict, 'source-paths', 'model-paths')
+        self.check_config_path(rendered.project_dict, 'data-paths', 'seed-paths')
+
         try:
             ProjectContract.validate(rendered.project_dict)
-            cfg = ProjectContract.from_dict(rendered.project_dict)
+            cfg = ProjectContract.from_dict(
+                rendered.project_dict
+            )
         except ValidationError as e:
             raise DbtProjectError(validator_error_message(e)) from e
         # name/version are required in the Project definition, so we can assume
@@ -313,30 +337,40 @@ class PartialProject(RenderComponents):
         # this is added at project_dict parse time and should always be here
         # once we see it.
         if cfg.project_root is None:
-            raise DbtProjectError("cfg must have a project root!")
+            raise DbtProjectError('cfg must have a project root!')
         else:
             project_root = cfg.project_root
         # this is only optional in the sense that if it's not present, it needs
         # to have been a cli argument.
         profile_name = cfg.profile
         # these are all the defaults
-        source_paths: List[str] = value_or(cfg.source_paths, ["models"])
-        macro_paths: List[str] = value_or(cfg.macro_paths, ["macros"])
-        data_paths: List[str] = value_or(cfg.data_paths, ["data"])
-        test_paths: List[str] = value_or(cfg.test_paths, ["test"])
-        analysis_paths: List[str] = value_or(cfg.analysis_paths, [])
-        snapshot_paths: List[str] = value_or(cfg.snapshot_paths, ["snapshots"])
+
+        # `source_paths` is deprecated but still allowed. Copy it into
+        # `model_paths` to simlify logic throughout the rest of the system.
+        model_paths: List[str] = value_or(cfg.model_paths
+                                          if 'model-paths' in rendered.project_dict
+                                          else cfg.source_paths, ['models'])
+        macro_paths: List[str] = value_or(cfg.macro_paths, ['macros'])
+        # `data_paths` is deprecated but still allowed. Copy it into
+        # `seed_paths` to simlify logic throughout the rest of the system.
+        seed_paths: List[str] = value_or(cfg.seed_paths
+                                         if 'seed-paths' in rendered.project_dict
+                                         else cfg.data_paths, ['seeds'])
+        test_paths: List[str] = value_or(cfg.test_paths, ['tests'])
+        analysis_paths: List[str] = value_or(cfg.analysis_paths, ['analyses'])
+        snapshot_paths: List[str] = value_or(cfg.snapshot_paths, ['snapshots'])
 
         all_source_paths: List[str] = _all_source_paths(
-            source_paths, data_paths, snapshot_paths, analysis_paths, macro_paths
+            model_paths, seed_paths, snapshot_paths, analysis_paths,
+            macro_paths
         )
 
         docs_paths: List[str] = value_or(cfg.docs_paths, all_source_paths)
         asset_paths: List[str] = value_or(cfg.asset_paths, [])
-        target_path: str = value_or(cfg.target_path, "target")
+        target_path: str = value_or(cfg.target_path, 'target')
         clean_targets: List[str] = value_or(cfg.clean_targets, [target_path])
-        log_path: str = value_or(cfg.log_path, "logs")
-        modules_path: str = value_or(cfg.modules_path, "dbt_modules")
+        log_path: str = value_or(cfg.log_path, 'logs')
+        packages_install_path: str = value_or(cfg.packages_install_path, 'dbt_packages')
         # in the default case we'll populate this once we know the adapter type
         # It would be nice to just pass along a Quoting here, but that would
         # break many things
@@ -344,22 +378,28 @@ class PartialProject(RenderComponents):
         if cfg.quoting is not None:
             quoting = cfg.quoting.to_dict(omit_none=True)
 
+        dispatch: List[Dict[str, Any]]
         models: Dict[str, Any]
         seeds: Dict[str, Any]
         snapshots: Dict[str, Any]
         sources: Dict[str, Any]
+        tests: Dict[str, Any]
         vars_value: VarProvider
 
+        dispatch = cfg.dispatch
         models = cfg.models
         seeds = cfg.seeds
         snapshots = cfg.snapshots
         sources = cfg.sources
+        tests = cfg.tests
         if cfg.vars is None:
             vars_dict: Dict[str, Any] = {}
         else:
             vars_dict = cfg.vars
 
         vars_value = VarProvider(vars_dict)
+        # There will never be any project_env_vars when it's first created
+        project_env_vars: Dict[str, Any] = {}
         on_run_start: List[str] = value_or(cfg.on_run_start, [])
         on_run_end: List[str] = value_or(cfg.on_run_end, [])
 
@@ -368,21 +408,19 @@ class PartialProject(RenderComponents):
         packages = package_config_from_data(rendered.packages_dict)
         selectors = selector_config_from_data(rendered.selectors_dict)
         manifest_selectors: Dict[str, Any] = {}
-        if rendered.selectors_dict and rendered.selectors_dict["selectors"]:
+        if rendered.selectors_dict and rendered.selectors_dict['selectors']:
             # this is a dict with a single key 'selectors' pointing to a list
             # of dicts.
             manifest_selectors = SelectorDict.parse_from_selectors_list(
-                rendered.selectors_dict["selectors"]
-            )
-
+                rendered.selectors_dict['selectors'])
         project = Project(
             project_name=name,
             version=version,
             project_root=project_root,
             profile_name=profile_name,
-            source_paths=source_paths,
+            model_paths=model_paths,
             macro_paths=macro_paths,
-            data_paths=data_paths,
+            seed_paths=seed_paths,
             test_paths=test_paths,
             analysis_paths=analysis_paths,
             docs_paths=docs_paths,
@@ -391,11 +429,12 @@ class PartialProject(RenderComponents):
             snapshot_paths=snapshot_paths,
             clean_targets=clean_targets,
             log_path=log_path,
-            modules_path=modules_path,
+            packages_install_path=packages_install_path,
             quoting=quoting,
             models=models,
             on_run_start=on_run_start,
             on_run_end=on_run_end,
+            dispatch=dispatch,
             seeds=seeds,
             snapshots=snapshots,
             dbt_version=dbt_version,
@@ -404,9 +443,11 @@ class PartialProject(RenderComponents):
             selectors=selectors,
             query_comment=query_comment,
             sources=sources,
+            tests=tests,
             vars=vars_value,
             config_version=cfg.config_version,
             unrendered=unrendered,
+            project_env_vars=project_env_vars,
         )
         # sanity check - this means an internal issue
         project.validate()
@@ -422,9 +463,10 @@ class PartialProject(RenderComponents):
         *,
         verify_version: bool = False,
     ):
-        """Construct a partial project from its constituent dicts."""
-        project_name = project_dict.get("name")
-        profile_name = project_dict.get("profile")
+        """Construct a partial project from its constituent dicts.
+        """
+        project_name = project_dict.get('name')
+        profile_name = project_dict.get('profile')
 
         return cls(
             profile_name=profile_name,
@@ -439,14 +481,14 @@ class PartialProject(RenderComponents):
     @classmethod
     def from_project_root(
         cls, project_root: str, *, verify_version: bool = False
-    ) -> "PartialProject":
+    ) -> 'PartialProject':
         project_root = os.path.normpath(project_root)
         project_dict = _raw_project_from(project_root)
-        config_version = project_dict.get("config-version", 1)
+        config_version = project_dict.get('config-version', 1)
         if config_version != 2:
             raise DbtProjectError(
-                f"Invalid config version: {config_version}, expected 2",
-                path=os.path.join(project_root, "dbt_project.yml"),
+                f'Invalid config version: {config_version}, expected 2',
+                path=os.path.join(project_root, 'dbt_project.yml')
             )
 
         packages_dict = package_data_from_root(project_root)
@@ -463,10 +505,15 @@ class PartialProject(RenderComponents):
 class VarProvider:
     """Var providers are tied to a particular Project."""
 
-    def __init__(self, vars: Dict[str, Dict[str, Any]]) -> None:
+    def __init__(
+        self,
+        vars: Dict[str, Dict[str, Any]]
+    ) -> None:
         self.vars = vars
 
-    def vars_for(self, node: IsFQNResource, adapter_type: str) -> Mapping[str, Any]:
+    def vars_for(
+        self, node: IsFQNResource, adapter_type: str
+    ) -> Mapping[str, Any]:
         # in v2, vars are only either project or globally scoped
         merged = MultiDict([self.vars])
         merged.add(self.vars.get(node.package_name, {}))
@@ -484,9 +531,9 @@ class Project:
     version: Union[SemverString, float]
     project_root: str
     profile_name: Optional[str]
-    source_paths: List[str]
+    model_paths: List[str]
     macro_paths: List[str]
-    data_paths: List[str]
+    seed_paths: List[str]
     test_paths: List[str]
     analysis_paths: List[str]
     docs_paths: List[str]
@@ -495,14 +542,16 @@ class Project:
     snapshot_paths: List[str]
     clean_targets: List[str]
     log_path: str
-    modules_path: str
+    packages_install_path: str
     quoting: Dict[str, Any]
     models: Dict[str, Any]
     on_run_start: List[str]
     on_run_end: List[str]
+    dispatch: List[Dict[str, Any]]
     seeds: Dict[str, Any]
     snapshots: Dict[str, Any]
     sources: Dict[str, Any]
+    tests: Dict[str, Any]
     vars: VarProvider
     dbt_version: List[VersionSpecifier]
     packages: Dict[str, Any]
@@ -511,29 +560,32 @@ class Project:
     query_comment: QueryComment
     config_version: int
     unrendered: RenderComponents
+    project_env_vars: Dict[str, Any]
 
     @property
     def all_source_paths(self) -> List[str]:
         return _all_source_paths(
-            self.source_paths,
-            self.data_paths,
-            self.snapshot_paths,
-            self.analysis_paths,
-            self.macro_paths,
+            self.model_paths, self.seed_paths, self.snapshot_paths,
+            self.analysis_paths, self.macro_paths
         )
 
+    @property
+    def generic_test_paths(self):
+        generic_test_paths = []
+        for test_path in self.test_paths:
+            generic_test_paths.append(os.path.join(test_path, 'generic'))
+        return generic_test_paths
+
     def __str__(self):
         cfg = self.to_project_config(with_packages=True)
         return str(cfg)
 
     def __eq__(self, other):
-        if not (
-            isinstance(other, self.__class__) and isinstance(self, other.__class__)
-        ):
+        if not (isinstance(other, self.__class__) and
+                isinstance(self, other.__class__)):
             return False
-        return self.to_project_config(with_packages=True) == other.to_project_config(
-            with_packages=True
-        )
+        return self.to_project_config(with_packages=True) == \
+            other.to_project_config(with_packages=True)
 
     def to_project_config(self, with_packages=False):
         """Return a dict representation of the config that could be written to
@@ -543,39 +595,40 @@ class Project:
             file in the root.
         :returns dict: The serialized profile.
         """
-        result = deepcopy(
-            {
-                "name": self.project_name,
-                "version": self.version,
-                "project-root": self.project_root,
-                "profile": self.profile_name,
-                "source-paths": self.source_paths,
-                "macro-paths": self.macro_paths,
-                "data-paths": self.data_paths,
-                "test-paths": self.test_paths,
-                "analysis-paths": self.analysis_paths,
-                "docs-paths": self.docs_paths,
-                "asset-paths": self.asset_paths,
-                "target-path": self.target_path,
-                "snapshot-paths": self.snapshot_paths,
-                "clean-targets": self.clean_targets,
-                "log-path": self.log_path,
-                "quoting": self.quoting,
-                "models": self.models,
-                "on-run-start": self.on_run_start,
-                "on-run-end": self.on_run_end,
-                "seeds": self.seeds,
-                "snapshots": self.snapshots,
-                "sources": self.sources,
-                "vars": self.vars.to_dict(),
-                "require-dbt-version": [
-                    v.to_version_string() for v in self.dbt_version
-                ],
-                "config-version": self.config_version,
-            }
-        )
+        result = deepcopy({
+            'name': self.project_name,
+            'version': self.version,
+            'project-root': self.project_root,
+            'profile': self.profile_name,
+            'model-paths': self.model_paths,
+            'macro-paths': self.macro_paths,
+            'seed-paths': self.seed_paths,
+            'test-paths': self.test_paths,
+            'analysis-paths': self.analysis_paths,
+            'docs-paths': self.docs_paths,
+            'asset-paths': self.asset_paths,
+            'target-path': self.target_path,
+            'snapshot-paths': self.snapshot_paths,
+            'clean-targets': self.clean_targets,
+            'log-path': self.log_path,
+            'quoting': self.quoting,
+            'models': self.models,
+            'on-run-start': self.on_run_start,
+            'on-run-end': self.on_run_end,
+            'dispatch': self.dispatch,
+            'seeds': self.seeds,
+            'snapshots': self.snapshots,
+            'sources': self.sources,
+            'tests': self.tests,
+            'vars': self.vars.to_dict(),
+            'require-dbt-version': [
+                v.to_version_string() for v in self.dbt_version
+            ],
+            'config-version': self.config_version,
+        })
         if self.query_comment:
-            result["query-comment"] = self.query_comment.to_dict(omit_none=True)
+            result['query-comment'] = \
+                self.query_comment.to_dict(omit_none=True)
 
         if with_packages:
             result.update(self.packages.to_dict(omit_none=True))
@@ -597,26 +650,6 @@ class Project:
             verify_version=verify_version,
         )
 
-    @classmethod
-    def render_from_dict(
-        cls,
-        project_root: str,
-        project_dict: Dict[str, Any],
-        packages_dict: Dict[str, Any],
-        selectors_dict: Dict[str, Any],
-        renderer: DbtProjectYamlRenderer,
-        *,
-        verify_version: bool = False,
-    ) -> "Project":
-        partial = PartialProject.from_dicts(
-            project_root=project_root,
-            project_dict=project_dict,
-            packages_dict=packages_dict,
-            selectors_dict=selectors_dict,
-            verify_version=verify_version,
-        )
-        return partial.render(renderer)
-
     @classmethod
     def from_project_root(
         cls,
@@ -624,17 +657,34 @@ class Project:
         renderer: DbtProjectYamlRenderer,
         *,
         verify_version: bool = False,
-    ) -> "Project":
+    ) -> 'Project':
         partial = cls.partial_load(project_root, verify_version=verify_version)
         return partial.render(renderer)
 
     def hashed_name(self):
-        return hashlib.md5(self.project_name.encode("utf-8")).hexdigest()
+        return hashlib.md5(self.project_name.encode('utf-8')).hexdigest()
 
-    def get_selector(self, name: str) -> SelectionSpec:
+    def get_selector(self, name: str) -> Union[SelectionSpec, bool]:
         if name not in self.selectors:
             raise RuntimeException(
-                f"Could not find selector named {name}, expected one of "
-                f"{list(self.selectors)}"
+                f'Could not find selector named {name}, expected one of '
+                f'{list(self.selectors)}'
             )
-        return self.selectors[name]
+        return self.selectors[name]["definition"]
+
+    def get_default_selector_name(self) -> Union[str, None]:
+        """This function fetch the default selector to use on `dbt run` (if any)
+        :return: either a selector if default is set or None
+        :rtype: Union[SelectionSpec, None]
+        """
+        for selector_name, selector in self.selectors.items():
+            if selector["default"] is True:
+                return selector_name
+
+        return None
+
+    def get_macro_search_order(self, macro_namespace: str):
+        for dispatch_entry in self.dispatch:
+            if dispatch_entry['macro_namespace'] == macro_namespace:
+                return dispatch_entry['search_order']
+        return None

core/dbt/config/renderer.py

@@ -1,10 +1,14 @@
 from typing import Dict, Any, Tuple, Optional, Union, Callable
 
 from dbt.clients.jinja import get_rendered, catch_jinja
-
-from dbt.exceptions import DbtProjectError, CompilationException, RecursionException
-from dbt.node_types import NodeType
-from dbt.utils import deep_map
+from dbt.context.target import TargetContext
+from dbt.context.secret import SecretContext
+from dbt.context.base import BaseContext
+from dbt.contracts.connection import HasCredentials
+from dbt.exceptions import (
+    DbtProjectError, CompilationException, RecursionException
+)
+from dbt.utils import deep_map_render
 
 
 Keypath = Tuple[Union[str, int], ...]
@@ -16,7 +20,7 @@ class BaseRenderer:
 
     @property
     def name(self):
-        return "Rendering"
+        return 'Rendering'
 
     def should_render_keypath(self, keypath: Keypath) -> bool:
         return True
@@ -27,7 +31,9 @@ class BaseRenderer:
 
         return self.render_value(value, keypath)
 
-    def render_value(self, value: Any, keypath: Optional[Keypath] = None) -> Any:
+    def render_value(
+        self, value: Any, keypath: Optional[Keypath] = None
+    ) -> Any:
         # keypath is ignored.
         # if it wasn't read as a string, ignore it
         if not isinstance(value, str):
@@ -36,16 +42,18 @@ class BaseRenderer:
             with catch_jinja():
                 return get_rendered(value, self.context, native=True)
         except CompilationException as exc:
-            msg = f"Could not render {value}: {exc.msg}"
+            msg = f'Could not render {value}: {exc.msg}'
             raise CompilationException(msg) from exc
 
-    def render_data(self, data: Dict[str, Any]) -> Dict[str, Any]:
+    def render_data(
+        self, data: Dict[str, Any]
+    ) -> Dict[str, Any]:
         try:
-            return deep_map(self.render_entry, data)
+            return deep_map_render(self.render_entry, data)
         except RecursionException:
             raise DbtProjectError(
-                f"Cycle detected: {self.name} input has a reference to itself",
-                project=data,
+                f'Cycle detected: {self.name} input has a reference to itself',
+                project=data
             )
 
 
@@ -72,15 +80,15 @@ class ProjectPostprocessor(Dict[Keypath, Callable[[Any], Any]]):
     def __init__(self):
         super().__init__()
 
-        self[("on-run-start",)] = _list_if_none_or_string
-        self[("on-run-end",)] = _list_if_none_or_string
+        self[('on-run-start',)] = _list_if_none_or_string
+        self[('on-run-end',)] = _list_if_none_or_string
 
-        for k in ("models", "seeds", "snapshots"):
+        for k in ('models', 'seeds', 'snapshots'):
             self[(k,)] = _dict_if_none
-            self[(k, "vars")] = _dict_if_none
-            self[(k, "pre-hook")] = _list_if_none_or_string
-            self[(k, "post-hook")] = _list_if_none_or_string
-        self[("seeds", "column_types")] = _dict_if_none
+            self[(k, 'vars')] = _dict_if_none
+            self[(k, 'pre-hook')] = _list_if_none_or_string
+            self[(k, 'post-hook')] = _list_if_none_or_string
+        self[('seeds', 'column_types')] = _dict_if_none
 
     def postprocess(self, value: Any, key: Keypath) -> Any:
         if key in self:
@@ -93,9 +101,26 @@ class ProjectPostprocessor(Dict[Keypath, Callable[[Any], Any]]):
 class DbtProjectYamlRenderer(BaseRenderer):
     _KEYPATH_HANDLERS = ProjectPostprocessor()
 
+    def __init__(
+        self, profile: Optional[HasCredentials] = None,
+        cli_vars: Optional[Dict[str, Any]] = None
+    ) -> None:
+        # Generate contexts here because we want to save the context
+        # object in order to retrieve the env_vars. This is almost always
+        # a TargetContext, but in the debug task we want a project
+        # even when we don't have a profile.
+        if cli_vars is None:
+            cli_vars = {}
+        if profile:
+            self.ctx_obj = TargetContext(profile, cli_vars)
+        else:
+            self.ctx_obj = BaseContext(cli_vars)  # type:ignore
+        context = self.ctx_obj.to_dict()
+        super().__init__(context)
+
     @property
     def name(self):
-        "Project config"
+        'Project config'
 
     def get_package_renderer(self) -> BaseRenderer:
         return PackageRenderer(self.context)
@@ -110,7 +135,7 @@ class DbtProjectYamlRenderer(BaseRenderer):
     ) -> Dict[str, Any]:
         """Render the project and insert the project root after rendering."""
         rendered_project = self.render_data(project)
-        rendered_project["project-root"] = project_root
+        rendered_project['project-root'] = project_root
         return rendered_project
 
     def render_packages(self, packages: Dict[str, Any]):
@@ -132,98 +157,55 @@ class DbtProjectYamlRenderer(BaseRenderer):
 
         first = keypath[0]
         # run hooks are not rendered
-        if first in {"on-run-start", "on-run-end", "query-comment"}:
+        if first in {'on-run-start', 'on-run-end', 'query-comment'}:
             return False
 
         # don't render vars blocks until runtime
-        if first == "vars":
+        if first == 'vars':
             return False
 
-        if first in {"seeds", "models", "snapshots", "seeds"}:
+        if first in {'seeds', 'models', 'snapshots', 'tests'}:
             keypath_parts = {
-                (k.lstrip("+") if isinstance(k, str) else k) for k in keypath
+                (k.lstrip('+ ') if isinstance(k, str) else k)
+                for k in keypath
             }
             # model-level hooks
-            if "pre-hook" in keypath_parts or "post-hook" in keypath_parts:
+            if 'pre-hook' in keypath_parts or 'post-hook' in keypath_parts:
                 return False
 
         return True
 
 
-class ProfileRenderer(BaseRenderer):
-    @property
-    def name(self):
-        "Profile"
-
-
-class SchemaYamlRenderer(BaseRenderer):
-    DOCUMENTABLE_NODES = frozenset(n.pluralize() for n in NodeType.documentable())
-
-    @property
-    def name(self):
-        return "Rendering yaml"
-
-    def _is_norender_key(self, keypath: Keypath) -> bool:
-        """
-        models:
-            - name: blah
-            - description: blah
-              tests: ...
-            - columns:
-                - name:
-                - description: blah
-                  tests: ...
-
-        Return True if it's tests or description - those aren't rendered
-        """
-        if len(keypath) >= 2 and keypath[1] in ("tests", "description"):
-            return True
-
-        if (
-            len(keypath) >= 4
-            and keypath[1] == "columns"
-            and keypath[3] in ("tests", "description")
-        ):
-            return True
-
-        return False
-
-    # don't render descriptions or test keyword arguments
-    def should_render_keypath(self, keypath: Keypath) -> bool:
-        if len(keypath) < 2:
-            return True
-
-        if keypath[0] not in self.DOCUMENTABLE_NODES:
-            return True
-
-        if len(keypath) < 3:
-            return True
-
-        if keypath[0] == NodeType.Source.pluralize():
-            if keypath[2] == "description":
-                return False
-            if keypath[2] == "tables":
-                if self._is_norender_key(keypath[3:]):
-                    return False
-        elif keypath[0] == NodeType.Macro.pluralize():
-            if keypath[2] == "arguments":
-                if self._is_norender_key(keypath[3:]):
-                    return False
-            elif self._is_norender_key(keypath[1:]):
-                return False
-        else:  # keypath[0] in self.DOCUMENTABLE_NODES:
-            if self._is_norender_key(keypath[1:]):
-                return False
-        return True
-
-
-class PackageRenderer(BaseRenderer):
-    @property
-    def name(self):
-        return "Packages config"
-
-
 class SelectorRenderer(BaseRenderer):
     @property
     def name(self):
-        return "Selector config"
+        return 'Selector config'
+
+
+class SecretRenderer(BaseRenderer):
+    def __init__(
+        self, cli_vars: Optional[Dict[str, Any]] = None
+    ) -> None:
+        # Generate contexts here because we want to save the context
+        # object in order to retrieve the env_vars.
+        if cli_vars is None:
+            cli_vars = {}
+        self.ctx_obj = SecretContext(cli_vars)
+        context = self.ctx_obj.to_dict()
+        super().__init__(context)
+
+    @property
+    def name(self):
+        return 'Secret'
+
+
+class ProfileRenderer(SecretRenderer):
+    @property
+    def name(self):
+        return 'Profile'
+
+
+class PackageRenderer(SecretRenderer):
+    @property
+    def name(self):
+        return 'Packages config'

core/dbt/config/runtime.py

@@ -1,50 +1,41 @@
 import itertools
 import os
 from copy import deepcopy
-from dataclasses import dataclass, fields
+from dataclasses import dataclass
 from pathlib import Path
 from typing import (
-    Dict,
-    Any,
-    Optional,
-    Mapping,
-    Iterator,
-    Iterable,
-    Tuple,
-    List,
-    MutableSet,
-    Type,
+    Dict, Any, Optional, Mapping, Iterator, Iterable, Tuple, List, MutableSet,
+    Type
 )
 
 from .profile import Profile
 from .project import Project
 from .renderer import DbtProjectYamlRenderer, ProfileRenderer
 from .utils import parse_cli_vars
-from dbt import tracking
+from dbt import flags
 from dbt.adapters.factory import get_relation_class_by_name, get_include_paths
 from dbt.helper_types import FQNPath, PathSet
-from dbt.context import generate_base_context
-from dbt.context.target import generate_target_context
+from dbt.config.profile import read_user_config
 from dbt.contracts.connection import AdapterRequiredConfig, Credentials
 from dbt.contracts.graph.manifest import ManifestMetadata
 from dbt.contracts.relation import ComponentName
-from dbt.logger import GLOBAL_LOGGER as logger
 from dbt.ui import warning_tag
 
 from dbt.contracts.project import Configuration, UserConfig
 from dbt.exceptions import (
     RuntimeException,
-    DbtProfileError,
     DbtProjectError,
     validator_error_message,
     warn_or_error,
-    raise_compiler_error,
+    raise_compiler_error
 )
 
 from dbt.dataclass_schema import ValidationError
 
 
-def _project_quoting_dict(proj: Project, profile: Profile) -> Dict[ComponentName, bool]:
+def _project_quoting_dict(
+    proj: Project, profile: Profile
+) -> Dict[ComponentName, bool]:
     src: Dict[str, Any] = profile.credentials.translate_aliases(proj.quoting)
     result: Dict[ComponentName, bool] = {}
     for key in ComponentName:
@@ -60,19 +51,20 @@ class RuntimeConfig(Project, Profile, AdapterRequiredConfig):
     args: Any
     profile_name: str
     cli_vars: Dict[str, Any]
-    dependencies: Optional[Mapping[str, "RuntimeConfig"]] = None
+    dependencies: Optional[Mapping[str, 'RuntimeConfig']] = None
 
     def __post_init__(self):
         self.validate()
 
+    # Called by 'new_project' and 'from_args'
     @classmethod
     def from_parts(
         cls,
         project: Project,
         profile: Profile,
         args: Any,
-        dependencies: Optional[Mapping[str, "RuntimeConfig"]] = None,
-    ) -> "RuntimeConfig":
+        dependencies: Optional[Mapping[str, 'RuntimeConfig']] = None,
+    ) -> 'RuntimeConfig':
         """Instantiate a RuntimeConfig from its components.
 
         :param profile: A parsed dbt Profile.
@@ -86,15 +78,15 @@ class RuntimeConfig(Project, Profile, AdapterRequiredConfig):
             .replace_dict(_project_quoting_dict(project, profile))
         ).to_dict(omit_none=True)
 
-        cli_vars: Dict[str, Any] = parse_cli_vars(getattr(args, "vars", "{}"))
+        cli_vars: Dict[str, Any] = parse_cli_vars(getattr(args, 'vars', '{}'))
 
         return cls(
             project_name=project.project_name,
             version=project.version,
             project_root=project.project_root,
-            source_paths=project.source_paths,
+            model_paths=project.model_paths,
             macro_paths=project.macro_paths,
-            data_paths=project.data_paths,
+            seed_paths=project.seed_paths,
             test_paths=project.test_paths,
             analysis_paths=project.analysis_paths,
             docs_paths=project.docs_paths,
@@ -103,11 +95,12 @@ class RuntimeConfig(Project, Profile, AdapterRequiredConfig):
             snapshot_paths=project.snapshot_paths,
             clean_targets=project.clean_targets,
             log_path=project.log_path,
-            modules_path=project.modules_path,
+            packages_install_path=project.packages_install_path,
             quoting=quoting,
             models=project.models,
             on_run_start=project.on_run_start,
             on_run_end=project.on_run_end,
+            dispatch=project.dispatch,
             seeds=project.seeds,
             snapshots=project.snapshots,
             dbt_version=project.dbt_version,
@@ -116,12 +109,15 @@ class RuntimeConfig(Project, Profile, AdapterRequiredConfig):
             selectors=project.selectors,
             query_comment=project.query_comment,
             sources=project.sources,
+            tests=project.tests,
             vars=project.vars,
             config_version=project.config_version,
             unrendered=project.unrendered,
+            project_env_vars=project.project_env_vars,
+            profile_env_vars=profile.profile_env_vars,
             profile_name=profile.profile_name,
             target_name=profile.target_name,
-            config=profile.config,
+            user_config=profile.user_config,
             threads=profile.threads,
             credentials=profile.credentials,
             args=args,
@@ -129,7 +125,8 @@ class RuntimeConfig(Project, Profile, AdapterRequiredConfig):
             dependencies=dependencies,
         )
 
-    def new_project(self, project_root: str) -> "RuntimeConfig":
+    # Called by 'load_projects' in this class
+    def new_project(self, project_root: str) -> 'RuntimeConfig':
         """Given a new project root, read in its project dictionary, supply the
         existing project's profile info, and create a new project file.
 
@@ -143,22 +140,22 @@ class RuntimeConfig(Project, Profile, AdapterRequiredConfig):
         profile.validate()
 
         # load the new project and its packages. Don't pass cli variables.
-        renderer = DbtProjectYamlRenderer(generate_target_context(profile, {}))
+        renderer = DbtProjectYamlRenderer(profile)
 
         project = Project.from_project_root(
             project_root,
             renderer,
-            verify_version=getattr(self.args, "version_check", False),
+            verify_version=bool(flags.VERSION_CHECK),
         )
 
-        cfg = self.from_parts(
+        runtime_config = self.from_parts(
             project=project,
             profile=profile,
             args=deepcopy(self.args),
         )
         # force our quoting back onto the new project.
-        cfg.quoting = deepcopy(self.quoting)
-        return cfg
+        runtime_config.quoting = deepcopy(self.quoting)
+        return runtime_config
 
     def serialize(self) -> Dict[str, Any]:
         """Serialize the full configuration to a single dictionary. For any
@@ -171,7 +168,7 @@ class RuntimeConfig(Project, Profile, AdapterRequiredConfig):
         """
         result = self.to_project_config(with_packages=True)
         result.update(self.to_profile_info(serialize_credentials=True))
-        result["cli_vars"] = deepcopy(self.cli_vars)
+        result['cli_vars'] = deepcopy(self.cli_vars)
         return result
 
     def validate(self):
@@ -191,31 +188,46 @@ class RuntimeConfig(Project, Profile, AdapterRequiredConfig):
         profile_renderer: ProfileRenderer,
         profile_name: Optional[str],
     ) -> Profile:
-        return Profile.render_from_args(args, profile_renderer, profile_name)
+
+        return Profile.render_from_args(
+            args, profile_renderer, profile_name
+        )
 
     @classmethod
-    def collect_parts(cls: Type["RuntimeConfig"], args: Any) -> Tuple[Project, Profile]:
+    def collect_parts(
+        cls: Type['RuntimeConfig'], args: Any
+    ) -> Tuple[Project, Profile]:
         # profile_name from the project
         project_root = args.project_dir if args.project_dir else os.getcwd()
-        version_check = getattr(args, "version_check", False)
-        partial = Project.partial_load(project_root, verify_version=version_check)
+        version_check = bool(flags.VERSION_CHECK)
+        partial = Project.partial_load(
+            project_root,
+            verify_version=version_check
+        )
 
         # build the profile using the base renderer and the one fact we know
-        cli_vars: Dict[str, Any] = parse_cli_vars(getattr(args, "vars", "{}"))
-        profile_renderer = ProfileRenderer(generate_base_context(cli_vars))
+        # Note: only the named profile section is rendered. The rest of the
+        # profile is ignored.
+        cli_vars: Dict[str, Any] = parse_cli_vars(getattr(args, 'vars', '{}'))
+        profile_renderer = ProfileRenderer(cli_vars)
         profile_name = partial.render_profile_name(profile_renderer)
-
-        profile = cls._get_rendered_profile(args, profile_renderer, profile_name)
+        profile = cls._get_rendered_profile(
+            args, profile_renderer, profile_name
+        )
+        # Save env_vars encountered in rendering for partial parsing
+        profile.profile_env_vars = profile_renderer.ctx_obj.env_vars
 
         # get a new renderer using our target information and render the
         # project
-        ctx = generate_target_context(profile, cli_vars)
-        project_renderer = DbtProjectYamlRenderer(ctx)
+        project_renderer = DbtProjectYamlRenderer(profile, cli_vars)
         project = partial.render(project_renderer)
+        # Save env_vars encountered in rendering for partial parsing
+        project.project_env_vars = project_renderer.ctx_obj.env_vars
         return (project, profile)
 
+    # Called in main.py, lib.py, task/base.py
     @classmethod
-    def from_args(cls, args: Any) -> "RuntimeConfig":
+    def from_args(cls, args: Any) -> 'RuntimeConfig':
         """Given arguments, read in dbt_project.yml from the current directory,
         read in packages.yml if it exists, and use them to find the profile to
         load.
@@ -235,7 +247,8 @@ class RuntimeConfig(Project, Profile, AdapterRequiredConfig):
 
     def get_metadata(self) -> ManifestMetadata:
         return ManifestMetadata(
-            project_id=self.hashed_name(), adapter_type=self.credentials.type
+            project_id=self.hashed_name(),
+            adapter_type=self.credentials.type
         )
 
     def _get_v2_config_paths(
@@ -245,8 +258,8 @@ class RuntimeConfig(Project, Profile, AdapterRequiredConfig):
         paths: MutableSet[FQNPath],
     ) -> PathSet:
         for key, value in config.items():
-            if isinstance(value, dict) and not key.startswith("+"):
-                self._get_v2_config_paths(value, path + (key,), paths)
+            if isinstance(value, dict) and not key.startswith('+'):
+                self._get_config_paths(value, path + (key,), paths)
             else:
                 paths.add(path)
         return frozenset(paths)
@@ -261,22 +274,23 @@ class RuntimeConfig(Project, Profile, AdapterRequiredConfig):
             paths = set()
 
         for key, value in config.items():
-            if isinstance(value, dict) and not key.startswith("+"):
+            if isinstance(value, dict) and not key.startswith('+'):
                 self._get_v2_config_paths(value, path + (key,), paths)
             else:
                 paths.add(path)
         return frozenset(paths)
 
     def get_resource_config_paths(self) -> Dict[str, PathSet]:
-        """Return a dictionary with 'seeds' and 'models' keys whose values are
+        """Return a dictionary with resource type keys whose values are
         lists of lists of strings, where each inner list of strings represents
         a configured path in the resource.
         """
         return {
-            "models": self._get_config_paths(self.models),
-            "seeds": self._get_config_paths(self.seeds),
-            "snapshots": self._get_config_paths(self.snapshots),
-            "sources": self._get_config_paths(self.sources),
+            'models': self._get_config_paths(self.models),
+            'seeds': self._get_config_paths(self.seeds),
+            'snapshots': self._get_config_paths(self.snapshots),
+            'sources': self._get_config_paths(self.sources),
+            'tests': self._get_config_paths(self.tests),
         }
 
     def get_unused_resource_config_paths(
@@ -297,7 +311,9 @@ class RuntimeConfig(Project, Profile, AdapterRequiredConfig):
 
             for config_path in config_paths:
                 if not _is_config_used(config_path, fqns):
-                    unused_resource_config_paths.append((resource_type,) + config_path)
+                    unused_resource_config_paths.append(
+                        (resource_type,) + config_path
+                    )
         return unused_resource_config_paths
 
     def warn_for_unused_resource_config_paths(
@@ -310,25 +326,38 @@ class RuntimeConfig(Project, Profile, AdapterRequiredConfig):
             return
 
         msg = UNUSED_RESOURCE_CONFIGURATION_PATH_MESSAGE.format(
-            len(unused), "\n".join("- {}".format(".".join(u)) for u in unused)
+            len(unused),
+            '\n'.join('- {}'.format('.'.join(u)) for u in unused)
         )
 
-        warn_or_error(msg, log_fmt=warning_tag("{}"))
+        warn_or_error(msg, log_fmt=warning_tag('{}'))
 
-    def load_dependencies(self) -> Mapping[str, "RuntimeConfig"]:
+    def load_dependencies(self) -> Mapping[str, 'RuntimeConfig']:
         if self.dependencies is None:
             all_projects = {self.project_name: self}
             internal_packages = get_include_paths(self.credentials.type)
+            # raise exception if fewer installed packages than in packages.yml
+            count_packages_specified = len(self.packages.packages)  # type: ignore
+            count_packages_installed = len(tuple(self._get_project_directories()))
+            if count_packages_specified > count_packages_installed:
+                raise_compiler_error(
+                    f'dbt found {count_packages_specified} package(s) '
+                    f'specified in packages.yml, but only '
+                    f'{count_packages_installed} package(s) installed '
+                    f'in {self.packages_install_path}. Run "dbt deps" to '
+                    f'install package dependencies.'
+                )
             project_paths = itertools.chain(
-                internal_packages, self._get_project_directories()
+                internal_packages,
+                self._get_project_directories()
             )
             for project_name, project in self.load_projects(project_paths):
                 if project_name in all_projects:
                     raise_compiler_error(
-                        f"dbt found more than one package with the name "
+                        f'dbt found more than one package with the name '
                         f'"{project_name}" included in this project. Package '
-                        f"names must be unique in a project. Please rename "
-                        f"one of these packages."
+                        f'names must be unique in a project. Please rename '
+                        f'one of these packages.'
                     )
                 all_projects[project_name] = project
             self.dependencies = all_projects
@@ -337,38 +366,43 @@ class RuntimeConfig(Project, Profile, AdapterRequiredConfig):
     def clear_dependencies(self):
         self.dependencies = None
 
+    # Called by 'load_dependencies' in this class
     def load_projects(
         self, paths: Iterable[Path]
-    ) -> Iterator[Tuple[str, "RuntimeConfig"]]:
+    ) -> Iterator[Tuple[str, 'RuntimeConfig']]:
         for path in paths:
             try:
                 project = self.new_project(str(path))
             except DbtProjectError as e:
                 raise DbtProjectError(
-                    f"Failed to read package: {e}",
-                    result_type="invalid_project",
+                    f'Failed to read package: {e}',
+                    result_type='invalid_project',
                     path=path,
                 ) from e
             else:
                 yield project.project_name, project
 
     def _get_project_directories(self) -> Iterator[Path]:
-        root = Path(self.project_root) / self.modules_path
+        root = Path(self.project_root) / self.packages_install_path
 
         if root.exists():
             for path in root.iterdir():
-                if path.is_dir() and not path.name.startswith("__"):
+                if path.is_dir() and not path.name.startswith('__'):
                     yield path
 
 
 class UnsetCredentials(Credentials):
     def __init__(self):
-        super().__init__("", "")
+        super().__init__('', '')
 
     @property
     def type(self):
         return None
 
+    @property
+    def unique_field(self):
+        return None
+
     def connection_info(self, *args, **kwargs):
         return {}
 
@@ -376,28 +410,21 @@ class UnsetCredentials(Credentials):
         return ()
 
 
-class UnsetConfig(UserConfig):
-    def __getattribute__(self, name):
-        if name in {f.name for f in fields(UserConfig)}:
-            raise AttributeError(f"'UnsetConfig' object has no attribute {name}")
-
-    def __post_serialize__(self, dct):
-        return {}
-
-
+# This is used by UnsetProfileConfig, for commands which do
+# not require a profile, i.e. dbt deps and clean
 class UnsetProfile(Profile):
     def __init__(self):
         self.credentials = UnsetCredentials()
-        self.config = UnsetConfig()
-        self.profile_name = ""
-        self.target_name = ""
+        self.user_config = UserConfig()  # This will be read in _get_rendered_profile
+        self.profile_name = ''
+        self.target_name = ''
         self.threads = -1
 
     def to_target_dict(self):
         return {}
 
     def __getattribute__(self, name):
-        if name in {"profile_name", "target_name", "threads"}:
+        if name in {'profile_name', 'target_name', 'threads'}:
             raise RuntimeException(
                 f'Error: disallowed attribute "{name}" - no profile!'
             )
@@ -405,6 +432,8 @@ class UnsetProfile(Profile):
         return Profile.__getattribute__(self, name)
 
 
+# This class is used by the dbt deps and clean commands, because they don't
+# require a functioning profile.
 @dataclass
 class UnsetProfileConfig(RuntimeConfig):
     """This class acts a lot _like_ a RuntimeConfig, except if your profile is
@@ -421,7 +450,7 @@ class UnsetProfileConfig(RuntimeConfig):
 
     def __getattribute__(self, name):
         # Override __getattribute__ to check that the attribute isn't 'banned'.
-        if name in {"profile_name", "target_name"}:
+        if name in {'profile_name', 'target_name'}:
             raise RuntimeException(
                 f'Error: disallowed attribute "{name}" - no profile!'
             )
@@ -439,8 +468,8 @@ class UnsetProfileConfig(RuntimeConfig):
         project: Project,
         profile: Profile,
         args: Any,
-        dependencies: Optional[Mapping[str, "RuntimeConfig"]] = None,
-    ) -> "RuntimeConfig":
+        dependencies: Optional[Mapping[str, 'RuntimeConfig']] = None,
+    ) -> 'RuntimeConfig':
         """Instantiate a RuntimeConfig from its components.
 
         :param profile: Ignored.
@@ -448,15 +477,15 @@ class UnsetProfileConfig(RuntimeConfig):
         :param args: The parsed command-line arguments.
         :returns RuntimeConfig: The new configuration.
         """
-        cli_vars: Dict[str, Any] = parse_cli_vars(getattr(args, "vars", "{}"))
+        cli_vars: Dict[str, Any] = parse_cli_vars(getattr(args, 'vars', '{}'))
 
         return cls(
             project_name=project.project_name,
             version=project.version,
             project_root=project.project_root,
-            source_paths=project.source_paths,
+            model_paths=project.model_paths,
             macro_paths=project.macro_paths,
-            data_paths=project.data_paths,
+            seed_paths=project.seed_paths,
             test_paths=project.test_paths,
             analysis_paths=project.analysis_paths,
             docs_paths=project.docs_paths,
@@ -465,11 +494,12 @@ class UnsetProfileConfig(RuntimeConfig):
             snapshot_paths=project.snapshot_paths,
             clean_targets=project.clean_targets,
             log_path=project.log_path,
-            modules_path=project.modules_path,
+            packages_install_path=project.packages_install_path,
             quoting=project.quoting,  # we never use this anyway.
             models=project.models,
             on_run_start=project.on_run_start,
             on_run_end=project.on_run_end,
+            dispatch=project.dispatch,
             seeds=project.seeds,
             snapshots=project.snapshots,
             dbt_version=project.dbt_version,
@@ -478,13 +508,16 @@ class UnsetProfileConfig(RuntimeConfig):
             selectors=project.selectors,
             query_comment=project.query_comment,
             sources=project.sources,
+            tests=project.tests,
             vars=project.vars,
             config_version=project.config_version,
             unrendered=project.unrendered,
-            profile_name="",
-            target_name="",
-            config=UnsetConfig(),
-            threads=getattr(args, "threads", 1),
+            project_env_vars=project.project_env_vars,
+            profile_env_vars=profile.profile_env_vars,
+            profile_name='',
+            target_name='',
+            user_config=UserConfig(),
+            threads=getattr(args, 'threads', 1),
             credentials=UnsetCredentials(),
             args=args,
             cli_vars=cli_vars,
@@ -498,21 +531,16 @@ class UnsetProfileConfig(RuntimeConfig):
         profile_renderer: ProfileRenderer,
         profile_name: Optional[str],
     ) -> Profile:
-        try:
-            profile = Profile.render_from_args(args, profile_renderer, profile_name)
-        except (DbtProjectError, DbtProfileError) as exc:
-            logger.debug("Profile not loaded due to error: {}", exc, exc_info=True)
-            logger.info(
-                'No profile "{}" found, continuing with no target', profile_name
-            )
-            # return the poisoned form
-            profile = UnsetProfile()
-            # disable anonymous usage statistics
-            tracking.disable_tracking()
+
+        profile = UnsetProfile()
+        # The profile (for warehouse connection) is not needed, but we want
+        # to get the UserConfig, which is also in profiles.yml
+        user_config = read_user_config(flags.PROFILES_DIR)
+        profile.user_config = user_config
         return profile
 
     @classmethod
-    def from_args(cls: Type[RuntimeConfig], args: Any) -> "RuntimeConfig":
+    def from_args(cls: Type[RuntimeConfig], args: Any) -> 'RuntimeConfig':
         """Given arguments, read in dbt_project.yml from the current directory,
         read in packages.yml if it exists, and use them to find the profile to
         load.
@@ -523,11 +551,12 @@ class UnsetProfileConfig(RuntimeConfig):
         :raises ValidationException: If the cli variables are invalid.
         """
         project, profile = cls.collect_parts(args)
-        if not isinstance(profile, UnsetProfile):
-            # if it's a real profile, return a real config
-            cls = RuntimeConfig
 
-        return cls.from_parts(project=project, profile=profile, args=args)
+        return cls.from_parts(
+            project=project,
+            profile=profile,
+            args=args
+        )
 
 
 UNUSED_RESOURCE_CONFIGURATION_PATH_MESSAGE = """\
@@ -541,6 +570,6 @@ There are {} unused configuration paths:
 def _is_config_used(path, fqns):
     if fqns:
         for fqn in fqns:
-            if len(path) <= len(fqn) and fqn[: len(path)] == path:
+            if len(path) <= len(fqn) and fqn[:len(path)] == path:
                 return True
     return False

core/dbt/config/selectors.py

@@ -1,6 +1,8 @@
 from pathlib import Path
-from typing import Dict, Any
-from dbt.clients.yaml_helper import yaml, Loader, Dumper, load_yaml_text  # noqa: F401
+from typing import Dict, Any, Union
+from dbt.clients.yaml_helper import (  # noqa: F401
+    yaml, Loader, Dumper, load_yaml_text
+)
 from dbt.dataclass_schema import ValidationError
 
 from .renderer import SelectorRenderer
@@ -27,12 +29,14 @@ Validator Error:
 """
 
 
-class SelectorConfig(Dict[str, SelectionSpec]):
+class SelectorConfig(Dict[str, Dict[str, Union[SelectionSpec, bool]]]):
+
     @classmethod
-    def selectors_from_dict(cls, data: Dict[str, Any]) -> "SelectorConfig":
+    def selectors_from_dict(cls, data: Dict[str, Any]) -> 'SelectorConfig':
         try:
             SelectorFile.validate(data)
             selector_file = SelectorFile.from_dict(data)
+            validate_selector_default(selector_file)
             selectors = parse_from_selectors_definition(selector_file)
         except ValidationError as exc:
             yaml_sel_cfg = yaml.dump(exc.instance)
@@ -42,12 +46,12 @@ class SelectorConfig(Dict[str, SelectionSpec]):
                 f"union, intersection, string, dictionary. No lists. "
                 f"\nhttps://docs.getdbt.com/reference/node-selection/"
                 f"yaml-selectors",
-                result_type="invalid_selector",
+                result_type='invalid_selector'
             ) from exc
         except RuntimeException as exc:
             raise DbtSelectorsError(
-                f"Could not read selector file data: {exc}",
-                result_type="invalid_selector",
+                f'Could not read selector file data: {exc}',
+                result_type='invalid_selector',
             ) from exc
 
         return cls(selectors)
@@ -57,28 +61,26 @@ class SelectorConfig(Dict[str, SelectionSpec]):
         cls,
         data: Dict[str, Any],
         renderer: SelectorRenderer,
-    ) -> "SelectorConfig":
+    ) -> 'SelectorConfig':
         try:
             rendered = renderer.render_data(data)
         except (ValidationError, RuntimeException) as exc:
             raise DbtSelectorsError(
-                f"Could not render selector data: {exc}",
-                result_type="invalid_selector",
+                f'Could not render selector data: {exc}',
+                result_type='invalid_selector',
             ) from exc
         return cls.selectors_from_dict(rendered)
 
     @classmethod
     def from_path(
-        cls,
-        path: Path,
-        renderer: SelectorRenderer,
-    ) -> "SelectorConfig":
+        cls, path: Path, renderer: SelectorRenderer,
+    ) -> 'SelectorConfig':
         try:
             data = load_yaml_text(load_file_contents(str(path)))
         except (ValidationError, RuntimeException) as exc:
             raise DbtSelectorsError(
-                f"Could not read selector file: {exc}",
-                result_type="invalid_selector",
+                f'Could not read selector file: {exc}',
+                result_type='invalid_selector',
                 path=path,
             ) from exc
 
@@ -90,7 +92,9 @@ class SelectorConfig(Dict[str, SelectionSpec]):
 
 
 def selector_data_from_root(project_root: str) -> Dict[str, Any]:
-    selector_filepath = resolve_path_from_base("selectors.yml", project_root)
+    selector_filepath = resolve_path_from_base(
+        'selectors.yml', project_root
+    )
 
     if path_exists(selector_filepath):
         selectors_dict = load_yaml_text(load_file_contents(selector_filepath))
@@ -99,20 +103,40 @@ def selector_data_from_root(project_root: str) -> Dict[str, Any]:
     return selectors_dict
 
 
-def selector_config_from_data(selectors_data: Dict[str, Any]) -> SelectorConfig:
+def selector_config_from_data(
+    selectors_data: Dict[str, Any]
+) -> SelectorConfig:
     if not selectors_data:
-        selectors_data = {"selectors": []}
+        selectors_data = {'selectors': []}
 
     try:
         selectors = SelectorConfig.selectors_from_dict(selectors_data)
     except ValidationError as e:
         raise DbtSelectorsError(
             MALFORMED_SELECTOR_ERROR.format(error=str(e.message)),
-            result_type="invalid_selector",
+            result_type='invalid_selector',
         ) from e
     return selectors
 
 
+def validate_selector_default(selector_file: SelectorFile) -> None:
+    """Check if a selector.yml file has more than 1 default key set to true"""
+    default_set: bool = False
+    default_selector_name: Union[str, None] = None
+
+    for selector in selector_file.selectors:
+        if selector.default is True and default_set is False:
+            default_set = True
+            default_selector_name = selector.name
+            continue
+        if selector.default is True and default_set is True:
+            raise DbtSelectorsError(
+                "Error when parsing the selector file. "
+                "Found multiple selectors with `default: true`:"
+                f"{default_selector_name} and {selector.name}"
+            )
+
+
 # These are utilities to clean up the dictionary created from
 # selectors.yml by turning the cli-string format entries into
 # normalized dictionary entries. It parallels the flow in
@@ -120,6 +144,7 @@ def selector_config_from_data(selectors_data: Dict[str, Any]) -> SelectorConfig:
 # be necessary to make changes here. Ideally it would be
 # good to combine the two flows into one at some point.
 class SelectorDict:
+
     @classmethod
     def parse_dict_definition(cls, definition):
         key = list(definition)[0]
@@ -130,10 +155,10 @@ class SelectorDict:
                 new_value = cls.parse_from_definition(sel_def)
                 new_values.append(new_value)
             value = new_values
-        if key == "exclude":
+        if key == 'exclude':
             definition = {key: value}
         elif len(definition) == 1:
-            definition = {"method": key, "value": value}
+            definition = {'method': key, 'value': value}
         return definition
 
     @classmethod
@@ -155,10 +180,10 @@ class SelectorDict:
     def parse_from_definition(cls, definition):
         if isinstance(definition, str):
             definition = SelectionCriteria.dict_from_single_spec(definition)
-        elif "union" in definition:
-            definition = cls.parse_a_definition("union", definition)
-        elif "intersection" in definition:
-            definition = cls.parse_a_definition("intersection", definition)
+        elif 'union' in definition:
+            definition = cls.parse_a_definition('union', definition)
+        elif 'intersection' in definition:
+            definition = cls.parse_a_definition('intersection', definition)
         elif isinstance(definition, dict):
             definition = cls.parse_dict_definition(definition)
         return definition
@@ -169,8 +194,8 @@ class SelectorDict:
     def parse_from_selectors_list(cls, selectors):
         selector_dict = {}
         for selector in selectors:
-            sel_name = selector["name"]
+            sel_name = selector['name']
             selector_dict[sel_name] = selector
-            definition = cls.parse_from_definition(selector["definition"])
-            selector_dict[sel_name]["definition"] = definition
+            definition = cls.parse_from_definition(selector['definition'])
+            selector_dict[sel_name]['definition'] = definition
         return selector_dict

core/dbt/config/utils.py

@@ -1,8 +1,9 @@
 from typing import Dict, Any
 
 from dbt.clients import yaml_helper
+from dbt.events.functions import fire_event
 from dbt.exceptions import raise_compiler_error, ValidationException
-from dbt.logger import GLOBAL_LOGGER as logger
+from dbt.events.types import InvalidVarsYAML
 
 
 def parse_cli_vars(var_string: str) -> Dict[str, Any]:
@@ -15,8 +16,7 @@ def parse_cli_vars(var_string: str) -> Dict[str, Any]:
             type_name = var_type.__name__
             raise_compiler_error(
                 "The --vars argument must be a YAML dictionary, but was "
-                "of type '{}'".format(type_name)
-            )
+                "of type '{}'".format(type_name))
     except ValidationException:
-        logger.error("The YAML provided in the --vars argument is not valid.\n")
+        fire_event(InvalidVarsYAML())
         raise

core/dbt/context/README.md

@@ -0,0 +1 @@
+# Contexts and Jinja rendering

core/dbt/context/__init__.py

@@ -1,531 +0,0 @@
-import json
-import os
-from typing import Any, Dict, NoReturn, Optional, Mapping
-
-from dbt import flags
-from dbt import tracking
-from dbt.clients.jinja import undefined_error, get_rendered
-from dbt.clients.yaml_helper import (  # noqa: F401
-    yaml,
-    safe_load,
-    SafeLoader,
-    Loader,
-    Dumper,
-)
-from dbt.contracts.graph.compiled import CompiledResource
-from dbt.exceptions import raise_compiler_error, MacroReturn
-from dbt.logger import GLOBAL_LOGGER as logger
-from dbt.version import __version__ as dbt_version
-
-# These modules are added to the context. Consider alternative
-# approaches which will extend well to potentially many modules
-import pytz
-import datetime
-import re
-
-
-def get_pytz_module_context() -> Dict[str, Any]:
-    context_exports = pytz.__all__  # type: ignore
-
-    return {name: getattr(pytz, name) for name in context_exports}
-
-
-def get_datetime_module_context() -> Dict[str, Any]:
-    context_exports = ["date", "datetime", "time", "timedelta", "tzinfo"]
-
-    return {name: getattr(datetime, name) for name in context_exports}
-
-
-def get_re_module_context() -> Dict[str, Any]:
-    context_exports = re.__all__
-
-    return {name: getattr(re, name) for name in context_exports}
-
-
-def get_context_modules() -> Dict[str, Dict[str, Any]]:
-    return {
-        "pytz": get_pytz_module_context(),
-        "datetime": get_datetime_module_context(),
-        "re": get_re_module_context(),
-    }
-
-
-class ContextMember:
-    def __init__(self, value, name=None):
-        self.name = name
-        self.inner = value
-
-    def key(self, default):
-        if self.name is None:
-            return default
-        return self.name
-
-
-def contextmember(value):
-    if isinstance(value, str):
-        return lambda v: ContextMember(v, name=value)
-    return ContextMember(value)
-
-
-def contextproperty(value):
-    if isinstance(value, str):
-        return lambda v: ContextMember(property(v), name=value)
-    return ContextMember(property(value))
-
-
-class ContextMeta(type):
-    def __new__(mcls, name, bases, dct):
-        context_members = {}
-        context_attrs = {}
-        new_dct = {}
-
-        for base in bases:
-            context_members.update(getattr(base, "_context_members_", {}))
-            context_attrs.update(getattr(base, "_context_attrs_", {}))
-
-        for key, value in dct.items():
-            if isinstance(value, ContextMember):
-                context_key = value.key(key)
-                context_members[context_key] = value.inner
-                context_attrs[context_key] = key
-                value = value.inner
-            new_dct[key] = value
-        new_dct["_context_members_"] = context_members
-        new_dct["_context_attrs_"] = context_attrs
-        return type.__new__(mcls, name, bases, new_dct)
-
-
-class Var:
-    UndefinedVarError = (
-        "Required var '{}' not found in config:\nVars " "supplied to {} = {}"
-    )
-    _VAR_NOTSET = object()
-
-    def __init__(
-        self,
-        context: Mapping[str, Any],
-        cli_vars: Mapping[str, Any],
-        node: Optional[CompiledResource] = None,
-    ) -> None:
-        self._context: Mapping[str, Any] = context
-        self._cli_vars: Mapping[str, Any] = cli_vars
-        self._node: Optional[CompiledResource] = node
-        self._merged: Mapping[str, Any] = self._generate_merged()
-
-    def _generate_merged(self) -> Mapping[str, Any]:
-        return self._cli_vars
-
-    @property
-    def node_name(self):
-        if self._node is not None:
-            return self._node.name
-        else:
-            return "<Configuration>"
-
-    def get_missing_var(self, var_name):
-        dct = {k: self._merged[k] for k in self._merged}
-        pretty_vars = json.dumps(dct, sort_keys=True, indent=4)
-        msg = self.UndefinedVarError.format(var_name, self.node_name, pretty_vars)
-        raise_compiler_error(msg, self._node)
-
-    def has_var(self, var_name: str):
-        return var_name in self._merged
-
-    def get_rendered_var(self, var_name):
-        raw = self._merged[var_name]
-        # if bool/int/float/etc are passed in, don't compile anything
-        if not isinstance(raw, str):
-            return raw
-
-        return get_rendered(raw, self._context)
-
-    def __call__(self, var_name, default=_VAR_NOTSET):
-        if self.has_var(var_name):
-            return self.get_rendered_var(var_name)
-        elif default is not self._VAR_NOTSET:
-            return default
-        else:
-            return self.get_missing_var(var_name)
-
-
-class BaseContext(metaclass=ContextMeta):
-    def __init__(self, cli_vars):
-        self._ctx = {}
-        self.cli_vars = cli_vars
-
-    def generate_builtins(self):
-        builtins: Dict[str, Any] = {}
-        for key, value in self._context_members_.items():
-            if hasattr(value, "__get__"):
-                # handle properties, bound methods, etc
-                value = value.__get__(self)
-            builtins[key] = value
-        return builtins
-
-    # no dbtClassMixin so this is not an actual override
-    def to_dict(self):
-        self._ctx["context"] = self._ctx
-        builtins = self.generate_builtins()
-        self._ctx["builtins"] = builtins
-        self._ctx.update(builtins)
-        return self._ctx
-
-    @contextproperty
-    def dbt_version(self) -> str:
-        """The `dbt_version` variable returns the installed version of dbt that
-        is currently running. It can be used for debugging or auditing
-        purposes.
-
-        > macros/get_version.sql
-
-            {% macro get_version() %}
-              {% set msg = "The installed version of dbt is: " ~ dbt_version %}
-              {% do log(msg, info=true) %}
-            {% endmacro %}
-
-        Example output:
-
-            $ dbt run-operation get_version
-            The installed version of dbt is 0.16.0
-        """
-        return dbt_version
-
-    @contextproperty
-    def var(self) -> Var:
-        """Variables can be passed from your `dbt_project.yml` file into models
-        during compilation. These variables are useful for configuring packages
-        for deployment in multiple environments, or defining values that should
-        be used across multiple models within a package.
-
-        To add a variable to a model, use the `var()` function:
-
-        > my_model.sql:
-
-            select * from events where event_type = '{{ var("event_type") }}'
-
-        If you try to run this model without supplying an `event_type`
-        variable, you'll receive a compilation error that looks like this:
-
-            Encountered an error:
-            ! Compilation error while compiling model package_name.my_model:
-            ! Required var 'event_type' not found in config:
-            Vars supplied to package_name.my_model = {
-            }
-
-        To supply a variable to a given model, add one or more `vars`
-        dictionaries to the `models` config in your `dbt_project.yml` file.
-        These `vars` are in-scope for all models at or below where they are
-        defined, so place them where they make the most sense. Below are three
-        different placements of the `vars` dict, all of which will make the
-        `my_model` model compile.
-
-        > dbt_project.yml:
-
-            # 1) scoped at the model level
-            models:
-              package_name:
-                my_model:
-                  materialized: view
-                  vars:
-                    event_type: activation
-            # 2) scoped at the package level
-            models:
-              package_name:
-                vars:
-                  event_type: activation
-                my_model:
-                  materialized: view
-            # 3) scoped globally
-            models:
-              vars:
-                event_type: activation
-              package_name:
-                my_model:
-                  materialized: view
-
-        ## Variable default values
-
-        The `var()` function takes an optional second argument, `default`. If
-        this argument is provided, then it will be the default value for the
-        variable if one is not explicitly defined.
-
-        > my_model.sql:
-
-            -- Use 'activation' as the event_type if the variable is not
-            -- defined.
-            select *
-            from events
-            where event_type = '{{ var("event_type", "activation") }}'
-        """
-        return Var(self._ctx, self.cli_vars)
-
-    @contextmember
-    @staticmethod
-    def env_var(var: str, default: Optional[str] = None) -> str:
-        """The env_var() function. Return the environment variable named 'var'.
-        If there is no such environment variable set, return the default.
-
-        If the default is None, raise an exception for an undefined variable.
-        """
-        if var in os.environ:
-            return os.environ[var]
-        elif default is not None:
-            return default
-        else:
-            msg = f"Env var required but not provided: '{var}'"
-            undefined_error(msg)
-
-    if os.environ.get("DBT_MACRO_DEBUGGING"):
-
-        @contextmember
-        @staticmethod
-        def debug():
-            """Enter a debugger at this line in the compiled jinja code."""
-            import sys
-            import ipdb  # type: ignore
-
-            frame = sys._getframe(3)
-            ipdb.set_trace(frame)
-            return ""
-
-    @contextmember("return")
-    @staticmethod
-    def _return(data: Any) -> NoReturn:
-        """The `return` function can be used in macros to return data to the
-        caller. The type of the data (`dict`, `list`, `int`, etc) will be
-        preserved through the return call.
-
-        :param data: The data to return to the caller
-
-
-        > macros/example.sql:
-
-            {% macro get_data() %}
-              {{ return([1,2,3]) }}
-            {% endmacro %}
-
-        > models/my_model.sql:
-
-            select
-              -- getdata() returns a list!
-              {% for i in getdata() %}
-                {{ i }}
-                {% if not loop.last %},{% endif %}
-              {% endfor %}
-
-        """
-        raise MacroReturn(data)
-
-    @contextmember
-    @staticmethod
-    def fromjson(string: str, default: Any = None) -> Any:
-        """The `fromjson` context method can be used to deserialize a json
-        string into a Python object primitive, eg. a `dict` or `list`.
-
-        :param value: The json string to deserialize
-        :param default: A default value to return if the `string` argument
-            cannot be deserialized (optional)
-
-        Usage:
-
-            {% set my_json_str = '{"abc": 123}' %}
-            {% set my_dict = fromjson(my_json_str) %}
-            {% do log(my_dict['abc']) %}
-        """
-        try:
-            return json.loads(string)
-        except ValueError:
-            return default
-
-    @contextmember
-    @staticmethod
-    def tojson(value: Any, default: Any = None, sort_keys: bool = False) -> Any:
-        """The `tojson` context method can be used to serialize a Python
-        object primitive, eg. a `dict` or `list` to a json string.
-
-        :param value: The value serialize to json
-        :param default: A default value to return if the `value` argument
-            cannot be serialized
-        :param sort_keys: If True, sort the keys.
-
-
-        Usage:
-
-            {% set my_dict = {"abc": 123} %}
-            {% set my_json_string = tojson(my_dict) %}
-            {% do log(my_json_string) %}
-        """
-        try:
-            return json.dumps(value, sort_keys=sort_keys)
-        except ValueError:
-            return default
-
-    @contextmember
-    @staticmethod
-    def fromyaml(value: str, default: Any = None) -> Any:
-        """The fromyaml context method can be used to deserialize a yaml string
-        into a Python object primitive, eg. a `dict` or `list`.
-
-        :param value: The yaml string to deserialize
-        :param default: A default value to return if the `string` argument
-            cannot be deserialized (optional)
-
-        Usage:
-
-            {% set my_yml_str -%}
-            dogs:
-             - good
-             - bad
-            {%- endset %}
-            {% set my_dict = fromyaml(my_yml_str) %}
-            {% do log(my_dict['dogs'], info=true) %}
-            -- ["good", "bad"]
-            {% do my_dict['dogs'].pop() }
-            {% do log(my_dict['dogs'], info=true) %}
-            -- ["good"]
-        """
-        try:
-            return safe_load(value)
-        except (AttributeError, ValueError, yaml.YAMLError):
-            return default
-
-    # safe_dump defaults to sort_keys=True, but we act like json.dumps (the
-    # opposite)
-    @contextmember
-    @staticmethod
-    def toyaml(
-        value: Any, default: Optional[str] = None, sort_keys: bool = False
-    ) -> Optional[str]:
-        """The `tojson` context method can be used to serialize a Python
-        object primitive, eg. a `dict` or `list` to a yaml string.
-
-        :param value: The value serialize to yaml
-        :param default: A default value to return if the `value` argument
-            cannot be serialized
-        :param sort_keys: If True, sort the keys.
-
-
-        Usage:
-
-            {% set my_dict = {"abc": 123} %}
-            {% set my_yaml_string = toyaml(my_dict) %}
-            {% do log(my_yaml_string) %}
-        """
-        try:
-            return yaml.safe_dump(data=value, sort_keys=sort_keys)
-        except (ValueError, yaml.YAMLError):
-            return default
-
-    @contextmember
-    @staticmethod
-    def log(msg: str, info: bool = False) -> str:
-        """Logs a line to either the log file or stdout.
-
-        :param msg: The message to log
-        :param info: If `False`, write to the log file. If `True`, write to
-            both the log file and stdout.
-
-        > macros/my_log_macro.sql
-
-            {% macro some_macro(arg1, arg2) %}
-              {{ log("Running some_macro: " ~ arg1 ~ ", " ~ arg2) }}
-            {% endmacro %}"
-        """
-        if info:
-            logger.info(msg)
-        else:
-            logger.debug(msg)
-        return ""
-
-    @contextproperty
-    def run_started_at(self) -> Optional[datetime.datetime]:
-        """`run_started_at` outputs the timestamp that this run started, e.g.
-        `2017-04-21 01:23:45.678`. The `run_started_at` variable is a Python
-        `datetime` object. As of 0.9.1, the timezone of this variable defaults
-        to UTC.
-
-        > run_started_at_example.sql
-
-            select
-                '{{ run_started_at.strftime("%Y-%m-%d") }}' as date_day
-            from ...
-
-
-        To modify the timezone of this variable, use the the `pytz` module:
-
-        > run_started_at_utc.sql
-
-            {% set est = modules.pytz.timezone("America/New_York") %}
-            select
-                '{{ run_started_at.astimezone(est) }}' as run_started_est
-            from ...
-        """
-        if tracking.active_user is not None:
-            return tracking.active_user.run_started_at
-        else:
-            return None
-
-    @contextproperty
-    def invocation_id(self) -> Optional[str]:
-        """invocation_id outputs a UUID generated for this dbt run (useful for
-        auditing)
-        """
-        if tracking.active_user is not None:
-            return tracking.active_user.invocation_id
-        else:
-            return None
-
-    @contextproperty
-    def modules(self) -> Dict[str, Any]:
-        """The `modules` variable in the Jinja context contains useful Python
-        modules for operating on data.
-
-        # datetime
-
-        This variable is a pointer to the Python datetime module.
-
-        Usage:
-
-            {% set dt = modules.datetime.datetime.now() %}
-
-        # pytz
-
-        This variable is a pointer to the Python pytz module.
-
-        Usage:
-
-            {% set dt = modules.datetime.datetime(2002, 10, 27, 6, 0, 0) %}
-            {% set dt_local = modules.pytz.timezone('US/Eastern').localize(dt) %}
-            {{ dt_local }}
-        """  # noqa
-        return get_context_modules()
-
-    @contextproperty
-    def flags(self) -> Any:
-        """The `flags` variable contains true/false values for flags provided
-        on the command line.
-
-        > flags.sql:
-
-            {% if flags.FULL_REFRESH %}
-            drop table ...
-            {% else %}
-            -- no-op
-            {% endif %}
-
-        The list of valid flags are:
-
-        - `flags.STRICT_MODE`: True if `--strict` (or `-S`) was provided on the
-            command line
-        - `flags.FULL_REFRESH`: True if `--full-refresh` was provided on the
-            command line
-        - `flags.NON_DESTRUCTIVE`: True if `--non-destructive` was provided on
-            the command line
-        """
-        return flags
-
-
-def generate_base_context(cli_vars: Dict[str, Any]) -> Dict[str, Any]:
-    ctx = BaseContext(cli_vars)
-    # This is not a Mashumaro to_dict call
-    return ctx.to_dict()

core/dbt/context/base.py

@@ -0,0 +1,578 @@
+import json
+import os
+from typing import (
+    Any, Dict, NoReturn, Optional, Mapping
+)
+
+from dbt import flags
+from dbt import tracking
+from dbt.clients.jinja import get_rendered
+from dbt.clients.yaml_helper import (  # noqa: F401
+    yaml, safe_load, SafeLoader, Loader, Dumper
+)
+from dbt.contracts.graph.compiled import CompiledResource
+from dbt.exceptions import (
+    raise_compiler_error, MacroReturn, raise_parsing_error, disallow_secret_env_var
+)
+from dbt.logger import SECRET_ENV_PREFIX
+from dbt.events.functions import fire_event, get_invocation_id
+from dbt.events.types import MacroEventInfo, MacroEventDebug
+from dbt.version import __version__ as dbt_version
+
+# These modules are added to the context. Consider alternative
+# approaches which will extend well to potentially many modules
+import pytz
+import datetime
+import re
+
+# Contexts in dbt Core
+# Contexts are used for Jinja rendering. They include context methods,
+# executable macros, and various settings that are available in Jinja.
+#
+# Different contexts are used in different places because we allow access
+# to different methods and data in different places. Executable SQL, for
+# example, includes the available macros and the model, while Jinja in
+# yaml files is more limited.
+#
+# The context that is passed to Jinja is always in a dictionary format,
+# not an actual class, so a 'to_dict()' is executed on a context class
+# before it is used for rendering.
+#
+# Each context has a generate_<name>_context function to create the context.
+# ProviderContext subclasses have different generate functions for
+# parsing and for execution.
+#
+# Context class hierarchy
+#
+#   BaseContext -- core/dbt/context/base.py
+#     SecretContext -- core/dbt/context/secret.py
+#     TargetContext -- core/dbt/context/target.py
+#       ConfiguredContext -- core/dbt/context/configured.py
+#         SchemaYamlContext -- core/dbt/context/configured.py
+#           DocsRuntimeContext -- core/dbt/context/configured.py
+#         MacroResolvingContext -- core/dbt/context/configured.py
+#         ManifestContext -- core/dbt/context/manifest.py
+#           QueryHeaderContext -- core/dbt/context/manifest.py
+#           ProviderContext -- core/dbt/context/provider.py
+#             MacroContext -- core/dbt/context/provider.py
+#             ModelContext -- core/dbt/context/provider.py
+#             TestContext -- core/dbt/context/provider.py
+
+
+def get_pytz_module_context() -> Dict[str, Any]:
+    context_exports = pytz.__all__  # type: ignore
+
+    return {
+        name: getattr(pytz, name) for name in context_exports
+    }
+
+
+def get_datetime_module_context() -> Dict[str, Any]:
+    context_exports = [
+        'date',
+        'datetime',
+        'time',
+        'timedelta',
+        'tzinfo'
+    ]
+
+    return {
+        name: getattr(datetime, name) for name in context_exports
+    }
+
+
+def get_re_module_context() -> Dict[str, Any]:
+    context_exports = re.__all__
+
+    return {
+        name: getattr(re, name) for name in context_exports
+    }
+
+
+def get_context_modules() -> Dict[str, Dict[str, Any]]:
+    return {
+        'pytz': get_pytz_module_context(),
+        'datetime': get_datetime_module_context(),
+        're': get_re_module_context(),
+    }
+
+
+class ContextMember:
+    def __init__(self, value, name=None):
+        self.name = name
+        self.inner = value
+
+    def key(self, default):
+        if self.name is None:
+            return default
+        return self.name
+
+
+def contextmember(value):
+    if isinstance(value, str):
+        return lambda v: ContextMember(v, name=value)
+    return ContextMember(value)
+
+
+def contextproperty(value):
+    if isinstance(value, str):
+        return lambda v: ContextMember(property(v), name=value)
+    return ContextMember(property(value))
+
+
+class ContextMeta(type):
+    def __new__(mcls, name, bases, dct):
+        context_members = {}
+        context_attrs = {}
+        new_dct = {}
+
+        for base in bases:
+            context_members.update(getattr(base, '_context_members_', {}))
+            context_attrs.update(getattr(base, '_context_attrs_', {}))
+
+        for key, value in dct.items():
+            if isinstance(value, ContextMember):
+                context_key = value.key(key)
+                context_members[context_key] = value.inner
+                context_attrs[context_key] = key
+                value = value.inner
+            new_dct[key] = value
+        new_dct['_context_members_'] = context_members
+        new_dct['_context_attrs_'] = context_attrs
+        return type.__new__(mcls, name, bases, new_dct)
+
+
+class Var:
+    UndefinedVarError = "Required var '{}' not found in config:\nVars "\
+                        "supplied to {} = {}"
+    _VAR_NOTSET = object()
+
+    def __init__(
+        self,
+        context: Mapping[str, Any],
+        cli_vars: Mapping[str, Any],
+        node: Optional[CompiledResource] = None
+    ) -> None:
+        self._context: Mapping[str, Any] = context
+        self._cli_vars: Mapping[str, Any] = cli_vars
+        self._node: Optional[CompiledResource] = node
+        self._merged: Mapping[str, Any] = self._generate_merged()
+
+    def _generate_merged(self) -> Mapping[str, Any]:
+        return self._cli_vars
+
+    @property
+    def node_name(self):
+        if self._node is not None:
+            return self._node.name
+        else:
+            return '<Configuration>'
+
+    def get_missing_var(self, var_name):
+        dct = {k: self._merged[k] for k in self._merged}
+        pretty_vars = json.dumps(dct, sort_keys=True, indent=4)
+        msg = self.UndefinedVarError.format(
+            var_name, self.node_name, pretty_vars
+        )
+        raise_compiler_error(msg, self._node)
+
+    def has_var(self, var_name: str):
+        return var_name in self._merged
+
+    def get_rendered_var(self, var_name):
+        raw = self._merged[var_name]
+        # if bool/int/float/etc are passed in, don't compile anything
+        if not isinstance(raw, str):
+            return raw
+
+        return get_rendered(raw, self._context)
+
+    def __call__(self, var_name, default=_VAR_NOTSET):
+        if self.has_var(var_name):
+            return self.get_rendered_var(var_name)
+        elif default is not self._VAR_NOTSET:
+            return default
+        else:
+            return self.get_missing_var(var_name)
+
+
+class BaseContext(metaclass=ContextMeta):
+    # subclass is TargetContext
+    def __init__(self, cli_vars):
+        self._ctx = {}
+        self.cli_vars = cli_vars
+        self.env_vars = {}
+
+    def generate_builtins(self):
+        builtins: Dict[str, Any] = {}
+        for key, value in self._context_members_.items():
+            if hasattr(value, '__get__'):
+                # handle properties, bound methods, etc
+                value = value.__get__(self)
+            builtins[key] = value
+        return builtins
+
+    # no dbtClassMixin so this is not an actual override
+    def to_dict(self):
+        self._ctx['context'] = self._ctx
+        builtins = self.generate_builtins()
+        self._ctx['builtins'] = builtins
+        self._ctx.update(builtins)
+        return self._ctx
+
+    @contextproperty
+    def dbt_version(self) -> str:
+        """The `dbt_version` variable returns the installed version of dbt that
+        is currently running. It can be used for debugging or auditing
+        purposes.
+
+        > macros/get_version.sql
+
+            {% macro get_version() %}
+              {% set msg = "The installed version of dbt is: " ~ dbt_version %}
+              {% do log(msg, info=true) %}
+            {% endmacro %}
+
+        Example output:
+
+            $ dbt run-operation get_version
+            The installed version of dbt is 0.16.0
+        """
+        return dbt_version
+
+    @contextproperty
+    def var(self) -> Var:
+        """Variables can be passed from your `dbt_project.yml` file into models
+        during compilation. These variables are useful for configuring packages
+        for deployment in multiple environments, or defining values that should
+        be used across multiple models within a package.
+
+        To add a variable to a model, use the `var()` function:
+
+        > my_model.sql:
+
+            select * from events where event_type = '{{ var("event_type") }}'
+
+        If you try to run this model without supplying an `event_type`
+        variable, you'll receive a compilation error that looks like this:
+
+            Encountered an error:
+            ! Compilation error while compiling model package_name.my_model:
+            ! Required var 'event_type' not found in config:
+            Vars supplied to package_name.my_model = {
+            }
+
+        To supply a variable to a given model, add one or more `vars`
+        dictionaries to the `models` config in your `dbt_project.yml` file.
+        These `vars` are in-scope for all models at or below where they are
+        defined, so place them where they make the most sense. Below are three
+        different placements of the `vars` dict, all of which will make the
+        `my_model` model compile.
+
+        > dbt_project.yml:
+
+            # 1) scoped at the model level
+            models:
+              package_name:
+                my_model:
+                  materialized: view
+                  vars:
+                    event_type: activation
+            # 2) scoped at the package level
+            models:
+              package_name:
+                vars:
+                  event_type: activation
+                my_model:
+                  materialized: view
+            # 3) scoped globally
+            models:
+              vars:
+                event_type: activation
+              package_name:
+                my_model:
+                  materialized: view
+
+        ## Variable default values
+
+        The `var()` function takes an optional second argument, `default`. If
+        this argument is provided, then it will be the default value for the
+        variable if one is not explicitly defined.
+
+        > my_model.sql:
+
+            -- Use 'activation' as the event_type if the variable is not
+            -- defined.
+            select *
+            from events
+            where event_type = '{{ var("event_type", "activation") }}'
+        """
+        return Var(self._ctx, self.cli_vars)
+
+    @contextmember
+    def env_var(self, var: str, default: Optional[str] = None) -> str:
+        """The env_var() function. Return the environment variable named 'var'.
+        If there is no such environment variable set, return the default.
+
+        If the default is None, raise an exception for an undefined variable.
+        """
+        return_value = None
+        if var.startswith(SECRET_ENV_PREFIX):
+            disallow_secret_env_var(var)
+        if var in os.environ:
+            return_value = os.environ[var]
+        elif default is not None:
+            return_value = default
+
+        if return_value is not None:
+            self.env_vars[var] = return_value
+            return return_value
+        else:
+            msg = f"Env var required but not provided: '{var}'"
+            raise_parsing_error(msg)
+
+    if os.environ.get('DBT_MACRO_DEBUGGING'):
+        @contextmember
+        @staticmethod
+        def debug():
+            """Enter a debugger at this line in the compiled jinja code."""
+            import sys
+            import ipdb  # type: ignore
+            frame = sys._getframe(3)
+            ipdb.set_trace(frame)
+            return ''
+
+    @contextmember('return')
+    @staticmethod
+    def _return(data: Any) -> NoReturn:
+        """The `return` function can be used in macros to return data to the
+        caller. The type of the data (`dict`, `list`, `int`, etc) will be
+        preserved through the return call.
+
+        :param data: The data to return to the caller
+
+
+        > macros/example.sql:
+
+            {% macro get_data() %}
+              {{ return([1,2,3]) }}
+            {% endmacro %}
+
+        > models/my_model.sql:
+
+            select
+              -- getdata() returns a list!
+              {% for i in getdata() %}
+                {{ i }}
+                {% if not loop.last %},{% endif %}
+              {% endfor %}
+
+        """
+        raise MacroReturn(data)
+
+    @contextmember
+    @staticmethod
+    def fromjson(string: str, default: Any = None) -> Any:
+        """The `fromjson` context method can be used to deserialize a json
+        string into a Python object primitive, eg. a `dict` or `list`.
+
+        :param value: The json string to deserialize
+        :param default: A default value to return if the `string` argument
+            cannot be deserialized (optional)
+
+        Usage:
+
+            {% set my_json_str = '{"abc": 123}' %}
+            {% set my_dict = fromjson(my_json_str) %}
+            {% do log(my_dict['abc']) %}
+        """
+        try:
+            return json.loads(string)
+        except ValueError:
+            return default
+
+    @contextmember
+    @staticmethod
+    def tojson(
+        value: Any, default: Any = None, sort_keys: bool = False
+    ) -> Any:
+        """The `tojson` context method can be used to serialize a Python
+        object primitive, eg. a `dict` or `list` to a json string.
+
+        :param value: The value serialize to json
+        :param default: A default value to return if the `value` argument
+            cannot be serialized
+        :param sort_keys: If True, sort the keys.
+
+
+        Usage:
+
+            {% set my_dict = {"abc": 123} %}
+            {% set my_json_string = tojson(my_dict) %}
+            {% do log(my_json_string) %}
+        """
+        try:
+            return json.dumps(value, sort_keys=sort_keys)
+        except ValueError:
+            return default
+
+    @contextmember
+    @staticmethod
+    def fromyaml(value: str, default: Any = None) -> Any:
+        """The fromyaml context method can be used to deserialize a yaml string
+        into a Python object primitive, eg. a `dict` or `list`.
+
+        :param value: The yaml string to deserialize
+        :param default: A default value to return if the `string` argument
+            cannot be deserialized (optional)
+
+        Usage:
+
+            {% set my_yml_str -%}
+            dogs:
+             - good
+             - bad
+            {%- endset %}
+            {% set my_dict = fromyaml(my_yml_str) %}
+            {% do log(my_dict['dogs'], info=true) %}
+            -- ["good", "bad"]
+            {% do my_dict['dogs'].pop() }
+            {% do log(my_dict['dogs'], info=true) %}
+            -- ["good"]
+        """
+        try:
+            return safe_load(value)
+        except (AttributeError, ValueError, yaml.YAMLError):
+            return default
+
+    # safe_dump defaults to sort_keys=True, but we act like json.dumps (the
+    # opposite)
+    @contextmember
+    @staticmethod
+    def toyaml(
+        value: Any, default: Optional[str] = None, sort_keys: bool = False
+    ) -> Optional[str]:
+        """The `tojson` context method can be used to serialize a Python
+        object primitive, eg. a `dict` or `list` to a yaml string.
+
+        :param value: The value serialize to yaml
+        :param default: A default value to return if the `value` argument
+            cannot be serialized
+        :param sort_keys: If True, sort the keys.
+
+
+        Usage:
+
+            {% set my_dict = {"abc": 123} %}
+            {% set my_yaml_string = toyaml(my_dict) %}
+            {% do log(my_yaml_string) %}
+        """
+        try:
+            return yaml.safe_dump(data=value, sort_keys=sort_keys)
+        except (ValueError, yaml.YAMLError):
+            return default
+
+    @contextmember
+    @staticmethod
+    def log(msg: str, info: bool = False) -> str:
+        """Logs a line to either the log file or stdout.
+
+        :param msg: The message to log
+        :param info: If `False`, write to the log file. If `True`, write to
+            both the log file and stdout.
+
+        > macros/my_log_macro.sql
+
+            {% macro some_macro(arg1, arg2) %}
+              {{ log("Running some_macro: " ~ arg1 ~ ", " ~ arg2) }}
+            {% endmacro %}"
+        """
+        if info:
+            fire_event(MacroEventInfo(msg=msg))
+        else:
+            fire_event(MacroEventDebug(msg=msg))
+        return ''
+
+    @contextproperty
+    def run_started_at(self) -> Optional[datetime.datetime]:
+        """`run_started_at` outputs the timestamp that this run started, e.g.
+        `2017-04-21 01:23:45.678`. The `run_started_at` variable is a Python
+        `datetime` object. As of 0.9.1, the timezone of this variable defaults
+        to UTC.
+
+        > run_started_at_example.sql
+
+            select
+                '{{ run_started_at.strftime("%Y-%m-%d") }}' as date_day
+            from ...
+
+
+        To modify the timezone of this variable, use the the `pytz` module:
+
+        > run_started_at_utc.sql
+
+            {% set est = modules.pytz.timezone("America/New_York") %}
+            select
+                '{{ run_started_at.astimezone(est) }}' as run_started_est
+            from ...
+        """
+        if tracking.active_user is not None:
+            return tracking.active_user.run_started_at
+        else:
+            return None
+
+    @contextproperty
+    def invocation_id(self) -> Optional[str]:
+        """invocation_id outputs a UUID generated for this dbt run (useful for
+        auditing)
+        """
+        return get_invocation_id()
+
+    @contextproperty
+    def modules(self) -> Dict[str, Any]:
+        """The `modules` variable in the Jinja context contains useful Python
+        modules for operating on data.
+
+        # datetime
+
+        This variable is a pointer to the Python datetime module.
+
+        Usage:
+
+            {% set dt = modules.datetime.datetime.now() %}
+
+        # pytz
+
+        This variable is a pointer to the Python pytz module.
+
+        Usage:
+
+            {% set dt = modules.datetime.datetime(2002, 10, 27, 6, 0, 0) %}
+            {% set dt_local = modules.pytz.timezone('US/Eastern').localize(dt) %}
+            {{ dt_local }}
+        """  # noqa
+        return get_context_modules()
+
+    @contextproperty
+    def flags(self) -> Any:
+        """The `flags` variable contains true/false values for flags provided
+        on the command line.
+
+        > flags.sql:
+
+            {% if flags.FULL_REFRESH %}
+            drop table ...
+            {% else %}
+            -- no-op
+            {% endif %}
+
+        This supports all flags defined in flags submodule (core/dbt/flags.py)
+        TODO: Replace with object that provides read-only access to flag values
+        """
+        return flags
+
+
+def generate_base_context(cli_vars: Dict[str, Any]) -> Dict[str, Any]:
+    ctx = BaseContext(cli_vars)
+    # This is not a Mashumaro to_dict call
+    return ctx.to_dict()

core/dbt/context/configured.py

@@ -1,17 +1,23 @@
-from typing import Any, Dict
+import os
+from typing import Any, Dict, Optional
 
 from dbt.contracts.connection import AdapterRequiredConfig
+from dbt.logger import SECRET_ENV_PREFIX
 from dbt.node_types import NodeType
 from dbt.utils import MultiDict
 
-from dbt.context import contextproperty, Var
+from dbt.context.base import contextproperty, contextmember, Var
 from dbt.context.target import TargetContext
+from dbt.exceptions import raise_parsing_error, disallow_secret_env_var
 
 
 class ConfiguredContext(TargetContext):
+    # subclasses are SchemaYamlContext, MacroResolvingContext, ManifestContext
     config: AdapterRequiredConfig
 
-    def __init__(self, config: AdapterRequiredConfig) -> None:
+    def __init__(
+        self, config: AdapterRequiredConfig
+    ) -> None:
         super().__init__(config, config.cli_vars)
 
     @contextproperty
@@ -61,18 +67,64 @@ class ConfiguredVar(Var):
         return self.get_missing_var(var_name)
 
 
+class SchemaYamlVars():
+    def __init__(self):
+        self.env_vars = {}
+        self.vars = {}
+
+
 class SchemaYamlContext(ConfiguredContext):
-    def __init__(self, config, project_name: str):
+    # subclass is DocsRuntimeContext
+    def __init__(self, config, project_name: str, schema_yaml_vars: Optional[SchemaYamlVars]):
         super().__init__(config)
         self._project_name = project_name
+        self.schema_yaml_vars = schema_yaml_vars
 
     @contextproperty
     def var(self) -> ConfiguredVar:
-        return ConfiguredVar(self._ctx, self.config, self._project_name)
+        return ConfiguredVar(
+            self._ctx, self.config, self._project_name
+        )
+
+    @contextmember
+    def env_var(self, var: str, default: Optional[str] = None) -> str:
+        return_value = None
+        if var.startswith(SECRET_ENV_PREFIX):
+            disallow_secret_env_var(var)
+        if var in os.environ:
+            return_value = os.environ[var]
+        elif default is not None:
+            return_value = default
+
+        if return_value is not None:
+            if self.schema_yaml_vars:
+                self.schema_yaml_vars.env_vars[var] = return_value
+            return return_value
+        else:
+            msg = f"Env var required but not provided: '{var}'"
+            raise_parsing_error(msg)
 
 
-def generate_schema_yml(
-    config: AdapterRequiredConfig, project_name: str
+class MacroResolvingContext(ConfiguredContext):
+    def __init__(self, config):
+        super().__init__(config)
+
+    @contextproperty
+    def var(self) -> ConfiguredVar:
+        return ConfiguredVar(
+            self._ctx, self.config, self.config.project_name
+        )
+
+
+def generate_schema_yml_context(
+        config: AdapterRequiredConfig, project_name: str, schema_yaml_vars: SchemaYamlVars = None
 ) -> Dict[str, Any]:
-    ctx = SchemaYamlContext(config, project_name)
+    ctx = SchemaYamlContext(config, project_name, schema_yaml_vars)
+    return ctx.to_dict()
+
+
+def generate_macro_context(
+    config: AdapterRequiredConfig,
+) -> Dict[str, Any]:
+    ctx = MacroResolvingContext(config)
     return ctx.to_dict()

core/dbt/context/context_config.py

@@ -17,8 +17,8 @@ class ModelParts(IsFQNResource):
     package_name: str
 
 
-T = TypeVar("T")  # any old type
-C = TypeVar("C", bound=BaseConfig)
+T = TypeVar('T')  # any old type
+C = TypeVar('C', bound=BaseConfig)
 
 
 class ConfigSource:
@@ -36,13 +36,15 @@ class UnrenderedConfig(ConfigSource):
     def get_config_dict(self, resource_type: NodeType) -> Dict[str, Any]:
         unrendered = self.project.unrendered.project_dict
         if resource_type == NodeType.Seed:
-            model_configs = unrendered.get("seeds")
+            model_configs = unrendered.get('seeds')
         elif resource_type == NodeType.Snapshot:
-            model_configs = unrendered.get("snapshots")
+            model_configs = unrendered.get('snapshots')
         elif resource_type == NodeType.Source:
-            model_configs = unrendered.get("sources")
+            model_configs = unrendered.get('sources')
+        elif resource_type == NodeType.Test:
+            model_configs = unrendered.get('tests')
         else:
-            model_configs = unrendered.get("models")
+            model_configs = unrendered.get('models')
 
         if model_configs is None:
             return {}
@@ -61,6 +63,8 @@ class RenderedConfig(ConfigSource):
             model_configs = self.project.snapshots
         elif resource_type == NodeType.Source:
             model_configs = self.project.sources
+        elif resource_type == NodeType.Test:
+            model_configs = self.project.tests
         else:
             model_configs = self.project.models
         return model_configs
@@ -79,8 +83,8 @@ class BaseContextConfigGenerator(Generic[T]):
         dependencies = self._active_project.load_dependencies()
         if project_name not in dependencies:
             raise InternalException(
-                f"Project name {project_name} not found in dependencies "
-                f"(found {list(dependencies)})"
+                f'Project name {project_name} not found in dependencies '
+                f'(found {list(dependencies)})'
             )
         return dependencies[project_name]
 
@@ -92,8 +96,8 @@ class BaseContextConfigGenerator(Generic[T]):
         for level_config in fqn_search(model_configs, fqn):
             result = {}
             for key, value in level_config.items():
-                if key.startswith("+"):
-                    result[key[1:]] = deepcopy(value)
+                if key.startswith('+'):
+                    result[key[1:].strip()] = deepcopy(value)
                 elif not isinstance(value, dict):
                     result[key] = deepcopy(value)
 
@@ -116,11 +120,12 @@ class BaseContextConfigGenerator(Generic[T]):
 
     def calculate_node_config(
         self,
-        config_calls: List[Dict[str, Any]],
+        config_call_dict: Dict[str, Any],
         fqn: List[str],
         resource_type: NodeType,
         project_name: str,
         base: bool,
+        patch_config_dict: Dict[str, Any] = None
     ) -> BaseConfig:
         own_config = self.get_node_project(project_name)
 
@@ -130,8 +135,15 @@ class BaseContextConfigGenerator(Generic[T]):
         for fqn_config in project_configs:
             result = self._update_from_config(result, fqn_config)
 
-        for config_call in config_calls:
-            result = self._update_from_config(result, config_call)
+        # When schema files patch config, it has lower precedence than
+        # config in the models (config_call_dict), so we add the patch_config_dict
+        # before the config_call_dict
+        if patch_config_dict:
+            result = self._update_from_config(result, patch_config_dict)
+
+        # config_calls are created in the 'experimental' model parser and
+        # the ParseConfigObject (via add_config_call)
+        result = self._update_from_config(result, config_call_dict)
 
         if own_config.project_name != self._active_project.project_name:
             for fqn_config in self._active_project_configs(fqn, resource_type):
@@ -143,11 +155,12 @@ class BaseContextConfigGenerator(Generic[T]):
     @abstractmethod
     def calculate_node_config_dict(
         self,
-        config_calls: List[Dict[str, Any]],
+        config_call_dict: Dict[str, Any],
         fqn: List[str],
         resource_type: NodeType,
         project_name: str,
         base: bool,
+        patch_config_dict: Dict[str, Any],
     ) -> Dict[str, Any]:
         ...
 
@@ -171,25 +184,31 @@ class ContextConfigGenerator(BaseContextConfigGenerator[C]):
     def _update_from_config(
         self, result: C, partial: Dict[str, Any], validate: bool = False
     ) -> C:
-        translated = self._active_project.credentials.translate_aliases(partial)
+        translated = self._active_project.credentials.translate_aliases(
+            partial
+        )
         return result.update_from(
-            translated, self._active_project.credentials.type, validate=validate
+            translated,
+            self._active_project.credentials.type,
+            validate=validate
         )
 
     def calculate_node_config_dict(
         self,
-        config_calls: List[Dict[str, Any]],
+        config_call_dict: Dict[str, Any],
         fqn: List[str],
         resource_type: NodeType,
         project_name: str,
         base: bool,
+        patch_config_dict: dict = None
     ) -> Dict[str, Any]:
         config = self.calculate_node_config(
-            config_calls=config_calls,
+            config_call_dict=config_call_dict,
             fqn=fqn,
             resource_type=resource_type,
             project_name=project_name,
             base=base,
+            patch_config_dict=patch_config_dict
         )
         finalized = config.finalize_and_validate()
         return finalized.to_dict(omit_none=True)
@@ -201,21 +220,27 @@ class UnrenderedConfigGenerator(BaseContextConfigGenerator[Dict[str, Any]]):
 
     def calculate_node_config_dict(
         self,
-        config_calls: List[Dict[str, Any]],
+        config_call_dict: Dict[str, Any],
         fqn: List[str],
         resource_type: NodeType,
         project_name: str,
         base: bool,
+        patch_config_dict: dict = None
     ) -> Dict[str, Any]:
         return self.calculate_node_config(
-            config_calls=config_calls,
+            config_call_dict=config_call_dict,
             fqn=fqn,
             resource_type=resource_type,
             project_name=project_name,
             base=base,
+            patch_config_dict=patch_config_dict
         )
 
-    def initial_result(self, resource_type: NodeType, base: bool) -> Dict[str, Any]:
+    def initial_result(
+        self,
+        resource_type: NodeType,
+        base: bool
+    ) -> Dict[str, Any]:
         return {}
 
     def _update_from_config(
@@ -224,7 +249,9 @@ class UnrenderedConfigGenerator(BaseContextConfigGenerator[Dict[str, Any]]):
         partial: Dict[str, Any],
         validate: bool = False,
     ) -> Dict[str, Any]:
-        translated = self._active_project.credentials.translate_aliases(partial)
+        translated = self._active_project.credentials.translate_aliases(
+            partial
+        )
         result.update(translated)
         return result
 
@@ -237,20 +264,39 @@ class ContextConfig:
         resource_type: NodeType,
         project_name: str,
     ) -> None:
-        self._config_calls: List[Dict[str, Any]] = []
+        self._config_call_dict: Dict[str, Any] = {}
         self._active_project = active_project
         self._fqn = fqn
         self._resource_type = resource_type
         self._project_name = project_name
 
-    def update_in_model_config(self, opts: Dict[str, Any]) -> None:
-        self._config_calls.append(opts)
+    def add_config_call(self, opts: Dict[str, Any]) -> None:
+        dct = self._config_call_dict
+        self._add_config_call(dct, opts)
+
+    @classmethod
+    def _add_config_call(cls, config_call_dict, opts: Dict[str, Any]) -> None:
+        for k, v in opts.items():
+            # MergeBehavior for post-hook and pre-hook is to collect all
+            # values, instead of overwriting
+            if k in BaseConfig.mergebehavior['append']:
+                if not isinstance(v, list):
+                    v = [v]
+            if k in BaseConfig.mergebehavior['update'] and not isinstance(v, dict):
+                raise InternalException(f'expected dict, got {v}')
+            if k in config_call_dict and isinstance(config_call_dict[k], list):
+                config_call_dict[k].extend(v)
+            elif k in config_call_dict and isinstance(config_call_dict[k], dict):
+                config_call_dict[k].update(v)
+            else:
+                config_call_dict[k] = v
 
     def build_config_dict(
         self,
         base: bool = False,
         *,
         rendered: bool = True,
+        patch_config_dict: dict = None
     ) -> Dict[str, Any]:
         if rendered:
             src = ContextConfigGenerator(self._active_project)
@@ -258,9 +304,10 @@ class ContextConfig:
             src = UnrenderedConfigGenerator(self._active_project)
 
         return src.calculate_node_config_dict(
-            config_calls=self._config_calls,
+            config_call_dict=self._config_call_dict,
             fqn=self._fqn,
             resource_type=self._resource_type,
             project_name=self._project_name,
             base=base,
+            patch_config_dict=patch_config_dict
         )

core/dbt/context/docs.py

@@ -1,4 +1,6 @@
-from typing import Any, Dict, Union
+from typing import (
+    Any, Dict, Union
+)
 
 from dbt.exceptions import (
     doc_invalid_args,
@@ -9,7 +11,7 @@ from dbt.contracts.graph.compiled import CompileResultNode
 from dbt.contracts.graph.manifest import Manifest
 from dbt.contracts.graph.parsed import ParsedMacro
 
-from dbt.context import contextmember
+from dbt.context.base import contextmember
 from dbt.context.configured import SchemaYamlContext
 
 
@@ -21,7 +23,7 @@ class DocsRuntimeContext(SchemaYamlContext):
         manifest: Manifest,
         current_project: str,
     ) -> None:
-        super().__init__(config, current_project)
+        super().__init__(config, current_project, None)
         self.node = node
         self.manifest = manifest
 
@@ -55,20 +57,25 @@ class DocsRuntimeContext(SchemaYamlContext):
         else:
             doc_invalid_args(self.node, args)
 
+        # ParsedDocumentation
         target_doc = self.manifest.resolve_doc(
             doc_name,
             doc_package_name,
             self._project_name,
             self.node.package_name,
         )
-
-        if target_doc is None:
+        if target_doc:
+            file_id = target_doc.file_id
+            if file_id in self.manifest.files:
+                source_file = self.manifest.files[file_id]
+                source_file.add_node(self.node.unique_id)
+        else:
             doc_target_not_found(self.node, doc_name, doc_package_name)
 
         return target_doc.block_contents
 
 
-def generate_runtime_docs(
+def generate_runtime_docs_context(
     config: RuntimeConfig,
     target: Any,
     manifest: Manifest,

core/dbt/context/macro_resolver.py

@@ -1,4 +1,6 @@
-from typing import Dict, MutableMapping, Optional
+from typing import (
+    Dict, MutableMapping, Optional
+)
 from dbt.contracts.graph.parsed import ParsedMacro
 from dbt.exceptions import raise_duplicate_macro_name, raise_compiler_error
 from dbt.include.global_project import PROJECT_NAME as GLOBAL_PROJECT_NAME
@@ -12,8 +14,12 @@ MacroNamespace = Dict[str, ParsedMacro]
 # so that higher precedence macros are found first.
 # This functionality is also provided by the MacroNamespace,
 # but the intention is to eventually replace that class.
-# This enables us to get the macor unique_id without
+# This enables us to get the macro unique_id without
 # processing every macro in the project.
+# Note: the root project macros override everything in the
+# dbt internal projects. External projects (dependencies) will
+# use their own macros first, then pull from the root project
+# followed by dbt internal projects.
 class MacroResolver:
     def __init__(
         self,
@@ -43,20 +49,32 @@ class MacroResolver:
         for pkg in reversed(self.internal_package_names):
             if pkg in self.internal_packages:
                 # Turn the internal packages into a flat namespace
-                self.internal_packages_namespace.update(self.internal_packages[pkg])
+                self.internal_packages_namespace.update(
+                    self.internal_packages[pkg])
 
+    # search order:
+    # local_namespace (package of particular node), not including
+    #    the internal packages or the root package
+    #    This means that within an extra package, it uses its own macros
+    # root package namespace
+    # non-internal packages (that aren't local or root)
+    # dbt internal packages
     def _build_macros_by_name(self):
         macros_by_name = {}
-        # search root package macros
-        for macro in self.root_package_macros.values():
+
+        # all internal packages (already in the right order)
+        for macro in self.internal_packages_namespace.values():
             macros_by_name[macro.name] = macro
-        # search miscellaneous non-internal packages
+
+        # non-internal packages
         for fnamespace in self.packages.values():
             for macro in fnamespace.values():
                 macros_by_name[macro.name] = macro
-        # search all internal packages
-        for macro in self.internal_packages_namespace.values():
+
+        # root package macros
+        for macro in self.root_package_macros.values():
             macros_by_name[macro.name] = macro
+
         self.macros_by_name = macros_by_name
 
     def _add_macro_to(
@@ -71,7 +89,9 @@ class MacroResolver:
             package_namespaces[macro.package_name] = namespace
 
         if macro.name in namespace:
-            raise_duplicate_macro_name(macro, macro, macro.package_name)
+            raise_duplicate_macro_name(
+                macro, macro, macro.package_name
+            )
         package_namespaces[macro.package_name][macro.name] = macro
 
     def add_macro(self, macro: ParsedMacro):
@@ -92,20 +112,26 @@ class MacroResolver:
         for macro in self.macros.values():
             self.add_macro(macro)
 
-    def get_macro_id(self, local_package, macro_name):
+    def get_macro(self, local_package, macro_name):
         local_package_macros = {}
-        if (
-            local_package not in self.internal_package_names
-            and local_package in self.packages
-        ):
+        if (local_package not in self.internal_package_names and
+                local_package in self.packages):
             local_package_macros = self.packages[local_package]
         # First: search the local packages for this macro
         if macro_name in local_package_macros:
-            return local_package_macros[macro_name].unique_id
+            return local_package_macros[macro_name]
+        # Now look up in the standard search order
         if macro_name in self.macros_by_name:
-            return self.macros_by_name[macro_name].unique_id
+            return self.macros_by_name[macro_name]
         return None
 
+    def get_macro_id(self, local_package, macro_name):
+        macro = self.get_macro(local_package, macro_name)
+        if macro is None:
+            return None
+        else:
+            return macro.unique_id
+
 
 # Currently this is just used by test processing in the schema
 # parser (in connection with the MacroResolver). Future work
@@ -114,22 +140,42 @@ class MacroResolver:
 # is that you can limit the number of macros provided to the
 # context dictionary in the 'to_dict' manifest method.
 class TestMacroNamespace:
-    def __init__(self, macro_resolver, ctx, node, thread_ctx, depends_on_macros):
+    def __init__(
+        self, macro_resolver, ctx, node, thread_ctx, depends_on_macros
+    ):
         self.macro_resolver = macro_resolver
         self.ctx = ctx
-        self.node = node
+        self.node = node  # can be none
         self.thread_ctx = thread_ctx
-        local_namespace = {}
+        self.local_namespace = {}
+        self.project_namespace = {}
         if depends_on_macros:
-            for macro_unique_id in depends_on_macros:
-                macro = self.manifest.macros[macro_unique_id]
-                local_namespace[macro.name] = MacroGenerator(
-                    macro,
-                    self.ctx,
-                    self.node,
-                    self.thread_ctx,
-                )
-        self.local_namespace = local_namespace
+            dep_macros = []
+            self.recursively_get_depends_on_macros(depends_on_macros, dep_macros)
+            for macro_unique_id in dep_macros:
+                if macro_unique_id in self.macro_resolver.macros:
+                    # Split up the macro unique_id to get the project_name
+                    (_, project_name, macro_name) = macro_unique_id.split('.')
+                    # Save the plain macro_name in the local_namespace
+                    macro = self.macro_resolver.macros[macro_unique_id]
+                    macro_gen = MacroGenerator(
+                        macro, self.ctx, self.node, self.thread_ctx,
+                    )
+                    self.local_namespace[macro_name] = macro_gen
+                    # We also need the two part macro name
+                    if project_name not in self.project_namespace:
+                        self.project_namespace[project_name] = {}
+                    self.project_namespace[project_name][macro_name] = macro_gen
+
+    def recursively_get_depends_on_macros(self, depends_on_macros, dep_macros):
+        for macro_unique_id in depends_on_macros:
+            if macro_unique_id in dep_macros:
+                continue
+            dep_macros.append(macro_unique_id)
+            if macro_unique_id in self.macro_resolver.macros:
+                macro = self.macro_resolver.macros[macro_unique_id]
+                if macro.depends_on.macros:
+                    self.recursively_get_depends_on_macros(macro.depends_on.macros, dep_macros)
 
     def get_from_package(
         self, package_name: Optional[str], name: str
@@ -139,9 +185,15 @@ class TestMacroNamespace:
             macro = self.macro_resolver.macros_by_name.get(name)
         elif package_name == GLOBAL_PROJECT_NAME:
             macro = self.macro_resolver.internal_packages_namespace.get(name)
-        elif package_name in self.resolver.packages:
+        elif package_name in self.macro_resolver.packages:
             macro = self.macro_resolver.packages[package_name].get(name)
         else:
-            raise_compiler_error(f"Could not find package '{package_name}'")
-        macro_func = MacroGenerator(macro, self.ctx, self.node, self.thread_ctx)
+            raise_compiler_error(
+                f"Could not find package '{package_name}'"
+            )
+        if not macro:
+            return None
+        macro_func = MacroGenerator(
+            macro, self.ctx, self.node, self.thread_ctx
+        )
         return macro_func

core/dbt/context/macros.py

@@ -1,9 +1,13 @@
-from typing import Any, Dict, Iterable, Union, Optional, List, Iterator, Mapping, Set
+from typing import (
+    Any, Dict, Iterable, Union, Optional, List, Iterator, Mapping, Set
+)
 
 from dbt.clients.jinja import MacroGenerator, MacroStack
 from dbt.contracts.graph.parsed import ParsedMacro
 from dbt.include.global_project import PROJECT_NAME as GLOBAL_PROJECT_NAME
-from dbt.exceptions import raise_duplicate_macro_name, raise_compiler_error
+from dbt.exceptions import (
+    raise_duplicate_macro_name, raise_compiler_error
+)
 
 
 FlatNamespace = Dict[str, MacroGenerator]
@@ -15,13 +19,17 @@ FullNamespace = Dict[str, NamespaceMember]
 # and provide the ability to flatten them into the ManifestContexts
 # that are created for jinja, so that macro calls can be resolved.
 # Creates special iterators and _keys methods to flatten the lists.
+# When this class is created it has a static 'local_namespace' which
+# depends on the package of the node, so it only works for one
+# particular local package at a time for "flattening" into a context.
+# 'get_by_package' should work for any macro.
 class MacroNamespace(Mapping):
     def __init__(
         self,
-        global_namespace: FlatNamespace,
-        local_namespace: FlatNamespace,
-        global_project_namespace: FlatNamespace,
-        packages: Dict[str, FlatNamespace],
+        global_namespace: FlatNamespace,  # root package macros
+        local_namespace: FlatNamespace,   # packages for *this* node
+        global_project_namespace: FlatNamespace,  # internal packages
+        packages: Dict[str, FlatNamespace],  # non-internal packages
     ):
         self.global_namespace: FlatNamespace = global_namespace
         self.local_namespace: FlatNamespace = local_namespace
@@ -29,13 +37,13 @@ class MacroNamespace(Mapping):
         self.global_project_namespace: FlatNamespace = global_project_namespace
 
     def _search_order(self) -> Iterable[Union[FullNamespace, FlatNamespace]]:
-        yield self.local_namespace
-        yield self.global_namespace
-        yield self.packages
+        yield self.local_namespace   # local package
+        yield self.global_namespace  # root package
+        yield self.packages          # non-internal packages
         yield {
-            GLOBAL_PROJECT_NAME: self.global_project_namespace,
+            GLOBAL_PROJECT_NAME: self.global_project_namespace,  # dbt
         }
-        yield self.global_project_namespace
+        yield self.global_project_namespace  # other internal project besides dbt
 
     # provides special keys method for MacroNamespace iterator
     # returns keys from local_namespace, global_namespace, packages,
@@ -71,7 +79,9 @@ class MacroNamespace(Mapping):
         elif package_name in self.packages:
             return self.packages[package_name].get(name)
         else:
-            raise_compiler_error(f"Could not find package '{package_name}'")
+            raise_compiler_error(
+                f"Could not find package '{package_name}'"
+            )
 
 
 # This class builds the MacroNamespace by adding macros to
@@ -92,7 +102,9 @@ class MacroNamespaceBuilder:
         # internal packages comes from get_adapter_package_names
         self.internal_package_names = set(internal_packages)
         self.internal_package_names_order = internal_packages
-        # macro_func is added here if in root package
+        # macro_func is added here if in root package, since
+        # the root package acts as a "global" namespace, overriding
+        # everything else except local external package macro calls
         self.globals: FlatNamespace = {}
         # macro_func is added here if it's the package for this node
         self.locals: FlatNamespace = {}
@@ -116,7 +128,9 @@ class MacroNamespaceBuilder:
             hierarchy[macro.package_name] = namespace
 
         if macro.name in namespace:
-            raise_duplicate_macro_name(macro_func.macro, macro, macro.package_name)
+            raise_duplicate_macro_name(
+                macro_func.macro, macro, macro.package_name
+            )
         hierarchy[macro.package_name][macro.name] = macro_func
 
     def add_macro(self, macro: ParsedMacro, ctx: Dict[str, Any]):
@@ -161,8 +175,8 @@ class MacroNamespaceBuilder:
                 global_project_namespace.update(self.internal_packages[pkg])
 
         return MacroNamespace(
-            global_namespace=self.globals,
-            local_namespace=self.locals,
-            global_project_namespace=global_project_namespace,
-            packages=self.packages,
+            global_namespace=self.globals,  # root package macros
+            local_namespace=self.locals,  # packages for *this* node
+            global_project_namespace=global_project_namespace,  # internal packages
+            packages=self.packages,  # non internal_packages
         )

core/dbt/context/manifest.py

@@ -2,7 +2,7 @@ from typing import List
 
 from dbt.clients.jinja import MacroStack
 from dbt.contracts.connection import AdapterRequiredConfig
-from dbt.contracts.graph.manifest import Manifest, AnyManifest
+from dbt.contracts.graph.manifest import Manifest
 from dbt.context.macro_resolver import TestMacroNamespace
 
 
@@ -17,11 +17,11 @@ class ManifestContext(ConfiguredContext):
     The given macros can override any previous context values, which will be
     available as if they were accessed relative to the package name.
     """
-
+    # subclasses are QueryHeaderContext and ProviderContext
     def __init__(
         self,
         config: AdapterRequiredConfig,
-        manifest: AnyManifest,
+        manifest: Manifest,
         search_package: str,
     ) -> None:
         super().__init__(config)
@@ -38,12 +38,13 @@ class ManifestContext(ConfiguredContext):
         # this takes all the macros in the manifest and adds them
         # to the MacroNamespaceBuilder stored in self.namespace
         builder = self._get_namespace_builder()
-        return builder.build_namespace(self.manifest.macros.values(), self._ctx)
+        return builder.build_namespace(
+            self.manifest.macros.values(), self._ctx
+        )
 
     def _get_namespace_builder(self) -> MacroNamespaceBuilder:
         # avoid an import loop
         from dbt.adapters.factory import get_adapter_package_names
-
         internal_packages: List[str] = get_adapter_package_names(
             self.config.credentials.type
         )
@@ -62,16 +63,21 @@ class ManifestContext(ConfiguredContext):
         # keys in the manifest dictionary
         if isinstance(self.namespace, TestMacroNamespace):
             dct.update(self.namespace.local_namespace)
+            dct.update(self.namespace.project_namespace)
         else:
             dct.update(self.namespace)
         return dct
 
 
 class QueryHeaderContext(ManifestContext):
-    def __init__(self, config: AdapterRequiredConfig, manifest: Manifest) -> None:
+    def __init__(
+        self, config: AdapterRequiredConfig, manifest: Manifest
+    ) -> None:
         super().__init__(config, manifest, config.project_name)
 
 
-def generate_query_header_context(config: AdapterRequiredConfig, manifest: Manifest):
+def generate_query_header_context(
+    config: AdapterRequiredConfig, manifest: Manifest
+):
     ctx = QueryHeaderContext(config, manifest)
     return ctx.to_dict()

core/dbt/context/secret.py

@@ -0,0 +1,40 @@
+import os
+from typing import Any, Dict, Optional
+
+from .base import BaseContext, contextmember
+
+from dbt.exceptions import raise_parsing_error
+
+
+class SecretContext(BaseContext):
+    """This context is used in profiles.yml + packages.yml. It can render secret
+    env vars that aren't usable elsewhere"""
+
+    @contextmember
+    def env_var(self, var: str, default: Optional[str] = None) -> str:
+        """The env_var() function. Return the environment variable named 'var'.
+        If there is no such environment variable set, return the default.
+
+        If the default is None, raise an exception for an undefined variable.
+
+        In this context *only*, env_var will return the actual values of
+        env vars prefixed with DBT_ENV_SECRET_
+        """
+        return_value = None
+        if var in os.environ:
+            return_value = os.environ[var]
+        elif default is not None:
+            return_value = default
+
+        if return_value is not None:
+            self.env_vars[var] = return_value
+            return return_value
+        else:
+            msg = f"Env var required but not provided: '{var}'"
+            raise_parsing_error(msg)
+
+
+def generate_secret_context(cli_vars: Dict[str, Any]) -> Dict[str, Any]:
+    ctx = SecretContext(cli_vars)
+    # This is not a Mashumaro to_dict call
+    return ctx.to_dict()

core/dbt/context/target.py

@@ -2,10 +2,13 @@ from typing import Any, Dict
 
 from dbt.contracts.connection import HasCredentials
 
-from dbt.context import BaseContext, contextproperty
+from dbt.context.base import (
+    BaseContext, contextproperty
+)
 
 
 class TargetContext(BaseContext):
+    # subclass is ConfiguredContext
     def __init__(self, config: HasCredentials, cli_vars: Dict[str, Any]):
         super().__init__(cli_vars=cli_vars)
         self.config = config

core/dbt/contracts/README.md

@@ -0,0 +1 @@
+# Contracts README

core/dbt/contracts/connection.py

@@ -1,36 +1,28 @@
 import abc
 import itertools
+import hashlib
 from dataclasses import dataclass, field
 from typing import (
-    Any,
-    ClassVar,
-    Dict,
-    Tuple,
-    Iterable,
-    Optional,
-    List,
-    Callable,
+    Any, ClassVar, Dict, Tuple, Iterable, Optional, List, Callable,
 )
 from dbt.exceptions import InternalException
 from dbt.utils import translate_aliases
-from dbt.logger import GLOBAL_LOGGER as logger
+from dbt.events.functions import fire_event
+from dbt.events.types import NewConnectionOpening
 from typing_extensions import Protocol
 from dbt.dataclass_schema import (
-    dbtClassMixin,
-    StrEnum,
-    ExtensibleDbtClassMixin,
-    ValidatedStringMixin,
-    register_pattern,
+    dbtClassMixin, StrEnum, ExtensibleDbtClassMixin, HyphenatedDbtClassMixin,
+    ValidatedStringMixin, register_pattern
 )
 from dbt.contracts.util import Replaceable
 
 
 class Identifier(ValidatedStringMixin):
-    ValidationRegex = r"^[A-Za-z_][A-Za-z0-9_]+$"
+    ValidationRegex = r'^[A-Za-z_][A-Za-z0-9_]+$'
 
 
 # we need register_pattern for jsonschema validation
-register_pattern(Identifier, r"^[A-Za-z_][A-Za-z0-9_]+$")
+register_pattern(Identifier, r'^[A-Za-z_][A-Za-z0-9_]+$')
 
 
 @dataclass
@@ -44,10 +36,10 @@ class AdapterResponse(dbtClassMixin):
 
 
 class ConnectionState(StrEnum):
-    INIT = "init"
-    OPEN = "open"
-    CLOSED = "closed"
-    FAIL = "fail"
+    INIT = 'init'
+    OPEN = 'open'
+    CLOSED = 'closed'
+    FAIL = 'fail'
 
 
 @dataclass(init=False)
@@ -91,7 +83,8 @@ class Connection(ExtensibleDbtClassMixin, Replaceable):
                 self._handle.resolve(self)
             except RecursionError as exc:
                 raise InternalException(
-                    "A connection's open() method attempted to read the " "handle value"
+                    "A connection's open() method attempted to read the "
+                    "handle value"
                 ) from exc
         return self._handle
 
@@ -109,9 +102,7 @@ class LazyHandle:
         self.opener = opener
 
     def resolve(self, connection: Connection) -> Connection:
-        logger.debug(
-            "Opening a new connection, currently in state {}".format(connection.state)
-        )
+        fire_event(NewConnectionOpening(connection_state=connection.state))
         return self.opener(connection)
 
 
@@ -120,24 +111,46 @@ class LazyHandle:
 # for why we have type: ignore. Maybe someday dataclasses + abstract classes
 # will work.
 @dataclass  # type: ignore
-class Credentials(ExtensibleDbtClassMixin, Replaceable, metaclass=abc.ABCMeta):
+class Credentials(
+    ExtensibleDbtClassMixin,
+    Replaceable,
+    metaclass=abc.ABCMeta
+):
     database: str
     schema: str
     _ALIASES: ClassVar[Dict[str, str]] = field(default={}, init=False)
 
     @abc.abstractproperty
     def type(self) -> str:
-        raise NotImplementedError("type not implemented for base credentials class")
+        raise NotImplementedError(
+            'type not implemented for base credentials class'
+        )
+
+    @property
+    def unique_field(self) -> str:
+        """Hashed and included in anonymous telemetry to track adapter adoption.
+        Return the field from Credentials that can uniquely identify
+        one team/organization using this adapter
+        """
+        raise NotImplementedError(
+            'unique_field not implemented for base credentials class'
+        )
+
+    def hashed_unique_field(self) -> str:
+        return hashlib.md5(self.unique_field.encode('utf-8')).hexdigest()
 
     def connection_info(
         self, *, with_aliases: bool = False
     ) -> Iterable[Tuple[str, Any]]:
-        """Return an ordered iterator of key/value pairs for pretty-printing."""
+        """Return an ordered iterator of key/value pairs for pretty-printing.
+        """
         as_dict = self.to_dict(omit_none=False)
         connection_keys = set(self._connection_keys())
         aliases: List[str] = []
         if with_aliases:
-            aliases = [k for k, v in self._ALIASES.items() if v in connection_keys]
+            aliases = [
+                k for k, v in self._ALIASES.items() if v in connection_keys
+            ]
         for key in itertools.chain(self._connection_keys(), aliases):
             if key in as_dict:
                 yield key, as_dict[key]
@@ -161,13 +174,11 @@ class Credentials(ExtensibleDbtClassMixin, Replaceable, metaclass=abc.ABCMeta):
     def __post_serialize__(self, dct):
         # no super() -- do we need it?
         if self._ALIASES:
-            dct.update(
-                {
-                    new_name: dct[canonical_name]
-                    for new_name, canonical_name in self._ALIASES.items()
-                    if canonical_name in dct
-                }
-            )
+            dct.update({
+                new_name: dct[canonical_name]
+                for new_name, canonical_name in self._ALIASES.items()
+                if canonical_name in dct
+            })
         return dct
 
 
@@ -177,22 +188,19 @@ class UserConfigContract(Protocol):
     partial_parse: Optional[bool] = None
     printer_width: Optional[int] = None
 
-    def set_values(self, cookie_dir: str) -> None:
-        ...
-
 
 class HasCredentials(Protocol):
     credentials: Credentials
     profile_name: str
-    config: UserConfigContract
+    user_config: UserConfigContract
     target_name: str
     threads: int
 
     def to_target_dict(self):
-        raise NotImplementedError("to_target_dict not implemented")
+        raise NotImplementedError('to_target_dict not implemented')
 
 
-DEFAULT_QUERY_COMMENT = """
+DEFAULT_QUERY_COMMENT = '''
 {%- set comment_dict = {} -%}
 {%- do comment_dict.update(
     app='dbt',
@@ -209,13 +217,14 @@ DEFAULT_QUERY_COMMENT = """
   {%- do comment_dict.update(connection_name=connection_name) -%}
 {%- endif -%}
 {{ return(tojson(comment_dict)) }}
-"""
+'''
 
 
 @dataclass
-class QueryComment(dbtClassMixin):
+class QueryComment(HyphenatedDbtClassMixin):
     comment: str = DEFAULT_QUERY_COMMENT
     append: bool = False
+    job_label: bool = False
 
 
 class AdapterRequiredConfig(HasCredentials, Protocol):

core/dbt/contracts/files.py

@@ -1,23 +1,50 @@
 import hashlib
 import os
 from dataclasses import dataclass, field
-from typing import List, Optional, Union
+from mashumaro.types import SerializableType
+from typing import List, Optional, Union, Dict, Any
 
-from dbt.dataclass_schema import dbtClassMixin
+from dbt.dataclass_schema import dbtClassMixin, StrEnum
 
-from dbt.exceptions import InternalException
-
-from .util import MacroKey, SourceKey
+from .util import SourceKey
 
 
 MAXIMUM_SEED_SIZE = 1 * 1024 * 1024
-MAXIMUM_SEED_SIZE_NAME = "1MB"
+MAXIMUM_SEED_SIZE_NAME = '1MB'
+
+
+class ParseFileType(StrEnum):
+    Macro = 'macro'
+    Model = 'model'
+    Snapshot = 'snapshot'
+    Analysis = 'analysis'
+    SingularTest = 'singular_test'
+    GenericTest = 'generic_test'
+    Seed = 'seed'
+    Documentation = 'docs'
+    Schema = 'schema'
+    Hook = 'hook'   # not a real filetype, from dbt_project.yml
+
+
+parse_file_type_to_parser = {
+    ParseFileType.Macro: 'MacroParser',
+    ParseFileType.Model: 'ModelParser',
+    ParseFileType.Snapshot: 'SnapshotParser',
+    ParseFileType.Analysis: 'AnalysisParser',
+    ParseFileType.SingularTest: 'SingularTestParser',
+    ParseFileType.GenericTest: 'GenericTestParser',
+    ParseFileType.Seed: 'SeedParser',
+    ParseFileType.Documentation: 'DocumentationParser',
+    ParseFileType.Schema: 'SchemaParser',
+    ParseFileType.Hook: 'HookParser',
+}
 
 
 @dataclass
 class FilePath(dbtClassMixin):
     searched_path: str
     relative_path: str
+    modification_time: float
     project_root: str
 
     @property
@@ -28,7 +55,9 @@ class FilePath(dbtClassMixin):
     @property
     def full_path(self) -> str:
         # useful for symlink preservation
-        return os.path.join(self.project_root, self.searched_path, self.relative_path)
+        return os.path.join(
+            self.project_root, self.searched_path, self.relative_path
+        )
 
     @property
     def absolute_path(self) -> str:
@@ -38,10 +67,13 @@ class FilePath(dbtClassMixin):
     def original_file_path(self) -> str:
         # this is mostly used for reporting errors. It doesn't show the project
         # name, should it?
-        return os.path.join(self.searched_path, self.relative_path)
+        return os.path.join(
+            self.searched_path, self.relative_path
+        )
 
     def seed_too_large(self) -> bool:
-        """Return whether the file this represents is over the seed size limit"""
+        """Return whether the file this represents is over the seed size limit
+        """
         return os.stat(self.full_path).st_size > MAXIMUM_SEED_SIZE
 
 
@@ -52,35 +84,35 @@ class FileHash(dbtClassMixin):
 
     @classmethod
     def empty(cls):
-        return FileHash(name="none", checksum="")
+        return FileHash(name='none', checksum='')
 
     @classmethod
     def path(cls, path: str):
-        return FileHash(name="path", checksum=path)
+        return FileHash(name='path', checksum=path)
 
     def __eq__(self, other):
         if not isinstance(other, FileHash):
             return NotImplemented
 
-        if self.name == "none" or self.name != other.name:
+        if self.name == 'none' or self.name != other.name:
             return False
 
         return self.checksum == other.checksum
 
     def compare(self, contents: str) -> bool:
         """Compare the file contents with the given hash"""
-        if self.name == "none":
+        if self.name == 'none':
             return False
 
         return self.from_contents(contents, name=self.name) == self.checksum
 
     @classmethod
-    def from_contents(cls, contents: str, name="sha256") -> "FileHash":
+    def from_contents(cls, contents: str, name='sha256') -> 'FileHash':
         """Create a file hash from the given file contents. The hash is always
         the utf-8 encoding of the contents given, because dbt only reads files
         as utf-8.
         """
-        data = contents.encode("utf-8")
+        data = contents.encode('utf-8')
         checksum = hashlib.new(name, data).hexdigest()
         return cls(name=name, checksum=checksum)
 
@@ -89,75 +121,202 @@ class FileHash(dbtClassMixin):
 class RemoteFile(dbtClassMixin):
     @property
     def searched_path(self) -> str:
-        return "from remote system"
+        return 'from remote system'
 
     @property
     def relative_path(self) -> str:
-        return "from remote system"
+        return 'from remote system'
 
     @property
     def absolute_path(self) -> str:
-        return "from remote system"
+        return 'from remote system'
 
     @property
     def original_file_path(self):
-        return "from remote system"
+        return 'from remote system'
+
+    @property
+    def modification_time(self):
+        return 'from remote system'
 
 
 @dataclass
-class SourceFile(dbtClassMixin):
+class BaseSourceFile(dbtClassMixin, SerializableType):
     """Define a source file in dbt"""
-
     path: Union[FilePath, RemoteFile]  # the path information
     checksum: FileHash
+    # Seems like knowing which project the file came from would be useful
+    project_name: Optional[str] = None
+    # Parse file type: i.e. which parser will process this file
+    parse_file_type: Optional[ParseFileType] = None
     # we don't want to serialize this
-    _contents: Optional[str] = None
+    contents: Optional[str] = None
     # the unique IDs contained in this file
+
+    @property
+    def file_id(self):
+        if isinstance(self.path, RemoteFile):
+            return None
+        return f'{self.project_name}://{self.path.original_file_path}'
+
+    def _serialize(self):
+        dct = self.to_dict()
+        return dct
+
+    @classmethod
+    def _deserialize(cls, dct: Dict[str, int]):
+        if dct['parse_file_type'] == 'schema':
+            sf = SchemaSourceFile.from_dict(dct)
+        else:
+            sf = SourceFile.from_dict(dct)
+        return sf
+
+    def __post_serialize__(self, dct):
+        dct = super().__post_serialize__(dct)
+        # remove empty lists to save space
+        dct_keys = list(dct.keys())
+        for key in dct_keys:
+            if isinstance(dct[key], list) and not dct[key]:
+                del dct[key]
+        # remove contents. Schema files will still have 'dict_from_yaml'
+        # from the contents
+        if 'contents' in dct:
+            del dct['contents']
+        return dct
+
+
+@dataclass
+class SourceFile(BaseSourceFile):
     nodes: List[str] = field(default_factory=list)
     docs: List[str] = field(default_factory=list)
     macros: List[str] = field(default_factory=list)
-    sources: List[str] = field(default_factory=list)
-    exposures: List[str] = field(default_factory=list)
-    # any node patches in this file. The entries are names, not unique ids!
-    patches: List[str] = field(default_factory=list)
-    # any macro patches in this file. The entries are package, name pairs.
-    macro_patches: List[MacroKey] = field(default_factory=list)
-    # any source patches in this file. The entries are package, name pairs
-    source_patches: List[SourceKey] = field(default_factory=list)
-
-    @property
-    def search_key(self) -> Optional[str]:
-        if isinstance(self.path, RemoteFile):
-            return None
-        if self.checksum.name == "none":
-            return None
-        return self.path.search_key
-
-    @property
-    def contents(self) -> str:
-        if self._contents is None:
-            raise InternalException("SourceFile has no contents!")
-        return self._contents
-
-    @contents.setter
-    def contents(self, value):
-        self._contents = value
+    env_vars: List[str] = field(default_factory=list)
 
     @classmethod
-    def empty(cls, path: FilePath) -> "SourceFile":
-        self = cls(path=path, checksum=FileHash.empty())
-        self.contents = ""
-        return self
-
-    @classmethod
-    def big_seed(cls, path: FilePath) -> "SourceFile":
+    def big_seed(cls, path: FilePath) -> 'SourceFile':
         """Parse seeds over the size limit with just the path"""
         self = cls(path=path, checksum=FileHash.path(path.original_file_path))
-        self.contents = ""
+        self.contents = ''
         return self
 
+    def add_node(self, value):
+        if value not in self.nodes:
+            self.nodes.append(value)
+
+    # TODO: do this a different way. This remote file kludge isn't going
+    # to work long term
     @classmethod
-    def remote(cls, contents: str) -> "SourceFile":
-        self = cls(path=RemoteFile(), checksum=FileHash.empty())
-        self.contents = contents
+    def remote(cls, contents: str, project_name: str) -> 'SourceFile':
+        self = cls(
+            path=RemoteFile(),
+            checksum=FileHash.from_contents(contents),
+            project_name=project_name,
+            contents=contents,
+        )
         return self
+
+
+@dataclass
+class SchemaSourceFile(BaseSourceFile):
+    dfy: Dict[str, Any] = field(default_factory=dict)
+    # these are in the manifest.nodes dictionary
+    tests: Dict[str, Any] = field(default_factory=dict)
+    sources: List[str] = field(default_factory=list)
+    exposures: List[str] = field(default_factory=list)
+    metrics: List[str] = field(default_factory=list)
+    # node patches contain models, seeds, snapshots, analyses
+    ndp: List[str] = field(default_factory=list)
+    # any macro patches in this file by macro unique_id.
+    mcp: Dict[str, str] = field(default_factory=dict)
+    # any source patches in this file. The entries are package, name pairs
+    # Patches are only against external sources. Sources can be
+    # created too, but those are in 'sources'
+    sop: List[SourceKey] = field(default_factory=list)
+    env_vars: Dict[str, Any] = field(default_factory=dict)
+    pp_dict: Optional[Dict[str, Any]] = None
+    pp_test_index: Optional[Dict[str, Any]] = None
+
+    @property
+    def dict_from_yaml(self):
+        return self.dfy
+
+    @property
+    def node_patches(self):
+        return self.ndp
+
+    @property
+    def macro_patches(self):
+        return self.mcp
+
+    @property
+    def source_patches(self):
+        return self.sop
+
+    def __post_serialize__(self, dct):
+        dct = super().__post_serialize__(dct)
+        # Remove partial parsing specific data
+        for key in ('pp_test_index', 'pp_dict'):
+            if key in dct:
+                del dct[key]
+        return dct
+
+    def append_patch(self, yaml_key, unique_id):
+        self.node_patches.append(unique_id)
+
+    def add_test(self, node_unique_id, test_from):
+        name = test_from['name']
+        key = test_from['key']
+        if key not in self.tests:
+            self.tests[key] = {}
+        if name not in self.tests[key]:
+            self.tests[key][name] = []
+        self.tests[key][name].append(node_unique_id)
+
+    def remove_tests(self, yaml_key, name):
+        if yaml_key in self.tests:
+            if name in self.tests[yaml_key]:
+                del self.tests[yaml_key][name]
+
+    def get_tests(self, yaml_key, name):
+        if yaml_key in self.tests:
+            if name in self.tests[yaml_key]:
+                return self.tests[yaml_key][name]
+        return []
+
+    def get_key_and_name_for_test(self, test_unique_id):
+        yaml_key = None
+        block_name = None
+        for key in self.tests.keys():
+            for name in self.tests[key]:
+                for unique_id in self.tests[key][name]:
+                    if unique_id == test_unique_id:
+                        yaml_key = key
+                        block_name = name
+                        break
+        return (yaml_key, block_name)
+
+    def get_all_test_ids(self):
+        test_ids = []
+        for key in self.tests.keys():
+            for name in self.tests[key]:
+                test_ids.extend(self.tests[key][name])
+        return test_ids
+
+    def add_env_var(self, var, yaml_key, name):
+        if yaml_key not in self.env_vars:
+            self.env_vars[yaml_key] = {}
+        if name not in self.env_vars[yaml_key]:
+            self.env_vars[yaml_key][name] = []
+        if var not in self.env_vars[yaml_key][name]:
+            self.env_vars[yaml_key][name].append(var)
+
+    def delete_from_env_vars(self, yaml_key, name):
+        # We delete all vars for this yaml_key/name because the
+        # entry has been scheduled for reparsing.
+        if yaml_key in self.env_vars and name in self.env_vars[yaml_key]:
+            del self.env_vars[yaml_key][name]
+            if not self.env_vars[yaml_key]:
+                del self.env_vars[yaml_key]
+
+
+AnySourceFile = Union[SchemaSourceFile, SourceFile]

core/dbt/contracts/graph/compiled.py

@@ -2,13 +2,15 @@ from dbt.contracts.graph.parsed import (
     HasTestMetadata,
     ParsedNode,
     ParsedAnalysisNode,
-    ParsedDataTestNode,
+    ParsedSingularTestNode,
     ParsedHookNode,
     ParsedModelNode,
     ParsedExposure,
+    ParsedMetric,
     ParsedResource,
     ParsedRPCNode,
-    ParsedSchemaTestNode,
+    ParsedSqlNode,
+    ParsedGenericTestNode,
     ParsedSeedNode,
     ParsedSnapshotNode,
     ParsedSourceDefinition,
@@ -43,6 +45,7 @@ class CompiledNode(ParsedNode, CompiledNodeMixin):
     extra_ctes_injected: bool = False
     extra_ctes: List[InjectedCTE] = field(default_factory=list)
     relation_name: Optional[str] = None
+    _pre_injected_sql: Optional[str] = None
 
     def set_cte(self, cte_id: str, sql: str):
         """This is the equivalent of what self.extra_ctes[cte_id] = sql would
@@ -55,32 +58,46 @@ class CompiledNode(ParsedNode, CompiledNodeMixin):
         else:
             self.extra_ctes.append(InjectedCTE(id=cte_id, sql=sql))
 
+    def __post_serialize__(self, dct):
+        dct = super().__post_serialize__(dct)
+        if '_pre_injected_sql' in dct:
+            del dct['_pre_injected_sql']
+        return dct
+
 
 @dataclass
 class CompiledAnalysisNode(CompiledNode):
-    resource_type: NodeType = field(metadata={"restrict": [NodeType.Analysis]})
+    resource_type: NodeType = field(metadata={'restrict': [NodeType.Analysis]})
 
 
 @dataclass
 class CompiledHookNode(CompiledNode):
-    resource_type: NodeType = field(metadata={"restrict": [NodeType.Operation]})
+    resource_type: NodeType = field(
+        metadata={'restrict': [NodeType.Operation]}
+    )
     index: Optional[int] = None
 
 
 @dataclass
 class CompiledModelNode(CompiledNode):
-    resource_type: NodeType = field(metadata={"restrict": [NodeType.Model]})
+    resource_type: NodeType = field(metadata={'restrict': [NodeType.Model]})
+
+
+# TODO: rm?
+@dataclass
+class CompiledRPCNode(CompiledNode):
+    resource_type: NodeType = field(metadata={'restrict': [NodeType.RPCCall]})
 
 
 @dataclass
-class CompiledRPCNode(CompiledNode):
-    resource_type: NodeType = field(metadata={"restrict": [NodeType.RPCCall]})
+class CompiledSqlNode(CompiledNode):
+    resource_type: NodeType = field(metadata={'restrict': [NodeType.SqlOperation]})
 
 
 @dataclass
 class CompiledSeedNode(CompiledNode):
     # keep this in sync with ParsedSeedNode!
-    resource_type: NodeType = field(metadata={"restrict": [NodeType.Seed]})
+    resource_type: NodeType = field(metadata={'restrict': [NodeType.Seed]})
     config: SeedConfig = field(default_factory=SeedConfig)
 
     @property
@@ -94,38 +111,39 @@ class CompiledSeedNode(CompiledNode):
 
 @dataclass
 class CompiledSnapshotNode(CompiledNode):
-    resource_type: NodeType = field(metadata={"restrict": [NodeType.Snapshot]})
+    resource_type: NodeType = field(metadata={'restrict': [NodeType.Snapshot]})
 
 
 @dataclass
-class CompiledDataTestNode(CompiledNode):
-    resource_type: NodeType = field(metadata={"restrict": [NodeType.Test]})
-    config: TestConfig = field(default_factory=TestConfig)
+class CompiledSingularTestNode(CompiledNode):
+    resource_type: NodeType = field(metadata={'restrict': [NodeType.Test]})
+    # Was not able to make mypy happy and keep the code working. We need to
+    # refactor the various configs.
+    config: TestConfig = field(default_factory=TestConfig)  # type:ignore
 
 
 @dataclass
-class CompiledSchemaTestNode(CompiledNode, HasTestMetadata):
-    # keep this in sync with ParsedSchemaTestNode!
-    resource_type: NodeType = field(metadata={"restrict": [NodeType.Test]})
+class CompiledGenericTestNode(CompiledNode, HasTestMetadata):
+    # keep this in sync with ParsedGenericTestNode!
+    resource_type: NodeType = field(metadata={'restrict': [NodeType.Test]})
     column_name: Optional[str] = None
-    config: TestConfig = field(default_factory=TestConfig)
-
-    def same_config(self, other) -> bool:
-        return self.unrendered_config.get("severity") == other.unrendered_config.get(
-            "severity"
-        )
-
-    def same_column_name(self, other) -> bool:
-        return self.column_name == other.column_name
+    file_key_name: Optional[str] = None
+    # Was not able to make mypy happy and keep the code working. We need to
+    # refactor the various configs.
+    config: TestConfig = field(default_factory=TestConfig)  # type:ignore
 
     def same_contents(self, other) -> bool:
         if other is None:
             return False
 
-        return self.same_config(other) and self.same_fqn(other) and True
+        return (
+            self.same_config(other) and
+            self.same_fqn(other) and
+            True
+        )
 
 
-CompiledTestNode = Union[CompiledDataTestNode, CompiledSchemaTestNode]
+CompiledTestNode = Union[CompiledSingularTestNode, CompiledGenericTestNode]
 
 
 PARSED_TYPES: Dict[Type[CompiledNode], Type[ParsedResource]] = {
@@ -133,10 +151,11 @@ PARSED_TYPES: Dict[Type[CompiledNode], Type[ParsedResource]] = {
     CompiledModelNode: ParsedModelNode,
     CompiledHookNode: ParsedHookNode,
     CompiledRPCNode: ParsedRPCNode,
+    CompiledSqlNode: ParsedSqlNode,
     CompiledSeedNode: ParsedSeedNode,
     CompiledSnapshotNode: ParsedSnapshotNode,
-    CompiledDataTestNode: ParsedDataTestNode,
-    CompiledSchemaTestNode: ParsedSchemaTestNode,
+    CompiledSingularTestNode: ParsedSingularTestNode,
+    CompiledGenericTestNode: ParsedGenericTestNode,
 }
 
 
@@ -145,10 +164,11 @@ COMPILED_TYPES: Dict[Type[ParsedResource], Type[CompiledNode]] = {
     ParsedModelNode: CompiledModelNode,
     ParsedHookNode: CompiledHookNode,
     ParsedRPCNode: CompiledRPCNode,
+    ParsedSqlNode: CompiledSqlNode,
     ParsedSeedNode: CompiledSeedNode,
     ParsedSnapshotNode: CompiledSnapshotNode,
-    ParsedDataTestNode: CompiledDataTestNode,
-    ParsedSchemaTestNode: CompiledSchemaTestNode,
+    ParsedSingularTestNode: CompiledSingularTestNode,
+    ParsedGenericTestNode: CompiledGenericTestNode,
 }
 
 
@@ -168,29 +188,32 @@ def parsed_instance_for(compiled: CompiledNode) -> ParsedResource:
     cls = PARSED_TYPES.get(type(compiled))
     if cls is None:
         # how???
-        raise ValueError("invalid resource_type: {}".format(compiled.resource_type))
+        raise ValueError('invalid resource_type: {}'
+                         .format(compiled.resource_type))
 
     return cls.from_dict(compiled.to_dict(omit_none=True))
 
 
 NonSourceCompiledNode = Union[
     CompiledAnalysisNode,
-    CompiledDataTestNode,
+    CompiledSingularTestNode,
     CompiledModelNode,
     CompiledHookNode,
     CompiledRPCNode,
-    CompiledSchemaTestNode,
+    CompiledSqlNode,
+    CompiledGenericTestNode,
     CompiledSeedNode,
     CompiledSnapshotNode,
 ]
 
 NonSourceParsedNode = Union[
     ParsedAnalysisNode,
-    ParsedDataTestNode,
+    ParsedSingularTestNode,
     ParsedHookNode,
     ParsedModelNode,
     ParsedRPCNode,
-    ParsedSchemaTestNode,
+    ParsedSqlNode,
+    ParsedGenericTestNode,
     ParsedSeedNode,
     ParsedSnapshotNode,
 ]
@@ -210,8 +233,10 @@ CompileResultNode = Union[
     ParsedSourceDefinition,
 ]
 
-# anything that participates in the graph: sources, exposures, manifest nodes
+# anything that participates in the graph: sources, exposures, metrics,
+# or manifest nodes
 GraphMemberNode = Union[
     CompileResultNode,
     ParsedExposure,
+    ParsedMetric,
 ]

core/dbt/contracts/graph/model_config.py

@@ -2,29 +2,19 @@ from dataclasses import field, Field, dataclass
 from enum import Enum
 from itertools import chain
 from typing import (
-    Any,
-    List,
-    Optional,
-    Dict,
-    MutableMapping,
-    Union,
-    Type,
-    TypeVar,
-    Callable,
+    Any, List, Optional, Dict, Union, Type, TypeVar, Callable
 )
 from dbt.dataclass_schema import (
-    dbtClassMixin,
-    ValidationError,
-    register_pattern,
+    dbtClassMixin, ValidationError, register_pattern,
 )
 from dbt.contracts.graph.unparsed import AdditionalPropertiesAllowed
-from dbt.exceptions import CompilationException, InternalException
+from dbt.exceptions import InternalException, CompilationException
 from dbt.contracts.util import Replaceable, list_str
 from dbt import hooks
 from dbt.node_types import NodeType
 
 
-M = TypeVar("M", bound="Metadata")
+M = TypeVar('M', bound='Metadata')
 
 
 def _get_meta_value(cls: Type[M], fld: Field, key: str, default: Any) -> M:
@@ -39,7 +29,9 @@ def _get_meta_value(cls: Type[M], fld: Field, key: str, default: Any) -> M:
     try:
         return cls(value)
     except ValueError as exc:
-        raise InternalException(f"Invalid {cls} value: {value}") from exc
+        raise InternalException(
+            f'Invalid {cls} value: {value}'
+        ) from exc
 
 
 def _set_meta_value(
@@ -61,17 +53,19 @@ class Metadata(Enum):
 
         return _get_meta_value(cls, fld, key, default)
 
-    def meta(self, existing: Optional[Dict[str, Any]] = None) -> Dict[str, Any]:
+    def meta(
+        self, existing: Optional[Dict[str, Any]] = None
+    ) -> Dict[str, Any]:
         key = self.metadata_key()
         return _set_meta_value(self, key, existing)
 
     @classmethod
-    def default_field(cls) -> "Metadata":
-        raise NotImplementedError("Not implemented")
+    def default_field(cls) -> 'Metadata':
+        raise NotImplementedError('Not implemented')
 
     @classmethod
     def metadata_key(cls) -> str:
-        raise NotImplementedError("Not implemented")
+        raise NotImplementedError('Not implemented')
 
 
 class MergeBehavior(Metadata):
@@ -80,12 +74,12 @@ class MergeBehavior(Metadata):
     Clobber = 3
 
     @classmethod
-    def default_field(cls) -> "MergeBehavior":
+    def default_field(cls) -> 'MergeBehavior':
         return cls.Clobber
 
     @classmethod
     def metadata_key(cls) -> str:
-        return "merge"
+        return 'merge'
 
 
 class ShowBehavior(Metadata):
@@ -93,12 +87,12 @@ class ShowBehavior(Metadata):
     Hide = 2
 
     @classmethod
-    def default_field(cls) -> "ShowBehavior":
+    def default_field(cls) -> 'ShowBehavior':
         return cls.Show
 
     @classmethod
     def metadata_key(cls) -> str:
-        return "show_hide"
+        return 'show_hide'
 
     @classmethod
     def should_show(cls, fld: Field) -> bool:
@@ -110,12 +104,12 @@ class CompareBehavior(Metadata):
     Exclude = 2
 
     @classmethod
-    def default_field(cls) -> "CompareBehavior":
+    def default_field(cls) -> 'CompareBehavior':
         return cls.Include
 
     @classmethod
     def metadata_key(cls) -> str:
-        return "compare"
+        return 'compare'
 
     @classmethod
     def should_include(cls, fld: Field) -> bool:
@@ -147,30 +141,32 @@ def _merge_field_value(
         return _listify(self_value) + _listify(other_value)
     elif merge_behavior == MergeBehavior.Update:
         if not isinstance(self_value, dict):
-            raise InternalException(f"expected dict, got {self_value}")
+            raise InternalException(f'expected dict, got {self_value}')
         if not isinstance(other_value, dict):
-            raise InternalException(f"expected dict, got {other_value}")
+            raise InternalException(f'expected dict, got {other_value}')
         value = self_value.copy()
         value.update(other_value)
         return value
     else:
-        raise InternalException(f"Got an invalid merge_behavior: {merge_behavior}")
+        raise InternalException(
+            f'Got an invalid merge_behavior: {merge_behavior}'
+        )
 
 
 def insensitive_patterns(*patterns: str):
     lowercased = []
     for pattern in patterns:
         lowercased.append(
-            "".join("[{}{}]".format(s.upper(), s.lower()) for s in pattern)
+            ''.join('[{}{}]'.format(s.upper(), s.lower()) for s in pattern)
         )
-    return "^({})$".format("|".join(lowercased))
+    return '^({})$'.format('|'.join(lowercased))
 
 
 class Severity(str):
     pass
 
 
-register_pattern(Severity, insensitive_patterns("warn", "error"))
+register_pattern(Severity, insensitive_patterns('warn', 'error'))
 
 
 @dataclass
@@ -180,22 +176,28 @@ class Hook(dbtClassMixin, Replaceable):
     index: Optional[int] = None
 
 
-T = TypeVar("T", bound="BaseConfig")
+T = TypeVar('T', bound='BaseConfig')
 
 
 @dataclass
-class BaseConfig(AdditionalPropertiesAllowed, Replaceable, MutableMapping[str, Any]):
-    # Implement MutableMapping so this config will behave as some macros expect
-    # during parsing (notably, syntax like `{{ node.config['schema'] }}`)
+class BaseConfig(
+    AdditionalPropertiesAllowed, Replaceable
+):
+
+    # enable syntax like: config['key']
     def __getitem__(self, key):
-        """Handle parse-time use of `config` as a dictionary, making the extra
-        values available during parsing.
-        """
+        return self.get(key)
+
+    # like doing 'get' on a dictionary
+    def get(self, key, default=None):
         if hasattr(self, key):
             return getattr(self, key)
-        else:
+        elif key in self._extra:
             return self._extra[key]
+        else:
+            return default
 
+    # enable syntax like: config['key'] = value
     def __setitem__(self, key, value):
         if hasattr(self, key):
             setattr(self, key, value)
@@ -205,7 +207,8 @@ class BaseConfig(AdditionalPropertiesAllowed, Replaceable, MutableMapping[str, A
     def __delitem__(self, key):
         if hasattr(self, key):
             msg = (
-                'Error, tried to delete config key "{}": Cannot delete ' "built-in keys"
+                'Error, tried to delete config key "{}": Cannot delete '
+                'built-in keys'
             ).format(key)
             raise CompilationException(msg)
         else:
@@ -245,7 +248,9 @@ class BaseConfig(AdditionalPropertiesAllowed, Replaceable, MutableMapping[str, A
             return unrendered[key] == other[key]
 
     @classmethod
-    def same_contents(cls, unrendered: Dict[str, Any], other: Dict[str, Any]) -> bool:
+    def same_contents(
+        cls, unrendered: Dict[str, Any], other: Dict[str, Any]
+    ) -> bool:
         """This is like __eq__, except it ignores some fields."""
         seen = set()
         for fld, target_name in cls._get_fields():
@@ -262,8 +267,17 @@ class BaseConfig(AdditionalPropertiesAllowed, Replaceable, MutableMapping[str, A
                     return False
         return True
 
+    # This is used in 'add_config_call' to created the combined config_call_dict.
+    # 'meta' moved here from node
+    mergebehavior = {
+        "append": ['pre-hook', 'pre_hook', 'post-hook', 'post_hook', 'tags'],
+        "update": ['quoting', 'column_types', 'meta'],
+    }
+
     @classmethod
-    def _extract_dict(cls, src: Dict[str, Any], data: Dict[str, Any]) -> Dict[str, Any]:
+    def _merge_dicts(
+        cls, src: Dict[str, Any], data: Dict[str, Any]
+    ) -> Dict[str, Any]:
         """Find all the items in data that match a target_field on this class,
         and merge them with the data found in `src` for target_field, using the
         field's specified merge behavior. Matching items will be removed from
@@ -303,15 +317,14 @@ class BaseConfig(AdditionalPropertiesAllowed, Replaceable, MutableMapping[str, A
         """
         # sadly, this is a circular import
         from dbt.adapters.factory import get_config_class_by_name
-
         dct = self.to_dict(omit_none=False)
 
         adapter_config_cls = get_config_class_by_name(adapter_type)
 
-        self_merged = self._extract_dict(dct, data)
+        self_merged = self._merge_dicts(dct, data)
         dct.update(self_merged)
 
-        adapter_merged = adapter_config_cls._extract_dict(dct, data)
+        adapter_merged = adapter_config_cls._merge_dicts(dct, data)
         dct.update(adapter_merged)
 
         # any remaining fields must be "clobber"
@@ -343,33 +356,8 @@ class SourceConfig(BaseConfig):
 
 
 @dataclass
-class NodeConfig(BaseConfig):
+class NodeAndTestConfig(BaseConfig):
     enabled: bool = True
-    materialized: str = "view"
-    persist_docs: Dict[str, Any] = field(default_factory=dict)
-    post_hook: List[Hook] = field(
-        default_factory=list,
-        metadata=MergeBehavior.Append.meta(),
-    )
-    pre_hook: List[Hook] = field(
-        default_factory=list,
-        metadata=MergeBehavior.Append.meta(),
-    )
-    # this only applies for config v1, so it doesn't participate in comparison
-    vars: Dict[str, Any] = field(
-        default_factory=dict,
-        metadata=metas(CompareBehavior.Exclude, MergeBehavior.Update),
-    )
-    quoting: Dict[str, Any] = field(
-        default_factory=dict,
-        metadata=MergeBehavior.Update.meta(),
-    )
-    # This is actually only used by seeds. Should it be available to others?
-    # That would be a breaking change!
-    column_types: Dict[str, Any] = field(
-        default_factory=dict,
-        metadata=MergeBehavior.Update.meta(),
-    )
     # these fields are included in serialized output, but are not part of
     # config comparison (they are part of database_representation)
     alias: Optional[str] = field(
@@ -386,16 +374,47 @@ class NodeConfig(BaseConfig):
     )
     tags: Union[List[str], str] = field(
         default_factory=list_str,
-        metadata=metas(
-            ShowBehavior.Hide, MergeBehavior.Append, CompareBehavior.Exclude
-        ),
+        metadata=metas(ShowBehavior.Hide,
+                       MergeBehavior.Append,
+                       CompareBehavior.Exclude),
+    )
+    meta: Dict[str, Any] = field(
+        default_factory=dict,
+        metadata=MergeBehavior.Update.meta(),
+    )
+
+
+@dataclass
+class NodeConfig(NodeAndTestConfig):
+    # Note: if any new fields are added with MergeBehavior, also update the
+    # 'mergebehavior' dictionary
+    materialized: str = 'view'
+    persist_docs: Dict[str, Any] = field(default_factory=dict)
+    post_hook: List[Hook] = field(
+        default_factory=list,
+        metadata=MergeBehavior.Append.meta(),
+    )
+    pre_hook: List[Hook] = field(
+        default_factory=list,
+        metadata=MergeBehavior.Append.meta(),
+    )
+    quoting: Dict[str, Any] = field(
+        default_factory=dict,
+        metadata=MergeBehavior.Update.meta(),
+    )
+    # This is actually only used by seeds. Should it be available to others?
+    # That would be a breaking change!
+    column_types: Dict[str, Any] = field(
+        default_factory=dict,
+        metadata=MergeBehavior.Update.meta(),
     )
     full_refresh: Optional[bool] = None
+    on_schema_change: Optional[str] = 'ignore'
 
     @classmethod
     def __pre_deserialize__(cls, data):
         data = super().__pre_deserialize__(data)
-        field_map = {"post-hook": "post_hook", "pre-hook": "pre_hook"}
+        field_map = {'post-hook': 'post_hook', 'pre-hook': 'pre_hook'}
         # create a new dict because otherwise it gets overwritten in
         # tests
         new_dict = {}
@@ -413,7 +432,7 @@ class NodeConfig(BaseConfig):
 
     def __post_serialize__(self, dct):
         dct = super().__post_serialize__(dct)
-        field_map = {"post_hook": "post-hook", "pre_hook": "pre-hook"}
+        field_map = {'post_hook': 'post-hook', 'pre_hook': 'pre-hook'}
         for field_name in field_map:
             if field_name in dct:
                 dct[field_map[field_name]] = dct.pop(field_name)
@@ -422,24 +441,59 @@ class NodeConfig(BaseConfig):
     # this is still used by jsonschema validation
     @classmethod
     def field_mapping(cls):
-        return {"post_hook": "post-hook", "pre_hook": "pre-hook"}
+        return {'post_hook': 'post-hook', 'pre_hook': 'pre-hook'}
 
 
 @dataclass
 class SeedConfig(NodeConfig):
-    materialized: str = "seed"
+    materialized: str = 'seed'
     quote_columns: Optional[bool] = None
 
 
 @dataclass
-class TestConfig(NodeConfig):
-    materialized: str = "test"
-    severity: Severity = Severity("ERROR")
+class TestConfig(NodeAndTestConfig):
+    # this is repeated because of a different default
+    schema: Optional[str] = field(
+        default='dbt_test__audit',
+        metadata=CompareBehavior.Exclude.meta(),
+    )
+    materialized: str = 'test'
+    severity: Severity = Severity('ERROR')
+    store_failures: Optional[bool] = None
+    where: Optional[str] = None
+    limit: Optional[int] = None
+    fail_calc: str = 'count(*)'
+    warn_if: str = '!= 0'
+    error_if: str = '!= 0'
+
+    @classmethod
+    def same_contents(
+        cls, unrendered: Dict[str, Any], other: Dict[str, Any]
+    ) -> bool:
+        """This is like __eq__, except it explicitly checks certain fields."""
+        modifiers = [
+            'severity',
+            'where',
+            'limit',
+            'fail_calc',
+            'warn_if',
+            'error_if',
+            'store_failures'
+        ]
+
+        seen = set()
+        for _, target_name in cls._get_fields():
+            key = target_name
+            seen.add(key)
+            if key in modifiers:
+                if not cls.compare_key(unrendered, other, key):
+                    return False
+        return True
 
 
 @dataclass
 class EmptySnapshotConfig(NodeConfig):
-    materialized: str = "snapshot"
+    materialized: str = 'snapshot'
 
 
 @dataclass
@@ -454,28 +508,30 @@ class SnapshotConfig(EmptySnapshotConfig):
     @classmethod
     def validate(cls, data):
         super().validate(data)
-        if data.get("strategy") == "check":
-            if not data.get("check_cols"):
+        if not data.get('strategy') or not data.get('unique_key') or not \
+                data.get('target_schema'):
+            raise ValidationError(
+                "Snapshots must be configured with a 'strategy', 'unique_key', "
+                "and 'target_schema'.")
+        if data.get('strategy') == 'check':
+            if not data.get('check_cols'):
                 raise ValidationError(
                     "A snapshot configured with the check strategy must "
-                    "specify a check_cols configuration."
-                )
-            if isinstance(data["check_cols"], str) and data["check_cols"] != "all":
+                    "specify a check_cols configuration.")
+            if (isinstance(data['check_cols'], str) and
+                    data['check_cols'] != 'all'):
                 raise ValidationError(
                     f"Invalid value for 'check_cols': {data['check_cols']}. "
-                    "Expected 'all' or a list of strings."
-                )
+                    "Expected 'all' or a list of strings.")
 
-        elif data.get("strategy") == "timestamp":
-            if not data.get("updated_at"):
+        elif data.get('strategy') == 'timestamp':
+            if not data.get('updated_at'):
                 raise ValidationError(
                     "A snapshot configured with the timestamp strategy "
-                    "must specify an updated_at configuration."
-                )
-            if data.get("check_cols"):
+                    "must specify an updated_at configuration.")
+            if data.get('check_cols'):
                 raise ValidationError(
-                    "A 'timestamp' snapshot should not have 'check_cols'"
-                )
+                    "A 'timestamp' snapshot should not have 'check_cols'")
         # If the strategy is not 'check' or 'timestamp' it's a custom strategy,
         # formerly supported with GenericSnapshotConfig
 
@@ -497,7 +553,9 @@ RESOURCE_TYPES: Dict[NodeType, Type[BaseConfig]] = {
 # base resource types are like resource types, except nothing has mandatory
 # configs.
 BASE_RESOURCE_TYPES: Dict[NodeType, Type[BaseConfig]] = RESOURCE_TYPES.copy()
-BASE_RESOURCE_TYPES.update({NodeType.Snapshot: EmptySnapshotConfig})
+BASE_RESOURCE_TYPES.update({
+    NodeType.Snapshot: EmptySnapshotConfig
+})
 
 
 def get_config_for(resource_type: NodeType, base=False) -> Type[BaseConfig]:

core/dbt/contracts/graph/parsed.py

@@ -1,5 +1,7 @@
 import os
+import time
 from dataclasses import dataclass, field
+from mashumaro.types import SerializableType
 from pathlib import Path
 from typing import (
     Optional,
@@ -13,31 +15,21 @@ from typing import (
     TypeVar,
 )
 
-from dbt.dataclass_schema import dbtClassMixin, ExtensibleDbtClassMixin
+from dbt.dataclass_schema import (
+    dbtClassMixin, ExtensibleDbtClassMixin
+)
 
 from dbt.clients.system import write_file
 from dbt.contracts.files import FileHash, MAXIMUM_SEED_SIZE_NAME
 from dbt.contracts.graph.unparsed import (
-    UnparsedNode,
-    UnparsedDocumentation,
-    Quoting,
-    Docs,
-    UnparsedBaseNode,
-    FreshnessThreshold,
-    ExternalTable,
-    HasYamlMetadata,
-    MacroArgument,
-    UnparsedSourceDefinition,
-    UnparsedSourceTableDefinition,
-    UnparsedColumn,
-    TestDef,
-    ExposureOwner,
-    ExposureType,
-    MaturityType,
+    UnparsedNode, UnparsedDocumentation, Quoting, Docs,
+    UnparsedBaseNode, FreshnessThreshold, ExternalTable,
+    HasYamlMetadata, MacroArgument, UnparsedSourceDefinition,
+    UnparsedSourceTableDefinition, UnparsedColumn, TestDef,
+    ExposureOwner, ExposureType, MaturityType, MetricFilter
 )
 from dbt.contracts.util import Replaceable, AdditionalPropertiesMixin
 from dbt.exceptions import warn_or_error
-from dbt.logger import GLOBAL_LOGGER as logger  # noqa
 from dbt import flags
 from dbt.node_types import NodeType
 
@@ -53,9 +45,13 @@ from .model_config import (
 
 
 @dataclass
-class ColumnInfo(AdditionalPropertiesMixin, ExtensibleDbtClassMixin, Replaceable):
+class ColumnInfo(
+    AdditionalPropertiesMixin,
+    ExtensibleDbtClassMixin,
+    Replaceable
+):
     name: str
-    description: str = ""
+    description: str = ''
     meta: Dict[str, Any] = field(default_factory=dict)
     data_type: Optional[str] = None
     quote: Optional[bool] = None
@@ -67,7 +63,7 @@ class ColumnInfo(AdditionalPropertiesMixin, ExtensibleDbtClassMixin, Replaceable
 class HasFqn(dbtClassMixin, Replaceable):
     fqn: List[str]
 
-    def same_fqn(self, other: "HasFqn") -> bool:
+    def same_fqn(self, other: 'HasFqn') -> bool:
         return self.fqn == other.fqn
 
 
@@ -106,8 +102,8 @@ class HasRelationMetadata(dbtClassMixin, Replaceable):
     @classmethod
     def __pre_deserialize__(cls, data):
         data = super().__pre_deserialize__(data)
-        if "database" not in data:
-            data["database"] = None
+        if 'database' not in data:
+            data['database'] = None
         return data
 
 
@@ -120,9 +116,24 @@ class ParsedNodeMixins(dbtClassMixin):
     def is_refable(self):
         return self.resource_type in NodeType.refable()
 
+    @property
+    def should_store_failures(self):
+        return self.resource_type == NodeType.Test and (
+            self.config.store_failures if self.config.store_failures is not None
+            else flags.STORE_FAILURES
+        )
+
+    # will this node map to an object in the database?
+    @property
+    def is_relational(self):
+        return (
+            self.resource_type in NodeType.refable() or
+            self.should_store_failures
+        )
+
     @property
     def is_ephemeral(self):
-        return self.config.materialized == "ephemeral"
+        return self.config.materialized == 'ephemeral'
 
     @property
     def is_ephemeral_model(self):
@@ -132,33 +143,30 @@ class ParsedNodeMixins(dbtClassMixin):
     def depends_on_nodes(self):
         return self.depends_on.nodes
 
-    def patch(self, patch: "ParsedNodePatch"):
+    def patch(self, patch: 'ParsedNodePatch'):
         """Given a ParsedNodePatch, add the new information to the node."""
         # explicitly pick out the parts to update so we don't inadvertently
         # step on the model name or anything
-        self.patch_path: Optional[str] = patch.original_file_path
+        # Note: config should already be updated
+        self.patch_path: Optional[str] = patch.file_id
+        # update created_at so process_docs will run in partial parsing
+        self.created_at = time.time()
         self.description = patch.description
         self.columns = patch.columns
         self.meta = patch.meta
         self.docs = patch.docs
-        if flags.STRICT_MODE:
-            # It seems odd that an instance can be invalid
-            # Maybe there should be validation or restrictions
-            # elsewhere?
-            assert isinstance(self, dbtClassMixin)
-            dct = self.to_dict(omit_none=False)
-            self.validate(dct)
 
     def get_materialization(self):
         return self.config.materialized
 
-    def local_vars(self):
-        return self.config.vars
-
 
 @dataclass
 class ParsedNodeMandatory(
-    UnparsedNode, HasUniqueID, HasFqn, HasRelationMetadata, Replaceable
+    UnparsedNode,
+    HasUniqueID,
+    HasFqn,
+    HasRelationMetadata,
+    Replaceable
 ):
     alias: str
     checksum: FileHash
@@ -170,43 +178,115 @@ class ParsedNodeMandatory(
 
 
 @dataclass
-class ParsedNodeDefaults(ParsedNodeMandatory):
+class NodeInfoMixin():
+    _event_status: Dict[str, Any] = field(default_factory=dict)
+
+    @property
+    def node_info(self):
+        node_info = {
+            "node_path": getattr(self, 'path', None),
+            "node_name": getattr(self, 'name', None),
+            "unique_id": getattr(self, 'unique_id', None),
+            "resource_type": str(getattr(self, 'resource_type', '')),
+            "materialized": self.config.get('materialized'),
+            "node_status": str(self._event_status.get('node_status')),
+            "node_started_at": self._event_status.get("started_at"),
+            "node_finished_at": self._event_status.get("finished_at")
+        }
+        return node_info
+
+
+@dataclass
+class ParsedNodeDefaults(NodeInfoMixin, ParsedNodeMandatory):
     tags: List[str] = field(default_factory=list)
     refs: List[List[str]] = field(default_factory=list)
-    sources: List[List[Any]] = field(default_factory=list)
+    sources: List[List[str]] = field(default_factory=list)
     depends_on: DependsOn = field(default_factory=DependsOn)
-    description: str = field(default="")
+    description: str = field(default='')
     columns: Dict[str, ColumnInfo] = field(default_factory=dict)
     meta: Dict[str, Any] = field(default_factory=dict)
     docs: Docs = field(default_factory=Docs)
     patch_path: Optional[str] = None
+    compiled_path: Optional[str] = None
     build_path: Optional[str] = None
     deferred: bool = False
     unrendered_config: Dict[str, Any] = field(default_factory=dict)
+    created_at: float = field(default_factory=lambda: time.time())
+    config_call_dict: Dict[str, Any] = field(default_factory=dict)
 
     def write_node(self, target_path: str, subdirectory: str, payload: str):
-        if os.path.basename(self.path) == os.path.basename(self.original_file_path):
+        if (os.path.basename(self.path) ==
+                os.path.basename(self.original_file_path)):
             # One-to-one relationship of nodes to files.
             path = self.original_file_path
         else:
             #  Many-to-one relationship of nodes to files.
             path = os.path.join(self.original_file_path, self.path)
-        full_path = os.path.join(target_path, subdirectory, self.package_name, path)
+        full_path = os.path.join(
+            target_path, subdirectory, self.package_name, path
+        )
 
         write_file(full_path, payload)
         return full_path
 
 
-T = TypeVar("T", bound="ParsedNode")
+T = TypeVar('T', bound='ParsedNode')
 
 
 @dataclass
-class ParsedNode(ParsedNodeDefaults, ParsedNodeMixins):
+class ParsedNode(ParsedNodeDefaults, ParsedNodeMixins, SerializableType):
+
+    def _serialize(self):
+        return self.to_dict()
+
+    def __post_serialize__(self, dct):
+        if 'config_call_dict' in dct:
+            del dct['config_call_dict']
+        if '_event_status' in dct:
+            del dct['_event_status']
+        return dct
+
+    @classmethod
+    def _deserialize(cls, dct: Dict[str, int]):
+        # The serialized ParsedNodes do not differ from each other
+        # in fields that would allow 'from_dict' to distinguis
+        # between them.
+        resource_type = dct['resource_type']
+        if resource_type == 'model':
+            return ParsedModelNode.from_dict(dct)
+        elif resource_type == 'analysis':
+            return ParsedAnalysisNode.from_dict(dct)
+        elif resource_type == 'seed':
+            return ParsedSeedNode.from_dict(dct)
+        elif resource_type == 'rpc':
+            return ParsedRPCNode.from_dict(dct)
+        elif resource_type == 'sql':
+            return ParsedSqlNode.from_dict(dct)
+        elif resource_type == 'test':
+            if 'test_metadata' in dct:
+                return ParsedGenericTestNode.from_dict(dct)
+            else:
+                return ParsedSingularTestNode.from_dict(dct)
+        elif resource_type == 'operation':
+            return ParsedHookNode.from_dict(dct)
+        elif resource_type == 'seed':
+            return ParsedSeedNode.from_dict(dct)
+        elif resource_type == 'snapshot':
+            return ParsedSnapshotNode.from_dict(dct)
+        else:
+            return cls.from_dict(dct)
+
     def _persist_column_docs(self) -> bool:
-        return bool(self.config.persist_docs.get("columns"))
+        if hasattr(self.config, 'persist_docs'):
+            assert isinstance(self.config, NodeConfig)
+            return bool(self.config.persist_docs.get('columns'))
+        return False
 
     def _persist_relation_docs(self) -> bool:
-        return bool(self.config.persist_docs.get("relation"))
+        if hasattr(self.config, 'persist_docs'):
+            assert isinstance(self.config, NodeConfig)
+            return bool(self.config.persist_docs.get('relation'))
+        return False
 
     def same_body(self: T, other: T) -> bool:
         return self.raw_sql == other.raw_sql
@@ -221,7 +301,9 @@ class ParsedNode(ParsedNodeDefaults, ParsedNodeMixins):
 
         if self._persist_column_docs():
             # assert other._persist_column_docs()
-            column_descriptions = {k: v.description for k, v in self.columns.items()}
+            column_descriptions = {
+                k: v.description for k, v in self.columns.items()
+            }
             other_column_descriptions = {
                 k: v.description for k, v in other.columns.items()
             }
@@ -235,7 +317,7 @@ class ParsedNode(ParsedNodeDefaults, ParsedNodeMixins):
         # compares the configured value, rather than the ultimate value (so
         # generate_*_name and unset values derived from the target are
         # ignored)
-        keys = ("database", "schema", "alias")
+        keys = ('database', 'schema', 'alias')
         for key in keys:
             mine = self.unrendered_config.get(key)
             others = other.unrendered_config.get(key)
@@ -254,34 +336,42 @@ class ParsedNode(ParsedNodeDefaults, ParsedNodeMixins):
             return False
 
         return (
-            self.same_body(old)
-            and self.same_config(old)
-            and self.same_persisted_description(old)
-            and self.same_fqn(old)
-            and self.same_database_representation(old)
-            and True
+            self.same_body(old) and
+            self.same_config(old) and
+            self.same_persisted_description(old) and
+            self.same_fqn(old) and
+            self.same_database_representation(old) and
+            True
         )
 
 
 @dataclass
 class ParsedAnalysisNode(ParsedNode):
-    resource_type: NodeType = field(metadata={"restrict": [NodeType.Analysis]})
+    resource_type: NodeType = field(metadata={'restrict': [NodeType.Analysis]})
 
 
 @dataclass
 class ParsedHookNode(ParsedNode):
-    resource_type: NodeType = field(metadata={"restrict": [NodeType.Operation]})
+    resource_type: NodeType = field(
+        metadata={'restrict': [NodeType.Operation]}
+    )
     index: Optional[int] = None
 
 
 @dataclass
 class ParsedModelNode(ParsedNode):
-    resource_type: NodeType = field(metadata={"restrict": [NodeType.Model]})
+    resource_type: NodeType = field(metadata={'restrict': [NodeType.Model]})
+
+
+# TODO: rm?
+@dataclass
+class ParsedRPCNode(ParsedNode):
+    resource_type: NodeType = field(metadata={'restrict': [NodeType.RPCCall]})
 
 
 @dataclass
-class ParsedRPCNode(ParsedNode):
-    resource_type: NodeType = field(metadata={"restrict": [NodeType.RPCCall]})
+class ParsedSqlNode(ParsedNode):
+    resource_type: NodeType = field(metadata={'restrict': [NodeType.SqlOperation]})
 
 
 def same_seeds(first: ParsedNode, second: ParsedNode) -> bool:
@@ -291,31 +381,31 @@ def same_seeds(first: ParsedNode, second: ParsedNode) -> bool:
     # if the current checksum is a path, we want to log a warning.
     result = first.checksum == second.checksum
 
-    if first.checksum.name == "path":
+    if first.checksum.name == 'path':
         msg: str
-        if second.checksum.name != "path":
+        if second.checksum.name != 'path':
             msg = (
-                f"Found a seed ({first.package_name}.{first.name}) "
-                f">{MAXIMUM_SEED_SIZE_NAME} in size. The previous file was "
-                f"<={MAXIMUM_SEED_SIZE_NAME}, so it has changed"
+                f'Found a seed ({first.package_name}.{first.name}) '
+                f'>{MAXIMUM_SEED_SIZE_NAME} in size. The previous file was '
+                f'<={MAXIMUM_SEED_SIZE_NAME}, so it has changed'
             )
         elif result:
             msg = (
-                f"Found a seed ({first.package_name}.{first.name}) "
-                f">{MAXIMUM_SEED_SIZE_NAME} in size at the same path, dbt "
-                f"cannot tell if it has changed: assuming they are the same"
+                f'Found a seed ({first.package_name}.{first.name}) '
+                f'>{MAXIMUM_SEED_SIZE_NAME} in size at the same path, dbt '
+                f'cannot tell if it has changed: assuming they are the same'
             )
         elif not result:
             msg = (
-                f"Found a seed ({first.package_name}.{first.name}) "
-                f">{MAXIMUM_SEED_SIZE_NAME} in size. The previous file was in "
-                f"a different location, assuming it has changed"
+                f'Found a seed ({first.package_name}.{first.name}) '
+                f'>{MAXIMUM_SEED_SIZE_NAME} in size. The previous file was in '
+                f'a different location, assuming it has changed'
             )
         else:
             msg = (
-                f"Found a seed ({first.package_name}.{first.name}) "
-                f">{MAXIMUM_SEED_SIZE_NAME} in size. The previous file had a "
-                f"checksum type of {second.checksum.name}, so it has changed"
+                f'Found a seed ({first.package_name}.{first.name}) '
+                f'>{MAXIMUM_SEED_SIZE_NAME} in size. The previous file had a '
+                f'checksum type of {second.checksum.name}, so it has changed'
             )
         warn_or_error(msg, node=first)
 
@@ -325,7 +415,7 @@ def same_seeds(first: ParsedNode, second: ParsedNode) -> bool:
 @dataclass
 class ParsedSeedNode(ParsedNode):
     # keep this in sync with CompiledSeedNode!
-    resource_type: NodeType = field(metadata={"restrict": [NodeType.Seed]})
+    resource_type: NodeType = field(metadata={'restrict': [NodeType.Seed]})
     config: SeedConfig = field(default_factory=SeedConfig)
 
     @property
@@ -340,6 +430,9 @@ class ParsedSeedNode(ParsedNode):
 @dataclass
 class TestMetadata(dbtClassMixin, Replaceable):
     name: str
+    # kwargs are the args that are left in the test builder after
+    # removing configs. They are set from the test builder when
+    # the test node is created.
     kwargs: Dict[str, Any] = field(default_factory=dict)
     namespace: Optional[str] = None
 
@@ -350,31 +443,40 @@ class HasTestMetadata(dbtClassMixin):
 
 
 @dataclass
-class ParsedDataTestNode(ParsedNode):
-    resource_type: NodeType = field(metadata={"restrict": [NodeType.Test]})
-    config: TestConfig = field(default_factory=TestConfig)
+class ParsedSingularTestNode(ParsedNode):
+    resource_type: NodeType = field(metadata={'restrict': [NodeType.Test]})
+    # Was not able to make mypy happy and keep the code working. We need to
+    # refactor the various configs.
+    config: TestConfig = field(default_factory=TestConfig)  # type: ignore
+
+    @property
+    def test_node_type(self):
+        return 'singular'
 
 
 @dataclass
-class ParsedSchemaTestNode(ParsedNode, HasTestMetadata):
-    # keep this in sync with CompiledSchemaTestNode!
-    resource_type: NodeType = field(metadata={"restrict": [NodeType.Test]})
+class ParsedGenericTestNode(ParsedNode, HasTestMetadata):
+    # keep this in sync with CompiledGenericTestNode!
+    resource_type: NodeType = field(metadata={'restrict': [NodeType.Test]})
     column_name: Optional[str] = None
-    config: TestConfig = field(default_factory=TestConfig)
-
-    def same_config(self, other) -> bool:
-        return self.unrendered_config.get("severity") == other.unrendered_config.get(
-            "severity"
-        )
-
-    def same_column_name(self, other) -> bool:
-        return self.column_name == other.column_name
+    file_key_name: Optional[str] = None
+    # Was not able to make mypy happy and keep the code working. We need to
+    # refactor the various configs.
+    config: TestConfig = field(default_factory=TestConfig)  # type: ignore
 
     def same_contents(self, other) -> bool:
         if other is None:
             return False
 
-        return self.same_config(other) and self.same_fqn(other) and True
+        return (
+            self.same_config(other) and
+            self.same_fqn(other) and
+            True
+        )
+
+    @property
+    def test_node_type(self):
+        return 'generic'
 
 
 @dataclass
@@ -385,13 +487,13 @@ class IntermediateSnapshotNode(ParsedNode):
     # defined in config blocks. To fix that, we have an intermediate type that
     # uses a regular node config, which the snapshot parser will then convert
     # into a full ParsedSnapshotNode after rendering.
-    resource_type: NodeType = field(metadata={"restrict": [NodeType.Snapshot]})
+    resource_type: NodeType = field(metadata={'restrict': [NodeType.Snapshot]})
     config: EmptySnapshotConfig = field(default_factory=EmptySnapshotConfig)
 
 
 @dataclass
 class ParsedSnapshotNode(ParsedNode):
-    resource_type: NodeType = field(metadata={"restrict": [NodeType.Snapshot]})
+    resource_type: NodeType = field(metadata={'restrict': [NodeType.Snapshot]})
     config: SnapshotConfig
 
 
@@ -401,6 +503,7 @@ class ParsedPatch(HasYamlMetadata, Replaceable):
     description: str
     meta: Dict[str, Any]
     docs: Docs
+    config: Dict[str, Any]
 
 
 # The parsed node update is only the 'patch', not the test. The test became a
@@ -420,33 +523,27 @@ class ParsedMacroPatch(ParsedPatch):
 class ParsedMacro(UnparsedBaseNode, HasUniqueID):
     name: str
     macro_sql: str
-    resource_type: NodeType = field(metadata={"restrict": [NodeType.Macro]})
+    resource_type: NodeType = field(metadata={'restrict': [NodeType.Macro]})
     # TODO: can macros even have tags?
     tags: List[str] = field(default_factory=list)
     # TODO: is this ever populated?
     depends_on: MacroDependsOn = field(default_factory=MacroDependsOn)
-    description: str = ""
+    description: str = ''
     meta: Dict[str, Any] = field(default_factory=dict)
     docs: Docs = field(default_factory=Docs)
     patch_path: Optional[str] = None
     arguments: List[MacroArgument] = field(default_factory=list)
-
-    def local_vars(self):
-        return {}
+    created_at: float = field(default_factory=lambda: time.time())
 
     def patch(self, patch: ParsedMacroPatch):
-        self.patch_path: Optional[str] = patch.original_file_path
+        self.patch_path: Optional[str] = patch.file_id
         self.description = patch.description
+        self.created_at = time.time()
         self.meta = patch.meta
         self.docs = patch.docs
         self.arguments = patch.arguments
-        if flags.STRICT_MODE:
-            # What does this actually validate?
-            assert isinstance(self, dbtClassMixin)
-            dct = self.to_dict(omit_none=False)
-            self.validate(dct)
 
-    def same_contents(self, other: Optional["ParsedMacro"]) -> bool:
+    def same_contents(self, other: Optional['ParsedMacro']) -> bool:
         if other is None:
             return False
         # the only thing that makes one macro different from another with the
@@ -463,7 +560,7 @@ class ParsedDocumentation(UnparsedDocumentation, HasUniqueID):
     def search_name(self):
         return self.name
 
-    def same_contents(self, other: Optional["ParsedDocumentation"]) -> bool:
+    def same_contents(self, other: Optional['ParsedDocumentation']) -> bool:
         if other is None:
             return False
         # the only thing that makes one doc different from another with the
@@ -482,11 +579,11 @@ def normalize_test(testdef: TestDef) -> Dict[str, Any]:
 class UnpatchedSourceDefinition(UnparsedBaseNode, HasUniqueID, HasFqn):
     source: UnparsedSourceDefinition
     table: UnparsedSourceTableDefinition
-    resource_type: NodeType = field(metadata={"restrict": [NodeType.Source]})
+    resource_type: NodeType = field(metadata={'restrict': [NodeType.Source]})
     patch_path: Optional[Path] = None
 
     def get_full_source_name(self):
-        return f"{self.source.name}_{self.table.name}"
+        return f'{self.source.name}_{self.table.name}'
 
     def get_source_representation(self):
         return f'source("{self.source.name}", "{self.table.name}")'
@@ -511,7 +608,9 @@ class UnpatchedSourceDefinition(UnparsedBaseNode, HasUniqueID, HasFqn):
         else:
             return self.table.columns
 
-    def get_tests(self) -> Iterator[Tuple[Dict[str, Any], Optional[UnparsedColumn]]]:
+    def get_tests(
+        self
+    ) -> Iterator[Tuple[Dict[str, Any], Optional[UnparsedColumn]]]:
         for test in self.tests:
             yield normalize_test(test), None
 
@@ -529,20 +628,30 @@ class UnpatchedSourceDefinition(UnparsedBaseNode, HasUniqueID, HasFqn):
 
 
 @dataclass
-class ParsedSourceDefinition(
-    UnparsedBaseNode, HasUniqueID, HasRelationMetadata, HasFqn
+class ParsedSourceMandatory(
+    UnparsedBaseNode,
+    HasUniqueID,
+    HasRelationMetadata,
+    HasFqn,
 ):
     name: str
     source_name: str
     source_description: str
     loader: str
     identifier: str
-    resource_type: NodeType = field(metadata={"restrict": [NodeType.Source]})
+    resource_type: NodeType = field(metadata={'restrict': [NodeType.Source]})
+
+
+@dataclass
+class ParsedSourceDefinition(
+    NodeInfoMixin,
+    ParsedSourceMandatory
+):
     quoting: Quoting = field(default_factory=Quoting)
     loaded_at_field: Optional[str] = None
     freshness: Optional[FreshnessThreshold] = None
     external: Optional[ExternalTable] = None
-    description: str = ""
+    description: str = ''
     columns: Dict[str, ColumnInfo] = field(default_factory=dict)
     meta: Dict[str, Any] = field(default_factory=dict)
     source_meta: Dict[str, Any] = field(default_factory=dict)
@@ -551,35 +660,43 @@ class ParsedSourceDefinition(
     patch_path: Optional[Path] = None
     unrendered_config: Dict[str, Any] = field(default_factory=dict)
     relation_name: Optional[str] = None
+    created_at: float = field(default_factory=lambda: time.time())
 
-    def same_database_representation(self, other: "ParsedSourceDefinition") -> bool:
+    def __post_serialize__(self, dct):
+        if '_event_status' in dct:
+            del dct['_event_status']
+        return dct
+
+    def same_database_representation(
+        self, other: 'ParsedSourceDefinition'
+    ) -> bool:
         return (
-            self.database == other.database
-            and self.schema == other.schema
-            and self.identifier == other.identifier
-            and True
+            self.database == other.database and
+            self.schema == other.schema and
+            self.identifier == other.identifier and
+            True
         )
 
-    def same_quoting(self, other: "ParsedSourceDefinition") -> bool:
+    def same_quoting(self, other: 'ParsedSourceDefinition') -> bool:
         return self.quoting == other.quoting
 
-    def same_freshness(self, other: "ParsedSourceDefinition") -> bool:
+    def same_freshness(self, other: 'ParsedSourceDefinition') -> bool:
         return (
-            self.freshness == other.freshness
-            and self.loaded_at_field == other.loaded_at_field
-            and True
+            self.freshness == other.freshness and
+            self.loaded_at_field == other.loaded_at_field and
+            True
         )
 
-    def same_external(self, other: "ParsedSourceDefinition") -> bool:
+    def same_external(self, other: 'ParsedSourceDefinition') -> bool:
         return self.external == other.external
 
-    def same_config(self, old: "ParsedSourceDefinition") -> bool:
+    def same_config(self, old: 'ParsedSourceDefinition') -> bool:
         return self.config.same_contents(
             self.unrendered_config,
             old.unrendered_config,
         )
 
-    def same_contents(self, old: Optional["ParsedSourceDefinition"]) -> bool:
+    def same_contents(self, old: Optional['ParsedSourceDefinition']) -> bool:
         # existing when it didn't before is a change!
         if old is None:
             return True
@@ -593,17 +710,17 @@ class ParsedSourceDefinition(
         # metadata/tags changes are not "changes"
         # patching/description changes are not "changes"
         return (
-            self.same_database_representation(old)
-            and self.same_fqn(old)
-            and self.same_config(old)
-            and self.same_quoting(old)
-            and self.same_freshness(old)
-            and self.same_external(old)
-            and True
+            self.same_database_representation(old) and
+            self.same_fqn(old) and
+            self.same_config(old) and
+            self.same_quoting(old) and
+            self.same_freshness(old) and
+            self.same_external(old) and
+            True
         )
 
     def get_full_source_name(self):
-        return f"{self.source_name}_{self.name}"
+        return f'{self.source_name}_{self.name}'
 
     def get_source_representation(self):
         return f'source("{self.source.name}", "{self.table.name}")'
@@ -624,6 +741,10 @@ class ParsedSourceDefinition(
     def depends_on_nodes(self):
         return []
 
+    @property
+    def depends_on(self):
+        return DependsOn(macros=[], nodes=[])
+
     @property
     def refs(self):
         return []
@@ -638,7 +759,7 @@ class ParsedSourceDefinition(
 
     @property
     def search_name(self):
-        return f"{self.source_name}.{self.name}"
+        return f'{self.source_name}.{self.name}'
 
 
 @dataclass
@@ -647,12 +768,15 @@ class ParsedExposure(UnparsedBaseNode, HasUniqueID, HasFqn):
     type: ExposureType
     owner: ExposureOwner
     resource_type: NodeType = NodeType.Exposure
-    description: str = ""
+    description: str = ''
     maturity: Optional[MaturityType] = None
+    meta: Dict[str, Any] = field(default_factory=dict)
+    tags: List[str] = field(default_factory=list)
     url: Optional[str] = None
     depends_on: DependsOn = field(default_factory=DependsOn)
     refs: List[List[str]] = field(default_factory=list)
     sources: List[List[str]] = field(default_factory=list)
+    created_at: float = field(default_factory=lambda: time.time())
 
     @property
     def depends_on_nodes(self):
@@ -662,50 +786,135 @@ class ParsedExposure(UnparsedBaseNode, HasUniqueID, HasFqn):
     def search_name(self):
         return self.name
 
-    # no tags for now, but we could definitely add them
-    @property
-    def tags(self):
-        return []
-
-    def same_depends_on(self, old: "ParsedExposure") -> bool:
+    def same_depends_on(self, old: 'ParsedExposure') -> bool:
         return set(self.depends_on.nodes) == set(old.depends_on.nodes)
 
-    def same_description(self, old: "ParsedExposure") -> bool:
+    def same_description(self, old: 'ParsedExposure') -> bool:
         return self.description == old.description
 
-    def same_maturity(self, old: "ParsedExposure") -> bool:
+    def same_maturity(self, old: 'ParsedExposure') -> bool:
         return self.maturity == old.maturity
 
-    def same_owner(self, old: "ParsedExposure") -> bool:
+    def same_owner(self, old: 'ParsedExposure') -> bool:
         return self.owner == old.owner
 
-    def same_exposure_type(self, old: "ParsedExposure") -> bool:
+    def same_exposure_type(self, old: 'ParsedExposure') -> bool:
         return self.type == old.type
 
-    def same_url(self, old: "ParsedExposure") -> bool:
+    def same_url(self, old: 'ParsedExposure') -> bool:
         return self.url == old.url
 
-    def same_contents(self, old: Optional["ParsedExposure"]) -> bool:
+    def same_contents(self, old: Optional['ParsedExposure']) -> bool:
         # existing when it didn't before is a change!
+        # metadata/tags changes are not "changes"
         if old is None:
             return True
 
         return (
-            self.same_fqn(old)
-            and self.same_exposure_type(old)
-            and self.same_owner(old)
-            and self.same_maturity(old)
-            and self.same_url(old)
-            and self.same_description(old)
-            and self.same_depends_on(old)
-            and True
+            self.same_fqn(old) and
+            self.same_exposure_type(old) and
+            self.same_owner(old) and
+            self.same_maturity(old) and
+            self.same_url(old) and
+            self.same_description(old) and
+            self.same_depends_on(old) and
+            True
         )
 
 
+@dataclass
+class ParsedMetric(UnparsedBaseNode, HasUniqueID, HasFqn):
+    model: str
+    name: str
+    description: str
+    label: str
+    type: str
+    sql: Optional[str]
+    timestamp: Optional[str]
+    filters: List[MetricFilter]
+    time_grains: List[str]
+    dimensions: List[str]
+    resource_type: NodeType = NodeType.Metric
+    meta: Dict[str, Any] = field(default_factory=dict)
+    tags: List[str] = field(default_factory=list)
+    sources: List[List[str]] = field(default_factory=list)
+    depends_on: DependsOn = field(default_factory=DependsOn)
+    refs: List[List[str]] = field(default_factory=list)
+    created_at: float = field(default_factory=lambda: time.time())
+
+    @property
+    def depends_on_nodes(self):
+        return self.depends_on.nodes
+
+    @property
+    def search_name(self):
+        return self.name
+
+    def same_model(self, old: 'ParsedMetric') -> bool:
+        return self.model == old.model
+
+    def same_dimensions(self, old: 'ParsedMetric') -> bool:
+        return self.dimensions == old.dimensions
+
+    def same_filters(self, old: 'ParsedMetric') -> bool:
+        return self.filters == old.filters
+
+    def same_description(self, old: 'ParsedMetric') -> bool:
+        return self.description == old.description
+
+    def same_label(self, old: 'ParsedMetric') -> bool:
+        return self.label == old.label
+
+    def same_type(self, old: 'ParsedMetric') -> bool:
+        return self.type == old.type
+
+    def same_sql(self, old: 'ParsedMetric') -> bool:
+        return self.sql == old.sql
+
+    def same_timestamp(self, old: 'ParsedMetric') -> bool:
+        return self.timestamp == old.timestamp
+
+    def same_time_grains(self, old: 'ParsedMetric') -> bool:
+        return self.time_grains == old.time_grains
+
+    def same_contents(self, old: Optional['ParsedMetric']) -> bool:
+        # existing when it didn't before is a change!
+        # metadata/tags changes are not "changes"
+        if old is None:
+            return True
+
+        return (
+            self.same_model(old) and
+            self.same_dimensions(old) and
+            self.same_filters(old) and
+            self.same_description(old) and
+            self.same_label(old) and
+            self.same_type(old) and
+            self.same_sql(old) and
+            self.same_timestamp(old) and
+            self.same_time_grains(old) and
+            True
+        )
+
+
+ManifestNodes = Union[
+    ParsedAnalysisNode,
+    ParsedSingularTestNode,
+    ParsedHookNode,
+    ParsedModelNode,
+    ParsedRPCNode,
+    ParsedSqlNode,
+    ParsedGenericTestNode,
+    ParsedSeedNode,
+    ParsedSnapshotNode,
+]
+
+
 ParsedResource = Union[
     ParsedDocumentation,
     ParsedMacro,
     ParsedNode,
     ParsedExposure,
+    ParsedMetric,
     ParsedSourceDefinition,
 ]

core/dbt/contracts/graph/unparsed.py

@@ -4,12 +4,13 @@ from dbt.contracts.util import (
     Mergeable,
     Replaceable,
 )
-
 # trigger the PathEncoder
 import dbt.helper_types  # noqa:F401
 from dbt.exceptions import CompilationException
 
-from dbt.dataclass_schema import dbtClassMixin, StrEnum, ExtensibleDbtClassMixin
+from dbt.dataclass_schema import (
+    dbtClassMixin, StrEnum, ExtensibleDbtClassMixin
+)
 
 from dataclasses import dataclass, field
 from datetime import timedelta
@@ -24,6 +25,10 @@ class UnparsedBaseNode(dbtClassMixin, Replaceable):
     path: str
     original_file_path: str
 
+    @property
+    def file_id(self):
+        return f'{self.package_name}://{self.original_file_path}'
+
 
 @dataclass
 class HasSQL:
@@ -36,25 +41,27 @@ class HasSQL:
 
 @dataclass
 class UnparsedMacro(UnparsedBaseNode, HasSQL):
-    resource_type: NodeType = field(metadata={"restrict": [NodeType.Macro]})
+    resource_type: NodeType = field(metadata={'restrict': [NodeType.Macro]})
+
+
+@dataclass
+class UnparsedGenericTest(UnparsedBaseNode, HasSQL):
+    resource_type: NodeType = field(metadata={'restrict': [NodeType.Macro]})
 
 
 @dataclass
 class UnparsedNode(UnparsedBaseNode, HasSQL):
     name: str
-    resource_type: NodeType = field(
-        metadata={
-            "restrict": [
-                NodeType.Model,
-                NodeType.Analysis,
-                NodeType.Test,
-                NodeType.Snapshot,
-                NodeType.Operation,
-                NodeType.Seed,
-                NodeType.RPCCall,
-            ]
-        }
-    )
+    resource_type: NodeType = field(metadata={'restrict': [
+        NodeType.Model,
+        NodeType.Analysis,
+        NodeType.Test,
+        NodeType.Snapshot,
+        NodeType.Operation,
+        NodeType.Seed,
+        NodeType.RPCCall,
+        NodeType.SqlOperation,
+    ]})
 
     @property
     def search_name(self):
@@ -63,7 +70,9 @@ class UnparsedNode(UnparsedBaseNode, HasSQL):
 
 @dataclass
 class UnparsedRunHook(UnparsedNode):
-    resource_type: NodeType = field(metadata={"restrict": [NodeType.Operation]})
+    resource_type: NodeType = field(
+        metadata={'restrict': [NodeType.Operation]}
+    )
     index: Optional[int] = None
 
 
@@ -73,9 +82,10 @@ class Docs(dbtClassMixin, Replaceable):
 
 
 @dataclass
-class HasDocs(AdditionalPropertiesMixin, ExtensibleDbtClassMixin, Replaceable):
+class HasDocs(AdditionalPropertiesMixin, ExtensibleDbtClassMixin,
+              Replaceable):
     name: str
-    description: str = ""
+    description: str = ''
     meta: Dict[str, Any] = field(default_factory=dict)
     data_type: Optional[str] = None
     docs: Docs = field(default_factory=Docs)
@@ -116,14 +126,23 @@ class HasYamlMetadata(dbtClassMixin):
     yaml_key: str
     package_name: str
 
+    @property
+    def file_id(self):
+        return f'{self.package_name}://{self.original_file_path}'
+
 
 @dataclass
-class UnparsedAnalysisUpdate(HasColumnDocs, HasDocs, HasYamlMetadata):
+class HasConfig():
+    config: Dict[str, Any] = field(default_factory=dict)
+
+
+@dataclass
+class UnparsedAnalysisUpdate(HasConfig, HasColumnDocs, HasDocs, HasYamlMetadata):
     pass
 
 
 @dataclass
-class UnparsedNodeUpdate(HasColumnTests, HasTests, HasYamlMetadata):
+class UnparsedNodeUpdate(HasConfig, HasColumnTests, HasTests, HasYamlMetadata):
     quote_columns: Optional[bool] = None
 
 
@@ -131,43 +150,47 @@ class UnparsedNodeUpdate(HasColumnTests, HasTests, HasYamlMetadata):
 class MacroArgument(dbtClassMixin):
     name: str
     type: Optional[str] = None
-    description: str = ""
+    description: str = ''
 
 
 @dataclass
-class UnparsedMacroUpdate(HasDocs, HasYamlMetadata):
+class UnparsedMacroUpdate(HasConfig, HasDocs, HasYamlMetadata):
     arguments: List[MacroArgument] = field(default_factory=list)
 
 
 class TimePeriod(StrEnum):
-    minute = "minute"
-    hour = "hour"
-    day = "day"
+    minute = 'minute'
+    hour = 'hour'
+    day = 'day'
 
     def plural(self) -> str:
-        return str(self) + "s"
+        return str(self) + 's'
 
 
 @dataclass
-class Time(dbtClassMixin, Replaceable):
-    count: int
-    period: TimePeriod
+class Time(dbtClassMixin, Mergeable):
+    count: Optional[int] = None
+    period: Optional[TimePeriod] = None
 
     def exceeded(self, actual_age: float) -> bool:
-        kwargs = {self.period.plural(): self.count}
+        if self.period is None or self.count is None:
+            return False
+        kwargs: Dict[str, int] = {self.period.plural(): self.count}
         difference = timedelta(**kwargs).total_seconds()
         return actual_age > difference
 
+    def __bool__(self):
+        return self.count is not None and self.period is not None
+
 
 @dataclass
 class FreshnessThreshold(dbtClassMixin, Mergeable):
-    warn_after: Optional[Time] = None
-    error_after: Optional[Time] = None
+    warn_after: Optional[Time] = field(default_factory=Time)
+    error_after: Optional[Time] = field(default_factory=Time)
     filter: Optional[str] = None
 
     def status(self, age: float) -> "dbt.contracts.results.FreshnessStatus":
         from dbt.contracts.results import FreshnessStatus
-
         if self.error_after and self.error_after.exceeded(age):
             return FreshnessStatus.Error
         elif self.warn_after and self.warn_after.exceeded(age):
@@ -176,25 +199,28 @@ class FreshnessThreshold(dbtClassMixin, Mergeable):
             return FreshnessStatus.Pass
 
     def __bool__(self):
-        return self.warn_after is not None or self.error_after is not None
+        return bool(self.warn_after) or bool(self.error_after)
 
 
 @dataclass
-class AdditionalPropertiesAllowed(AdditionalPropertiesMixin, ExtensibleDbtClassMixin):
+class AdditionalPropertiesAllowed(
+    AdditionalPropertiesMixin,
+    ExtensibleDbtClassMixin
+):
     _extra: Dict[str, Any] = field(default_factory=dict)
 
 
 @dataclass
 class ExternalPartition(AdditionalPropertiesAllowed, Replaceable):
-    name: str = ""
-    description: str = ""
-    data_type: str = ""
+    name: str = ''
+    description: str = ''
+    data_type: str = ''
     meta: Dict[str, Any] = field(default_factory=dict)
 
     def __post_init__(self):
-        if self.name == "" or self.data_type == "":
+        if self.name == '' or self.data_type == '':
             raise CompilationException(
-                "External partition columns must have names and data types"
+                'External partition columns must have names and data types'
             )
 
 
@@ -223,39 +249,44 @@ class UnparsedSourceTableDefinition(HasColumnTests, HasTests):
     loaded_at_field: Optional[str] = None
     identifier: Optional[str] = None
     quoting: Quoting = field(default_factory=Quoting)
-    freshness: Optional[FreshnessThreshold] = field(default_factory=FreshnessThreshold)
+    freshness: Optional[FreshnessThreshold] = field(
+        default_factory=FreshnessThreshold
+    )
     external: Optional[ExternalTable] = None
     tags: List[str] = field(default_factory=list)
 
     def __post_serialize__(self, dct):
         dct = super().__post_serialize__(dct)
-        if "freshness" not in dct and self.freshness is None:
-            dct["freshness"] = None
+        if 'freshness' not in dct and self.freshness is None:
+            dct['freshness'] = None
         return dct
 
 
 @dataclass
 class UnparsedSourceDefinition(dbtClassMixin, Replaceable):
     name: str
-    description: str = ""
+    description: str = ''
     meta: Dict[str, Any] = field(default_factory=dict)
     database: Optional[str] = None
     schema: Optional[str] = None
-    loader: str = ""
+    loader: str = ''
     quoting: Quoting = field(default_factory=Quoting)
-    freshness: Optional[FreshnessThreshold] = field(default_factory=FreshnessThreshold)
+    freshness: Optional[FreshnessThreshold] = field(
+        default_factory=FreshnessThreshold
+    )
     loaded_at_field: Optional[str] = None
     tables: List[UnparsedSourceTableDefinition] = field(default_factory=list)
     tags: List[str] = field(default_factory=list)
+    config: Dict[str, Any] = field(default_factory=dict)
 
     @property
-    def yaml_key(self) -> "str":
-        return "sources"
+    def yaml_key(self) -> 'str':
+        return 'sources'
 
     def __post_serialize__(self, dct):
         dct = super().__post_serialize__(dct)
-        if "freshnewss" not in dct and self.freshness is None:
-            dct["freshness"] = None
+        if 'freshness' not in dct and self.freshness is None:
+            dct['freshness'] = None
         return dct
 
 
@@ -269,7 +300,9 @@ class SourceTablePatch(dbtClassMixin):
     loaded_at_field: Optional[str] = None
     identifier: Optional[str] = None
     quoting: Quoting = field(default_factory=Quoting)
-    freshness: Optional[FreshnessThreshold] = field(default_factory=FreshnessThreshold)
+    freshness: Optional[FreshnessThreshold] = field(
+        default_factory=FreshnessThreshold
+    )
     external: Optional[ExternalTable] = None
     tags: Optional[List[str]] = None
     tests: Optional[List[TestDef]] = None
@@ -277,13 +310,13 @@ class SourceTablePatch(dbtClassMixin):
 
     def to_patch_dict(self) -> Dict[str, Any]:
         dct = self.to_dict(omit_none=True)
-        remove_keys = "name"
+        remove_keys = ('name')
         for key in remove_keys:
             if key in dct:
                 del dct[key]
 
         if self.freshness is None:
-            dct["freshness"] = None
+            dct['freshness'] = None
 
         return dct
 
@@ -291,13 +324,13 @@ class SourceTablePatch(dbtClassMixin):
 @dataclass
 class SourcePatch(dbtClassMixin, Replaceable):
     name: str = field(
-        metadata=dict(description="The name of the source to override"),
+        metadata=dict(description='The name of the source to override'),
     )
     overrides: str = field(
-        metadata=dict(description="The package of the source to override"),
+        metadata=dict(description='The package of the source to override'),
     )
     path: Path = field(
-        metadata=dict(description="The path to the patch-defining yml file"),
+        metadata=dict(description='The path to the patch-defining yml file'),
     )
     description: Optional[str] = None
     meta: Optional[Dict[str, Any]] = None
@@ -314,13 +347,13 @@ class SourcePatch(dbtClassMixin, Replaceable):
 
     def to_patch_dict(self) -> Dict[str, Any]:
         dct = self.to_dict(omit_none=True)
-        remove_keys = ("name", "overrides", "tables", "path")
+        remove_keys = ('name', 'overrides', 'tables', 'path')
         for key in remove_keys:
             if key in dct:
                 del dct[key]
 
         if self.freshness is None:
-            dct["freshness"] = None
+            dct['freshness'] = None
 
         return dct
 
@@ -339,6 +372,10 @@ class UnparsedDocumentation(dbtClassMixin, Replaceable):
     path: str
     original_file_path: str
 
+    @property
+    def file_id(self):
+        return f'{self.package_name}://{self.original_file_path}'
+
     @property
     def resource_type(self):
         return NodeType.Documentation
@@ -352,9 +389,9 @@ class UnparsedDocumentationFile(UnparsedDocumentation):
 # can't use total_ordering decorator here, as str provides an ordering already
 # and it's not the one we want.
 class Maturity(StrEnum):
-    low = "low"
-    medium = "medium"
-    high = "high"
+    low = 'low'
+    medium = 'medium'
+    high = 'high'
 
     def __lt__(self, other):
         if not isinstance(other, Maturity):
@@ -379,17 +416,17 @@ class Maturity(StrEnum):
 
 
 class ExposureType(StrEnum):
-    Dashboard = "dashboard"
-    Notebook = "notebook"
-    Analysis = "analysis"
-    ML = "ml"
-    Application = "application"
+    Dashboard = 'dashboard'
+    Notebook = 'notebook'
+    Analysis = 'analysis'
+    ML = 'ml'
+    Application = 'application'
 
 
 class MaturityType(StrEnum):
-    Low = "low"
-    Medium = "medium"
-    High = "high"
+    Low = 'low'
+    Medium = 'medium'
+    High = 'high'
 
 
 @dataclass
@@ -403,7 +440,33 @@ class UnparsedExposure(dbtClassMixin, Replaceable):
     name: str
     type: ExposureType
     owner: ExposureOwner
-    description: str = ""
+    description: str = ''
     maturity: Optional[MaturityType] = None
+    meta: Dict[str, Any] = field(default_factory=dict)
+    tags: List[str] = field(default_factory=list)
     url: Optional[str] = None
     depends_on: List[str] = field(default_factory=list)
+
+
+@dataclass
+class MetricFilter(dbtClassMixin, Replaceable):
+    field: str
+    operator: str
+    # TODO : Can we make this Any?
+    value: str
+
+
+@dataclass
+class UnparsedMetric(dbtClassMixin, Replaceable):
+    model: str
+    name: str
+    label: str
+    type: str
+    description: str = ''
+    sql: Optional[str] = None
+    timestamp: Optional[str] = None
+    time_grains: List[str] = field(default_factory=list)
+    dimensions: List[str] = field(default_factory=list)
+    filters: List[MetricFilter] = field(default_factory=list)
+    meta: Dict[str, Any] = field(default_factory=dict)
+    tags: List[str] = field(default_factory=list)

core/dbt/contracts/project.py

@@ -1,30 +1,37 @@
 from dbt.contracts.util import Replaceable, Mergeable, list_str
-from dbt.contracts.connection import UserConfigContract, QueryComment
+from dbt.contracts.connection import QueryComment, UserConfigContract
 from dbt.helper_types import NoValue
-from dbt.logger import GLOBAL_LOGGER as logger  # noqa
-from dbt import tracking
-from dbt import ui
 from dbt.dataclass_schema import (
-    dbtClassMixin,
-    ValidationError,
+    dbtClassMixin, ValidationError,
     HyphenatedDbtClassMixin,
     ExtensibleDbtClassMixin,
-    register_pattern,
-    ValidatedStringMixin,
+    register_pattern, ValidatedStringMixin
 )
 from dataclasses import dataclass, field
 from typing import Optional, List, Dict, Union, Any
 from mashumaro.types import SerializableType
 
-PIN_PACKAGE_URL = "https://docs.getdbt.com/docs/package-management#section-specifying-package-versions"  # noqa
+PIN_PACKAGE_URL = 'https://docs.getdbt.com/docs/package-management#section-specifying-package-versions'  # noqa
 DEFAULT_SEND_ANONYMOUS_USAGE_STATS = True
 
 
 class Name(ValidatedStringMixin):
-    ValidationRegex = r"^[^\d\W]\w*$"
+    ValidationRegex = r'^[^\d\W]\w*$'
+
+    @classmethod
+    def is_valid(cls, value: Any) -> bool:
+        if not isinstance(value, str):
+            return False
+
+        try:
+            cls.validate(value)
+        except ValidationError:
+            return False
+
+        return True
 
 
-register_pattern(Name, r"^[^\d\W]\w*$")
+register_pattern(Name, r'^[^\d\W]\w*$')
 
 
 class SemverString(str, SerializableType):
@@ -32,7 +39,7 @@ class SemverString(str, SerializableType):
         return self
 
     @classmethod
-    def _deserialize(cls, value: str) -> "SemverString":
+    def _deserialize(cls, value: str) -> 'SemverString':
         return SemverString(value)
 
 
@@ -41,7 +48,7 @@ class SemverString(str, SerializableType):
 # 'semver lite'.
 register_pattern(
     SemverString,
-    r"^(?:0|[1-9]\d*)\.(?:0|[1-9]\d*)(\.(?:0|[1-9]\d*))?$",
+    r'^(?:0|[1-9]\d*)\.(?:0|[1-9]\d*)(\.(?:0|[1-9]\d*))?$',
 )
 
 
@@ -72,6 +79,7 @@ class GitPackage(Package):
     git: str
     revision: Optional[RawVersion] = None
     warn_unpinned: Optional[bool] = None
+    subdirectory: Optional[str] = None
 
     def get_revisions(self) -> List[str]:
         if self.revision is None:
@@ -84,6 +92,7 @@ class GitPackage(Package):
 class RegistryPackage(Package):
     package: str
     version: Union[RawVersion, List[RawVersion]]
+    install_prerelease: Optional[bool] = False
 
     def get_versions(self) -> List[str]:
         if isinstance(self.version, list):
@@ -107,7 +116,8 @@ class ProjectPackageMetadata:
 
     @classmethod
     def from_project(cls, project):
-        return cls(name=project.project_name, packages=project.packages.packages)
+        return cls(name=project.project_name,
+                   packages=project.packages.packages)
 
 
 @dataclass
@@ -125,46 +135,46 @@ class RegistryPackageMetadata(
 
 # A list of all the reserved words that packages may not have as names.
 BANNED_PROJECT_NAMES = {
-    "_sql_results",
-    "adapter",
-    "api",
-    "column",
-    "config",
-    "context",
-    "database",
-    "env",
-    "env_var",
-    "exceptions",
-    "execute",
-    "flags",
-    "fromjson",
-    "fromyaml",
-    "graph",
-    "invocation_id",
-    "load_agate_table",
-    "load_result",
-    "log",
-    "model",
-    "modules",
-    "post_hooks",
-    "pre_hooks",
-    "ref",
-    "render",
-    "return",
-    "run_started_at",
-    "schema",
-    "source",
-    "sql",
-    "sql_now",
-    "store_result",
-    "store_raw_result",
-    "target",
-    "this",
-    "tojson",
-    "toyaml",
-    "try_or_compiler_error",
-    "var",
-    "write",
+    '_sql_results',
+    'adapter',
+    'api',
+    'column',
+    'config',
+    'context',
+    'database',
+    'env',
+    'env_var',
+    'exceptions',
+    'execute',
+    'flags',
+    'fromjson',
+    'fromyaml',
+    'graph',
+    'invocation_id',
+    'load_agate_table',
+    'load_result',
+    'log',
+    'model',
+    'modules',
+    'post_hooks',
+    'pre_hooks',
+    'ref',
+    'render',
+    'return',
+    'run_started_at',
+    'schema',
+    'source',
+    'sql',
+    'sql_now',
+    'store_result',
+    'store_raw_result',
+    'target',
+    'this',
+    'tojson',
+    'toyaml',
+    'try_or_compiler_error',
+    'var',
+    'write',
 }
 
 
@@ -175,8 +185,10 @@ class Project(HyphenatedDbtClassMixin, Replaceable):
     config_version: int
     project_root: Optional[str] = None
     source_paths: Optional[List[str]] = None
+    model_paths: Optional[List[str]] = None
     macro_paths: Optional[List[str]] = None
     data_paths: Optional[List[str]] = None
+    seed_paths: Optional[List[str]] = None
     test_paths: Optional[List[str]] = None
     analysis_paths: Optional[List[str]] = None
     docs_paths: Optional[List[str]] = None
@@ -186,20 +198,22 @@ class Project(HyphenatedDbtClassMixin, Replaceable):
     clean_targets: Optional[List[str]] = None
     profile: Optional[str] = None
     log_path: Optional[str] = None
-    modules_path: Optional[str] = None
+    packages_install_path: Optional[str] = None
     quoting: Optional[Quoting] = None
     on_run_start: Optional[List[str]] = field(default_factory=list_str)
     on_run_end: Optional[List[str]] = field(default_factory=list_str)
     require_dbt_version: Optional[Union[List[str], str]] = None
+    dispatch: List[Dict[str, Any]] = field(default_factory=list)
     models: Dict[str, Any] = field(default_factory=dict)
     seeds: Dict[str, Any] = field(default_factory=dict)
     snapshots: Dict[str, Any] = field(default_factory=dict)
     analyses: Dict[str, Any] = field(default_factory=dict)
     sources: Dict[str, Any] = field(default_factory=dict)
+    tests: Dict[str, Any] = field(default_factory=dict)
     vars: Optional[Dict[str, Any]] = field(
         default=None,
         metadata=dict(
-            description="map project names to their vars override dicts",
+            description='map project names to their vars override dicts',
         ),
     )
     packages: List[PackageSpec] = field(default_factory=list)
@@ -208,10 +222,17 @@ class Project(HyphenatedDbtClassMixin, Replaceable):
     @classmethod
     def validate(cls, data):
         super().validate(data)
-        if data["name"] in BANNED_PROJECT_NAMES:
+        if data['name'] in BANNED_PROJECT_NAMES:
             raise ValidationError(
                 f"Invalid project name: {data['name']} is a reserved word"
             )
+        # validate dispatch config
+        if 'dispatch' in data and data['dispatch']:
+            entries = data['dispatch']
+            for entry in entries:
+                if ('macro_namespace' not in entry or 'search_order' not in entry or
+                        not isinstance(entry['search_order'], list)):
+                    raise ValidationError(f"Invalid project dispatch config: {entry}")
 
 
 @dataclass
@@ -220,25 +241,22 @@ class UserConfig(ExtensibleDbtClassMixin, Replaceable, UserConfigContract):
     use_colors: Optional[bool] = None
     partial_parse: Optional[bool] = None
     printer_width: Optional[int] = None
-
-    def set_values(self, cookie_dir):
-        if self.send_anonymous_usage_stats:
-            tracking.initialize_tracking(cookie_dir)
-        else:
-            tracking.do_not_track()
-
-        if self.use_colors is not None:
-            ui.use_colors(self.use_colors)
-
-        if self.printer_width:
-            ui.printer_width(self.printer_width)
+    write_json: Optional[bool] = None
+    warn_error: Optional[bool] = None
+    log_format: Optional[str] = None
+    debug: Optional[bool] = None
+    version_check: Optional[bool] = None
+    fail_fast: Optional[bool] = None
+    use_experimental_parser: Optional[bool] = None
+    static_parser: Optional[bool] = None
+    indirect_selection: Optional[str] = None
 
 
 @dataclass
 class ProfileConfig(HyphenatedDbtClassMixin, Replaceable):
-    profile_name: str = field(metadata={"preserve_underscore": True})
-    target_name: str = field(metadata={"preserve_underscore": True})
-    config: UserConfig
+    profile_name: str = field(metadata={'preserve_underscore': True})
+    target_name: str = field(metadata={'preserve_underscore': True})
+    user_config: UserConfig = field(metadata={'preserve_underscore': True})
     threads: int
     # TODO: make this a dynamic union of some kind?
     credentials: Optional[Dict[str, Any]]
@@ -256,7 +274,7 @@ class ConfiguredQuoting(Quoting, Replaceable):
 class Configuration(Project, ProfileConfig):
     cli_vars: Dict[str, Any] = field(
         default_factory=dict,
-        metadata={"preserve_underscore": True},
+        metadata={'preserve_underscore': True},
     )
     quoting: Optional[ConfiguredQuoting] = None
 

core/dbt/contracts/relation.py

@@ -1,31 +1,29 @@
 from collections.abc import Mapping
-from dataclasses import dataclass, fields
+from dataclasses import dataclass
 from typing import (
-    Optional,
-    Dict,
+    Optional, Dict,
 )
 from typing_extensions import Protocol
 
 from dbt.dataclass_schema import dbtClassMixin, StrEnum
 
-from dbt import deprecations
 from dbt.contracts.util import Replaceable
-from dbt.exceptions import CompilationException
+from dbt.exceptions import raise_dataclass_not_dict, CompilationException
 from dbt.utils import deep_merge
 
 
 class RelationType(StrEnum):
-    Table = "table"
-    View = "view"
-    CTE = "cte"
-    MaterializedView = "materializedview"
-    External = "external"
+    Table = 'table'
+    View = 'view'
+    CTE = 'cte'
+    MaterializedView = 'materializedview'
+    External = 'external'
 
 
 class ComponentName(StrEnum):
-    Database = "database"
-    Schema = "schema"
-    Identifier = "identifier"
+    Database = 'database'
+    Schema = 'schema'
+    Identifier = 'identifier'
 
 
 class HasQuoting(Protocol):
@@ -44,13 +42,10 @@ class FakeAPIObject(dbtClassMixin, Replaceable, Mapping):
             raise KeyError(key) from None
 
     def __iter__(self):
-        deprecations.warn("not-a-dictionary", obj=self)
-        for _, name in self._get_fields():
-            yield name
+        raise_dataclass_not_dict(self)
 
     def __len__(self):
-        deprecations.warn("not-a-dictionary", obj=self)
-        return len(fields(self.__class__))
+        raise_dataclass_not_dict(self)
 
     def incorporate(self, **kwargs):
         value = self.to_dict(omit_none=True)
@@ -73,7 +68,8 @@ class Policy(FakeAPIObject):
             return self.identifier
         else:
             raise ValueError(
-                "Got a key of {}, expected one of {}".format(key, list(ComponentName))
+                'Got a key of {}, expected one of {}'
+                .format(key, list(ComponentName))
             )
 
     def replace_dict(self, dct: Dict[ComponentName, bool]):
@@ -93,15 +89,15 @@ class Path(FakeAPIObject):
         # handle pesky jinja2.Undefined sneaking in here and messing up rende
         if not isinstance(self.database, (type(None), str)):
             raise CompilationException(
-                "Got an invalid path database: {}".format(self.database)
+                'Got an invalid path database: {}'.format(self.database)
             )
         if not isinstance(self.schema, (type(None), str)):
             raise CompilationException(
-                "Got an invalid path schema: {}".format(self.schema)
+                'Got an invalid path schema: {}'.format(self.schema)
             )
         if not isinstance(self.identifier, (type(None), str)):
             raise CompilationException(
-                "Got an invalid path identifier: {}".format(self.identifier)
+                'Got an invalid path identifier: {}'.format(self.identifier)
             )
 
     def get_lowered_part(self, key: ComponentName) -> Optional[str]:
@@ -119,7 +115,8 @@ class Path(FakeAPIObject):
             return self.identifier
         else:
             raise ValueError(
-                "Got a key of {}, expected one of {}".format(key, list(ComponentName))
+                'Got a key of {}, expected one of {}'
+                .format(key, list(ComponentName))
             )
 
     def replace_dict(self, dct: Dict[ComponentName, str]):

core/dbt/contracts/results.py

@@ -1,5 +1,7 @@
 from dbt.contracts.graph.manifest import CompileResultNode
-from dbt.contracts.graph.unparsed import FreshnessThreshold
+from dbt.contracts.graph.unparsed import (
+    FreshnessThreshold
+)
 from dbt.contracts.graph.parsed import ParsedSourceDefinition
 from dbt.contracts.util import (
     BaseArtifactMetadata,
@@ -9,10 +11,11 @@ from dbt.contracts.util import (
     schema_version,
 )
 from dbt.exceptions import InternalException
+from dbt.events.functions import fire_event
+from dbt.events.types import TimingInfoCollected
 from dbt.logger import (
     TimingProcessor,
     JsonOnly,
-    GLOBAL_LOGGER as logger,
 )
 from dbt.utils import lowercase
 from dbt.dataclass_schema import dbtClassMixin, StrEnum
@@ -22,13 +25,7 @@ import agate
 from dataclasses import dataclass, field
 from datetime import datetime
 from typing import (
-    Union,
-    Dict,
-    List,
-    Optional,
-    Any,
-    NamedTuple,
-    Sequence,
+    Union, Dict, List, Optional, Any, NamedTuple, Sequence,
 )
 
 from dbt.clients.system import write_json
@@ -58,7 +55,13 @@ class collect_timing_info:
     def __exit__(self, exc_type, exc_value, traceback):
         self.timing_info.end()
         with JsonOnly(), TimingProcessor(self.timing_info):
-            logger.debug("finished collecting timing info")
+            fire_event(TimingInfoCollected())
+
+
+class RunningStatus(StrEnum):
+    Started = 'started'
+    Compiling = 'compiling'
+    Executing = 'executing'
 
 
 class NodeStatus(StrEnum):
@@ -82,6 +85,7 @@ class TestStatus(StrEnum):
     Error = NodeStatus.Error
     Fail = NodeStatus.Fail
     Warn = NodeStatus.Warn
+    Skipped = NodeStatus.Skipped
 
 
 class FreshnessStatus(StrEnum):
@@ -98,13 +102,16 @@ class BaseResult(dbtClassMixin):
     thread_id: str
     execution_time: float
     adapter_response: Dict[str, Any]
-    message: Optional[Union[str, int]]
+    message: Optional[str]
+    failures: Optional[int]
 
     @classmethod
     def __pre_deserialize__(cls, data):
         data = super().__pre_deserialize__(data)
-        if "message" not in data:
-            data["message"] = None
+        if 'message' not in data:
+            data['message'] = None
+        if 'failures' not in data:
+            data['failures'] = None
         return data
 
 
@@ -116,8 +123,9 @@ class NodeResult(BaseResult):
 @dataclass
 class RunResult(NodeResult):
     agate_table: Optional[agate.Table] = field(
-        default=None,
-        metadata={"serialize": lambda x: None, "deserialize": lambda x: None},
+        default=None, metadata={
+            'serialize': lambda x: None, 'deserialize': lambda x: None
+        }
     )
 
     @property
@@ -161,6 +169,7 @@ def process_run_result(result: RunResult) -> RunResultOutput:
         execution_time=result.execution_time,
         message=result.message,
         adapter_response=result.adapter_response,
+        failures=result.failures
     )
 
 
@@ -183,7 +192,7 @@ class RunExecutionResult(
 
 
 @dataclass
-@schema_version("run-results", 1)
+@schema_version('run-results', 4)
 class RunResultsArtifact(ExecutionResult, ArtifactMixin):
     results: Sequence[RunResultOutput]
     args: Dict[str, Any] = field(default_factory=dict)
@@ -205,7 +214,7 @@ class RunResultsArtifact(ExecutionResult, ArtifactMixin):
             metadata=meta,
             results=processed_results,
             elapsed_time=elapsed_time,
-            args=args,
+            args=args
         )
 
     def write(self, path: str):
@@ -219,14 +228,15 @@ class RunOperationResult(ExecutionResult):
 
 @dataclass
 class RunOperationResultMetadata(BaseArtifactMetadata):
-    dbt_schema_version: str = field(
-        default_factory=lambda: str(RunOperationResultsArtifact.dbt_schema_version)
-    )
+    dbt_schema_version: str = field(default_factory=lambda: str(
+        RunOperationResultsArtifact.dbt_schema_version
+    ))
 
 
 @dataclass
-@schema_version("run-operation-result", 1)
+@schema_version('run-operation-result', 1)
 class RunOperationResultsArtifact(RunOperationResult, ArtifactMixin):
+
     @classmethod
     def from_success(
         cls,
@@ -245,7 +255,6 @@ class RunOperationResultsArtifact(RunOperationResult, ArtifactMixin):
             success=success,
         )
 
-
 # due to issues with typing.Union collapsing subclasses, this can't subclass
 # PartialResult
 
@@ -264,7 +273,7 @@ class SourceFreshnessResult(NodeResult):
 
 
 class FreshnessErrorEnum(StrEnum):
-    runtime_error = "runtime error"
+    runtime_error = 'runtime error'
 
 
 @dataclass
@@ -283,6 +292,9 @@ class SourceFreshnessOutput(dbtClassMixin):
     status: FreshnessStatus
     criteria: FreshnessThreshold
     adapter_response: Dict[str, Any]
+    timing: List[TimingInfo]
+    thread_id: str
+    execution_time: float
 
 
 @dataclass
@@ -294,11 +306,14 @@ class PartialSourceFreshnessResult(NodeResult):
         return False
 
 
-FreshnessNodeResult = Union[PartialSourceFreshnessResult, SourceFreshnessResult]
+FreshnessNodeResult = Union[PartialSourceFreshnessResult,
+                            SourceFreshnessResult]
 FreshnessNodeOutput = Union[SourceFreshnessRuntimeError, SourceFreshnessOutput]
 
 
-def process_freshness_result(result: FreshnessNodeResult) -> FreshnessNodeOutput:
+def process_freshness_result(
+    result: FreshnessNodeResult
+) -> FreshnessNodeOutput:
     unique_id = result.node.unique_id
     if result.status == FreshnessStatus.RuntimeErr:
         return SourceFreshnessRuntimeError(
@@ -310,15 +325,16 @@ def process_freshness_result(result: FreshnessNodeResult) -> FreshnessNodeOutput
     # we know that this must be a SourceFreshnessResult
     if not isinstance(result, SourceFreshnessResult):
         raise InternalException(
-            "Got {} instead of a SourceFreshnessResult for a "
-            "non-error result in freshness execution!".format(type(result))
+            'Got {} instead of a SourceFreshnessResult for a '
+            'non-error result in freshness execution!'
+            .format(type(result))
         )
     # if we're here, we must have a non-None freshness threshold
     criteria = result.node.freshness
     if criteria is None:
         raise InternalException(
-            "Somehow evaluated a freshness result for a source "
-            "that has no freshness criteria!"
+            'Somehow evaluated a freshness result for a source '
+            'that has no freshness criteria!'
         )
     return SourceFreshnessOutput(
         unique_id=unique_id,
@@ -328,13 +344,18 @@ def process_freshness_result(result: FreshnessNodeResult) -> FreshnessNodeOutput
         status=result.status,
         criteria=criteria,
         adapter_response=result.adapter_response,
+        timing=result.timing,
+        thread_id=result.thread_id,
+        execution_time=result.execution_time,
     )
 
 
 @dataclass
 class FreshnessMetadata(BaseArtifactMetadata):
     dbt_schema_version: str = field(
-        default_factory=lambda: str(FreshnessExecutionResultArtifact.dbt_schema_version)
+        default_factory=lambda: str(
+            FreshnessExecutionResultArtifact.dbt_schema_version
+        )
     )
 
 
@@ -355,7 +376,7 @@ class FreshnessResult(ExecutionResult):
 
 
 @dataclass
-@schema_version("sources", 1)
+@schema_version('sources', 3)
 class FreshnessExecutionResultArtifact(
     ArtifactMixin,
     VersionedSchema,
@@ -375,9 +396,11 @@ class FreshnessExecutionResultArtifact(
 
 
 Primitive = Union[bool, str, float, None]
+PrimitiveDict = Dict[str, Primitive]
 
 CatalogKey = NamedTuple(
-    "CatalogKey", [("database", Optional[str]), ("schema", str), ("name", str)]
+    'CatalogKey',
+    [('database', Optional[str]), ('schema', str), ('name', str)]
 )
 
 
@@ -446,13 +469,13 @@ class CatalogResults(dbtClassMixin):
 
     def __post_serialize__(self, dct):
         dct = super().__post_serialize__(dct)
-        if "_compile_results" in dct:
-            del dct["_compile_results"]
+        if '_compile_results' in dct:
+            del dct['_compile_results']
         return dct
 
 
 @dataclass
-@schema_version("catalog", 1)
+@schema_version('catalog', 1)
 class CatalogArtifact(CatalogResults, ArtifactMixin):
     metadata: CatalogMetadata
 
@@ -463,8 +486,8 @@ class CatalogArtifact(CatalogResults, ArtifactMixin):
         nodes: Dict[str, CatalogTable],
         sources: Dict[str, CatalogTable],
         compile_results: Optional[Any],
-        errors: Optional[List[str]],
-    ) -> "CatalogArtifact":
+        errors: Optional[List[str]]
+    ) -> 'CatalogArtifact':
         meta = CatalogMetadata(generated_at=generated_at)
         return cls(
             metadata=meta,

core/dbt/contracts/rpc.py

@@ -1,778 +0,0 @@
-import enum
-import os
-import uuid
-from dataclasses import dataclass, field
-from datetime import datetime, timedelta
-from typing import Optional, Union, List, Any, Dict, Type, Sequence
-
-from dbt.dataclass_schema import dbtClassMixin, StrEnum
-
-from dbt.contracts.graph.compiled import CompileResultNode
-from dbt.contracts.graph.manifest import WritableManifest
-from dbt.contracts.results import (
-    RunResult,
-    RunResultsArtifact,
-    TimingInfo,
-    CatalogArtifact,
-    CatalogResults,
-    ExecutionResult,
-    FreshnessExecutionResultArtifact,
-    FreshnessResult,
-    RunOperationResult,
-    RunOperationResultsArtifact,
-    RunExecutionResult,
-)
-from dbt.contracts.util import VersionedSchema, schema_version
-from dbt.exceptions import InternalException
-from dbt.logger import LogMessage
-from dbt.utils import restrict_to
-
-
-TaskTags = Optional[Dict[str, Any]]
-TaskID = uuid.UUID
-
-# Inputs
-
-
-@dataclass
-class RPCParameters(dbtClassMixin):
-    task_tags: TaskTags
-    timeout: Optional[float]
-
-    @classmethod
-    def __pre_deserialize__(cls, data, omit_none=True):
-        data = super().__pre_deserialize__(data)
-        if "timeout" not in data:
-            data["timeout"] = None
-        if "task_tags" not in data:
-            data["task_tags"] = None
-        return data
-
-
-@dataclass
-class RPCExecParameters(RPCParameters):
-    name: str
-    sql: str
-    macros: Optional[str] = None
-
-
-@dataclass
-class RPCCompileParameters(RPCParameters):
-    threads: Optional[int] = None
-    models: Union[None, str, List[str]] = None
-    exclude: Union[None, str, List[str]] = None
-    selector: Optional[str] = None
-    state: Optional[str] = None
-
-
-@dataclass
-class RPCRunParameters(RPCParameters):
-    threads: Optional[int] = None
-    models: Union[None, str, List[str]] = None
-    exclude: Union[None, str, List[str]] = None
-    selector: Optional[str] = None
-    state: Optional[str] = None
-    defer: Optional[bool] = None
-
-
-@dataclass
-class RPCSnapshotParameters(RPCParameters):
-    threads: Optional[int] = None
-    select: Union[None, str, List[str]] = None
-    exclude: Union[None, str, List[str]] = None
-    selector: Optional[str] = None
-    state: Optional[str] = None
-
-
-@dataclass
-class RPCTestParameters(RPCCompileParameters):
-    data: bool = False
-    schema: bool = False
-    state: Optional[str] = None
-    defer: Optional[bool] = None
-
-
-@dataclass
-class RPCSeedParameters(RPCParameters):
-    threads: Optional[int] = None
-    select: Union[None, str, List[str]] = None
-    exclude: Union[None, str, List[str]] = None
-    selector: Optional[str] = None
-    show: bool = False
-    state: Optional[str] = None
-
-
-@dataclass
-class RPCDocsGenerateParameters(RPCParameters):
-    compile: bool = True
-    state: Optional[str] = None
-
-
-@dataclass
-class RPCCliParameters(RPCParameters):
-    cli: str
-
-
-@dataclass
-class RPCDepsParameters(RPCParameters):
-    pass
-
-
-@dataclass
-class KillParameters(RPCParameters):
-    task_id: TaskID
-
-
-@dataclass
-class PollParameters(RPCParameters):
-    request_token: TaskID
-    logs: bool = True
-    logs_start: int = 0
-
-
-@dataclass
-class PSParameters(RPCParameters):
-    active: bool = True
-    completed: bool = False
-
-
-@dataclass
-class StatusParameters(RPCParameters):
-    pass
-
-
-@dataclass
-class GCSettings(dbtClassMixin):
-    # start evicting the longest-ago-ended tasks here
-    maxsize: int
-    # start evicting all tasks before now - auto_reap_age when we have this
-    # many tasks in the table
-    reapsize: int
-    # a positive timedelta indicating how far back we should go
-    auto_reap_age: timedelta
-
-
-@dataclass
-class GCParameters(RPCParameters):
-    """The gc endpoint takes three arguments, any of which may be present:
-
-    - task_ids: An optional list of task ID UUIDs to try to GC
-    - before: If provided, should be a datetime string. All tasks that finished
-        before that datetime will be GCed
-    - settings: If provided, should be a GCSettings object in JSON form. It
-        will be applied to the task manager before GC starts. By default the
-        existing gc settings remain.
-    """
-
-    task_ids: Optional[List[TaskID]] = None
-    before: Optional[datetime] = None
-    settings: Optional[GCSettings] = None
-
-
-@dataclass
-class RPCRunOperationParameters(RPCParameters):
-    macro: str
-    args: Dict[str, Any] = field(default_factory=dict)
-
-
-@dataclass
-class RPCSourceFreshnessParameters(RPCParameters):
-    threads: Optional[int] = None
-    select: Union[None, str, List[str]] = None
-
-
-@dataclass
-class GetManifestParameters(RPCParameters):
-    pass
-
-
-# Outputs
-
-
-@dataclass
-class RemoteResult(VersionedSchema):
-    logs: List[LogMessage]
-
-
-@dataclass
-@schema_version("remote-deps-result", 1)
-class RemoteDepsResult(RemoteResult):
-    generated_at: datetime = field(default_factory=datetime.utcnow)
-
-
-@dataclass
-@schema_version("remote-catalog-result", 1)
-class RemoteCatalogResults(CatalogResults, RemoteResult):
-    generated_at: datetime = field(default_factory=datetime.utcnow)
-
-    def write(self, path: str):
-        artifact = CatalogArtifact.from_results(
-            generated_at=self.generated_at,
-            nodes=self.nodes,
-            sources=self.sources,
-            compile_results=self._compile_results,
-            errors=self.errors,
-        )
-        artifact.write(path)
-
-
-@dataclass
-class RemoteCompileResultMixin(RemoteResult):
-    raw_sql: str
-    compiled_sql: str
-    node: CompileResultNode
-    timing: List[TimingInfo]
-
-
-@dataclass
-@schema_version("remote-compile-result", 1)
-class RemoteCompileResult(RemoteCompileResultMixin):
-    generated_at: datetime = field(default_factory=datetime.utcnow)
-
-    @property
-    def error(self):
-        return None
-
-
-@dataclass
-@schema_version("remote-execution-result", 1)
-class RemoteExecutionResult(ExecutionResult, RemoteResult):
-    results: Sequence[RunResult]
-    args: Dict[str, Any] = field(default_factory=dict)
-    generated_at: datetime = field(default_factory=datetime.utcnow)
-
-    def write(self, path: str):
-        writable = RunResultsArtifact.from_execution_results(
-            generated_at=self.generated_at,
-            results=self.results,
-            elapsed_time=self.elapsed_time,
-            args=self.args,
-        )
-        writable.write(path)
-
-    @classmethod
-    def from_local_result(
-        cls,
-        base: RunExecutionResult,
-        logs: List[LogMessage],
-    ) -> "RemoteExecutionResult":
-        return cls(
-            generated_at=base.generated_at,
-            results=base.results,
-            elapsed_time=base.elapsed_time,
-            args=base.args,
-            logs=logs,
-        )
-
-
-@dataclass
-class ResultTable(dbtClassMixin):
-    column_names: List[str]
-    rows: List[Any]
-
-
-@dataclass
-@schema_version("remote-run-operation-result", 1)
-class RemoteRunOperationResult(RunOperationResult, RemoteResult):
-    generated_at: datetime = field(default_factory=datetime.utcnow)
-
-    @classmethod
-    def from_local_result(
-        cls,
-        base: RunOperationResultsArtifact,
-        logs: List[LogMessage],
-    ) -> "RemoteRunOperationResult":
-        return cls(
-            generated_at=base.metadata.generated_at,
-            results=base.results,
-            elapsed_time=base.elapsed_time,
-            success=base.success,
-            logs=logs,
-        )
-
-    def write(self, path: str):
-        writable = RunOperationResultsArtifact.from_success(
-            success=self.success,
-            generated_at=self.generated_at,
-            elapsed_time=self.elapsed_time,
-        )
-        writable.write(path)
-
-
-@dataclass
-@schema_version("remote-freshness-result", 1)
-class RemoteFreshnessResult(FreshnessResult, RemoteResult):
-    @classmethod
-    def from_local_result(
-        cls,
-        base: FreshnessResult,
-        logs: List[LogMessage],
-    ) -> "RemoteFreshnessResult":
-        return cls(
-            metadata=base.metadata,
-            results=base.results,
-            elapsed_time=base.elapsed_time,
-            logs=logs,
-        )
-
-    def write(self, path: str):
-        writable = FreshnessExecutionResultArtifact.from_result(base=self)
-        writable.write(path)
-
-
-@dataclass
-@schema_version("remote-run-result", 1)
-class RemoteRunResult(RemoteCompileResultMixin):
-    table: ResultTable
-    generated_at: datetime = field(default_factory=datetime.utcnow)
-
-
-RPCResult = Union[
-    RemoteCompileResult,
-    RemoteExecutionResult,
-    RemoteFreshnessResult,
-    RemoteCatalogResults,
-    RemoteDepsResult,
-    RemoteRunOperationResult,
-]
-
-
-# GC types
-
-
-class GCResultState(StrEnum):
-    Deleted = "deleted"  # successful GC
-    Missing = "missing"  # nothing to GC
-    Running = "running"  # can't GC
-
-
-@dataclass
-@schema_version("remote-gc-result", 1)
-class GCResult(RemoteResult):
-    logs: List[LogMessage] = field(default_factory=list)
-    deleted: List[TaskID] = field(default_factory=list)
-    missing: List[TaskID] = field(default_factory=list)
-    running: List[TaskID] = field(default_factory=list)
-
-    def add_result(self, task_id: TaskID, state: GCResultState):
-        if state == GCResultState.Missing:
-            self.missing.append(task_id)
-        elif state == GCResultState.Running:
-            self.running.append(task_id)
-        elif state == GCResultState.Deleted:
-            self.deleted.append(task_id)
-        else:
-            raise InternalException(f"Got invalid state in add_result: {state}")
-
-
-# Task management types
-
-
-class TaskHandlerState(StrEnum):
-    NotStarted = "not started"
-    Initializing = "initializing"
-    Running = "running"
-    Success = "success"
-    Error = "error"
-    Killed = "killed"
-    Failed = "failed"
-
-    def __lt__(self, other) -> bool:
-        """A logical ordering for TaskHandlerState:
-
-        NotStarted < Initializing < Running < (Success, Error, Killed, Failed)
-        """
-        if not isinstance(other, TaskHandlerState):
-            raise TypeError("cannot compare to non-TaskHandlerState")
-        order = (self.NotStarted, self.Initializing, self.Running)
-        smaller = set()
-        for value in order:
-            smaller.add(value)
-            if self == value:
-                return other not in smaller
-
-        return False
-
-    def __le__(self, other) -> bool:
-        # so that ((Success <= Error) is True)
-        return (self < other) or (self == other) or (self.finished and other.finished)
-
-    def __gt__(self, other) -> bool:
-        if not isinstance(other, TaskHandlerState):
-            raise TypeError("cannot compare to non-TaskHandlerState")
-        order = (self.NotStarted, self.Initializing, self.Running)
-        smaller = set()
-        for value in order:
-            smaller.add(value)
-            if self == value:
-                return other in smaller
-        return other in smaller
-
-    def __ge__(self, other) -> bool:
-        # so that ((Success <= Error) is True)
-        return (self > other) or (self == other) or (self.finished and other.finished)
-
-    @property
-    def finished(self) -> bool:
-        return self in (self.Error, self.Success, self.Killed, self.Failed)
-
-
-@dataclass
-class TaskTiming(dbtClassMixin):
-    state: TaskHandlerState
-    start: Optional[datetime]
-    end: Optional[datetime]
-    elapsed: Optional[float]
-
-    # These ought to be defaults but superclass order doesn't
-    # allow that to work
-    @classmethod
-    def __pre_deserialize__(cls, data):
-        data = super().__pre_deserialize__(data)
-        for field_name in ("start", "end", "elapsed"):
-            if field_name not in data:
-                data[field_name] = None
-        return data
-
-
-@dataclass
-class TaskRow(TaskTiming):
-    task_id: TaskID
-    request_source: str
-    method: str
-    request_id: Union[str, int]
-    tags: TaskTags = None
-    timeout: Optional[float] = None
-
-
-@dataclass
-@schema_version("remote-ps-result", 1)
-class PSResult(RemoteResult):
-    rows: List[TaskRow]
-
-
-class KillResultStatus(StrEnum):
-    Missing = "missing"
-    NotStarted = "not_started"
-    Killed = "killed"
-    Finished = "finished"
-
-
-@dataclass
-@schema_version("remote-kill-result", 1)
-class KillResult(RemoteResult):
-    state: KillResultStatus = KillResultStatus.Missing
-    logs: List[LogMessage] = field(default_factory=list)
-
-
-@dataclass
-@schema_version("remote-manifest-result", 1)
-class GetManifestResult(RemoteResult):
-    manifest: Optional[WritableManifest] = None
-
-
-# this is kind of carefuly structured: BlocksManifestTasks is implied by
-# RequiresConfigReloadBefore and RequiresManifestReloadAfter
-class RemoteMethodFlags(enum.Flag):
-    Empty = 0
-    BlocksManifestTasks = 1
-    RequiresConfigReloadBefore = 3
-    RequiresManifestReloadAfter = 5
-    Builtin = 8
-
-
-# Polling types
-
-
-@dataclass
-class PollResult(RemoteResult, TaskTiming):
-    state: TaskHandlerState
-    tags: TaskTags
-    start: Optional[datetime]
-    end: Optional[datetime]
-    elapsed: Optional[float]
-
-    # These ought to be defaults but superclass order doesn't
-    # allow that to work
-    @classmethod
-    def __pre_deserialize__(cls, data):
-        data = super().__pre_deserialize__(data)
-        for field_name in ("start", "end", "elapsed"):
-            if field_name not in data:
-                data[field_name] = None
-        return data
-
-
-@dataclass
-@schema_version("poll-remote-deps-result", 1)
-class PollRemoteEmptyCompleteResult(PollResult, RemoteResult):
-    state: TaskHandlerState = field(
-        metadata=restrict_to(TaskHandlerState.Success, TaskHandlerState.Failed),
-    )
-    generated_at: datetime = field(default_factory=datetime.utcnow)
-
-    @classmethod
-    def from_result(
-        cls: Type["PollRemoteEmptyCompleteResult"],
-        base: RemoteDepsResult,
-        tags: TaskTags,
-        timing: TaskTiming,
-        logs: List[LogMessage],
-    ) -> "PollRemoteEmptyCompleteResult":
-        return cls(
-            logs=logs,
-            tags=tags,
-            state=timing.state,
-            start=timing.start,
-            end=timing.end,
-            elapsed=timing.elapsed,
-            generated_at=base.generated_at,
-        )
-
-
-@dataclass
-@schema_version("poll-remote-killed-result", 1)
-class PollKilledResult(PollResult):
-    state: TaskHandlerState = field(
-        metadata=restrict_to(TaskHandlerState.Killed),
-    )
-
-
-@dataclass
-@schema_version("poll-remote-execution-result", 1)
-class PollExecuteCompleteResult(
-    RemoteExecutionResult,
-    PollResult,
-):
-    state: TaskHandlerState = field(
-        metadata=restrict_to(TaskHandlerState.Success, TaskHandlerState.Failed),
-    )
-
-    @classmethod
-    def from_result(
-        cls: Type["PollExecuteCompleteResult"],
-        base: RemoteExecutionResult,
-        tags: TaskTags,
-        timing: TaskTiming,
-        logs: List[LogMessage],
-    ) -> "PollExecuteCompleteResult":
-        return cls(
-            results=base.results,
-            elapsed_time=base.elapsed_time,
-            logs=logs,
-            tags=tags,
-            state=timing.state,
-            start=timing.start,
-            end=timing.end,
-            elapsed=timing.elapsed,
-            generated_at=base.generated_at,
-        )
-
-
-@dataclass
-@schema_version("poll-remote-compile-result", 1)
-class PollCompileCompleteResult(
-    RemoteCompileResult,
-    PollResult,
-):
-    state: TaskHandlerState = field(
-        metadata=restrict_to(TaskHandlerState.Success, TaskHandlerState.Failed),
-    )
-
-    @classmethod
-    def from_result(
-        cls: Type["PollCompileCompleteResult"],
-        base: RemoteCompileResult,
-        tags: TaskTags,
-        timing: TaskTiming,
-        logs: List[LogMessage],
-    ) -> "PollCompileCompleteResult":
-        return cls(
-            raw_sql=base.raw_sql,
-            compiled_sql=base.compiled_sql,
-            node=base.node,
-            timing=base.timing,
-            logs=logs,
-            tags=tags,
-            state=timing.state,
-            start=timing.start,
-            end=timing.end,
-            elapsed=timing.elapsed,
-            generated_at=base.generated_at,
-        )
-
-
-@dataclass
-@schema_version("poll-remote-run-result", 1)
-class PollRunCompleteResult(
-    RemoteRunResult,
-    PollResult,
-):
-    state: TaskHandlerState = field(
-        metadata=restrict_to(TaskHandlerState.Success, TaskHandlerState.Failed),
-    )
-
-    @classmethod
-    def from_result(
-        cls: Type["PollRunCompleteResult"],
-        base: RemoteRunResult,
-        tags: TaskTags,
-        timing: TaskTiming,
-        logs: List[LogMessage],
-    ) -> "PollRunCompleteResult":
-        return cls(
-            raw_sql=base.raw_sql,
-            compiled_sql=base.compiled_sql,
-            node=base.node,
-            timing=base.timing,
-            logs=logs,
-            table=base.table,
-            tags=tags,
-            state=timing.state,
-            start=timing.start,
-            end=timing.end,
-            elapsed=timing.elapsed,
-            generated_at=base.generated_at,
-        )
-
-
-@dataclass
-@schema_version("poll-remote-run-operation-result", 1)
-class PollRunOperationCompleteResult(
-    RemoteRunOperationResult,
-    PollResult,
-):
-    state: TaskHandlerState = field(
-        metadata=restrict_to(TaskHandlerState.Success, TaskHandlerState.Failed),
-    )
-
-    @classmethod
-    def from_result(
-        cls: Type["PollRunOperationCompleteResult"],
-        base: RemoteRunOperationResult,
-        tags: TaskTags,
-        timing: TaskTiming,
-        logs: List[LogMessage],
-    ) -> "PollRunOperationCompleteResult":
-        return cls(
-            success=base.success,
-            results=base.results,
-            generated_at=base.generated_at,
-            elapsed_time=base.elapsed_time,
-            logs=logs,
-            tags=tags,
-            state=timing.state,
-            start=timing.start,
-            end=timing.end,
-            elapsed=timing.elapsed,
-        )
-
-
-@dataclass
-@schema_version("poll-remote-catalog-result", 1)
-class PollCatalogCompleteResult(RemoteCatalogResults, PollResult):
-    state: TaskHandlerState = field(
-        metadata=restrict_to(TaskHandlerState.Success, TaskHandlerState.Failed),
-    )
-
-    @classmethod
-    def from_result(
-        cls: Type["PollCatalogCompleteResult"],
-        base: RemoteCatalogResults,
-        tags: TaskTags,
-        timing: TaskTiming,
-        logs: List[LogMessage],
-    ) -> "PollCatalogCompleteResult":
-        return cls(
-            nodes=base.nodes,
-            sources=base.sources,
-            generated_at=base.generated_at,
-            errors=base.errors,
-            _compile_results=base._compile_results,
-            logs=logs,
-            tags=tags,
-            state=timing.state,
-            start=timing.start,
-            end=timing.end,
-            elapsed=timing.elapsed,
-        )
-
-
-@dataclass
-@schema_version("poll-remote-in-progress-result", 1)
-class PollInProgressResult(PollResult):
-    pass
-
-
-@dataclass
-@schema_version("poll-remote-get-manifest-result", 1)
-class PollGetManifestResult(GetManifestResult, PollResult):
-    state: TaskHandlerState = field(
-        metadata=restrict_to(TaskHandlerState.Success, TaskHandlerState.Failed),
-    )
-
-    @classmethod
-    def from_result(
-        cls: Type["PollGetManifestResult"],
-        base: GetManifestResult,
-        tags: TaskTags,
-        timing: TaskTiming,
-        logs: List[LogMessage],
-    ) -> "PollGetManifestResult":
-        return cls(
-            manifest=base.manifest,
-            logs=logs,
-            tags=tags,
-            state=timing.state,
-            start=timing.start,
-            end=timing.end,
-            elapsed=timing.elapsed,
-        )
-
-
-@dataclass
-@schema_version("poll-remote-freshness-result", 1)
-class PollFreshnessResult(RemoteFreshnessResult, PollResult):
-    state: TaskHandlerState = field(
-        metadata=restrict_to(TaskHandlerState.Success, TaskHandlerState.Failed),
-    )
-
-    @classmethod
-    def from_result(
-        cls: Type["PollFreshnessResult"],
-        base: RemoteFreshnessResult,
-        tags: TaskTags,
-        timing: TaskTiming,
-        logs: List[LogMessage],
-    ) -> "PollFreshnessResult":
-        return cls(
-            logs=logs,
-            tags=tags,
-            state=timing.state,
-            start=timing.start,
-            end=timing.end,
-            elapsed=timing.elapsed,
-            metadata=base.metadata,
-            results=base.results,
-            elapsed_time=base.elapsed_time,
-        )
-
-
-# Manifest parsing types
-
-
-class ManifestStatus(StrEnum):
-    Init = "init"
-    Compiling = "compiling"
-    Ready = "ready"
-    Error = "error"
-
-
-@dataclass
-@schema_version("remote-status-result", 1)
-class LastParse(RemoteResult):
-    state: ManifestStatus = ManifestStatus.Init
-    logs: List[LogMessage] = field(default_factory=list)
-    error: Optional[Dict[str, Any]] = None
-    timestamp: datetime = field(default_factory=datetime.utcnow)
-    pid: int = field(default_factory=os.getpid)