main.yml

# **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]

    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
        with: 
          python-version: '3.8'

      - name: Install python dependencies
        run: |
          sudo apt-get install libsasl2-dev
          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] # TODO: support unit testing for python 3.9 (https://github.com/dbt-labs/dbt/issues/3689)

    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: |
          sudo apt-get install libsasl2-dev
          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

    outputs:
      is_alpha: ${{ steps.check-is-alpha.outputs.is_alpha }}

    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
          
      - name: Check if this is an alpha version
        id: check-is-alpha
        run: |
          export is_alpha=0
          if [[ "$(ls -lh dist/)" == *"a1"* ]]; then export is_alpha=1; fi
          echo "::set-output name=is_alpha::$is_alpha"

      - uses: actions/upload-artifact@v2
        with:
          name: dist
          path: dist/

  test-build:
    name: verify packages / python ${{ matrix.python-version }} / ${{ matrix.os }}

    if: needs.build.outputs.is_alpha == 0

    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
        run: |
          find ./dist/*.gz -maxdepth 1 -type f | xargs pip install --force-reinstall --find-links=dist/
      - name: Check source distributions
        run: |
          dbt --version