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path: root/.github/workflows/lint-test.yaml
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name: Lint & Test

on:
  push:
    branches:
      - master
  pull_request:


jobs:
  lint-test:
    runs-on: ubuntu-latest
    env:
      # Configure pip to cache dependencies and do a user install
      PIP_NO_CACHE_DIR: false
      PIP_USER: 1

      # Hide the graphical elements from pipenv's output
      PIPENV_HIDE_EMOJIS: 1
      PIPENV_NOSPIN: 1

      # Make sure pipenv does not try reuse an environment it's running in
      PIPENV_IGNORE_VIRTUALENVS: 1

      # Specify explicit paths for python dependencies and the pre-commit
      # environment so we know which directories to cache
      PYTHONUSERBASE: ${{ github.workspace }}/.cache/py-user-base
      PRE_COMMIT_HOME: ${{ github.workspace }}/.cache/pre-commit-cache

    steps:
      - name: Add custom PYTHONUSERBASE to PATH
        run: echo '${{ env.PYTHONUSERBASE }}/bin/' >> $GITHUB_PATH

      - name: Checkout repository
        uses: actions/checkout@v2

      - name: Setup python
        id: python
        uses: actions/setup-python@v2
        with:
          python-version: '3.8'

      # This step caches our Python dependencies. To make sure we
      # only restore a cache when the dependencies, the python version,
      # the runner operating system, and the dependency location haven't
      # changed, we create a cache key that is a composite of those states.
      #
      # Only when the context is exactly the same, we will restore the cache.
      - name: Python Dependency Caching
        uses: actions/cache@v2
        id: python_cache
        with:
          path: ${{ env.PYTHONUSERBASE }}
          key: "python-0-${{ runner.os }}-${{ env.PYTHONUSERBASE }}-\
          ${{ steps.python.outputs.python-version }}-\
          ${{ hashFiles('./Pipfile', './Pipfile.lock') }}"

      # Install our dependencies if we did not restore a dependency cache
      - name: Install dependencies using pipenv
        if: steps.python_cache.outputs.cache-hit != 'true'
        run: |
          pip install pipenv
          pipenv install --dev --deploy --system

      # This step caches our pre-commit environment. To make sure we
      # do create a new environment when our pre-commit setup changes,
      # we create a cache key based on relevant factors.
      - name: Pre-commit Environment Caching
        uses: actions/cache@v2
        with:
          path: ${{ env.PRE_COMMIT_HOME }}
          key: "precommit-0-${{ runner.os }}-${{ env.PRE_COMMIT_HOME }}-\
          ${{ steps.python.outputs.python-version }}-\
          ${{ hashFiles('./.pre-commit-config.yaml') }}"

      # We will not run `flake8` here, as we will use a separate flake8
      # action. As pre-commit does not support user installs, we set
      # PIP_USER=0 to not do a user install.
      - name: Run pre-commit hooks
        run: export PIP_USER=0; SKIP=flake8 pre-commit run --all-files

      # Run flake8 and have it format the linting errors in the format of
      # the GitHub Workflow command to register error annotations. This
      # means that our flake8 output is automatically added as an error
      # annotation to both the run result and in the "Files" tab of a
      # pull request.
      #
      # Format used:
      # ::error file={filename},line={line},col={col}::{message}
      - name: Run flake8
        run: "flake8 \
        --format='::error file=%(path)s,line=%(row)d,col=%(col)d::\
        [flake8] %(code)s: %(text)s'"

      - name: Run database using docker-compose
        run: docker-compose run -d -p 7777:5432 --name pydis_web postgres

      - name: Migrations and run tests with coverage.py
        run: |
          python manage.py makemigrations --check
          python manage.py migrate
          coverage run manage.py test --no-input
          coverage report -m
        env:
          CI: True
          DATABASE_URL: postgres://pysite:pysite@localhost:7777/pysite
          METRICITY_DB_URL: postgres://pysite:pysite@localhost:7777/metricity

      # This step will publish the coverage reports coveralls.io and
      # print a "job" link in the output of the GitHub Action
      - name: Publish coverage report to coveralls.io
        env:
            GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: coveralls

      - name: Tear down docker-compose containers
        run: docker-compose stop
        if: ${{ always() }}