main.yml

name: CI

on:
  push:
    branches:
    - main
  pull_request:

concurrency:
  group: ${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

jobs:
  tests:
    name: Python ${{ matrix.python-version }}
    runs-on: ubuntu-22.04

    strategy:
      matrix:
        python-version:
        - 3.8
        - 3.9
        - '3.10'
        - '3.11'
        - '3.12'

    steps:
    - uses: actions/checkout@v4

    - uses: actions/setup-python@v5
      with:
        python-version: ${{ matrix.python-version }}
        allow-prereleases: true
        cache: pip
        cache-dependency-path: 'requirements/*.txt'

    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip setuptools wheel
        python -m pip install --upgrade 'tox>=4.0.0rc3'

    - name: Run tox targets for ${{ matrix.python-version }}
      run: tox run -f py$(echo ${{ matrix.python-version }} | tr -d .)

    - name: Upload coverage data
      uses: actions/upload-artifact@v4
      with:
        name: coverage-data-${{ matrix.python-version }}
        path: '${{ github.workspace }}/.coverage.*'

  coverage:
    name: Coverage
    runs-on: ubuntu-22.04
    needs: tests
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-python@v5
        with:
          python-version: '3.12'

      - name: Install dependencies
        run: python -m pip install --upgrade coverage[toml]

      - name: Download data
        uses: actions/download-artifact@v4
        with:
          path: ${{ github.workspace }}
          pattern: coverage-data-*
          merge-multiple: true

      - name: Combine coverage and fail if it's <100%
        run: |
          python -m coverage combine
          python -m coverage html --skip-covered --skip-empty
          python -m coverage report --fail-under=100
          echo "## Coverage summary" >> $GITHUB_STEP_SUMMARY
          python -m coverage report --format=markdown >> $GITHUB_STEP_SUMMARY

      - name: Upload HTML report
        if: ${{ failure() }}
        uses: actions/upload-artifact@v4
        with:
          name: html-report
          path: htmlcov