.github/workflows/tests.yaml

name: Tests

on:
  push:
    branches: [ master ]
    tags:
      - '[0-9]+.[0-9]+.[0-9]+*'
  pull_request:
    branches: [ master ]

jobs:

  linters:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v2
    - uses: actions/setup-python@v2
      with:
        python-version: 3.8

    - name: Install pre-commit
      run: |
        pip install pre-commit

    - name: run linters
      # pre-commit also runs in pre-commit.ci, but let's have it here too
      # to block `pypi-publish` job from triggering if pre-commit fails
      run: |
        pre-commit run -a

  tests:
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        python-version: [pypy-3.6, 3.6, 3.7, pypy-3.7, 3.8, 3.9, 3.10-dev]
        os: [ubuntu-latest, macos-latest, windows-latest]
    continue-on-error: ${{ matrix.python-version == '3.10-dev' }}

    steps:
    - uses: actions/checkout@v2

    - name: Set up Python ${{ matrix.python-version }}
      uses: actions/setup-python@v2
      with:
        python-version: ${{ matrix.python-version }}

    - name: Install test deps
      run: |
        pip install -r tests/requirements.txt

    - name: Test with pytest
      run: |
        pytest --cov --cov-fail-under=100

    - name: Report coverage
      if: matrix.os == 'ubuntu-latest' && matrix.python-version == '3.6'
      uses: codecov/codecov-action@v1

  test-built-package:
    runs-on: ubuntu-latest
    # Allow this to fail. A failure is possible even if the package is working,
    # because test dependencies may rely on a Tomli version incompatible with
    # the current state.
    continue-on-error: true

    steps:
    - uses: actions/checkout@v2

    - uses: actions/setup-python@v2
      with:
        python-version: 3.7

    - name: Install (deps and package)
      run: |
        pip install . -r tests/requirements.txt

    - name: Test with pytest
      run: |
        pytest --import-mode=append

  allgood:
    runs-on: ubuntu-latest
    needs:
    - tests
    - linters
    steps:
    - run: echo "Great success!"

  pypi-publish:
    # Only publish if all other jobs succeed
    needs:
    - allgood
    if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags')
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
    - uses: actions/setup-python@v2
      with:
        python-version: 3.7
    - name: Install Flit
      run: |
        pip install "flit==3.2.0"
    - name: Build and publish
      run: |
        flit publish
      env:
        FLIT_USERNAME: __token__
        FLIT_PASSWORD: ${{ secrets.PYPI_TOKEN }}