ci.yml

name: CI

# Controls when the action will run. 
on:
  # Triggers the workflow on push or pull request events but only for the master branch
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]

  # Allows you to run this workflow manually from the Actions tab
  workflow_dispatch:

# A workflow run is made up of one or more jobs that can run sequentially or in parallel
jobs:
  build:
    #runs-on: ubuntu-latest
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        python: ["3.7", "3.8", "3.9", "3.10"]
        os: [windows-latest, ubuntu-latest, macos-latest]
        optional: [optional, no_optional]

    steps:
      - uses: actions/checkout@v2
      - name: Setup Python
        uses: actions/setup-python@v2
        with:
          python-version: ${{ matrix.python }}
      - name: Install Tox and any other packages
        run: pip install tox
      - name: Run Tox
        env:
          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
        # Run tox using the version of Python in `PATH`
        run: tox -e py-${{ matrix.optional }}