name: Test

on:
  pull_request:
    branches:
    - main
  push:
    branches:
    - main

jobs:
  python-django:
    runs-on: ubuntu-latest
    strategy:
      max-parallel: 5
      matrix:
        python-version:
        - '3.6'
        - '3.7'
        - '3.8'
        - '3.9'
        - '3.10'
        django-version:
        - '2.2'
        - '3.2'
        - '4.0'
        exclude:
        - { django-version: '2.2', python-version: '3.10' }
        - { django-version: '4.0', python-version: '3.6' }
        - { django-version: '4.0', python-version: '3.7' }

    steps:
    - uses: actions/checkout@v2

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

    - name: Get pip cache dir
      id: pip-cache
      run: |
        echo "::set-output name=dir::$(pip cache dir)"

    - name: Cache
      uses: actions/cache@v2
      with:
        path: ${{ steps.pip-cache.outputs.dir }}
        key:
          ${{ matrix.python-version }}-v1-${{ hashFiles('**/setup.py') }}
        restore-keys: |
          ${{ matrix.python-version }}-v1-

    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        python -m pip install --upgrade tox tox-gh-actions

    - name: Tox tests (Python ${{ matrix.python-version }}, Django ${{ matrix.django-version }})
      run: tox
      env:
        DJANGO: ${{ matrix.django-version }}

    - name: Upload coverage
      uses: codecov/codecov-action@v1
      with:
        name: Python ${{ matrix.python-version }}