name: Django CI

on:
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]

jobs:
  build:
    runs-on: ubuntu-latest
    services:
      mysql:
        image: mysql:8
        env:
          MYSQL_ROOT_PASSWORD: mysql
          MYSQL_DATABASE: test_project
        ports:
        - 3306:3306
      postgres:
        image: postgres:13
        env:
          POSTGRES_USER: postgres
          POSTGRES_PASSWORD: postgres
          POSTGRES_DB: test_project
        ports:
        - 5432:5432
        # needed because the postgres container does not provide a healthcheck
        options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
    strategy:
      max-parallel: 4
      matrix:
        python-version: [3.6, 3.7, 3.8, 3.9]
        django-version: [1.11, 2.0, 2.1, 2.2, 3.0, 3.1, 3.2]
        exclude:
        # Python 2.7 is compatible with Django 1.11
        - python-version: "2.7"
          django-version: "2.0"
        - python-version: "2.7"
          django-version: "2.1"
        - python-version: "2.7"
          django-version: "2.2"
        - python-version: "2.7"
          django-version: "3.0"
        - python-version: "2.7"
          django-version: "3.1"
        - python-version: "2.7"
          django-version: "3.2"
        # Python 3.8 is compatible with Django 2.2+
        - python-version: "3.8"
          django-version: "1.11"
        - python-version: "3.8"
          django-version: "2.0"
        - python-version: "3.8"
          django-version: "2.1"
        # Python 3.9 is compatible with Django 3.1+
        - python-version: "3.9"
          django-version: "1.11"
        - python-version: "3.9"
          django-version: "2.0"
        - python-version: "3.9"
          django-version: "2.1"
        - python-version: "3.9"
          django-version: "2.2"
        - python-version: "3.9"
          django-version: "3.0"
    steps:
    - uses: actions/checkout@v2
    - name: Set up Python ${{ matrix.python-version }}
      uses: actions/setup-python@v2
      with:
        python-version: ${{ matrix.python-version }}
    - name: psycopg2 prerequisites
      run: sudo apt-get install libpq-dev
    - name: Install Dependencies
      run: |
        python -m pip install --upgrade pip
        pip install flake8 coverage "Django~=${{ matrix.django-version }}.0" "psycopg2==2.8.6" mysqlclient -e .
    - name: Run Flake8
      run: |
        flake8
    - name: Run Tests
      run: |
        coverage run -a tests/runtests.py
    - name: Run Tests psql
      run: |
        coverage run -a tests/runtests.py -d psql
      env: 
        DB_USER: postgres
        DB_PASSWORD: postgres
    - name: Run Tests mysql
      run: |
        coverage run -a tests/runtests.py -d mysql
      env: 
        DB_USER: root
        DB_PASSWORD: mysql