name: build

on:
  - push
  - pull_request

jobs:
  build:
    services:
      postgresql:
        image: postgres:9.6
        ports:
          - 5432:5432
        env:
          POSTGRES_PASSWORD: postgres
    strategy:
      fail-fast: true

      matrix:
        ruby_version: ['3.1', '3.0', '2.7', '2.6', '2.5', 'jruby']
        rails_version: [edge, '7.0', '6.1', '6.0', '5.2']
        db: ['sqlite3', 'postgresql', 'mysql']

        exclude:
          - ruby_version: '3.1'
            rails_version: '6.0'
          - ruby_version: '3.1'
            rails_version: '5.2'
          - ruby_version: '3.0'
            rails_version: '5.2'
          - ruby_version: '2.7'
            rails_version: '5.2'
          - ruby_version: '2.6'
            rails_version: 'edge'
          - ruby_version: '2.6'
            rails_version: '7.0'
          - ruby_version: '2.5'
            rails_version: 'edge'
          - ruby_version: '2.5'
            rails_version: '7.0'
          - ruby_version: 'jruby'
            rails_version: 'edge'

        include:
          - ruby_version: 'ruby-head'
            rails_version: 'edge'
            db: sqlite3
          - ruby_version: 'ruby-head'
            rails_version: 'edge'
            db: postgresql
          - ruby_version: 'ruby-head'
            rails_version: 'edge'
            db: mysql

          - ruby_version: '2.6'
            rails_version: '5.1'
            db: sqlite3
          - ruby_version: '2.6'
            rails_version: '5.0'
            db: sqlite3

          - ruby_version: '2.5'
            rails_version: '5.1'
            db: sqlite3
          - ruby_version: '2.5'
            rails_version: '5.0'
            db: sqlite3

          - ruby_version: '2.4'
            rails_version: '5.2'
            db: sqlite3

          - ruby_version: '2.3'
            rails_version: '5.2'
            db: sqlite3
          - ruby_version: '2.3'
            rails_version: '4.2'
            db: sqlite3
          - ruby_version: '2.3'
            rails_version: '4.1'
            db: sqlite3

          - ruby_version: '2.2'
            rails_version: '5.2'
            db: sqlite3

          - ruby_version: '2.1'
            rails_version: '4.2'
            db: sqlite3

    env:
      RAILS_VERSION: ${{ matrix.rails_version }}
      DB: ${{ matrix.db }}
      POSTGRES_PASSWORD: postgres  # for passing the password to the Rails process
      MYSQL_PASSWORD: root  # for passing the password to the Rails process

    runs-on: ubuntu-18.04

    steps:
      - uses: actions/checkout@v2
      - name: Install libmysqld-dev
        run: sudo apt-get install libmysqld-dev
      - name: Start local MySQL
        run: sudo /etc/init.d/mysql start
      - name: Set up Ruby
        uses: ruby/setup-ruby@v1
        with:
          ruby-version: ${{ matrix.ruby_version }}
          bundler-cache: true
        continue-on-error: ${{ (matrix.ruby_version == 'ruby-head') || (matrix.ruby_version == 'jruby') || (matrix.rails_version == 'edge') }}
      - run: bundle exec rake test
        continue-on-error: ${{ (matrix.ruby_version == 'ruby-head') || (matrix.ruby_version == 'jruby') || (matrix.rails_version == 'edge') }}