build.yml

name: Build
on: [push, pull_request]
jobs:
  build:
    name: >-
      ${{ matrix.os }} ruby ${{ matrix.ruby }} ${{ matrix.db }}
    # Run all the tests on the new environment as much as possible.
    # https://docs.github.com/en/free-pro-team@latest/actions/reference/specifications-for-github-hosted-runners
    runs-on: ${{ matrix.os }}
    continue-on-error: ${{ matrix.allow-failure || false }}
    strategy:
      matrix:
        os:
          # Use ubuntu-18.04 instead of ubuntu-20.04 temporarily, due to a failing test on mysql 8.0.
          # https://github.com/brianmario/mysql2/issues/1165
          # - ubuntu-20.04 # focal
          - ubuntu-18.04 # bionic
          # - ubuntu-16.04 # xenial
        ruby:
          - '3.1'
          - '3.0'
          - '2.7'
          - '2.6'
          - '2.5'
          - '2.4'
          - '2.3'
          - '2.2'
          - '2.1'
        db: ['']
        include:
          # Allow failure due to Mysql2::Error: Unknown system variable 'session_track_system_variables'.
          - {os: ubuntu-16.04, ruby: '2.4', db: mariadb10.0, allow-failure: true}
          # Comment out due to ci/setup.sh stucking.
          # - {os: ubuntu-18.04, ruby: 2.4, db: mariadb10.1}
          # Allow failure due to the issue #965, #1165.
          - {os: ubuntu-20.04, ruby: '2.4', db: mariadb10.3, allow-failure: true}
          - {os: ubuntu-18.04, ruby: '2.4', db: mysql57}
          # Allow failure due to the issue #1165.
          - {os: ubuntu-20.04, ruby: '2.4', db: mysql80, allow-failure: true}
          - {os: ubuntu-18.04, ruby: 'head', db: '', allow-failure: true}
          # db: A DB's brew package name in macOS case.
          #     Set a name "db: 'name@X.Y'" when using an old version.
          # MariaDB lastet version
          # Allow failure due to the following test failures that rarely happens.
          # https://github.com/brianmario/mysql2/issues/1194
          - {os: macos-latest, ruby: '2.4', db: mariadb, allow-failure: true}
          # MySQL latest version
          # Allow failure due to the issue #1165.
          - {os: macos-latest, ruby: '2.4', db: mysql, allow-failure: true}
      # On the fail-fast: true, it cancels all in-progress jobs
      # if any matrix job fails unlike Travis fast_finish.
      fail-fast: false
    steps:
      - uses: actions/checkout@v2
      # https://github.com/ruby/setup-ruby
      - uses: ruby/setup-ruby@v1
        with:
          ruby-version: ${{ matrix.ruby }}
      - name: Install openssl
        if: matrix.os == 'macos-latest'
        run: |
            brew update
            brew install openssl
      - run: ruby -v
      - run: bundle install --without development
      - if: matrix.db != ''
        run: echo 'DB=${{ matrix.db }}' >> $GITHUB_ENV
      - run: sudo echo "127.0.0.1 mysql2gem.example.com" | sudo tee -a /etc/hosts
      - run: bash ci/setup.sh
      - run: bundle exec rake spec