name: GitHub Actions CI
on:
  push:
    branches: master
  pull_request: []
jobs:
  tests:
    if: github.repository == 'Homebrew/brew'
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-latest, macOS-latest]
    steps:
    - name: Set up Git repository
      uses: actions/checkout@v1

    - name: Set up Homebrew PATH
      run: |
        if [ "$RUNNER_OS" = "macOS" ]; then
          echo "::add-path::/usr/local/bin:/usr/bin:/bin"
        else
          echo "::add-path::/home/linuxbrew/.linuxbrew/bin:/usr/bin:/bin"
        fi
      
    - name: Set up Homebrew
      run: |
        if [ "$RUNNER_OS" = "Linux" ]; then
          HOMEBREW_REPOSITORY=/home/linuxbrew/.linuxbrew/Homebrew
          sudo mkdir -p /home/linuxbrew/.linuxbrew
          cd ..
          sudo mv "brew" "$HOMEBREW_REPOSITORY"
          sudo ln -s "$HOMEBREW_REPOSITORY" "brew"
          cd /home/linuxbrew/.linuxbrew
          sudo mkdir -p bin etc include lib opt sbin share var/homebrew/linked Cellar
          sudo ln -s ../Homebrew/bin/brew /home/linuxbrew/.linuxbrew/bin/
          sudo chown -R "$USER" /home/linuxbrew

          # Install taps needed for 'brew tests'
          export HOMEBREW_NO_AUTO_UPDATE=1
          brew tap homebrew/bundle
        else
          HOMEBREW_REPOSITORY="$(brew --repo)"
          mv "$HOMEBREW_REPOSITORY/Library/Taps" "$PWD/Library"
          sudo rm -rf "$HOMEBREW_REPOSITORY"
          sudo ln -s "$PWD" "$HOMEBREW_REPOSITORY"
          brew update-reset Library/Taps/homebrew/homebrew-core

          # Install taps needed for 'brew tests'
          export HOMEBREW_NO_AUTO_UPDATE=1
          brew tap homebrew/cask
          brew tap homebrew/bundle
          brew tap homebrew/services
        fi

    - name: Run brew config
      run: |
        brew config

    - name: Run brew doctor
      run: |
        if [ "$RUNNER_OS" = "Linux" ]; then
          # Cleanup some Linux `brew doctor` failures
          sudo rm -rf /usr/local/include/node/
        else
          # Allow Xcode to be outdated
          export HOMEBREW_GITHUB_ACTIONS=1
        fi
        brew doctor

    - name: Install Bundler RubyGems
      run: |
        brew install-bundler-gems

        # Check for uncommitted gems
        git -C $(brew --repo) diff --stat --exit-code Library/Homebrew/vendor/bundle/ruby

        if [ "$RUNNER_OS" = "Linux" ]; then
          # Fix permissions for 'brew tests'
          sudo chmod -R g-w,o-w /home/linuxbrew /home/runner /opt
        fi

    - name: Run brew tests
      run: |
        # brew tests doesn't like world writable directories
        umask 022

        # set variables for coverage reporting
        export HOMEBREW_CI_BUILD_NUMBER="$GITHUB_REF"
        export HOMEBREW_CI_BRANCH="$HEAD_GITHUB_REF"
        export HOMEBREW_GITHUB_REPOSITORY="$GITHUB_REPOSITORY"

        # don't bother running all tests on both platforms (for speed)
        if [ "$RUNNER_OS" = "Linux" ]; then
          brew tests --no-compat --online
          brew tests --generic --online
          brew tests --online
        else
          brew tests --online --coverage
        fi
      env:
        HOMEBREW_GITHUB_API_TOKEN: ${{ secrets.GITHUB_TOKEN }}

        # set variables for coverage reporting
        HOMEBREW_GITHUB_ACTIONS: 1
        HOMEBREW_CI_NAME: github-actions
        HOMEBREW_COVERALLS_REPO_TOKEN: 3F6U6ZqctoNJwKyREremsqMgpU3qYgxFk

        # These cannot be queried at the macOS level on GitHub Actions.
        HOMEBREW_LANGUAGES: en-GB

    - name: Run brew style
      run: |
        brew style --display-cop-names

    - name: Run brew man
      run: |
        brew man --fail-if-changed

    - name: Run brew update-tests
      run: |
        git config --global user.name "BrewTestBot"
        git config --global user.email "homebrew-test-bot@lists.sfconservancy.org"
        brew update-test
        brew update-test --to-tag
        brew update-test --commit=HEAD
      if: github.event_name == 'pull_request'

    - name: Run brew readall
      run: |
        brew readall --aliases

    - name: Run vale for docs linting
      run: |
        brew install vale
        vale $(brew --repo)/docs/

    - name: Build Docker image
      run: |
        docker pull homebrew/brew
        docker-compose -f Dockerfile.yml build sut
      if: matrix.os == 'ubuntu-latest'

    - name: Run brew test-bot
      run: |
        if [ "$RUNNER_OS" = "Linux" ]; then
          docker-compose -f Dockerfile.yml run --rm -v $GITHUB_WORKSPACE:/tmp/test-bot sut
        else
          brew test-bot
        fi