name: Check backward compatibility

on: pull_request
jobs:
  bcc:
    name: Check backward compatibility
    runs-on: ubuntu-latest
    steps:
      - name: Set up PHP
        uses: shivammathur/setup-php@v2
        with:
          php-version: '8.1'
          tools: composer:v2
          coverage: none

      - uses: actions/checkout@v2
        with:
          fetch-depth: 0

      - name: Get Composer Cache Directories
        id: composer-cache
        run: |
          echo "::set-output name=files_cache::$(composer config cache-files-dir)"
          echo "::set-output name=vcs_cache::$(composer config cache-vcs-dir)"

      - name: Cache composer cache
        uses: actions/cache@v2
        with:
          path: |
            ${{ steps.composer-cache.outputs.files_cache }}
            ${{ steps.composer-cache.outputs.vcs_cache }}
          key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
          restore-keys: |
            ${{ runner.os }}-composer-

      - name: Run composer install
        run: | 
          composer install -o
          composer bin bcc install
        env:
          COMPOSER_ROOT_VERSION: dev-master

      - name: Run BCC
        run: vendor/bin/roave-backward-compatibility-check --from="origin/$GITHUB_BASE_REF" --format=github-actions
        env:
          COMPOSER_ROOT_VERSION: dev-master