lint.yml

name: Lint Dockerfile
on:
  workflow_dispatch:
  pull_request:
  push:
    paths:
      - "Dockerfile.template"

jobs:
  lint:
    name: 'Lint Dockerfile (PHP: ${{ matrix.php-version }})'
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        php-version:
          - '8.0'
          - '8.1'
          - '8.2'
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Lint Dockerfile
        uses: hadolint/hadolint-action@master
        with:
          dockerfile: ./${{ matrix.php-version }}/Dockerfile

      - name: Update Pull Request
        uses: actions/github-script@v6
        if: github.event_name == 'pull_request'
        with:
          script: |
            const output = `
            #### Hadolint: \`${{ steps.hadolint.outcome }}\`
            \`\`\`
            ${process.env.HADOLINT_RESULTS}
            \`\`\`
            `;

            github.rest.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: output
            })