name: Build only (for PRs)

on:
  pull_request: 

jobs:
  build-only:
    runs-on: ubuntu-latest  # Use a runner with Docker support
    container: ghcr.io/catthehacker/ubuntu:act-latest  # Image with Docker pre-installed
    outputs:
      sha_short: ${{ steps.vars.outputs.sha_short }}
    steps:
      # Checkout the repository code
      - name: Checkout repository
        uses: actions/checkout@v6

      - name: Set outputs
        id: vars
        run: |
          echo "sha_short=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT

      # Set up Docker Buildx for building the image
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
        with:
          driver: remote
          endpoint: 'tcp://buildkitd:1234'

      # Build the Docker image
      - name: Build Docker Image
        uses: docker/build-push-action@v7
        with:
          context: .                    # Build context (current directory)
          file: ./Dockerfile            # Path to Dockerfile
          platforms: "linux/amd64,linux/arm64"