build_pull_request.yml

name: Check the Docker image builds for a PR

on:
  workflow_dispatch:
  pull_request:

jobs:
  lint_dockerfile:
    name: Lint Dockerfile
    runs-on: ubuntu-latest
    steps:
      -
        name: Checkout github repository
        uses: actions/checkout@v6
      -
        name: Lint Dockerfile with hadolint
        uses: hadolint/hadolint-action@v3.3.0
        with:
          dockerfile: Dockerfile

  lint_shell_scripts:
    name: Lint shell scripts
    runs-on: ubuntu-latest
    steps:
      -
        name: Checkout github repository
        uses: actions/checkout@v6
      -
        name: Install shell lint tools
        run: |
          sudo apt-get update
          sudo apt-get install -y shellcheck shfmt
      -
        name: Run shellcheck
        run: |
          set -euo pipefail
          mapfile -t scripts < <(git ls-files '*.sh')
          shellcheck --severity style "${scripts[@]}"
      -
        name: Run shfmt
        run: |
          set -euo pipefail
          mapfile -t scripts < <(git ls-files '*.sh')
          shfmt -d -i 2 -ci "${scripts[@]}"

  check_build:
    runs-on: ubuntu-latest
    env:
      APP_GH_REF: develop
      APP_GH_ADD_SHA: "true"
    services:
      mysql:
        image: mysql:8.0
        env:
          MYSQL_ROOT_PASSWORD: root
          MYSQL_DATABASE: librebooking
          MYSQL_USER: librebooking
          MYSQL_PASSWORD: librebooking
        ports:
          - 3306:3306
        options: >-
          --health-cmd="mysqladmin ping -h 127.0.0.1 -proot"
          --health-interval=10s
          --health-timeout=5s
          --health-retries=5
    steps:
      -
        name: Checkout github repository
        uses: actions/checkout@v6
      -
        name: Setup Docker buildx
        uses: docker/setup-buildx-action@v4
      -
        name: Build Docker image
        uses: docker/build-push-action@v7
        with:
          context: .
          platforms: linux/amd64
          build-args: |
            VERSION_PHP=8.4
            VERSION_COMPOSER=lts
            APP_GH_REF=${{ env.APP_GH_REF }}
            APP_GH_ADD_SHA=${{ env.APP_GH_ADD_SHA }}
          tags: librebooking-pr:${{ github.sha }}
          load: true
          push: false
      -
        name: Smoke test image
        run: |
          set -euo pipefail
          lb_image_tag="librebooking-pr:${GITHUB_SHA}"
          mysql_service_id="${{ job.services.mysql.id }}"

          docker create --name librebooking-smoke-src "${lb_image_tag}" >/dev/null
          docker cp librebooking-smoke-src:/var/www/html/database_schema /tmp/librebooking-database_schema
          docker rm librebooking-smoke-src

          cat \
            /tmp/librebooking-database_schema/create-db.sql \
            /tmp/librebooking-database_schema/create-schema.sql \
            | docker exec --interactive "${mysql_service_id}" mysql --user root --password=root

          docker run --rm \
            --add-host host.docker.internal:host-gateway \
            "${lb_image_tag}" \
            php /var/www/html/phing-tasks/UpgradeDbTask.php \
              librebooking \
              librebooking \
              host.docker.internal \
              librebooking \
              /var/www/html/database_schema

          docker run --detach \
            --name librebooking-smoke \
            --add-host host.docker.internal:host-gateway \
            --publish 18080:8080 \
            --env LB_DATABASE_HOSTSPEC=host.docker.internal \
            --env LB_DATABASE_NAME=librebooking \
            --env LB_DATABASE_USER=librebooking \
            --env LB_DATABASE_PASSWORD=librebooking \
            "${lb_image_tag}"

          for attempt in $(seq 1 30); do
            if curl --silent --show-error --fail --max-time 2 http://127.0.0.1:18080/Web/; then
              echo "Connected to docker image successfully"
              break
            fi

            if [ "${attempt}" = "30" ]; then
              echo "Smoke test failed: HTTP endpoint did not become ready" >&2
              docker logs librebooking-smoke || true
              docker logs "${{ job.services.mysql.id }}" || true
              exit 1
            fi

            sleep 2
          done

          modules_count=$(docker exec librebooking-smoke php -m | grep -Ec '^(gd|ldap|mysqli|timezonedb)$' || true)
          if [ "${modules_count}" -ne 4 ]; then
            echo "Smoke test failed: expected 4 required PHP modules (gd, ldap, mysqli, timezonedb), but found ${modules_count}"
            docker exec librebooking-smoke php -m || true
            exit 1
          fi

      -
        name: Cleanup smoke container
        if: always()
        run: |
          docker rm --force librebooking-smoke >/dev/null 2>&1 || true
          docker rm --force librebooking-smoke-src >/dev/null 2>&1 || true
          rm -rf /tmp/librebooking-database_schema