preflight.yml

name: Preflight
on:
  pull_request:

defaults:
  run:
    shell: bash

jobs:

  check-commit-message:
    runs-on: ubuntu-latest
    steps:

      - name: Check out repository
        uses: actions/checkout@v4
        with:
          ref: ${{ github.event.pull_request.head.sha }}

      - name: Check commit message
        run: |
          errors=

          readarray -t long_lines < \
            <(git log -1 --pretty=format:%B ${{ github.event.pull_request.head.sha }} | grep -E '^.{73,}$')
          if [[ ${#long_lines[@]} -ne 0 ]]; then
            printf "ERROR: The following lines are longer than 72 characters:\n"
            printf "  > %s\n" "${long_lines[@]}"
            errors=true
          fi

          if [[ $errors == true ]]; then
            exit 2
          fi

  build:
    runs-on: ubuntu-latest
    steps:

      - name: Check out repository
        uses: actions/checkout@v4

      - name: Get UID and GID
        id: get-id
        run: printf "%s\n" uid=$(id -u) gid=$(id -g) >> $GITHUB_OUTPUT

      - name: Set up Docker Buildx
        # https://github.com/marketplace/actions/docker-setup-buildx
        uses: docker/setup-buildx-action@v3

      - name: Build Docker image
        # https://github.com/marketplace/actions/build-and-push-docker-images
        uses: docker/build-push-action@v5
        id: docker
        with:
          context: .
          load: true
          cache-from: type=gha
          cache-to: type=gha,mode=max
          build-args: |
            UID=${{ steps.get-id.outputs.uid }}
            GID=${{ steps.get-id.outputs.gid }}

      - name: Run build
        run: |
          docker run --rm -v .:/home/albs/code ${{ steps.docker.outputs.imageid }} \
              npm run build


  prettier:
    runs-on: ubuntu-latest
    steps:

      - name: Check out repository
        uses: actions/checkout@v4

      - name: Get changed files
        # https://github.com/marketplace/actions/paths-changes-filter
        uses: dorny/paths-filter@v3
        id: changed-files
        with:
          list-files: shell
          filters: |
            src:
              - added|modified: 'src/**/*.vue'
              - added|modified: 'src/**/*.js'

      - name: Get UID and GID
        if: ${{ steps.changed-files.outputs.src == 'true' }}
        id: get-id
        run: printf "%s\n" uid=$(id -u) gid=$(id -g) >> $GITHUB_OUTPUT

      - name: Set up Docker Buildx
        # https://github.com/marketplace/actions/docker-setup-buildx
        uses: docker/setup-buildx-action@v3
        if: ${{ steps.changed-files.outputs.src == 'true' }}

      - name: Build Docker image
        # https://github.com/marketplace/actions/build-and-push-docker-images
        uses: docker/build-push-action@v5
        if: ${{ steps.changed-files.outputs.src == 'true' }}
        id: docker
        with:
          context: .
          load: true
          cache-from: type=gha
          cache-to: type=gha,mode=max
          build-args: |
            UID=${{ steps.get-id.outputs.uid }}
            GID=${{ steps.get-id.outputs.gid }}

      - name: Run prettier
        if: ${{ steps.changed-files.outputs.src == 'true' }}
        run: |
          docker run --rm -v .:/home/albs/code ${{ steps.docker.outputs.imageid }} \
              npx prettier --write ${{ steps.changed-files.outputs.src_files }}
          git -c color.ui=always diff --exit-code