ci.yml

name: CI

on:
  push:
    branches: ["main"]
    tags: ["*"]
  pull_request:
    branches: ["main"]
  schedule:
    - cron: "0 13 * * 5"

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:

  ############
  # Building #
  ############

  build:
    strategy:
      fail-fast: false
      matrix:
        dist: ["alpine", "debian"]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - uses: docker/setup-buildx-action@v3

      - name: Verify Dockerfile is up-to-date
        run: |
          make codegen.dockerfile dir=${{ matrix.dist }}

          git update-index --refresh
          ! git diff-index HEAD -- | grep '${{ matrix.dist }}'

      - run: make docker.image no-cache=yes
                  dockerfile=${{ matrix.dist }}
                  tag=build-${{ github.run_number }}

      - run: make docker.tar to-file=.cache/image.tar
                  tags=build-${{ github.run_number }}
      - uses: actions/upload-artifact@v3
        with:
          name: ${{ matrix.dist }}-${{ github.run_number }}
          path: .cache/image.tar
          retention-days: 1




  ###########
  # Testing #
  ###########

  test:
    needs: ["build"]
    strategy:
      fail-fast: false
      matrix:
        dist: ["alpine", "debian"]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - run: make npm.install

      - uses: actions/download-artifact@v3
        with:
          name: ${{ matrix.dist }}-${{ github.run_number }}
          path: .cache/
      - run: make docker.untar from-file=.cache/image.tar

      - run: make test.docker
                  tag=build-${{ github.run_number }}
        env:
          DOCKERFILE: ${{ matrix.dist }}




  #############
  # Releasing #
  #############

  push:
    if: ${{ github.event_name == 'push'
         && startsWith(github.ref, 'refs/tags/') }}
    needs: ["build", "test"]
    strategy:
      fail-fast: false
      max-parallel: 1
      matrix:
        registry: ["docker.io", "ghcr.io", "quay.io"]
        dist: ["alpine", "debian"]
    runs-on: ubuntu-latest
    steps:
      # Skip if this is fork and no credentials are provided.
      - id: skip
        run: echo "no=${{ !(
               github.repository_owner != 'instrumentisto'
               && ((matrix.registry == 'quay.io'
                    && secrets.QUAYIO_ROBOT_USER == '')
                || (matrix.registry == 'docker.io'
                    && secrets.DOCKERHUB_BOT_USER == ''))
             ) }}" >> $GITHUB_OUTPUT

      - uses: actions/checkout@v4
        if: ${{ steps.skip.outputs.no == 'true' }}

      - name: Parse Docker image name from Git repository name
        id: image
        uses: actions-ecosystem/action-regex-match@v2
        with:
          text: ${{ github.repository }}
          regex: '^${{ github.repository_owner }}/(.+)-docker-image$'

      - uses: actions/download-artifact@v3
        with:
          name: ${{ matrix.dist }}-${{ github.run_number }}
          path: .cache/
        if: ${{ steps.skip.outputs.no == 'true' }}
      - run: make docker.untar from-file=.cache/image.tar
        if: ${{ steps.skip.outputs.no == 'true' }}

      - name: Login to ${{ matrix.registry }} container registry
        uses: docker/login-action@v3
        with:
          registry: ${{ matrix.registry }}
          username: ${{ (matrix.registry == 'docker.io'
                         && secrets.DOCKERHUB_BOT_USER)
                     || (matrix.registry == 'quay.io'
                         && secrets.QUAYIO_ROBOT_USER)
                     || github.repository_owner }}
          password: ${{ (matrix.registry == 'docker.io'
                         && secrets.DOCKERHUB_BOT_PASS)
                     || (matrix.registry == 'quay.io'
                         && secrets.QUAYIO_ROBOT_TOKEN)
                     || secrets.GITHUB_TOKEN }}
        if: ${{ steps.skip.outputs.no == 'true' }}

      - run: make docker.tags of=build-${{ github.run_number }}
                  registries=${{ matrix.registry }}
        env:
          DOCKERFILE: ${{ matrix.dist }}  # for correct `tags` auto-detection
        if: ${{ steps.skip.outputs.no == 'true' }}
      - run: make docker.push
                  registries=${{ matrix.registry }}
        env:
          DOCKERFILE: ${{ matrix.dist }}  # for correct `tags` auto-detection
        if: ${{ steps.skip.outputs.no == 'true' }}

      # On GitHub Container Registry README is automatically updated on pushes.
      - name: Update README on Docker Hub
        uses: christian-korneck/update-container-description-action@v1
        with:
          provider: dockerhub
          destination_container_repo: ${{ github.repository_owner }}/${{ steps.image.outputs.group1 }}
          readme_file: README.md
        env:
          DOCKER_USER: ${{ secrets.DOCKERHUB_BOT_USER }}
          DOCKER_PASS: ${{ secrets.DOCKERHUB_BOT_PASS }}
        if: ${{ steps.skip.outputs.no == 'true'
             && matrix.registry == 'docker.io' }}
      - name: Update README on Quay.io
        uses: christian-korneck/update-container-description-action@v1
        with:
          provider: quay
          destination_container_repo: ${{ matrix.registry }}/${{ github.repository_owner }}/${{ steps.image.outputs.group1 }}
          readme_file: README.md
        env:
          DOCKER_APIKEY: ${{ secrets.QUAYIO_API_TOKEN }}
        if: ${{ steps.skip.outputs.no == 'true'
             && matrix.registry == 'quay.io' }}

  release-github:
    name: release (GitHub)
    if: ${{ github.event_name == 'push'
         && startsWith(github.ref, 'refs/tags/') }}
    needs: ["push"]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Parse semver versions from Git tag
        id: semver
        uses: actions-ecosystem/action-regex-match@v2
        with:
          text: ${{ github.ref }}
          regex: '^refs/tags/((([0-9]+)\.[0-9]+)\.[0-9]+-(.+))$'
      - name: Parse CHANGELOG link
        id: changelog
        run: echo "link=${{ github.server_url }}/${{ github.repository }}/blob/${{ steps.semver.outputs.group1 }}/CHANGELOG.md#$(sed -n '/^## \[${{ steps.semver.outputs.group1 }}\]/{s/^## \[\(.*\)\][^0-9]*\([0-9].*\)/\1--\2/;s/[^0-9a-z-]*//g;p;}' CHANGELOG.md)"
             >> $GITHUB_OUTPUT

      - name: Create GitHub release
        uses: softprops/action-gh-release@v1
        with:
          name: ${{ steps.semver.outputs.group1 }}
          body: |
            [Changelog](${{ steps.changelog.outputs.link }})