ci.yml

name: CI

on:
  push:
    branches: ["main"]
    tags: ["alpine*"]
  pull_request:
    branches: ["main"]
  schedule:
    - cron: "3 7 * * 3"

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

jobs:

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

  build:
    strategy:
      fail-fast: false
      matrix:
        os: ["linux"]
        arch:
          - amd64
          - arm32v6
          - arm32v7
          - arm64v8
          - i386
          - ppc64le
          - s390x
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0  # for correct image labeling via `git describe --tags`
      - uses: docker/setup-qemu-action@v2
      - uses: docker/setup-buildx-action@v2

      - run: make docker.image no-cache=yes
                  platform=${{ matrix.os }}/${{ matrix.arch }}
                  tag=build-${{ github.run_number }}-${{ matrix.os }}-${{ matrix.arch }}

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




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

  test:
    needs: ["build"]
    strategy:
      fail-fast: false
      matrix:
        os: ["linux"]
        arch:
          - amd64
          - arm32v6
          - arm32v7
          - arm64v8
          - i386
          - ppc64le
          - s390x
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: docker/setup-qemu-action@v2
      - run: make npm.install

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

      - run: make test.docker
                  platform=${{ matrix.os }}/${{ matrix.arch }}
                  tag=build-${{ github.run_number }}-${{ matrix.os }}-${{ matrix.arch }}




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

  push:
    if: ${{ github.event_name == 'push'
         && startsWith(github.ref, 'refs/tags/') }}
    needs: ["build", "test"]
    strategy:
      fail-fast: false
      matrix:
        registry: ["docker.io", "ghcr.io", "quay.io"]
    runs-on: ubuntu-latest
    steps:
      # Skip if this is fork and no credentials are provided.
      - id: skip
        run: echo "no=${{ !(
               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$'
      - name: Parse version from Git tag
        id: version
        uses: actions-ecosystem/action-regex-match@v2
        with:
          text: ${{ github.ref }}
          regex: '^refs/tags/(.+)$'

      - uses: actions/download-artifact@v3
        with:
          path: .cache/
        if: ${{ steps.skip.outputs.no == 'true' }}

      - name: Login to ${{ matrix.registry }} container registry
        uses: docker/login-action@v2
        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' }}

      - name: Tag and push single-platform images
        run: |
          for platform in linux-amd64 \
                          linux-arm32v6 \
                          linux-arm32v7 \
                          linux-arm64v8 \
                          linux-i386 \
                          linux-ppc64le \
                          linux-s390x
          do
            make docker.untar \
                 from-file=.cache/$platform-${{ github.run_number }}/image.tar
            make docker.tags \
                 of=build-${{ github.run_number }}-$platform \
                 tags=${{ steps.version.outputs.group1 }}-$platform \
                 registries=${{ matrix.registry }}
            make docker.push \
                 tags=${{ steps.version.outputs.group1 }}-$platform \
                 registries=${{ matrix.registry }}
          done
        if: ${{ steps.skip.outputs.no == 'true' }}
      - name: Tag and push multi-platform images
        run: make docker.manifest push=yes
                  registries=${{ matrix.registry }}
                  of='${{ steps.version.outputs.group1 }}-linux-amd64
                      ${{ steps.version.outputs.group1 }}-linux-arm32v6
                      ${{ steps.version.outputs.group1 }}-linux-arm32v7
                      ${{ steps.version.outputs.group1 }}-linux-arm64v8
                      ${{ steps.version.outputs.group1 }}-linux-i386
                      ${{ steps.version.outputs.group1 }}-linux-ppc64le
                      ${{ steps.version.outputs.group1 }}-linux-s390x'
        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 version from Git tag
        id: version
        uses: actions-ecosystem/action-regex-match@v2
        with:
          text: ${{ github.ref }}
          regex: '^refs/tags/(.+)$'

      - name: Parse CHANGELOG link
        id: changelog
        run: echo "link=${{ github.server_url }}/${{ github.repository }}/blob/${{ steps.version.outputs.group1 }}/CHANGELOG.md#$(sed -n '/^## \[${{ steps.version.outputs.group1 }}\]/{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: ${{ steps.version.outputs.group1 }}
          body: |
            [Changelog](${{ steps.changelog.outputs.link }})