ci.yml

name: CI

on:
  push:
    branches: ["main"]
    tags: ["v*"]
  pull_request:
    branches: ["main"]

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

env:
  CACHE: ${{ (github.event_name == 'push'
              || github.event_name == 'pull_request')
             && github.ref != 'refs/heads/main'
             && !startsWith(github.ref, 'refs/tags/v')
             && !contains(github.event.head_commit.message, '[fresh ci]') }}
  RUST_BACKTRACE: 1
  RUST_VER: "1.62"

jobs:

  ################
  # Pull Request #
  ################

  pr:
    if: ${{ github.event_name == 'pull_request' }}
    needs:
      - clippy
      - docker
      - helm-lint
      - rustdoc
      - rustfmt
      - test-e2e
      - test-unit
    runs-on: ubuntu-latest
    steps:
      - run: true




  ##########################
  # Linting and formatting #
  ##########################

  clippy:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: ${{ env.RUST_VER }}
          override: true
          components: clippy
      - uses: Swatinem/rust-cache@v1
        if: ${{ env.CACHE == 'true' }}

      - run: make cargo.lint

  helm-lint:
    name: Lint Helm chart
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: azure/setup-helm@v3

      - run: make helm.lint

  rustfmt:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: nightly
          components: rustfmt

      - run: make cargo.fmt check=yes




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

  test-e2e:
    name: E2E tests
    needs: ["docker"]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: ${{ env.RUST_VER }}
          override: true
      - uses: Swatinem/rust-cache@v1
        if: ${{ env.CACHE == 'true' }}
      - uses: satackey/action-docker-layer-caching@v0.0.11
        with:
          key: test-e2e-{hash}
          restore-keys: test-e2e-
        continue-on-error: true
        timeout-minutes: 10
        if: ${{ env.CACHE == 'true' }}

      - uses: actions/download-artifact@v3
        with:
          name: docker-${{ github.run_number }}
          path: .cache/docker/
      - run: make docker.untar

      - run: make test.e2e start-app=yes dockerized=yes
                  tag=build-${{ github.run_number }}

  test-unit:
    name: Unit tests
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: ${{ env.RUST_VER }}
          override: true
      - uses: Swatinem/rust-cache@v1
        if: ${{ env.CACHE == 'true' }}

      - run: make test.unit




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

  docker:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: docker/setup-buildx-action@v2

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

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

  rustdoc:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: ${{ env.RUST_VER }}
          override: true
      - uses: Swatinem/rust-cache@v1
        if: ${{ env.CACHE == 'true' }}

      - run: make cargo.doc private=yes open=no




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

  release-docker:
    name: Release Docker image
    needs: ["docker", "test-e2e"]
    if: ${{ github.event_name == 'push'
            && (github.ref == 'refs/heads/main'
                || startsWith(github.ref, 'refs/tags/v')) }}
    strategy:
      fail-fast: false
      matrix:
        registry: ["docker.io", "ghcr.io", "quay.io"]
    runs-on: ubuntu-latest
    steps:
      # Skip if this is fork and no credentials are provided.
      - id: skip
        run: echo ::set-output name=no::${{ !(
               github.repository_owner != 'instrumentisto'
               && ((matrix.registry == 'quay.io'
                    && secrets.QUAYIO_ROBOT_USER == '')
                || (matrix.registry == 'docker.io'
                    && secrets.DOCKERHUB_BOT_USER == ''))
             ) }}

      - uses: actions/checkout@v3
        if: ${{ steps.skip.outputs.no == 'true' }}

      - uses: actions/download-artifact@v3
        with:
          name: docker-${{ github.run_number }}
          path: .cache/docker/
        if: ${{ steps.skip.outputs.no == 'true' }}
      - run: make docker.untar
        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: Parse semver versions from Git tag
        id: semver
        uses: actions-ecosystem/action-regex-match@v2
        with:
          text: ${{ github.ref }}
          regex: '^refs/tags/v((([0-9]+)\.[0-9]+)\.[0-9]+(-.+)?)$'
        if: ${{ steps.skip.outputs.no == 'true'
                && startsWith(github.ref, 'refs/tags/v') }}
      - name: Form version Docker tags
        id: tags
        uses: actions/github-script@v6
        with:
          result-encoding: string
          script: |
            let versions = '${{ steps.semver.outputs.group1 }}';
            if ('${{ steps.semver.outputs.group4 }}' === '') {
              versions += ',${{ steps.semver.outputs.group2 }}';
              if ('${{ steps.semver.outputs.group3 }}' !== '0') {
                versions += ',${{ steps.semver.outputs.group3 }}';
              }
              versions += 'latest';
            }
            return versions;
        if: ${{ steps.skip.outputs.no == 'true'
                && startsWith(github.ref, 'refs/tags/v') }}

      - run: make docker.tags
                  registries=${{ matrix.registry }}
                  of=build-${{ github.run_number }}
                  tags=${{ (startsWith(github.ref, 'refs/tags/v')
                            && steps.tags.outputs.result)
                           || 'edge' }}
        if: ${{ steps.skip.outputs.no == 'true' }}
      - run: make docker.push
                  registries=${{ matrix.registry }}
                  tags=${{ (startsWith(github.ref, 'refs/tags/v')
                            && steps.tags.outputs.result)
                           || 'edge' }}
        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 }}
          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 }}
          readme_file: README.md
        env:
          DOCKER_APIKEY: ${{ secrets.QUAYIO_API_TOKEN }}
        if: ${{ steps.skip.outputs.no == 'true'
                && matrix.registry == 'quay.io' }}