continuous-integration.yml

name: Github Action Continuous Integration (CI) pipeline
on:
  - push

jobs:
  python-code-checks:
    strategy:
      fail-fast: false
      matrix:
        include:
          - check-name: ruff
            check-command: ruff check --format github .
          - check-name: black
            check-command: black --check .
          # TODO: configure mypy cache
          - check-name: mypy
            check-command: mypy
    name: ${{ matrix.check-name }}
    runs-on: ubuntu-22.04
    steps:
      - uses: actions/checkout@v3
      - run: pip install poetry==1.5.0
      - uses: actions/setup-python@v4
        with:
          python-version-file: ".python-version"
          cache: 'poetry'
      - run: poetry install --with dev
      - run: poetry run ${{ matrix.check-command }}
  docker:
    runs-on: ubuntu-22.04
    needs:
      - python-code-checks
    steps:
      - uses: actions/checkout@v3
      - uses: docker/setup-buildx-action@v2
      - if: github.ref_name == github.event.repository.default_branch
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - id: meta
        uses: docker/metadata-action@v4
        with:
          images: |
            ghcr.io/${{ github.repository }}
          tags: |
            type=raw,value=latest,enable={{is_default_branch}}
      - uses: docker/build-push-action@v4
        with:
          push: ${{ github.ref_name == github.event.repository.default_branch }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          platforms: linux/amd64
          # TODO: build other targets?
          target: api
          # NOTE: see https://docs.docker.com/build/cache/backends/gha/#scope
          cache-from: |
            type=gha,scope=${{ github.ref_name }}
            type=gha,scope=${{ github.base_ref }}
            type=gha,scope=${{ github.event.repository.default_branch }}
          cache-to: type=gha,mode=max,scope=${{ github.ref_name }}