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path: root/.github/workflows/ci.yml
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name: CI

on:
  push:
  workflow_dispatch:

jobs:
  lint:
    runs-on: ubuntu-latest
    name: Linting
    steps:
      - name: Checkout
        uses: actions/checkout@v6
      - name: Set up Python
        uses: actions/setup-python@v6
        with:
          python-version: '3.x'
      - name: Run black
        uses: psf/black@stable
        with:
          # > Please note that the --check flag is required so that the
          # > workflow fails if Black finds files that need to be formatted.
          options: --check --verbose --skip-string-normalization

  test:
    strategy:
      matrix:
        python-version: ['3.9', '3.10', '3.11', '3.12', '3.13', '3.14']
    runs-on: ubuntu-latest
    name: 'Python ${{ matrix.python-version }}'
    steps:
      - name: Checkout
        uses: actions/checkout@v6
      - name: Set up Python
        uses: actions/setup-python@v6
        with:
          python-version: '${{ matrix.python-version }}'
          cache: pip
      - name: Install dependencies
        run: pip install -q -r requirements.txt
      - name: Run tests
        run: make test

  publish_docker:
    needs: [lint, test]
    runs-on: ubuntu-latest
    name: 'Publish: Docker Hub'
    steps:
      - name: Checkout
        uses: actions/checkout@v6
      - id: meta
        name: Docker Hub metadata
        uses: docker/metadata-action@v6
        with:
          images: '${{ secrets.DOCKERHUB_USERNAME }}/void'
          flavor: |
            latest=auto
          tags: |
            type=ref,event=branch
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=semver,pattern={{major}}
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v4
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v4
      - id: params
        name: Push? Which platforms?
        # Building for ARM for every commit not in master is too time-consuming.
        run: |
          if ${{ github.ref == 'refs/heads/master' }}; then
              echo 'push=true' >> "$GITHUB_OUTPUT"
              echo 'platforms=amd64,armhf,arm64' >> "$GITHUB_OUTPUT"
          else
              echo 'push=false' >> "$GITHUB_OUTPUT"
              echo 'platforms=amd64' >> "$GITHUB_OUTPUT"
          fi
      - name: Login to Docker Hub
        # https://github.com/orgs/community/discussions/163013
        if: steps.params.outputs.push == 'true'
        uses: docker/login-action@v4
        with:
          username: '${{ secrets.DOCKERHUB_USERNAME }}'
          password: '${{ secrets.DOCKERHUB_TOKEN }}'
      - name: Build and publish
        uses: docker/build-push-action@v7
        with:
          # Without context, .dockerignore is not respected?
          # https://stackoverflow.com/a/74552407/514684
          context: .
          labels: '${{ steps.meta.outputs.labels }}'
          platforms: '${{ steps.params.outputs.platforms }}'
          push: '${{ steps.params.outputs.push }}'
          tags: '${{ steps.meta.outputs.tags }}'