ci.yaml

name: CI

"on":
  merge_group: {}
  pull_request: {}
  push:
    branches-ignore:
      # These should always correspond to pull requests, so ignore them for
      # the push trigger and let them be triggered by the pull_request
      # trigger, avoiding running the workflow twice. This is a minor
      # optimization so there's no need to ensure this is comprehensive.
      - "dependabot/**"
      - "gh-readonly-queue/**"
      - "renovate/**"
      - "tickets/**"
      - "u/**"
    tags:
      - "*"

jobs:
  lint:
    runs-on: ubuntu-latest
    timeout-minutes: 15

    steps:
      - uses: actions/checkout@v4

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.12"

      - name: Run pre-commit
        uses: pre-commit/action@v3.0.0

  test:
    runs-on: ubuntu-latest
    timeout-minutes: 15

    strategy:
      matrix:
        python:
          - "3.12"

    steps:
      - uses: actions/checkout@v4

      - uses: lsst-sqre/run-nox@v1
        with:
          cache-dependency: "controller/requirements/*.txt"
          cache-key-prefix: test
          nox-sessions: "typing typing-inithome test test-inithome"
          python-version: ${{ matrix.python }}

  # The controller requires Python 3.11, but the modules we add to the Hub
  # have to run with Python 3.10 since that's what the JupyterHub image uses.
  # Run a separate matrix to test those modules.
  test-hub:
    runs-on: ubuntu-latest
    timeout-minutes: 15

    strategy:
      matrix:
        python:
          - "3.10"
          - "3.11"
          - "3.12"

    steps:
      - uses: actions/checkout@v4

      - uses: lsst-sqre/run-nox@v1
        with:
          cache-dependency: "hub/requirements/*.txt"
          cache-key-prefix: test-hub
          nox-sessions: "typing-hub test-hub"
          python-version: ${{ matrix.python }}

  docs:
    runs-on: ubuntu-latest
    timeout-minutes: 15

    steps:
      - uses: actions/checkout@v4
        with:
          # Ensure the documentation gets the right version.
          fetch-depth: 0

      - name: Filter paths
        uses: dorny/paths-filter@v2
        id: filter
        with:
          filters: |
            docs:
              - "docs/**"

      - name: Update package lists
        run: sudo apt-get update

      - name: Install extra packages
        run: sudo apt install -y graphviz

      - uses: lsst-sqre/run-nox@v1
        with:
          cache-dependency: "controller/requirements/*.txt"
          cache-key-prefix: docs
          nox-sessions: docs
          python-version: "3.12"

      # Temporarily force the installation of an alpha version of ltd-conveyor
      # since the current release doesn't support Python 3.12.
      - name: Install ltd-conveyor
        run: >-
          python -m pip install 'ltd-conveyor>=0.9.0a1'

      # Upload docs:
      # - on any push to main
      # - on pushes to tickets/ branches if docs/ directory content changed
      - name: Upload to LSST the Docs
        uses: lsst-sqre/ltd-upload@v1
        with:
          project: nublado
          dir: "docs/_build/html"
          username: ${{ secrets.LTD_USERNAME }}
          password: ${{ secrets.LTD_PASSWORD }}
        if: >
          (github.event_name == 'push' && github.ref_name == 'main')
          || (github.event_name == 'pull_request' && startsWith(github.head_ref, 'tickets/') && steps.filter.outputs.docs == 'true')

  build:
    runs-on: ubuntu-latest
    needs: [lint, test, test-hub]
    timeout-minutes: 15

    # Only do Docker builds of tagged releases and pull requests from ticket
    # branches. This will still trigger on pull requests from untrusted
    # repositories whose branch names match our tickets/* branch convention,
    # but in this case the build will fail with an error since the secret
    # won't be set.
    if: >
      startsWith(github.ref, 'refs/tags/')
      || startsWith(github.head_ref, 'tickets/')

    steps:
      - uses: actions/checkout@v4
        with:
          # Full history is required for setuptools_scm versioning.
          fetch-depth: 0

      - uses: lsst-sqre/build-and-push-to-ghcr@v1
        id: build-controller
        with:
          dockerfile: Dockerfile.controller
          image: ${{ github.repository }}-controller
          github_token: ${{ secrets.GITHUB_TOKEN }}

      - name: Report result
        run: |
          echo Pushed ghcr.io/${{ github.repository }}-controller:${{ steps.build-controller.outputs.tag }}

      - uses: lsst-sqre/build-and-push-to-ghcr@v1
        id: build-hub
        with:
          dockerfile: Dockerfile.hub
          image: ${{ github.repository }}-jupyterhub
          github_token: ${{ secrets.GITHUB_TOKEN }}

      - name: Report result
        run: |
          echo Pushed ghcr.io/${{ github.repository }}-jupyterhub:${{ steps.build-hub.outputs.tag }}

      - uses: lsst-sqre/build-and-push-to-ghcr@v1
        id: build-inithome
        with:
          dockerfile: Dockerfile.inithome
          image: ${{ github.repository }}-inithome
          github_token: ${{ secrets.GITHUB_TOKEN }}

      - name: Report result
        run: |
          echo Pushed ghcr.io/${{ github.repository }}-inithome:${{ steps.build-inithome.outputs.tag }}