Anthias/.github/workflows/python-lint.yaml

name: Run Python Linter

on:
  push:
    branches:
      - 'master'
    paths:
      - pyproject.toml
      - uv.lock
      - '**/*.py'
      - '.github/workflows/python-lint.yaml'
  pull_request:
    branches:
      - master
    paths:
      - pyproject.toml
      - uv.lock
      - '**/*.py'
      - '.github/workflows/python-lint.yaml'

jobs:
  run-python-linter:
    runs-on: ubuntu-24.04
    strategy:
      matrix:
        python-version: ["3.13"]
    steps:
    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1

    - name: Set up Python ${{ matrix.python-version }}
      uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
      with:
        python-version: ${{ matrix.python-version }}

    - name: Install uv
      uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
      with:
        version: '0.9.17'

    - name: Install dependencies
      run: |
        uv venv
        uv pip install --group dev-host
        uv pip install --group website

    - name: Run Ruff linting checks
      run: |
        uv run ruff check .

    - name: Run Ruff formatting checks
      run: |
        uv run ruff format --check .

    # The repo-wide pytest addopts in pyproject.toml include
    # pytest-playwright flags; the rpi-imager unit tests don't pull
    # pytest-playwright, so override addopts here. Same pattern the old
    # deploy-website test job used; this is now the rpi-imager
    # generator's only PR-time CI gate after that job was removed.
    #
    # `-p no:django` bypasses the pytest-django plugin. The earlier
    # `uv run ruff check` steps implicitly sync the project venv with
    # the default group set (the `dev` group ships pytest-django
    # 4.12.0 + playwright + etc.), so by the time we get here the
    # plugin is sitting in `.venv` as an auto-loading entry-point.
    # Without `-p no:django`, it would read `DJANGO_SETTINGS_MODULE`
    # from pyproject.toml and try to bootstrap Django — which fails
    # on the first transitive import the curated env doesn't have
    # (pytz, channels, …). The rpi-imager generator tests don't need
    # Django at all, so just disable the plugin.
    - name: Run rpi-imager generator tests
      run: |
        .venv/bin/pytest tools/raspberry_pi_imager/tests/ \
          -p no:django \
          -v -o "addopts=--strict-markers"