python-app.yml

# This workflow will install Python dependencies, run tests and lint with a single version of Python
# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions

name: Python application

on:
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]

jobs:
  detect-changes:
    name: Detect changes
    runs-on: ubuntu-latest
    outputs:
      python_code: ${{steps.diff_check.outputs.python_code}}
    steps:
      - uses: actions/checkout@v7
        with:
          ref: ${{ github.base_ref }}
      - uses: actions/checkout@v7
        with:
          clean: false
      - name: Generate diffs
        id: diff_check
        run: |
          git branch -a --list | cat
          PYTHON_CODE_CHANGES=$(git diff --compact-summary origin/${{ github.base_ref }} -- routingfilter routing_test.py test_data pyproject.toml .github/workflows/python-app.yml .github/configurations | wc -l)
          echo "python_code=$PYTHON_CODE_CHANGES" >> "$GITHUB_OUTPUT"

  build:
    runs-on: ubuntu-24.04
    needs: [ "detect-changes" ]
    if: ${{ needs.detect-changes.outputs.python_code > 0 }}

    steps:
    - uses: actions/checkout@v7
    - name: Set up Python
      id: setup_python
      uses: actions/setup-python@v7
      with:
        python-version: "3.12"
        cache: pip
        cache-dependency-path: pyproject.toml
    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        python -m pip install -e ".[dev]"
    - name: Show which copy is under test
      run: python -c "import pathlib, routingfilter; print(pathlib.Path(routingfilter.__file__).resolve())"
    - name: "Lint with black"
      run: black ./routingfilter --config .github/configurations/python_linters/.black --check --diff
    - name: Lint with flake8
      run: flake8 ./routingfilter --config .github/configurations/python_linters/.flake8 --show-source
    - name: "Isort check"
      run: isort ./routingfilter --sp .github/configurations/python_linters/.isort.cfg --profile black --filter-files --check-only --diff
    - name: Test with pytest
      run: python -m pytest routing_test.py