python-bindings.yml

name: Python Bindings

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

permissions:
  contents: read

env:
  CSV_FETCHCONTENT_BASE_DIR: ${{ github.workspace }}/.cache/fetchcontent

jobs:
  python-latest:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout repository and submodules
      uses: actions/checkout@v5
      with:
        submodules: recursive

    - name: Set up latest Python
      uses: actions/setup-python@v5
      with:
        python-version: "3.x"

    - name: Cache CMake FetchContent dependencies
      uses: actions/cache@v5
      with:
        path: ${{ env.CSV_FETCHCONTENT_BASE_DIR }}
        key: fetchcontent-${{ runner.os }}-python-${{ hashFiles('CMakeLists.txt', 'python/CMakeLists.txt') }}

    - name: Install Python test dependencies
      run: |
        python -m pip install --upgrade pip
        python -m pip install --upgrade coverage numpy pandas

    - name: Configure CMake
      run: >
        cmake -B build-python
        -DBUILD_PYTHON=ON
        -DCSV_BUILD_TESTS=OFF
        -DCSV_BUILD_PROGRAMS=OFF
        -DCMAKE_BUILD_TYPE=Release
        -DPython_EXECUTABLE="$(python -c 'import sys; print(sys.executable)')"
        -DPYTHON_EXECUTABLE="$(python -c 'import sys; print(sys.executable)')"
        -S ${{ github.workspace }}

    - name: Build fastpycsv
      run: cmake --build build-python --config Release --target fastpycsv

    - name: Run Python tests with coverage
      env:
        PYTHONPATH: ${{ github.workspace }}/python
      run: >
        python -m coverage run
        --source=python/fastpycsv
        -m unittest discover
        -s python/tests

    - name: Generate Python coverage report
      run: python -m coverage xml -o python-coverage.xml

    - name: Upload Python coverage to Codecov
      uses: codecov/codecov-action@v5
      with:
        files: python-coverage.xml
        flags: python
        name: python-bindings
        fail_ci_if_error: true
        token: ${{ secrets.CODECOV_TOKEN }}
        override_commit: ${{ github.event.pull_request.head.sha || github.sha }}
        override_pr: ${{ github.event.pull_request.number }}