build_wheels.yml

name: Build wheels

on: [push, pull_request] 
    
# Cannot use cibuildwheels because the current images used by cibuildwheels do not support C++17. 

jobs:
  build_wheels_windows:
    name: ${{ matrix.os }} ${{ matrix.python-version }} ${{ matrix.arch }} wheels
    runs-on: ${{ matrix.os }}
    env:
      TEMP: C:\Temp
      TMP: C:\Temp
      
    strategy:
      matrix:
        os: [windows-2022]
        arch: [x86, x64]
        python-version: [3.8, 3.9, "3.10", "3.11", "3.12"]

    steps:          
      - name: Support longpaths
        run: git config --system core.longpaths true
        
      - name: Check LongPathsEnabled
        run: |
          (Get-ItemProperty "HKLM:System\CurrentControlSet\Control\FileSystem").LongPathsEnabled
      
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Set up Python ${{ matrix.python-version }}
        uses: actions/setup-python@v4
        with:
          python-version: ${{ matrix.python-version }}
          architecture: ${{ matrix.arch }}

      - name: Install packages
        run: |
          pip install wheel
          pip install setuptools
          pip install build

      - name: build
        run: python -m build

      - name: upload wheels
        uses: actions/upload-artifact@v3
        with:
          path: ./dist/*.whl
                    
  build_wheels_mac:
    name: ${{ matrix.os }} ${{ matrix.python-version }} wheels
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        # Trying to use cibuildwheels to build mac wheels fails because the version of XCode is not high enough.
        # There is documentation here https://github.com/pypa/cibuildwheel/blob/main/docs/cpp_standards.md on how to
        # set it but I could not get it to work while using the standard images provided by github actions does work.
        os: [macos-latest, macos-13]
        python-version: [3.8, 3.9, "3.10", "3.11", "3.12"]
    env:
      SYSTEM_VERSION_COMPAT: 0

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Set up Python ${{ matrix.python-version }}
        uses: actions/setup-python@v4
        with:
          python-version: ${{ matrix.python-version }}

      - name: Install packages
        run: |
          pip install wheel
          pip install setuptools
          pip install build

      - name: build
        run: python -m build

      - name: upload wheels
        uses: actions/upload-artifact@v3
        with:
          path: ./dist/*.whl
          
  build_wheels_manylinux_x86_64:
    name: Build manylinux wheels
    runs-on: ubuntu-24.04
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

        # Need to use the image specified below to build manylinux wheels
        # PyPi only accepts manylinux wheels, it does not accept wheels for specific versions/architectures
        # Note that at least manylinux2014 is needed to get support for C++17
      - name: Build manylinux Python wheels
        uses: RalfG/python-wheels-manylinux-build@v0.7.1-manylinux2014_x86_64
        with:
          python-versions: 'cp37-cp37m cp38-cp38 cp39-cp39 cp310-cp310 cp311-cp311 cp312-cp312'
          build-requirements: 'setuptools'

      - name: upload wheels
        uses: actions/upload-artifact@v3
        with:
          path: ./dist/*-manylinux*.whl
          
  build_wheels_manylinux_arm64:
    name: Build manylinux wheels (arm64)
    runs-on: ubuntu-24.04
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      # Register QEMU for cross-architecture emulation
      - name: Set up QEMU for cross-compilation
        uses: docker/setup-qemu-action@v2
        with:
          platforms: arm64

      # Build manylinux Python wheels for arm64 architecture
      - name: Build manylinux Python wheels (arm64)
        uses: RalfG/python-wheels-manylinux-build@v0.7.1-manylinux2014_aarch64
        with:
          python-versions: 'cp37-cp37m cp38-cp38 cp39-cp39 cp310-cp310 cp311-cp311 cp312-cp312'
          build-requirements: 'setuptools'

      - name: Upload arm64 wheels
        uses: actions/upload-artifact@v3
        with:
          path: ./dist/*-manylinux*.whl
          name: wheels-arm64