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:
    name: Build manylinux wheels
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-24.04]

    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 QEMU for aarch64 emulation
        uses: docker/setup-qemu-action@v2
        with:
          platforms: all

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

      - name: build
        run: cibuildwheel --platform linux
        env:
          CIBW_BUILD: cp3?-*
          CIBW_ARCHS: x86_64 aarch64
          CIBW_ENVIRONMENT: CXXFLAGS="-std=c++17"  
          CIBW_MANYLINUX_X86_64_IMAGE: "manylinux2014"
          CIBW_MANYLINUX_AARCH64_IMAGE: "manylinux2014"
          CIBW_BEFORE_BUILD: |
            yum install -y gcc gcc-c++

      - name: upload wheels
        uses: actions/upload-artifact@v3
        with:
          path: wheelhouse/*.whl