wheels.yml

name: Build Python Binding

on:
  push:
    branches:
      - main
    tags:
      - '**'
  # pull_request: {}

jobs:  # Workflow credit to https://github.com/samuelcolvin/rtoml/blob/main/.github/workflows/ci.yml
  # Yue: I use cibuildwheel to start multiple dockers with different targets, and use maturin to actually generate the wheel

  build_wheels:
    name: Build wheels py3.${{ matrix.python-version }} on ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        os:
          - ubuntu
          - macos
          - windows
        python-version:  # Yue 2022.10.9: I enabled abi3-py37 in pyo3, so everything built will be py37-abi3 which is compatible with py37+
          # - '7'
          - '8'  # use python 3.8 to build because macos universal2 requires at least python 3.8; however the result will be py37-abi3
          # - '9'
          # - '10'
          # - '11'
        include:
          - os: ubuntu
            platform: linux
          - os: windows
            ls: dir
    runs-on: ${{ format('{0}-latest', matrix.os) }}

    steps:
      - uses: actions/checkout@v3
        if: matrix.os != 'macos' || matrix['python-version'] != '7'  # no python37 for macos

      - uses: actions/setup-python@v3
        if: matrix.os != 'macos' || matrix['python-version'] != '7'  # no python37 for macos

      - name: Install Rust
        # unnecessary for ubuntu because it's installed inside cibuildwheel
        # no python37 for macos
        if: matrix.os != 'ubuntu' && (matrix.os != 'macos' || matrix['python-version'] != '7')
        uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: nightly-2023-11-16
          override: true

      - name: Install Python dependencies
        if: matrix.os != 'macos' || matrix['python-version'] != '7'  # no python37 for macos
        run: python -m pip install -U setuptools wheel twine cibuildwheel

      # - name: Set up QEMU for building with emulator
      #   if: matrix.os == 'ubuntu'
      #   uses: docker/setup-qemu-action@v2
      #   with:
      #     platforms: all

      - name: Build Wheels
        if: matrix.os != 'macos' || matrix['python-version'] != '7'  # no python37 for macos
        run: python -m cibuildwheel --output-dir wheelhouse
        env:
          CIBW_BUILD: 'cp3${{ matrix.python-version }}-*'
          CIBW_SKIP: "*-win32 *_i686"  # do not build for 32bit machines, rustc seems to complain about it
          CIBW_PLATFORM: ${{ matrix.platform || matrix.os }}  # only build for specific platform
          CIBW_ENVIRONMENT: 'PATH="$HOME/.cargo/bin:$PATH"'
          CIBW_ENVIRONMENT_WINDOWS: 'PATH="$UserProfile\.cargo\bin;$PATH"'
          CIBW_MANYLINUX_X86_64_IMAGE: 'manylinux2014'
          # Yue 2022.10.17: build on aarch64 failed due to strange `cargo metadata` exited with an error:     Updating crates.io index
          CIBW_ARCHS_LINUX: x86_64  # aarch64 requires QEMU, ~ 40min for each manylinux and musllinux...
          CIBW_ARCHS_MACOS: universal2
          CIBW_BEFORE_BUILD: >
            rustup default nightly-2023-11-16 &&
            rustup show
          CIBW_BEFORE_BUILD_MACOS: >
            rustup target add aarch64-apple-darwin &&
            rustup default nightly-2023-11-16 &&
            rustup show
          CIBW_BEFORE_BUILD_LINUX: >
            curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain=nightly-2023-11-16 --profile=minimal -y &&
            rustup show

      - name: Build windows 32bit wheels
        if: matrix.os == 'windows'
        run: cibuildwheel --output-dir wheelhouse
        env:
          CIBW_BUILD: 'cp3${{ matrix.python-version }}-win32'
          CIBW_PLATFORM: windows
          CIBW_ENVIRONMENT: 'PATH="$UserProfile\.cargo\bin;$PATH"'
          CIBW_BEFORE_BUILD: >
            rustup toolchain install nightly-2023-11-16-i686-pc-windows-msvc &&
            rustup default nightly-2023-11-16-i686-pc-windows-msvc &&
            rustup override set nightly-2023-11-16-i686-pc-windows-msvc &&
            rustup show

      - name: list wheel files
        if: matrix.os != 'macos' || matrix['python-version'] != '7'  # no python37 for macos
        run: ${{ matrix.ls || 'ls -lh' }} wheelhouse/

      - name: twine check
        if: matrix.os != 'macos' || matrix['python-version'] != '7'  # no python37 for macos
        run: twine check wheelhouse/*

      - uses: actions/upload-artifact@v3
        if: matrix.os != 'macos' || matrix['python-version'] != '7'  # no python37 for macos
        with:
          path: wheelhouse/*.whl

  # build_sdist:
  #   name: Build source distribution
  #   runs-on: ubuntu-latest

  #   - uses: actions/checkout@v3

  #   - uses: actions/setup-python@v3

  #   - name: Install Python dependencies
  #     run: python -m pip install -U maturin cffi

  #   - uses: actions/upload-artifact@v3
  #     with:
  #       path: ./wheelhouse/*.tar.gz


  # upload_pypi:
  #   needs: [build_wheels, build_sdist]