wheels_recipe.yml

name: Build and Test Wheels
on:
  workflow_call:
    inputs:
      CIBW_ENVIRONMENT:
        required: false
        type: string
        default: PIP_PREFER_BINARY=1
      CIBW_BUILD_FRONTEND:
        required: false
        type: string
      CIBW_TEST_REQUIRES:
        required: false
        type: string
        default: "-r requirements/default.txt -r requirements/test.txt"
      CIBW_TEST_COMMAND:
        required: false
        type: string
        default: "pytest --pyargs skimage"

env:
  CIBW_BUILD_VERBOSITY: 2
  CIBW_TEST_REQUIRES: ${{ inputs.CIBW_TEST_REQUIRES }}
  CIBW_ENVIRONMENT: ${{ inputs.CIBW_ENVIRONMENT }}
  CIBW_BUILD_FRONTEND: ${{ inputs.CIBW_BUILD_FRONTEND }}
  CIBW_TEST_COMMAND: ${{inputs.CIBW_TEST_COMMAND }}

permissions:
  contents: read

jobs:
  build_linux_39_and_above_wheels:
    name: Build python ${{ matrix.cibw_python }} ${{ matrix.cibw_arch }} wheels on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest]
        cibw_python: ["cp39-*", "cp310-*", "cp311-*", "cp312-*"]
        cibw_manylinux: [manylinux2014]
        cibw_arch: ["x86_64"]
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - uses: actions/setup-python@v5
        name: Install Python
        with:
          python-version: "3.12"
      - name: Install cibuildwheel
        run: python -m pip install cibuildwheel
      - name: Build the wheel
        run: python -m cibuildwheel --output-dir dist
        env:
          CIBW_BUILD: ${{ matrix.cibw_python }}
          CIBW_ARCHS_LINUX: ${{ matrix.cibw_arch }}
          CIBW_SKIP: "*-musllinux_*"
          CIBW_MANYLINUX_X86_64_IMAGE: ${{ matrix.cibw_manylinux }}
          CIBW_MANYLINUX_I686_IMAGE: ${{ matrix.cibw_manylinux }}
          CIBW_ENVIRONMENT_PASS_LINUX: SKIMAGE_LINK_FLAGS
          SKIMAGE_LINK_FLAGS: "-Wl,--strip-debug"
      - uses: actions/upload-artifact@v3
        with:
          name: wheels
          path: ./dist/*.whl

  build_linux_aarch64_wheels:
    name: Build python ${{ matrix.cibw_python }} aarch64 wheels on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest]
        cibw_python: ["cp39-*", "cp310-*", "cp311-*", "cp312-*"]
        cibw_manylinux: [manylinux2014]
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - uses: actions/setup-python@v5
        name: Install Python
        with:
          python-version: "3.12"
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3
        with:
          platforms: arm64
      - name: Install cibuildwheel
        run: python -m pip install cibuildwheel
      - name: Build the wheel
        run: python -m cibuildwheel --output-dir dist
        env:
          CIBW_BUILD: ${{ matrix.cibw_python }}
          CIBW_SKIP: "*-musllinux_*"
          # skip aarch64 tests which often exceed the 6 hour time limit
          CIBW_TEST_SKIP: "*_aarch64"
          CIBW_ARCHS_LINUX: aarch64
          CIBW_MANYLINUX_X86_64_IMAGE: ${{ matrix.cibw_manylinux }}
          CIBW_MANYLINUX_I686_IMAGE: ${{ matrix.cibw_manylinux }}
          CIBW_ENVIRONMENT_PASS_LINUX: SKIMAGE_LINK_FLAGS
          SKIMAGE_LINK_FLAGS: "-Wl,--strip-debug"
      - uses: actions/upload-artifact@v3
        with:
          name: wheels
          path: ./dist/*.whl

  build_macos_wheels:
    name: Build python ${{ matrix.cibw_python }} ${{ matrix.cibw_arch }} wheels on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        os: [macos-12]
        cibw_python: ["cp39-*", "cp310-*", "cp311-*", "cp312-*"]
        # TODO: add "universal2" once a universal2 libomp is available
        cibw_arch: ["x86_64", "arm64"]

    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - uses: actions/setup-python@v5
        name: Install Python
        with:
          python-version: "3.12"

      - name: Install cibuildwheel
        run: |
          python -m pip install cibuildwheel

      - name: Build wheels for CPython Mac OS
        run: |
          # Make sure to use a libomp version binary compatible with the oldest
          # supported version of the macos SDK as libomp will be vendored into
          # the scikit-image wheels for macos. The list of binaries are in
          # https://packages.macports.org/libomp/.  Currently, the oldest
          # supported macos version is: High Sierra / 10.13. When upgrading
          # this, be sure to update the MACOSX_DEPLOYMENT_TARGET environment
          # variable accordingly. Note that Darwin_17 == High Sierra / 10.13.
          #
          # We need to set both MACOS_DEPLOYMENT_TARGET and MACOSX_DEPLOYMENT_TARGET
          # until there is a new release with this commit:
          # https://github.com/mesonbuild/meson-python/pull/309
          if [[ "$CIBW_ARCHS_MACOS" == arm64 ]]; then
              # SciPy requires 12.0 on arm to prevent kernel panics
              # https://github.com/scipy/scipy/issues/14688
              # so being conservative, we just do the same here
              export MACOSX_DEPLOYMENT_TARGET=12.0
              export MACOS_DEPLOYMENT_TARGET=12.0
              OPENMP_URL="https://anaconda.org/conda-forge/llvm-openmp/11.1.0/download/osx-arm64/llvm-openmp-11.1.0-hf3c4609_1.tar.bz2"
          else
              export MACOSX_DEPLOYMENT_TARGET=10.9
              export MACOS_DEPLOYMENT_TARGET=10.9
              OPENMP_URL="https://anaconda.org/conda-forge/llvm-openmp/11.1.0/download/osx-64/llvm-openmp-11.1.0-hda6cdc1_1.tar.bz2"
          fi
          echo MACOSX_DEPLOYMENT_TARGET=${MACOSX_DEPLOYMENT_TARGET}
          echo MACOS_DEPLOYMENT_TARGET=${MACOS_DEPLOYMENT_TARGET}

          # use conda to install llvm-openmp
          # Note that we do NOT activate the conda environment, we just add the
          # library install path to CFLAGS/CXXFLAGS/LDFLAGS below.
          sudo conda create -n build $OPENMP_URL
          PREFIX="/usr/local/miniconda/envs/build"
          export CC=/usr/bin/clang
          export CXX=/usr/bin/clang++
          export CPPFLAGS="$CPPFLAGS -Xpreprocessor -fopenmp"
          export CFLAGS="$CFLAGS -Wno-implicit-function-declaration -I$PREFIX/include"
          export CXXFLAGS="$CXXFLAGS -I$PREFIX/include"
          export LDFLAGS="$LDFLAGS -Wl,-S -Wl,-rpath,$PREFIX/lib -L$PREFIX/lib -lomp"

          python -m cibuildwheel --output-dir dist
        env:
          CIBW_BUILD: ${{ matrix.cibw_python }}
          CIBW_ARCHS_MACOS: ${{ matrix.cibw_arch }}
          CIBW_MANYLINUX_X86_64_IMAGE: manylinux1
          CIBW_MANYLINUX_I686_IMAGE: manylinux1
          CIBW_TEST_SKIP: "*-macosx_arm64"

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

  build_windows_wheels:
    name: Build ${{ matrix.cibw_python }} ${{ matrix.cibw_arch }} wheels on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        os: [windows-latest]
        cibw_arch: ["AMD64"]
        cibw_python: ["cp39-*", "cp310-*", "cp311-*", "cp312-*"]

    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - uses: actions/setup-python@v5
        name: Install Python
        with:
          python-version: "3.12"

      - name: Install cibuildwheel and add clang-cl to path
        run: |
          python -m pip install cibuildwheel

      - name: Build AMD64 Windows wheels for CPython
        if: matrix.cibw_arch == 'AMD64'
        # To avoid "LINK : fatal error LNK1158: cannot run 'rc.exe'"
        # we explicitly add rc.exe to path using the method from:
        # https://github.com/actions/virtual-environments/issues/294#issuecomment-588090582
        # with additional -arch=x86 flag to vsdevcmd.bat
        run: |
          function Invoke-VSDevEnvironment {
            $vswhere = "${env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe"
              $installationPath = & $vswhere -prerelease -legacy -latest -property installationPath
              $Command = Join-Path $installationPath "Common7\Tools\vsdevcmd.bat"
            & "${env:COMSPEC}" /s /c "`"$Command`" -arch=amd64 -no_logo && set" | Foreach-Object {
                  if ($_ -match '^([^=]+)=(.*)') {
                      [System.Environment]::SetEnvironmentVariable($matches[1], $matches[2])
                  }
              }
          }
          Invoke-VSDevEnvironment
          Get-Command rc.exe | Format-Table -AutoSize
          python -m cibuildwheel --output-dir dist
        env:
          # define CC, CXX so meson will use clang-cl instead of MSVC
          CC: clang-cl
          CXX: clang-cl
          CIBW_BUILD: ${{ matrix.cibw_python }}
          CIBW_ARCHS_WINDOWS: ${{ matrix.cibw_arch }}
          # -Wl,-S equivalent to gcc's -Wl,--strip-debug
          LDFLAGS: "-Wl,-S"

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