build-wheels.yml

name: Build wheels

on:
  push:
    branches: [ main ]
  pull_request:
    branches: [ main ]
  schedule:
    - cron: '0 0 * * 0,3' # 2/weekly

jobs:
  build_wheels:
    name: ${{ matrix.os }}, ${{matrix.python_impl }} ${{ matrix.python }}
    runs-on: ${{ matrix.os }}
    defaults:
      run:
        shell: bash
    strategy:
      fail-fast: false
      matrix:
        python: [cp39, cp310, cp311, cp312]
        os: [ubuntu-latest, windows-latest, macos-13, macos-latest]
        python_impl: [Python]
        include:
          - python: cp312
            os: ubuntu-latest
            python_impl: Pyodide
    env:
      BUILD_COMMIT: "main"  # or a specific version, e.g., v0.13.1
      CIBW_BUILD: ${{ matrix.python }}-*
      CIBW_ARCHS_LINUX: "x86_64 aarch64"
      # No support for pypy, musl, Win32 for 3.10+
      # Skip musl for 3.8 and 3.9 since no upstream wheels
      CIBW_SKIP: "pp* *-win32 cp38-musllinux* cp39-musllinux* *musllinux_aarch64*"
      CIBW_TEST_REQUIRES: pytest pytest-xdist
      CIBW_TEST_COMMAND: python -c "import statsmodels; statsmodels.test(['--skip-examples','--skip-slow','-n','2'], exit=True)"
      # Avoid testing on emulated architectures and Pyodide
      CIBW_TEST_SKIP: "*-*linux_{aarch64,ppc64le,s390x} *pyodide*"
      CIBW_REPAIR_WHEEL_COMMAND_LINUX: 'auditwheel repair --strip -w {dest_dir} {wheel}'
      CIBW_BUILD_VERBOSITY: 1
      MULTIBUILD_WHEELS_STAGING_ACCESS: ${{ secrets.MULTIBUILD_WHEELS_STAGING_ACCESS }}
      SCIENTIFIC_PYTHON_NIGHTLY_WHEELS: ${{ secrets.SCIENTIFIC_PYTHON_NIGHTLY_WHEELS }}
      MKL_NUM_THREADS: 1
      OMP_NUM_THREADS: 1
      OPENLAS_NUM_THREADS: 1

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

      - name: Set up QEMU
        if: runner.os == 'Linux'
        uses: docker/setup-qemu-action@v3
        with:
          platforms: all

      - name: Build wheels (Default)
        uses: pypa/cibuildwheel@v2.22
        if: (matrix.python_impl != 'Pyodide') && (matrix.os != 'macos-13')
        with:
          output-dir: wheelhouse
          package-dir: statsmodels
        env:
          CIBW_BEFORE_BUILD: 'git submodule foreach git checkout  ${{ env.BUILD_COMMIT }}'
          CIBW_ARCHS_MACOS: "arm64"

      - name: Build wheels (MacOS x86_64)
        if: matrix.os == 'macos-13'
        uses: pypa/cibuildwheel@v2.22
        with:
          output-dir: wheelhouse
          package-dir: statsmodels
        env:
          CIBW_BEFORE_BUILD: 'git submodule foreach git checkout  ${{ env.BUILD_COMMIT }}'
          CIBW_ARCHS_OSX: "x86_64"

      - name: Build Pyodide wheel
        if: matrix.python_impl == 'Pyodide'
        uses: pypa/cibuildwheel@v2.22
        with:
          output-dir: wheelhouse
          package-dir: statsmodels
        env:
          CIBW_BEFORE_BUILD: 'git submodule foreach git checkout  ${{ env.BUILD_COMMIT }}'
          CIBW_PLATFORM: pyodide

      - name: Setup Upload Variables
        if: ${{ always() }}
        shell: bash
        run: |
          if [ "schedule" == "${{ github.event_name }}" ] || [ "push" == "${{ github.event_name }}" ]; then
            echo "ANACONDA_UPLOAD=true" >> $GITHUB_ENV
          else
            echo "ANACONDA_UPLOAD=false" >> $GITHUB_ENV
          fi
          if [ "schedule" == "${{ github.event_name }}" ] || [ "main" == "$BUILD_COMMIT" ]; then
            echo "ANACONDA_ORG=scientific-python-nightly-wheels" >> $GITHUB_ENV
            echo "TOKEN=$SCIENTIFIC_PYTHON_NIGHTLY_WHEELS" >> $GITHUB_ENV
          else
            echo "ANACONDA_ORG=multibuild-wheels-staging" >> $GITHUB_ENV
            echo "TOKEN=$MULTIBUILD_WHEELS_STAGING_ACCESS" >> $GITHUB_ENV
          fi

      # Used to ensure python is available for wheel upload
      - uses: actions/setup-python@v5
        with:
          python-version: '3.x'

      - name: Upload wheels
        if: ${{ always() }}
        shell: bash
        run: |
          # trigger an upload to the shared ecosystem
          # infrastructure at: https://anaconda.org/scientific-python-nightly-wheels
          # for cron jobs only (restricted to main branch once
          # per week)
          # SCIENTIFIC_PYTHON_NIGHTLY_WHEELS is a secret token
          # used in Travis CI config, originally
          #
          # for merges (push events) we use the staging area instead;
          # MULTIBUILD_WHEELS_STAGING_ACCESS is a secret token used in Travis
          # CI config, originally generated at anaconda.org for
          # multibuild-wheels-staging
          # generated at anaconda.org for scientific-python-nightly-wheels
          echo ${PWD}
          if [ ${ANACONDA_UPLOAD} == true ]; then
            # main branches of these two packages
            python --version
            python -m pip install "cython<3"
            python -m pip list
            python -m pip install git+https://github.com/bashtage/clyent.git
            python -m pip install git+https://github.com/Anaconda-Server/anaconda-client.git
            python -m pip install "urllib3>=1.21.1,<2"
            ls ./wheelhouse/*.whl
            anaconda -t ${TOKEN} upload --force -u ${ANACONDA_ORG} ./wheelhouse/*.whl
            echo "PyPI-style index: https://pypi.anaconda.org/$ANACONDA_ORG/simple"
          fi