main.yml

name: Build

on:
  push:
    branches:
      - master
      - devel
    tags:
      - '[0-9]+.[0-9]+.[0-9]+'
      - '[0-9]+.[0-9]+.[0-9]+a[0-9]+'
  pull_request:
    branches:
      - master
      - devel
  schedule:
    # https://crontab.guru/#0_8_*_*_1
    - cron: '0 8 * * 1'

jobs:
  build_wheels:
    name: Build wheels on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        # windows is tested on azure for now
        os: [ubuntu-20.04, windows-2019, macos-11]
    steps:
      - uses: actions/checkout@v4

      - name: Install SWIG
        if: runner.os == 'Windows'
        run: choco install swig -f -y

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

      - name: Get versions
        id: version
        run: |
          python -m pip install requests
          echo "::set-output name=glpk_version::$(python scripts/find_newest_glpk_release.py)"
          echo "::set-output name=swigplk_version::$(python scripts/find_swiglpk_version.py)"

      - name: Build wheels
        uses: joerick/cibuildwheel@v2.16.5
        env:
          NEW_GLPK_VERSION: ${{ steps.version.outputs.glpk_version }}
          GLPK_HEADER_PATH: glpk-${{ steps.version.outputs.glpk_version }}/src
          CIBW_ENVIRONMENT_LINUX: GLPK_HEADER_PATH=/include
          CIBW_ENVIRONMENT_MACOS: PATH=$PATH:/usr/local/bin LDFLAGS="-L/usr/local/lib $LDFLAGS" LD_LIBRARY_PATH="/usr/local/lib"
          # install swig before build in each python environment
          # each job runs a python environment so this is equivalent to CIBW_BEFORE_ALL
          CIBW_BEFORE_BUILD_LINUX: source {project}/config.sh && pre_build
          CIBW_BEFORE_BUILD_MACOS: source {project}/config.sh && IS_OSX=true pre_build
          CIBW_BEFORE_BUILD_WINDOWS: rm -rf glpk_build && python scripts/build_glpk.py
          CIBW_ARCHS_MACOS: "arm64 x86_64"
          CIBW_ARCHS_LINUX: "auto aarch64"
          CIBW_SKIP: pp*-win* *-musllinux* cp36-* cp37-* pp*-*_aarch64 pp37* pp38*
          # install before tests
          CIBW_TEST_COMMAND: cp {project}/test_swiglpk.py . && python test_swiglpk.py
          CIBW_TEST_SKIP: "*_arm64"

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

  build_sdist:
    name: Build the source distribution
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-python@v5
        with:
          python-version: '3.11'

      - name: Get GLPK version
        id: version
        run: |
          python -m pip install requests
          echo "::set-output name=glpk_version::$(python scripts/find_newest_glpk_release.py)"

      - name: Install systems dependencies
        run: sudo apt install libgmp-dev swig wget

      - name: Download and unpack GLPK
        env:
          NEW_GLPK_VERSION: ${{ steps.version.outputs.glpk_version }}
        run: |
          wget "http://ftp.gnu.org/gnu/glpk/glpk-$NEW_GLPK_VERSION.tar.gz"
          tar -xf glpk-$NEW_GLPK_VERSION.tar.gz

      - name: Build source distribution
        env:
          NEW_GLPK_VERSION: ${{ steps.version.outputs.glpk_version}}
        run: GLPK_HEADER_PATH=glpk-$NEW_GLPK_VERSION/src python setup.py sdist --dist-dir=./wheelhouse

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

  deploy:
    name: Release to Github and deploy to PyPI
    needs: [build_wheels, build_sdist]
    runs-on: ubuntu-latest
    if: startsWith(github.ref, 'refs/tags')
    # alternatively, to publish when a GitHub Release is created, use the following rule:
    # if: github.event_name == 'release' && github.event.action == 'published'
    steps:
    - uses: actions/checkout@v4

    - name: Set up Python
      uses: actions/setup-python@v5
      with:
        python-version: 3.9

    - name: Get versions
      id: version
      run: |
        python -m pip install requests
        echo "::set-output name=glpk_version::$(python scripts/find_newest_glpk_release.py)"
        echo "::set-output name=swigplk_version::$(python scripts/find_swiglpk_version.py)"

    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip setuptools wheel
        python -m pip install twine
    - uses: actions/download-artifact@v4
      with:
        name: wheels
        path: wheelhouse
    - uses: actions/download-artifact@v4
      with:
        name: sdist
        path: wheelhouse

    - name: Publish to PyPI
      env:
        TWINE_USERNAME: ${{ secrets.PYPI_USERNAME }}
        TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
      run:
        twine upload --skip-existing --non-interactive ./wheelhouse/*

    - name: Create GitHub release
      uses: actions/create-release@v1
      if: steps.version.outputs.glpk_version != steps.version.outputs.swigplk_version
      env:
        # This token is set by gh actions
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
        tag_name: ${{ github.ref }}
        release_name: ${{ github.ref }}
        body_path: "Release of version ${{ steps.version.glpk_version }}"
        draft: false
        prerelease: false