.github/workflows/build_package.yml

# Builds packages for native (non cross-compiled) targets on supported
# platforms.
#
# For these mainline distributions, we use cibuildwheel and drive the
# packaging through python, extracting native assets. While this may seem
# hopelessly round-about, it lets us leverage a lot of what cibuildwheel
# does for free and get python packages to boot.
name: Build Native Release Packages

on:
  workflow_dispatch:
    inputs:
      package_suffix:
        description: 'Suffix to append to package names'
        required: true
        default: '-cidev'
      package_version:
        description: 'Version of the package'
        required: true
        default: '0.1a1'
      release_id:
        description: 'Release id to upload artifacts to'
        default: ''

jobs:
  build_core:
    name: "${{ matrix.os }} :: Build ${{ matrix.python_package }} Package"
    runs-on: ${{ matrix.os }}
    continue-on-error: ${{ matrix.experimental }}
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-18.04]
        python_package: [compiler, runtime]
        experimental: [false]
        # include:
        #   - os: macos-latest
        #     experimental: true
        #   - os: windows-2019
        #     experimental: true

    env:
      CIBW_BUILD_VERBOSITY: 1
      # Note that on Linux, we run under docker with an altered path.
      CIBW_ENVIRONMENT_LINUX: "REPO_DIR=/project/main_checkout"
      CIBW_ENVIRONMENT_MACOS: "REPO_DIR=${{ github.workspace }}/main_checkout"
      CIBW_ENVIRONMENT_WINDOWS: "REPO_DIR='${{ github.workspace }}\\main_checkout'"

      CIBW_MANYLINUX_X86_64_IMAGE: manylinux2014
      CIBW_BUILD: "cp36-* cp37-* cp38-* cp39-*"
      CIBW_SKIP: "*-win32 *-manylinux_i686"

    steps:
      - uses: actions/checkout@v2
        with:
          path: 'main_checkout'
          submodules: true

      - uses: actions/setup-python@v2
        name: Install Python
        with:
          python-version: '3.8'

      - name: Write version info
        shell: bash
        run: |
          cat << EOF > ./main_checkout/version_info.json
          {
            "package-suffix": "${{ github.event.inputs.package_suffix }}",
            "package-version": "${{ github.event.inputs.package_version }}",
            "iree-revision": "$(cd ./main_checkout && git rev-parse HEAD)"
          }
          EOF
          cat ./main_checkout/version_info.json

      - name: Install cibuildwheel
        shell: bash
        run: |
          python -m pip install cibuildwheel==1.7.2

      # Compiler wheels are not python version specific, so we just shard and
      # build once for an examplar version of python. This could save a bit of
      # time by not building IREE's runtime, but it is small compared to
      # the compiler build.
      - name: Build compiler wheels
        if: "contains(matrix.python_package, 'compiler')"
        shell: bash
        run: |
          # Just need to build for one examplar python3 variant.
          export CIBW_BUILD="cp38-*"
          package_dir="./install-iree/python_packages/iree_compiler"
          export CIBW_BEFORE_BUILD="rm -f ./build-iree/CMakeCache.txt && \
            rm -Rf ./install-iree && \
            python ./main_checkout/build_tools/cmake/cmake_configure_ci.py \
            -B./iree-build -DCMAKE_INSTALL_PREFIX=./iree-install \
            -DCMAKE_BUILD_TYPE=Release \
            -DIREE_BUILD_COMPILER=ON \
            -DIREE_BUILD_PYTHON_BINDINGS=ON \
            -DIREE_BUILD_SAMPLES=OFF && \
            cmake --build ./iree-build --target install/strip"
          # TODO: cibuildwheel sanity checks this, but our setup.py is the
          # *output* of the build :( File a bug.
          mkdir -p $package_dir && touch $package_dir/setup.py
          python -m cibuildwheel --output-dir wheelhouse $package_dir

      # Runtime wheels are version specific, so we build one for each python
      # version. We do this serially by deleting the CMakeCache and install
      # directory between runs. Most of the build will be incremental.
      # We save a little bit of time by disabling the compiler build.
      - name: Build runtime wheels
        if: "contains(matrix.python_package, 'runtime')"
        shell: bash
        run: |
          # Just need to build for one examplar python3 variant.
          package_dir="./install-iree/python_packages/iree_rt"
          export CIBW_BEFORE_BUILD="rm -f ./build-iree/CMakeCache.txt && \
            rm -Rf ./install-iree && \
            python ./main_checkout/build_tools/cmake/cmake_configure_ci.py \
            -B./iree-build -DCMAKE_INSTALL_PREFIX=./iree-install \
            -DCMAKE_BUILD_TYPE=Release \
            -DIREE_BUILD_COMPILER=OFF \
            -DIREE_BUILD_PYTHON_BINDINGS=ON \
            -DIREE_BUILD_SAMPLES=OFF && \
            cmake --build ./iree-build --target install/strip"
          # TODO: cibuildwheel sanity checks this, but our setup.py is the
          # *output* of the build :( File a bug.
          mkdir -p $package_dir && touch $package_dir/setup.py
          python -m cibuildwheel --output-dir wheelhouse $package_dir

      - uses: actions/upload-artifact@v2
        with:
          path: ./wheelhouse/*.whl
          retention-days: 5

      - name: Upload Release Assets
        if: github.event.inputs.release_id != ''
        id: upload-release-assets
        uses: dwenegar/upload-release-assets@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_WRITE_ACCESS_TOKEN }}
        with:
          release_id: ${{ github.event.inputs.release_id }}
          assets_path: ./wheelhouse/*.whl