# 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.build_package }} Package"
    runs-on: ${{ matrix.os }}
    continue-on-error: ${{ matrix.experimental }}
    strategy:
      fail-fast: false
      matrix:
        include:
          # Ubuntu packages.
          - os: ubuntu-18.04
            build_package: main-dist-linux
            experimental: false
          - os: ubuntu-18.04
            build_package: py-compiler-pkg
            experimental: false
          - os: ubuntu-18.04
            build_package: py-runtime-pkg
            experimental: false
          - os: ubuntu-18.04
            build_package: py-xla-compiler-tools-pkg
            experimental: false
          - os: ubuntu-18.04
            build_package: py-tflite-compiler-tools-pkg
            experimental: false
          - os: ubuntu-18.04
            build_package: py-tf-compiler-tools-pkg
            experimental: false
          # Only needs to be built on Linux because platform independent.
          - os: ubuntu-18.04
            build_package: py-pure-pkgs
            experimental: false

          # Windows packages.
          - os: windows-2019
            build_package: py-compiler-pkg
            experimental: false
          - os: windows-2019
            build_package: py-runtime-pkg
            experimental: false

          # Macos packages.
          - os: macos-latest
            build_package: py-compiler-pkg
            experimental: true
          - os: macos-latest
            build_package: py-runtime-pkg
            experimental: true
    env:
      CIBW_BUILD_VERBOSITY: 1

      # TODO: in-tree-build can be removed once pip 21.3 is released.
      # Note that on Linux, we run under docker with an altered path.
      # Note that on Windows, we need to configure the compiler api project to
      # but its CMake build directory on a short path to avoid path overflow.
      CIBW_ENVIRONMENT_LINUX: "REPO_DIR=/project/main_checkout BINDIST_DIR=/output CMAKE_GENERATOR=Ninja"
      CIBW_ENVIRONMENT_MACOS: "REPO_DIR=${{ github.workspace }}/main_checkout CMAKE_GENERATOR=Ninja"
      CIBW_ENVIRONMENT_WINDOWS: "REPO_DIR='${{ github.workspace }}\\main_checkout' CMAKE_GENERATOR=Ninja IREE_COMPILER_API_CMAKE_BUILD_DIR=D:/b"

      # Needs the bazel manylinux image.
      # TODO: Move this to our repo and pin.
      CIBW_MANYLINUX_X86_64_IMAGE: stellaraccident/manylinux2014_x86_64-bazel-3.7.2:latest
      # CIBW_MANYLINUX_X86_64_IMAGE: manylinux2014

      CIBW_BUILD: "cp37-* cp38-* cp39-*"
      CIBW_SKIP: "*-win32 *-manylinux_i686"

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

      # Make sure we have a system python before setting up the dev path.
      - uses: actions/setup-python@v2
        name: Install Python
        with:
          python-version: '3.8'

      # It is 2021. And the Windows Path is still a mess.
      - name: Set up visual studio environment
        if: "contains(matrix.os, 'windows')"
        shell: powershell
        run: |
          ${{ github.workspace }}\main_checkout\build_tools\github_actions\configure_dev_environment.ps1 -bashExePath C:\msys64\usr\bin\bash.exe
      - name: Report windows environment
        if: "contains(matrix.os, 'windows')"
        shell: bash
        run: |
          # Should display either an msys mount table or an "install from the windows store" banner
          echo "--- System path:"
          echo "$PATH"
          echo "--- Result of asking bash to run 'mount' (should show msys mounts):"
          mount

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

      - 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

      # The main distribution consists of the project being built, installed
      # and archived. We have to split it per operating system, and Linux
      # is special because we build under a manylinux container which gives
      # broad compatibility. We use the Python based manylinux containers
      # since they come packaged with all dev tools we need. Note that the
      # manylinux containers have a default python 2.x with all supported
      # python versions under /opt/python (need to add one to the path). It
      # is not enough to just invoke it directly because then pip managed
      # console scripts (like cmake, ninja) will not be on the path.
      - name: Main distribution (Linux)
        if: "matrix.build_package == 'main-dist-linux'"
        shell: bash
        run: |
          docker run --rm -w=/work \
            -v $PWD:/work \
            "${CIBW_MANYLINUX_X86_64_IMAGE}" \
            bash -c 'export PATH=/opt/python/cp39-cp39/bin:$PATH; python ./main_checkout/build_tools/github_actions/build_dist.py main-dist'

      # 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 lot of time by disabling the compiler build.
      - name: Build runtime wheels
        if: "matrix.build_package == 'py-runtime-pkg'"
        shell: bash
        run: |
          package_dir="./iree-install/python_packages/iree_runtime"
          export CIBW_BEFORE_BUILD="python ./main_checkout/build_tools/github_actions/build_dist.py py-runtime-pkg"
          # TODO: cibuildwheel sanity checks this, but our setup.py is the
          # *output* of the build :( Make source packages.
          mkdir -p $package_dir && touch $package_dir/setup.py
          python -m cibuildwheel --output-dir bindist $package_dir

      # Experimental iree.compiler package.
      - name: Build compiler wheels
        if: "matrix.build_package == 'py-compiler-pkg'"
        shell: bash
        run: |
          # Need a newer pip to use in-tree-build. *but* the old default pip
          # can't accept the in-tree-build feature while upgrading itself.
          # Facepalm. Since there is no way to customize CIBW, we just manually
          # install a pre-release build of 21.3, in which the in-tree-build
          # feature is enabled by default, obviating the need to configure it.
          # After the 2021 October release, this can just be changed to install
          # pip >= 21.3 from official sources. I'm sorry about this folks.
          export CIBW_BEFORE_BUILD="python -m pip install --upgrade pip==21.3dev0 -f https://github.com/stellaraccident/pip/releases/tag/21.3dev20210925"
          python -m cibuildwheel --output-dir bindist ./main_checkout/llvm-external-projects/iree-compiler-api

      # Pure python packages only need to do a minimal CMake configure and no
      # actual building, aside from setting up sources. If there are multiples,
      # it is fairly cheap to build them serially. Using cibuildwheel is a bit
      # overkill for this, but we keep it the same as the others for maintenance
      # value.
      - name: Build pure python wheels
        if: "matrix.build_package == 'py-pure-pkgs'"
        shell: bash
        run: |
          python ./main_checkout/build_tools/github_actions/build_dist.py py-pure-pkgs
          python -m pip wheel -w bindist --no-deps ./iree-install/python_packages/iree_jax

      # Compiler tools wheels are not python version specific, so just build
      # for one examplar python version.
      - name: Build XLA Compiler Tools wheels
        if: "matrix.build_package == 'py-xla-compiler-tools-pkg'"
        shell: bash
        run: |
          # Just need to build for one examplar python3 variant.
          export CIBW_BUILD="cp38-*"
          package_dir="./iree-install/python_packages/iree_tools_xla"
          export CIBW_BEFORE_BUILD="python ./main_checkout/build_tools/github_actions/build_dist.py py-xla-compiler-tools-pkg"
          # TODO: cibuildwheel sanity checks this, but our setup.py is the
          # *output* of the build :( Make source packages.
          mkdir -p $package_dir && touch $package_dir/setup.py
          python -m cibuildwheel --output-dir bindist $package_dir

      # Compiler tools wheels are not python version specific, so just build
      # for one examplar python version.
      - name: Build TFLite Compiler Tools wheels
        if: "matrix.build_package == 'py-tflite-compiler-tools-pkg'"
        shell: bash
        run: |
          # Just need to build for one examplar python3 variant.
          export CIBW_BUILD="cp38-*"

          package_dir="./iree-install/python_packages/iree_tools_tflite"
          export CIBW_BEFORE_BUILD="python ./main_checkout/build_tools/github_actions/build_dist.py py-tflite-compiler-tools-pkg"
          # TODO: cibuildwheel sanity checks this, but our setup.py is the
          # *output* of the build :( Make source packages.
          mkdir -p $package_dir && touch $package_dir/setup.py
          python -m cibuildwheel --output-dir bindist $package_dir

      # Compiler tools wheels are not python version specific, so just build
      # for one examplar python version.
      - name: Build TF Compiler Tools wheels
        if: "matrix.build_package == 'py-tf-compiler-tools-pkg'"
        shell: bash
        run: |
          # Just need to build for one examplar python3 variant.
          export CIBW_BUILD="cp38-*"

          package_dir="./iree-install/python_packages/iree_tools_tf"
          export CIBW_BEFORE_BUILD="python ./main_checkout/build_tools/github_actions/build_dist.py py-tf-compiler-tools-pkg"
          # TODO: cibuildwheel sanity checks this, but our setup.py is the
          # *output* of the build :( Make source packages.
          mkdir -p $package_dir && touch $package_dir/setup.py
          python -m cibuildwheel --output-dir bindist $package_dir

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

      # TODO: Upload the tar.bz2 files too when ready
      - name: Upload Release Assets
        if: github.event.inputs.release_id != ''
        id: upload-release-assets
        uses: dwenegar/upload-release-assets@v1
        env:
          GITHUB_TOKEN: ${{ secrets.WRITE_ACCESS_TOKEN }}
        with:
          release_id: ${{ github.event.inputs.release_id }}
          assets_path: ./bindist/*

  validate_and_publish:
    name: "Invoke workflow to validate and publish release"
    needs: build_core
    runs-on: ubuntu-18.04
    steps:
      - name: "Invoke workflow :: Validate and Publish Release"
        uses: benc-uk/workflow-dispatch@v1
        with:
          workflow: Validate and Publish Release
          token: ${{ secrets.WRITE_ACCESS_TOKEN }}
          ref: "${{ env.tag_name }}"
          inputs: '{"release_id": "${{ github.event.inputs.release_id }}", "package_version": "${{ github.event.inputs.package_version }}", "build_run_id": "${{ github.run_id }}"}'