build_wheel.yml

name: Build wheels and release them into PYPI

on:
  release:
    types: [published]
  push:
    branches:
      - master
    paths:
      - VERSION
      - setup.py
      - mlperf_logging/**

jobs:
  build_wheels:
    if: github.repository_owner == 'mlcommons'
    name: Build wheel
    runs-on: ubuntu-latest
    environment: release

    permissions:
      id-token: write
      contents: write
  
    strategy:
      fail-fast: false
    steps:
      # Step 1: Checkout the code
      - uses: actions/checkout@v3
        with:
          ssh-key: ${{ secrets.DEPLOY_KEY }}
          fetch-depth: 2

      # Step 2: Set up Python
      - uses: actions/setup-python@v3

      # Step 3: Check if VERSION file has changed in this push
      - name: Check if VERSION file has changed
        id: version_changed
        run: |
          if git diff --name-only HEAD~1 | grep -q "VERSION"; then
            echo "version_changed=true" >> $GITHUB_ENV
            new_version=$(cat VERSION)
            echo "new_version=$new_version" >> $GITHUB_ENV
          else
            echo "VERSION file has NOT been modified"
            echo "version_changed=false" >> $GITHUB_ENV
          fi

      # Step 4: Increment version if VERSION was not changed
      - name: Increment version if necessary
        if: env.version_changed == 'false'
        run: |
          # Check if VERSION file exists, else initialize it
          if [ ! -f VERSION ]; then
            echo "0.0.0" > VERSION
          fi
          
          version=$(cat VERSION)
          IFS='.' read -r major minor patch <<< "$version"
          patch=$((patch + 1))
          new_version="$major.$minor.$patch"
          echo $new_version > VERSION
          echo "New version: $new_version"
          echo "new_version=$new_version" >> $GITHUB_ENV

      # Step 5: Commit the updated version to the repository
      - name: Commit updated version
        run: |
          git config --global user.name "${{ github.actor }}"
          git config --global user.email "${{ github.actor }}@users.noreply.github.com"
          git add VERSION
          git commit -m "Increment version to $new_version"
          git push

      # Step 6: Install required dependencies
      - name: Install requirements
        run: python3 -m pip install setuptools wheel

      # Step 7: Build the Python wheel
      - name: Build wheels
        run: python3 setup.py bdist_wheel

      # Step 8: Publish to PyPI
      - name: Publish to PyPI
        uses: pypa/gh-action-pypi-publish@release/v1
        with:
          verify-metadata: true
          skip-existing: true
          packages-dir: dist
          repository-url: https://upload.pypi.org/legacy/
          verbose: true