publish.yaml

name: Publish to PyPI

on:
  push:
    branches:
      - main

jobs:
  publish:
    # Only run if ENABLE_AUTO_PUBLISH_TO_PYPI is 'true'
    if: ${{ vars.ENABLE_AUTO_PUBLISH_TO_PYPI == 'true' }}
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0  # We need full history to diff versions

      - name: Install uv
        uses: astral-sh/setup-uv@v5
        with:
          version: "0.6.10"

      - name: "Set up Python"
        uses: actions/setup-python@v5
        with:
          python-version-file: ".python-version"

      - name: Install dependencies
        run: uv pip install --group dev
        env:
          UV_SYSTEM_PYTHON: 1

      - name: Get previous commit on main
        id: prev
        run: |
          echo "PREV_COMMIT=$(git rev-parse HEAD^1)" >> $GITHUB_OUTPUT

      - name: Get previous version
        id: old_version
        run: |
          git show ${{ steps.prev.outputs.PREV_COMMIT }}:pyproject.toml | grep '^version' | cut -d'"' -f2 > old_version.txt
          echo "OLD_VERSION=$(cat old_version.txt)" >> $GITHUB_OUTPUT

      - name: Get current version
        id: new_version
        run: |
          grep '^version' pyproject.toml | cut -d'"' -f2 > new_version.txt
          echo "NEW_VERSION=$(cat new_version.txt)" >> $GITHUB_OUTPUT

      - name: Check version bump
        id: version_check
        run: |
          if [ "${{ steps.old_version.outputs.OLD_VERSION }}" != "${{ steps.new_version.outputs.NEW_VERSION }}" ]; then
            echo "VERSION_CHANGED=true" >> $GITHUB_OUTPUT
          else
            echo "VERSION_CHANGED=false" >> $GITHUB_OUTPUT
          fi

      - name: Build package
        run: uv build

      - name: Publish to PyPI
        if: steps.version_check.outputs.VERSION_CHANGED == 'true'
        run: uv publish --token ${{ secrets.PYPI_API_TOKEN }}

      - name: Create Tag and Release
        if: steps.version_check.outputs.VERSION_CHANGED == 'true'
        uses: softprops/action-gh-release@v1
        with:
          tag_name: v${{ steps.new_version.outputs.NEW_VERSION }}
          name: Release v${{ steps.new_version.outputs.NEW_VERSION }}
          generate_release_notes: true