sync-requirements.yml

name: Sync Requirements

on:
  pull_request:
    paths:
      - 'pyproject.toml'
      - 'uv.lock'
    types: [ opened, synchronize, reopened ]

jobs:
  sync-requirements:
    # Only run on Renovate PRs to avoid conflicts
    if: startsWith(github.head_ref, 'renovate/')
    runs-on: ubuntu-latest

    permissions:
      contents: write
      pull-requests: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v5
        with:
          # Use the head ref for PRs to commit back to the PR branch
          ref: ${{ github.head_ref }}
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Install uv
        uses: astral-sh/setup-uv@v6
        with:
          version: "latest"

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

      - name: Generate requirements.txt
        run: |
          echo "Generating requirements.txt from uv.lock..."
          uv export --no-hashes --frozen > requirements.txt
          
          # Check if requirements.txt was modified
          if git diff --quiet requirements.txt; then
            echo "requirements.txt is already up to date"
            echo "requirements_updated=false" >> $GITHUB_ENV
          else
            echo "requirements.txt has been updated"
            echo "requirements_updated=true" >> $GITHUB_ENV
          fi

      - name: Commit and push changes
        if: env.requirements_updated == 'true'
        run: |
          git config --local user.email "41898282+github-actions[bot]@users.noreply.github.com"
          git config --local user.name "github-actions[bot]"
          
          git add requirements.txt
          git commit -m "chore(deps): sync requirements.txt with uv.lock
          
          Auto-generated by GitHub Actions from uv export"
          
          git push

      - name: Comment on PR
        if: env.requirements_updated == 'true'
        uses: actions/github-script@v8
        with:
          script: |
            github.rest.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: ':white_check_mark: **requirements.txt updated**\n\nGenerated from `uv.lock` using `uv export --no-hashes --frozen > requirements.txt`'
            })