generate-pr-description.yml

name: Auto PR Description

on:
  pull_request:
    types: [opened, edited]

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
  cancel-in-progress: true

jobs:
  auto-describe:
    runs-on: ubuntu-latest
    if: github.event.pull_request.draft == false
    permissions:
      contents: read
      pull-requests: write
      issues: write
    steps:
      - name: Checkout code
        uses: actions/checkout@v4.1.1

      - name: Set up Python
        uses: actions/setup-python@v5.0.0
        with:
          python-version: '3.11'

      - name: Install dependencies
        run: |
          curl -LsSf https://astral.sh/uv/install.sh | sh
          source $HOME/.cargo/env
          uv pip install --system requests openai

      - name: Check for previous successful run
        id: check_comment
        run: |
          PR_NUMBER="${{ github.event.pull_request.number }}"
          COMMENT=$(gh api -X GET "/repos/${{ github.repository }}/issues/${PR_NUMBER}/comments" | jq '.[] | select(.body | contains("Auto PR description generated successfully")) | .id')
          if [ -n "$COMMENT" ]; then
            echo "Workflow has already run successfully for this PR."
            echo "skip=true" >> $GITHUB_OUTPUT
          else
            echo "skip=false" >> $GITHUB_OUTPUT
          fi
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Wait for potential edits
        if: steps.check_comment.outputs.skip == 'false'
        run: sleep 60  # Wait for 1 min

      - name: Generate PR description
        if: steps.check_comment.outputs.skip == 'false'
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
        run: python scripts/generate_pr_description.py

      - name: Add success comment
        if: steps.check_comment.outputs.skip == 'false'
        run: |
          PR_NUMBER="${{ github.event.pull_request.number }}"
          gh issue comment ${PR_NUMBER} --body "Auto PR description generated successfully"
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Check for errors
        if: failure()
        run: |
          echo "The PR description generation failed. Please check the logs for more information."