PR title update workflow

name: Update PR title

on:

  pull_request_target:

    types: [opened, edited]

    branches:

      - "release_**"

jobs:

  update-title:

    runs-on: ubuntu-latest

    permissions:

      pull-requests: write

    steps:

      - uses: actions/checkout@v4

      - name: Update PR title

        env:

          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

          PR_NUMBER: ${{ github.event.pull_request.number }}

          TARGET_BRANCH: "${{ github.base_ref }}"

          PR_TITLE: "${{ github.event.pull_request.title }}"

        run: |

          VERSION=$(echo $TARGET_BRANCH | grep -oP '\d+\.\d+')

          if [[ -n "$VERSION" && ! "$PR_TITLE" =~ ^\[$VERSION\] ]]; then

            NEW_TITLE="[$VERSION] $PR_TITLE"

            gh pr edit $PR_NUMBER --title "$NEW_TITLE"

          fi