backport.yml

name: backport pr

on:
  pull_request:
    types: [closed]
  issue_comment:
    types: [created]

jobs:
  backport:
    if: |
      (
        github.event_name == 'pull_request' &&
        github.event.pull_request.merged
      ) || (
        github.event_name == 'issue_comment' &&
        github.event.issue.pull_request &&
        startsWith(github.event.comment.body, '/backport')
      )
    runs-on: ubuntu-22.04
    permissions:
      contents: write
      pull-requests: write
    steps:
      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
      - name: Create backport PRs
        uses: korthout/backport-action@e8161d6a0dbfa2651b7daa76cbb75bc7c925bbf3 # v2.4.1
        with:
          copy_milestone: true
          copy_labels_pattern: 'changelog'
          pull_title: '[${target_branch}] ${pull_title}'
          github_token: ${{ secrets.NUNKI_CI_COMMIT_PUSH_PR }}
          experimental: |
            {
              "detect_merge_method": true
            }
          pull_description: |
            Backport of #${pull_number} to `${target_branch}`.

            Original description:

            ---

            ${pull_description}