follow-merge-sync-pr-lso.yml

name: 'Follow Merge: Sync PR LSO'

on:
  pull_request_target:
    types:
      - opened
      - closed
      - converted_to_draft
      - ready_for_review
      - synchronize
    branches:
      - master
      - 'ls-release/**'

concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref }}

env:
  DOWNSTREAM_REPOSITORY: "label-studio"
  DOWNSTREAM_EVENT_TYPE: "upstream_repo_update"

jobs:
  sync:
    name: "Sync"
    if: startsWith(github.head_ref, 'fb-')
    runs-on: ubuntu-latest
    steps:
      - uses: hmarr/debug-action@v3.0.0

      - name: Sync PR
        uses: actions/github-script@v7
        id: sync-pr
        env:
          TITLE: ${{ github.event.pull_request.title }}
          HEAD_REF: ${{ github.head_ref }}
          BASE_REF: ${{ github.base_ref }}
          PR_HEAD_REPOSITORY: ${{ github.event.pull_request.head.repo.full_name || github.repository }}
          DOWNSTREAM_REPOSITORY: ${{ env.DOWNSTREAM_REPOSITORY }}
          DOWNSTREAM_EVENT_TYPE: ${{ env.DOWNSTREAM_EVENT_TYPE }}
        with:
          github-token: ${{ secrets.GIT_PAT }}
          script: |
            const { repo, owner } = context.repo;
            const pr_head_repository = process.env.PR_HEAD_REPOSITORY;
            const downstream_repository = process.env.DOWNSTREAM_REPOSITORY;
            const downstream_event_type = process.env.DOWNSTREAM_EVENT_TYPE;
            const [pr_owner, pr_repo] = pr_head_repository.split('/');
            const head_ref = process.env.HEAD_REF;
            const base_ref = process.env.BASE_REF;
            let event_action = '${{ github.event.action }}';
            let commit_sha = '${{ github.event.pull_request.head.sha }}';
            if (${{ github.event.pull_request.merged }}) {
              event_action = 'merged';
              commit_sha = '${{ github.sha }}';
            }
            const getCommitResponse = await github.rest.repos.getCommit({
              owner: pr_owner,
              repo: pr_repo,
              ref: commit_sha
            });
            const result = await github.rest.repos.createDispatchEvent({
              owner: owner,
              repo: downstream_repository,
              event_type: downstream_event_type,
              client_payload: {
                branch_name: head_ref,
                base_branch_name: base_ref,
                repo_name: '${{ github.repository }}',
                commit_sha : commit_sha,
                title: process.env.TITLE,
                html_url: '${{ github.event.pull_request.html_url }}',
                actor: '${{ github.actor }}',
                author_username: getCommitResponse.data.commit.author.name,
                author_email: getCommitResponse.data.commit.author.email,
                event_action: event_action
              }
            });
            return result