docs/.github/workflows/close-external-repo-sync-prs.yml

name: Check for External Repo Sync PR

on:
  pull_request:
    types:
      - opened
      - reopened
    branches:
      - main

jobs:
  invalid-repo-sync-check:
    name: Close external Repo Sync PRs
    if: ${{ github.repository == 'github/docs' && github.ref == 'refs/heads/repo-sync' }}
    runs-on: ubuntu-latest
    steps:
      - uses: actions/github-script@626af12fe9a53dc2972b48385e7fe7dec79145c9
        with:
          github-token: ${{ secrets.DOCUBOT_FR_PROJECT_BOARD_WORKFLOWS_REPO_ORG_READ_SCOPES }}
          script: |

            const prCreator = context.payload.sender.login

            // If the PR creator is the expected account, stop now
            if (prCreator === 'Octomerger') {
              return
            }

            try {
              await github.teams.getMembershipForUserInOrg({
                org: 'github',
                team_slug: 'employees',
                username: prCreator
              })

              // If the PR creator is a GitHub employee, stop now
              return
            } catch (err) {
              // An error will be thrown if the user is not a GitHub employee.
              // That said, we still want to proceed anyway!
            }

            const pr = context.payload.pull_request
            const { owner, repo } = context.repo

            // Close the PR and add the invalid label
            await github.issues.update({
              owner: owner,
              repo: repo,
              issue_number: pr.number,
              labels: ['invalid'],
              state: 'closed'
            })

            // Comment on the PR
            await github.issues.createComment({
              owner: owner,
              repo: repo,
              issue_number: pr.number,
              body: "Please leave this `repo-sync` branch to the robots!\n\nI'm going to close this pull request now, but feel free to open a new issue or ask any questions in [discussions](https://github.com/github/docs/discussions)!"
            })