pull-requests.yml

name: Pull Requests

# Credit: https://github.com/github/docs/blob/main/.github/workflows/notify-when-maintainers-cannot-edit.yaml
#         https://github.com/laravel/.github/blob/main/.github/workflows/pull-requests.yml

on:
  pull_request_target:
    types:
      - opened

permissions:
  pull-requests: write

jobs:
  uneditable:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/github-script@v6
        with:
          script: |
            const repo = context.repo.repo;

            const query = `
              query($number: Int!) {
                repository(owner: "statamic", name: "${repo}") {
                  pullRequest(number: $number) {
                    headRepositoryOwner {
                      login
                    }
                    maintainerCanModify
                    state
                  }
                }
              }
            `;

            const pullNumber = context.issue.number;
            const variables = { number: pullNumber };

            try {
              console.log(`Check for maintainer edit access ...`);
              const result = await github.graphql(query, variables);
              console.log(JSON.stringify(result, null, 2));
              const pullRequest = result.repository.pullRequest;

              if (pullRequest.headRepositoryOwner.login === 'statamic') {
                console.log('PR owned by statamic');
                return;
              }

              if (pullRequest.state !== 'OPEN') {
                 console.log('PR has already been closed or merged');
                 return;
              }

              if (!pullRequest.maintainerCanModify) {
                console.log('PR not owned by statamic and does not have maintainer edits enabled');

                await github.rest.issues.createComment({
                  issue_number: pullNumber,
                  owner: 'statamic',
                  repo,
                  body: "Thanks for submitting a PR!\n\nIn order to review and merge PRs most efficiently, we require that all PRs grant maintainer edit access before we review them. For information on how to do this, [see the relevant GitHub documentation](https://docs.github.com/en/github/collaborating-with-pull-requests/working-with-forks/allowing-changes-to-a-pull-request-branch-created-from-a-fork). Additionally, GitHub doesn't allow maintainer permissions from organization accounts. Please resubmit this PR from a personal GitHub account with maintainer permissions enabled."
                });

                await github.rest.pulls.update({
                  pull_number: pullNumber,
                  owner: 'statamic',
                  repo,
                  state: 'closed'
                });
              }
            } catch(e) {
              console.log(e);
            }