notify_test_workflow.yml

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# under the License.
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# Intentionally has a general name.
# because the test status check created in GitHub Actions
# currently randomly picks any associated workflow.
# So, the name was changed to make sense in that context too.
# See also https://github.community/t/specify-check-suite-when-creating-a-checkrun/118380/10
name: On pull request update
on:
  pull_request_target:
    types: [opened, reopened, synchronize]

jobs:
  notify:
    name: Notify test workflow
    runs-on: ubuntu-20.04
    permissions:
      actions: read
      checks: write
    steps:
      - name: "Notify test workflow"
        uses: actions/github-script@v6
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const endpoint = 'GET /repos/:owner/:repo/actions/workflows/:id/runs?&branch=:branch'
            const check_run_endpoint = 'GET /repos/:owner/:repo/commits/:ref/check-runs'

            // TODO: Should use pull_request.user and pull_request.user.repos_url?
            // If a different person creates a commit to another forked repo,
            // it wouldn't be able to detect.
            const params = {
              owner: context.payload.pull_request.head.repo.owner.login,
              repo: context.payload.pull_request.head.repo.name,
              id: 'build_main.yml',
              branch: context.payload.pull_request.head.ref,
            }
            const check_run_params = {
              owner: context.payload.pull_request.head.repo.owner.login,
              repo: context.payload.pull_request.head.repo.name,
              ref: context.payload.pull_request.head.ref,
            }

            console.log('Ref: ' + context.payload.pull_request.head.ref)
            console.log('SHA: ' + context.payload.pull_request.head.sha)

            // Wait 3 seconds to make sure the fork repository triggered a workflow.
            await new Promise(r => setTimeout(r, 3000))

            let runs
            try {
              runs = await github.request(endpoint, params)
            } catch (error) {
              console.error(error)
              // Assume that runs were not found.
            }

            const name = 'Build'
            const head_sha = context.payload.pull_request.head.sha
            let status = 'queued'

            if (!runs || runs.data.workflow_runs.length === 0) {
              status = 'completed'
              const conclusion = 'action_required'

              github.rest.checks.create({
                owner: context.repo.owner,
                repo: context.repo.repo,
                name: name,
                head_sha: head_sha,
                status: status,
                conclusion: conclusion,
                output: {
                  title: 'Workflow run detection failed',
                  summary: `
            Unable to detect the workflow run for testing the changes in your PR.

            1. If you did not enable GitHub Actions in your forked repository, please enable it by clicking the button as shown in the image below. See also [Disabling or limiting GitHub Actions for a repository](https://docs.github.com/en/github/administering-a-repository/disabling-or-limiting-github-actions-for-a-repository) for more details.
            2. It is possible your branch is based on the old \`master\` branch in Apache Spark, please sync your branch to the latest master branch. For example as below:
                \`\`\`bash
                git fetch upstream
                git rebase upstream/master
                git push origin YOUR_BRANCH --force
                \`\`\``,
                  images: [
                    {
                      alt: 'enabling workflows button',
                      image_url: 'https://raw.githubusercontent.com/apache/spark/master/.github/workflows/images/workflow-enable-button.png'
                    }
                  ]
                }
              })
            } else {
              const run_id = runs.data.workflow_runs[0].id

              if (runs.data.workflow_runs[0].head_sha != context.payload.pull_request.head.sha) {
                throw new Error('There was a new unsynced commit pushed. Please retrigger the workflow.');
              }

              // Here we get check run ID to provide Check run view instead of Actions view, see also SPARK-37879.
              const check_runs = await github.request(check_run_endpoint, check_run_params)
              const check_run_head = check_runs.data.check_runs.filter(r => r.name === "Run / Check changes")[0]

              if (check_run_head.head_sha != context.payload.pull_request.head.sha) {
                throw new Error('There was a new unsynced commit pushed. Please retrigger the workflow.');
              }

              const check_run_url = 'https://github.com/'
                + context.payload.pull_request.head.repo.full_name
                + '/runs/'
                + check_run_head.id

              const actions_url = 'https://github.com/'
                + context.payload.pull_request.head.repo.full_name
                + '/actions/runs/'
                + run_id

              github.rest.checks.create({
                owner: context.repo.owner,
                repo: context.repo.repo,
                name: name,
                head_sha: head_sha,
                status: status,
                output: {
                  title: 'Test results',
                  summary: '[See test results](' + check_run_url + ')',
                  text: JSON.stringify({
                    owner: context.payload.pull_request.head.repo.owner.login,
                    repo: context.payload.pull_request.head.repo.name,
                    run_id: run_id
                  })
                },
                details_url: actions_url,
              })
            }