Restart Preempted Libc++ Workflow #154
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| name: Restart Preempted Libc++ Workflow | |
| # The libc++ builders run on preemptable VMs, which can be shutdown at any time. | |
| # This workflow identifies when a workflow run was canceled due to the VM being preempted, | |
| # and restarts the workflow run. | |
| # We identify a canceled workflow run by checking the annotations of the check runs in the check suite, | |
| # which should contain the message "The runner has received a shutdown signal." | |
| # Note: If a job is both preempted and also contains a non-preemption failure, we do not restart the workflow. | |
| on: | |
| workflow_run: | |
| workflows: [Build and Test libc\+\+] | |
| types: | |
| - completed | |
| permissions: | |
| contents: read | |
| jobs: | |
| restart: | |
| if: github.repository_owner == 'llvm' && (github.event.workflow_run.conclusion == 'failure' || github.event.workflow_run.conclusion == 'cancelled') | |
| name: "Restart Job" | |
| permissions: | |
| statuses: read | |
| checks: write | |
| actions: write | |
| runs-on: ubuntu-latest | |
| steps: | |
| - name: "Restart Job" | |
| uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea #v7.0.1 | |
| with: | |
| script: | | |
| const failure_regex = /Process completed with exit code 1./ | |
| const preemption_regex = /The runner has received a shutdown signal/ | |
| const wf_run = context.payload.workflow_run | |
| core.notice(`Running on "${wf_run.display_title}" by @${wf_run.actor.login} (event: ${wf_run.event})\nWorkflow run URL: ${wf_run.html_url}`) | |
| async function create_check_run(conclusion, message) { | |
| // Create a check run on the given workflow run to indicate if | |
| // we are restarting the workflow or not. | |
| if (conclusion != 'success' && conclusion != 'skipped' && conclusion != 'neutral') { | |
| core.setFailed('Invalid conclusion: ' + conclusion) | |
| } | |
| await github.rest.checks.create({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| name: 'Restart Preempted Job', | |
| head_sha: wf_run.head_sha, | |
| status: 'completed', | |
| conclusion: conclusion, | |
| output: { | |
| title: 'Restarted Preempted Job', | |
| summary: message | |
| } | |
| }) | |
| } | |
| console.log('Listing check runs for suite') | |
| const check_suites = await github.rest.checks.listForSuite({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| check_suite_id: context.payload.workflow_run.check_suite_id, | |
| per_page: 100 // FIXME: We don't have 100 check runs yet, but we should handle this better. | |
| }) | |
| check_run_ids = []; | |
| for (check_run of check_suites.data.check_runs) { | |
| console.log('Checking check run: ' + check_run.id); | |
| if (check_run.status != 'completed') { | |
| console.log('Check run was not completed. Skipping.'); | |
| continue; | |
| } | |
| if (check_run.conclusion != 'failure' && check_run.conclusion != 'cancelled') { | |
| console.log('Check run had conclusion: ' + check_run.conclusion + '. Skipping.'); | |
| continue; | |
| } | |
| check_run_ids.push(check_run.id); | |
| } | |
| has_preempted_job = false; | |
| for (check_run_id of check_run_ids) { | |
| console.log('Listing annotations for check run: ' + check_run_id); | |
| annotations = await github.rest.checks.listAnnotations({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| check_run_id: check_run_id | |
| }) | |
| for (annotation of annotations.data) { | |
| if (annotation.annotation_level != 'failure') { | |
| continue; | |
| } | |
| const preemption_match = annotation.message.match(preemption_regex); | |
| if (preemption_match != null) { | |
| console.log('Found preemption message: ' + annotation.message); | |
| has_preempted_job = true; | |
| } | |
| const failure_match = annotation.message.match(failure_regex); | |
| if (failure_match != null) { | |
| // We only want to restart the workflow if all of the failures were due to preemption. | |
| // We don't want to restart the workflow if there were other failures. | |
| core.notice('Choosing not to rerun workflow because we found a non-preemption failure' + | |
| 'Failure message: "' + annotation.message + '"'); | |
| await create_check_run('skipped', 'Choosing not to rerun workflow because we found a non-preemption failure\n' | |
| + 'Failure message: ' + annotation.message) | |
| return; | |
| } | |
| } | |
| } | |
| if (!has_preempted_job) { | |
| core.notice('No preempted jobs found. Not restarting workflow.'); | |
| await create_check_run('neutral', 'No preempted jobs found. Not restarting workflow.') | |
| return; | |
| } | |
| core.notice("Restarted workflow: " + context.payload.workflow_run.id); | |
| await github.rest.actions.reRunWorkflowFailedJobs({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| run_id: context.payload.workflow_run.id | |
| }) | |
| await create_check_run('success', 'Restarted workflow run due to preempted job') |