Reconcile verified agent pull request merges #1
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| name: Reconcile verified agent pull request merges | |
| on: | |
| schedule: | |
| - cron: "*/5 * * * *" | |
| workflow_dispatch: | |
| permissions: | |
| actions: read | |
| contents: write | |
| pull-requests: write | |
| concurrency: | |
| group: reconcile-verified-agent-merges | |
| cancel-in-progress: false | |
| jobs: | |
| reconcile: | |
| runs-on: ubuntu-latest | |
| timeout-minutes: 10 | |
| steps: | |
| - name: Merge eligible exact-head verified pull requests | |
| uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 | |
| with: | |
| script: | | |
| const { owner, repo } = context.repo; | |
| const trustedAssociations = new Set(["OWNER", "MEMBER", "COLLABORATOR"]); | |
| const pulls = await github.paginate(github.rest.pulls.list, { | |
| owner, | |
| repo, | |
| state: "open", | |
| base: "main", | |
| per_page: 100, | |
| }); | |
| const candidates = pulls.filter((pr) => { | |
| const markedSyncBot = | |
| pr.user?.login === "github-actions[bot]" && | |
| pr.head.ref.startsWith("agent/upstream-sync-") && | |
| pr.body?.includes("Automated-Upstream-Mike-Sync: true"); | |
| return ( | |
| !pr.draft && | |
| pr.head.repo?.full_name === `${owner}/${repo}` && | |
| pr.head.ref.startsWith("agent/") && | |
| (trustedAssociations.has(pr.author_association) || markedSyncBot) | |
| ); | |
| }); | |
| const gateQuery = ` | |
| query($owner: String!, $repo: String!, $number: Int!, $after: String) { | |
| repository(owner: $owner, name: $repo) { | |
| pullRequest(number: $number) { | |
| state | |
| isDraft | |
| headRefOid | |
| reviewDecision | |
| mergeable | |
| reviewThreads(first: 100, after: $after) { | |
| nodes { isResolved } | |
| pageInfo { hasNextPage endCursor } | |
| } | |
| } | |
| } | |
| } | |
| `; | |
| const readGate = async (number) => { | |
| let after = null; | |
| let pullRequest = null; | |
| let unresolved = false; | |
| do { | |
| const result = await github.graphql(gateQuery, { | |
| owner, | |
| repo, | |
| number, | |
| after, | |
| }); | |
| pullRequest = result.repository.pullRequest; | |
| unresolved ||= pullRequest.reviewThreads.nodes.some( | |
| (thread) => !thread.isResolved, | |
| ); | |
| after = pullRequest.reviewThreads.pageInfo.hasNextPage | |
| ? pullRequest.reviewThreads.pageInfo.endCursor | |
| : null; | |
| } while (after); | |
| return { pullRequest, unresolved }; | |
| }; | |
| for (const pr of candidates) { | |
| const runs = await github.paginate( | |
| github.rest.actions.listWorkflowRunsForRepo, | |
| { | |
| owner, | |
| repo, | |
| branch: pr.head.ref, | |
| status: "completed", | |
| per_page: 100, | |
| }, | |
| ); | |
| const verified = runs.some( | |
| (run) => | |
| run.name === "Baseline verification" && | |
| run.conclusion === "success" && | |
| run.head_sha === pr.head.sha && | |
| (run.event === "pull_request" || run.event === "workflow_dispatch"), | |
| ); | |
| if (!verified) { | |
| core.info(`PR #${pr.number} has no successful exact-head Baseline.`); | |
| continue; | |
| } | |
| let gate; | |
| for (let attempt = 1; attempt <= 6; attempt += 1) { | |
| gate = await readGate(pr.number); | |
| if (gate.pullRequest.mergeable !== "UNKNOWN") break; | |
| if (attempt < 6) await new Promise((resolve) => setTimeout(resolve, 10000)); | |
| } | |
| const node = gate.pullRequest; | |
| const blocked = | |
| node.state !== "OPEN" || | |
| node.isDraft || | |
| node.headRefOid !== pr.head.sha || | |
| node.reviewDecision === "CHANGES_REQUESTED" || | |
| node.mergeable !== "MERGEABLE" || | |
| gate.unresolved; | |
| if (blocked) { | |
| core.info(`PR #${pr.number} still has a review, head, or mergeability blocker.`); | |
| continue; | |
| } | |
| try { | |
| await github.rest.pulls.merge({ | |
| owner, | |
| repo, | |
| pull_number: pr.number, | |
| merge_method: "squash", | |
| sha: pr.head.sha, | |
| }); | |
| core.notice(`Reconciled and merged PR #${pr.number} at verified head ${pr.head.sha}.`); | |
| } catch (error) { | |
| core.warning(`PR #${pr.number} was eligible but merge failed: ${error.message}`); | |
| } | |
| } |