[infra] Add reusable release branch freshness check by sai6855 · Pull Request #1998 · mui/mui-public

sai6855 · 2026-10-27T12:48:03Z

Adds a reusable GitHub Actions check that passes PRs without the release label and fails labeled PRs that are behind their base branch. Repositories can call it for PR updates and base-branch pushes.

Opened PR in material-ui repo, once this is merged, we can merge this. mui/material-ui#49589

code-infra-dashboard · 2026-10-27T12:48:49Z

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https://deploy-preview-1998--mui-internal.netlify.app/

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Details of bundle changes

Performance

No regressions in 8 benchmarks · ran 56s · details

Check out the code infra dashboard for more information about this PR.

Copilot

🟡 Changes recommended

Preparation failures can preserve stale passing statuses, and repeated bucket refreshes can exhaust the per-head status quota.

2 open issues

What changed in this PR

Adds a reusable release-branch freshness check for consuming repositories, including the linked Material UI caller. It publishes a required commit status that enforces base-branch freshness for release-labeled PRs.

Changes:

Adds event-based PR selection and serialized, whole-bucket status updates.
Tests freshness checks, shared heads, API failures, pagination, and initialization.
Documents caller setup, deployment order, and branch protection requirements.

File	Description
AGENTS.md	Documents freshness-check conventions and updates the Node.js prerequisite.
.github/workflows/scripts/prs/release-up-to-date.md	Explains adoption and required-status configuration.
.github/workflows/scripts/prs/checkReleaseUpToDate.test.js	Tests PR selection and status reconciliation.
.github/workflows/scripts/prs/checkReleaseUpToDate.js	Implements SHA buckets, freshness comparisons, and commit statuses.
.github/workflows/prs_check-release-up-to-date.yml	Adds reusable preparation and serialized checking jobs.

_{Review effort: Balanced}

Copilot

🟡 Changes recommended

Head transitions and API failures can leave stale required statuses that incorrectly block or permit merging.

2 open issues

1 previously missed issue

In code that hasn't changed since last review

Refresh both old and new heads after PR synchronization

.github/workflows/scripts/prs/checkReleaseUpToDate.js:44

On a synchronize event, pull_request.head.sha is already the new head; the previous SHA is in payload.before. If a release PR advances into another bucket, an unlabeled PR sharing its old head can retain the failing required status even though freshness no longer applies. Include payload.before in the selected batches so both affected buckets are refreshed.

2 resolved since last review

_{Review effort: Balanced}

+    const open = await github.paginate(github.rest.pulls.list, {
+      ...context.repo,
+      state: 'open',
+      base: baseBranch,
+      per_page: 100,


Copilot

🔵 Needs a closer look

The release gate requires validation in an adopting repository with its real GITHUB_TOKEN and required-status rules, because HTTP-level tests cannot establish enforcement guarantees for fork PRs and overlapping PR/base-push runs.

1 open issue

Handle PR-list failures without leaving stale statuses

1 resolved since last review

Invalidate statuses even when lookup fails

_{Review effort: Balanced}

[infra] Add reusable release branch freshness check

437b566

[infra] Match repository lint conventions

460d35b

sai6855 mentioned this pull request Oct 27, 2026

[infra] Check release PR branch freshness mui/material-ui#49589

Draft

sai6855 marked this pull request as ready for review October 27, 2026 13:10

Copilot AI balanced review requested due to automatic review settings October 27, 2026 13:10

Copilot started reviewing on behalf of sai6855 October 27, 2026 13:10

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Comment thread .github/workflows/scripts/prs/checkReleaseUpToDate.js Resolved

Comment thread .github/workflows/scripts/prs/checkReleaseUpToDate.js Resolved

[infra] Fix release freshness status updates

8364691

sai6855 marked this pull request as draft October 27, 2026 13:25

sai6855 requested a balanced review from Copilot October 27, 2026 13:48

Copilot started reviewing on behalf of sai6855 October 27, 2026 13:48

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[infra] Reconcile release freshness with one resilient status writer

72e0a66

sai6855 requested a balanced review from Copilot October 29, 2026 07:24

Copilot started reviewing on behalf of sai6855 October 29, 2026 07:24

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[infra] Add reusable release branch freshness check - #1998

[infra] Add reusable release branch freshness check#1998
sai6855 wants to merge 4 commits into
mui:masterfrom
sai6855:codex/release-up-to-date

sai6855 commented Oct 27, 2026 •

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🟡 Changes recommended

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sai6855 commented Oct 27, 2026 •

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