fix(ci): require pre-merge CHANGELOG PR-reference for governed changes - #705
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scripts/check-doc-metrics.mjs's completeness gate only enforces a PR-number reference in CHANGELOG.md's [Unreleased] section AFTER squash-merge, once the commit is on main and its subject already carries "(#N)" — pre-merge, a branch's own not-yet-squashed commits are (correctly) exempted from that check. This has left a recurring blind spot: nothing stops a governed PR from merging without ever adding the entry, even though its real PR number is already knowable via the GitHub API before merge. It has recurred three times (#678->#679, #684->#685, #699->#700), each requiring a same-pattern follow-up PR to add the missing reference after the fact. Adds a new, independent pre-merge admission gate (.github/workflows/pr-changelog-reference.yml + scripts/check-pr-changelog-reference.mjs) that fails a governed (feat|fix| perf) PR's CI unless CHANGELOG.md's [Unreleased] section already references it as "PR #<N>", using the PR number from GitHub's own event payload — not inferred from commit history. Deliberately stricter grammar than the existing post-merge bare "#NNN" matcher, since pre-merge there is no squash-appended "(#NNN)" to anchor on. Mirrors pr-text-attribution.yml's base-ref self-grading pattern (runs the checker from the PR's base ref, with a documented one-time bootstrap fallback) so a PR cannot weaken the check that grades it. The existing scanUnreleasedTruth machinery in check-doc-metrics.mjs — governing local pre-push behavior and the historical post-merge/branch-local exemption — is untouched. Complements, but does not implement, issue #675's broader deterministic- identifier-contract scope (replacing the unnumbered-commit slug-match fallback) — this gate only closes the narrower pre-merge admission gap for PRs that already have a real, known PR number, which is the common case. 13 regression tests plus real-text fixtures reproducing all three historical incidents (#678/#679, #684/#685, #699/#700) in tests/unit/checkPrChangelogReference.test.ts.
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Reviewer's GuideIntroduces a base-ref-loaded pre-merge workflow and self-contained checker that blocks governed feat/fix/perf PRs unless CHANGELOG.md’s [Unreleased] section contains the event-provided PR number in Sequence diagram for the pre-merge CHANGELOG reference gatesequenceDiagram
participant GitHub
participant Workflow
participant BaseChecker
participant Checker
participant EventPayload
participant Changelog
GitHub->>Workflow: pull_request opened/edited/synchronize/reopened
Workflow->>BaseChecker: load scripts/check-pr-changelog-reference.mjs from base SHA
alt checker exists on base ref
BaseChecker-->>Workflow: base-ref checker
else bootstrap PR
Workflow->>Checker: use PR copy once
end
Workflow->>Checker: node checker
Checker->>EventPayload: read GITHUB_EVENT_PATH
EventPayload-->>Checker: PR number and title
Checker->>Changelog: read CHANGELOG.md
Changelog-->>Checker: [Unreleased] content
alt title is governed and section lacks PR #N
Checker-->>Workflow: fail admission check
else non-governed or referenced
Checker-->>Workflow: pass or skip
end
Flow diagram for governed PR CHANGELOG validationflowchart TD
A[Pull request event] --> B{Pull request payload?}
B -- No --> C[Skip]
B -- Yes --> D{Title starts with feat, fix, or perf?}
D -- No --> C
D -- Yes --> E[Read CHANGELOG.md]
E --> F[Extract Unreleased section]
F --> G{Contains PR #N for event PR number?}
G -- Yes --> H[Pass]
G -- No --> I[Fail before merge]
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📝 WalkthroughWalkthroughThis change adds structured changelog-reference validation, stricter ChangesChangelog reference guard
Priority: ⬇️ Low Estimated code review effort: 3 (Moderate) | ~25 minutes Sequence Diagram(s)sequenceDiagram
participant PullRequest
participant GitHubActions
participant checkPrChangelogReference
participant CHANGELOG.md
PullRequest->>GitHubActions: trigger pull request workflow
GitHubActions->>checkPrChangelogReference: select and execute checker
checkPrChangelogReference->>CHANGELOG.md: read [Unreleased] bullet entries
CHANGELOG.md-->>checkPrChangelogReference: return changelog entries
checkPrChangelogReference-->>GitHubActions: return validation result
GitHubActions-->>PullRequest: pass or fail workflow
Merge Risk: 🔵 Low · up to This change adds a new CI gate script that blocks merges lacking a CHANGELOG reference. A malformed pull_request event payload (missing the title field) can currently bypass the gate silently instead of failing the check, which is a minor but real gap in the new automation's fail-closed guarantee. It should be tightened before merge, but the risk is confined to the CI script and does not affect application runtime behavior. 🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
✨ Finishing Touches📝 Generate docstrings
🧪 Generate unit tests (beta)
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Inline comments:
In `@scripts/check-pr-changelog-reference.mjs`:
- Around line 33-34: Update isReferencedByPrLabel so the PR number match
requires a full token boundary, rejecting non-numeric suffixes such as letters
or underscores while preserving valid references. Add a near-miss test covering
malformed suffixes like “PR `#705oops`” and “PR `#705_`”.
In `@tests/unit/checkPrChangelogReference.test.ts`:
- Around line 2-6: Update the file-level comment in the test file to include a
one-line `// QNBS-v3: [Grund / Impact / Kreativer Mehrwert]` change comment
describing this content-relevant test change.
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.github/workflows/pr-changelog-reference.ymlCHANGELOG.mdREADME.mdscripts/check-pr-changelog-reference.d.mtsscripts/check-pr-changelog-reference.mjstests/unit/checkPrChangelogReference.test.ts
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CodeScene flagged the new test file's code health below 10.00 due to repeated per-test literal boilerplate. Factored a shared fixture builder and consolidated closely related cases into it.each() tables — same 18 assertions, same coverage, no behavior change to the checker itself.
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The check previously tested the whole raw [Unreleased] section text, so a PR number mentioned only in prose (e.g. a reviewer note directly under a ### heading, not inside a real release-note bullet) could satisfy admission without ever adding a genuine changelog entry. Scoped to parsed bullet entries (joining soft-wrapped continuation lines, mirroring check-doc-metrics.mjs's splitUnreleasedEntries) so only a reference inside an actual bullet counts. Mutation-tested: reverted to whole-section matching, confirmed exactly the new prose-bypass regression test failed, restored.
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…e gate - isReferencedByPrLabel used (?!\d) as its trailing boundary, so a malformed near-miss like "PR #705alpha" or "PR #705_internal" satisfied the gate. Widened to (?!\w), a full word boundary, matching the existing post-merge checker's own boundary discipline. - extractBulletEntries appended any non-blank line to the current bullet as a soft-wrap continuation, including a Markdown heading with no blank line before it — so a heading like "### Notes: PR #700" right after an unrelated bullet could satisfy the gate. Now flushes the current entry on a heading line before the continuation check. Also fails closed (instead of silently skipping) when a pull_request event payload is missing its numeric "number" field, rather than treating that the same as a genuinely absent pull_request event. 5 new regression tests (word-boundary near-misses x2, heading-continuation bypass, doubling as the mutation-tested proof for both fixes).
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getUnreleasedSectionText searched for the heading in the raw changelog, then stripped HTML comments from the extracted section afterward. A commented-out template containing a literal "## [Unreleased]" line earlier in the file could hijack the section-boundary search — slicing off the opening "<!--" before comment-removal ran left the fake section's own placeholder content unstrippable, so a bogus "PR #<N>" inside the comment could satisfy the gate while the real [Unreleased] section had no reference at all. Strips comments from the whole document up front instead, before any heading/section parsing. Regression test reproduces the exact scenario; mutation-tested by reverting to the old order and confirming exactly that test fails.
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[check-pr-size] PR size is over the target tier (normal profile): 6 files, 418 meaningful lines, 9 commits — limit ≤8 files / ≤400 lines / ≤6 commits. Consider splitting into smaller, independently reviewable PRs. |
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Inline comments:
In `@scripts/check-pr-changelog-reference.mjs`:
- Around line 97-102: Update the pull-request metadata validation before the
changelog check to require a string pr.title and a positive integer pr.number,
rejecting missing or malformed values with the existing fail-closed CLI error
path. Add regression coverage for a missing title and a non-integer number,
while preserving valid pull-request processing.
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…ion scoping - isValidPrMetadata (extracted for testability) now rejects a non-integer, zero, or negative PR number, and a missing/blank title, instead of only checking typeof number === 'number' (which admits NaN and negative values). Fails closed instead of silently exit-0'ing on a malformed event payload. - extractBulletEntries's heading-only flush was one instance of a broader bug class: any flush-left non-bullet line (blockquote, code fence, hr) was still absorbed as a continuation. Replaced with the general rule this project's own CHANGELOG entries already follow: a continuation line must be indented. A flush-left line that isn't a new bullet ends the current entry, without enumerating every Markdown block type individually. New regression tests for both, plus a blockquote-continuation case mirroring the heading one. Mutation-tested: each fix reverted individually, confirmed exactly its own tests fail, restored.
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…tEntries CodeScene flagged extractBulletEntries' compound boolean condition as too complex. Named predicate, no behavior change — all 32 existing tests pass unmodified.
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User description
Problem
scripts/check-doc-metrics.mjs's CHANGELOG completeness gate only enforces aPR-number reference in
[Unreleased]after squash-merge, once the commitis on
mainand its subject already carries(#N). Pre-merge, a branch'sown not-yet-squashed commits are (correctly) exempted from that check, since
individual intermediate commits get squashed into one at merge time.
This has left a recurring blind spot: nothing stops a governed PR from
merging without ever adding a CHANGELOG entry, even though the PR's real
number is already knowable via the GitHub API before merge. It has recurred
three times, each requiring a same-pattern follow-up PR to add the missing
reference after the fact:
Fix
A new, independent pre-merge admission gate:
.github/workflows/pr-changelog-reference.yml— triggers onopened/edited/synchronize/reopened(title-only edits included).Mirrors
pr-text-attribution.yml's base-ref self-grading pattern: thechecker script is loaded from the PR's base ref, with a documented
one-time bootstrap fallback, so a PR cannot weaken the check that grades
it.
scripts/check-pr-changelog-reference.mjs— fails a governed(
feat|fix|perf) PR unlessCHANGELOG.md's[Unreleased]section alreadyreferences it as
PR #<N>, using the PR number from GitHub's own eventpayload (never inferred from git history). Deliberately stricter grammar
than the existing post-merge bare
#NNNmatcher, since pre-merge there isno squash-appended
(#NNN)to anchor on yet. Fully self-contained (nolocal imports) so the base-ref copy can never break on a missing
transitive dependency.
The existing
scanUnreleasedTruthmachinery incheck-doc-metrics.mjs—governing local pre-push behavior and the historical post-merge/branch-local
exemption — is untouched.
Non-goals
(replacing the unnumbered-commit slug-match fallback with SHA/change-ID
identifiers). This gate only closes the narrower pre-merge admission gap
for PRs that already have a real, known PR number — the common case — and
is fully compatible with governance(changelog): replace heuristic fallback ambiguity with a deterministic contract for unnumbered governed commits #675's eventual direction.
outside GitHub's own PR-event payload.
Testing
tests/unit/checkPrChangelogReference.test.ts— 17 tests: 13 regressiontests (governed-type grammar incl. scope/
!, missing/wrong-PR/bare-#N/trailing-
(#N)rejections, non-governed skip, number-boundary safety,case/whitespace tolerance) plus 4 fixtures reproducing all three historical
incidents using the real CHANGELOG text from each recovery PR.
Mutation-tested: temporarily weakened the exact-grammar regex to accept bare
#NNN, confirmed exactly the two grammar-specific tests failed, restored.Also verified via the real CLI path (not just the pure function) against
live
GITHUB_EVENT_PATHfixtures: correct fail-closed, not-a-PR-eventno-op, and no-event-path no-op behavior.
Summary by Sourcery
Require governed pull requests to include a self-referencing entry in the unreleased changelog before they can merge.
New Features:
Bug Fixes:
Enhancements:
CI:
Documentation:
Tests:
Summary by cubic
Adds a pre-merge CI gate requiring governed (
feat|fix|perf) PRs to reference their own PR number asPR #<N>inCHANGELOG.md's[Unreleased]section before merging. Previously the CHANGELOG completeness check only ran after squash-merge, so governed PRs could merge with no entry — a gap that has already required three follow-up PRs (#678→#679, #684→#685, #699→#700).Details
PR #<N>grammar with a full trailing word boundary, rejecting near-misses likePR #700alphaorPR #700_internal.[Unreleased]heading, so a commented-out fake section can't satisfy the gate.docs:, etc.); local pre-push behavior and the existing post-merge check are untouched.Written for commit b02958d. Summary will update on new commits.
Summary by CodeRabbit
New Features
[Unreleased]changelog section before merging.Documentation
CodeAnt-AI Description
Require governed pull requests to reference themselves in the unreleased changelog before merging
What Changed
feat,fix, orperfmust include a bullet inCHANGELOG.md's[Unreleased]section that references their own GitHub PR number.Impact
✅ Fewer governed changes merged without changelog entries✅ Earlier CI feedback before merge✅ Accurate self-references tied to the actual PR number💡 Usage Guide
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