* fix(3407): snapshot old release into gsd-pristine, not new
saveLocalPatches() was wiping gsd-pristine/ then re-populating it from
pristineCtx.packageSrc — the NEW release source tree. For files that
changed between old and new releases, this wrote NEW-release bytes as the
pristine baseline while backup-meta.json recorded OLD-release hashes. The
resulting hash mismatch triggered the #3657 verifier guard on every such
file, causing it to skip the three-way diff baseline and fall back to the
over-broad heuristic — effectively nullifying the #2998 feature for any
file that changed upstream.
Fix: preserve existing gsd-pristine/ entries that are already correct
(sha256 on disk matches originalHash from manifest). These were written
by the previous install with old-release bytes and remain valid. For
files where no correct entry exists, leave gsd-pristine/ absent so the
verifier falls back cleanly to over-broad mode — safe, never false-fails.
OK_PRISTINE_DRIFT_DETECTED (added by #3657) is intentionally kept: it
guards installations that already have drifted pristine from pre-fix runs
and protects against other future stale-pristine scenarios. It is not
removed because its guard is correct; only its trigger frequency drops.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* chore: add changeset for #3801
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* fix(3407): hash-validated regeneration for missing gsd-pristine entries
Codex adversarial review found that the #3407 fix left absent gsd-pristine/
entries permanently absent, causing persistent over-broad verification even
when the file was unchanged between old and new releases.
Add selective regeneration: for entries absent from gsd-pristine/, generate
a candidate via populatePristineDir into a temp dir using new-release source,
then only promote if sha256(candidate) === originalHash. When hashes match,
the file was identical across releases so new-release bytes ARE the correct
old-release pristine. Discard mismatches — over-broad fallback applies.
Add regression test asserting regeneration occurs for unchanged-between-
releases files whose pristine entry was absent.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* fix(3407): address review — restore mkdtempSync resilience, tighten tests, fix counter accounting
Addresses sonnet adversarial MAJOR (mkdtempSync outside try/finally caused uncaught
exception on broken /tmp), MIN-01–MIN-05 (misleading prose, counter double-count,
missing stale-pristine test, permissive assertion, vacuous antipattern-hunt), sonnet
MINOR (rmSync EISDIR), NIT (unused import, test count).
F1: move mkdtempSync inside try block with catch/warn for graceful degradation
F2: fix misleading prose — gsd-pristine/ is populated lazily by saveLocalPatches, not
a separate install-time step
F3: fix counter double-counting — track stalePaths/regeneratedPaths as Sets; removed
= stale NOT regenerated (non-overlapping counts); update log message accordingly
F4: add stale-pristine recovery test — pre-populates gsd-pristine/ with new-release
bytes (exact pre-fix bug artifact), asserts absent after fix run
F5: tighten Test 3 assertion from permissive if(exists)/notEqual to strict
assert.strictEqual(exists, false)
F6: remove vacuous antipattern-hunt describe block (typeof checks only, no behavioral
coverage) — rationale noted in comment
F7: use fs.rmSync with force:true/recursive:true for EISDIR resilience; only count
removed after confirming file is actually gone via existsSync
F8: remove unused afterEach from destructured import
F9: test count updated to reflect 4 tests in describe block
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---------
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
This directory holds per-PR CHANGELOG fragments. Every PR with user-facing changes drops one (or more) <random-name>.md files here describing its CHANGELOG entry. Fragments are consolidated into the top-level CHANGELOG.md at release time.
Why
Two PRs that both edit the ### Fixed block of CHANGELOG.md always conflict on merge — git can't pick a serialization order without human input. Two PRs that each add a fresh .changeset/<unique-name>.md never conflict because they don't share lines.
Reads every fragment, groups bullets by type:, replaces ## [Unreleased] with a new ## [vX.Y.Z] - YYYY-MM-DD block, opens a fresh ## [Unreleased] above, deletes consumed fragments. Idempotent.
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