Files
msd-core/.changeset
Tom Boucher dfbb684843 fix(#706): skip rescue of already-committed SUMMARY to avoid worktree cleanup merge_failed (#709)
* fix(#706): skip rescueSummaryArtifacts when SUMMARY is already committed

rescueSummaryArtifacts now probes `git cat-file -e HEAD:<path>` before
copying a SUMMARY.md into the main checkout.  When the file is already
committed on the worktree branch, copying it as an untracked file causes
`git merge --no-ff` to abort with "untracked working tree files would be
overwritten by merge" — a permanent merge_failed cleanup-wave failure.

Fail-closed on timeout: if cat-file is unreliable we skip rescue (the
merge will surface the collision as it did before, which is recoverable).

Adds 4 new test cases in worktree-safety.test.cjs covering:
- committed SUMMARY skipped, merge succeeds (#706 regression case)
- committed SUMMARY skipped even when timeout (fail-closed)
- uncommitted SUMMARY still rescued (existing contract preserved)
- rescue failure on ENOSPC still propagates (unchanged)

Closes #706

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* chore: add changeset for #706

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix(#706): treat cat-file exit 128 as uncertain — skip rescue (fail-closed)

The previous guard skipped rescue only when `exitCode === 0` (committed) or
`timedOut`. Any other non-zero exit, including `128` (fatal git error: corrupt
object store, unborn HEAD, missing repo), fell through and PROCEEDED with
rescue — potentially re-creating the #706 untracked-file merge collision.

Fix: rescue ONLY when `exitCode === 1` (cat-file definitively reports the
object absent). All other outcomes — 0 (committed), 128 (fatal), null/SIGTERM
(timeout), or any other code — are treated as "uncertain → skip rescue".

Also corrects the JSDoc bullet that still referenced `git ls-files
--error-unmatch` (the old mechanism); updated to `git cat-file -e HEAD:<relPath>`.

Regression test added: asserts rescue is SKIPPED when cat-file returns exit 128,
leaving the merge to surface the issue safely rather than silently copying an
already-committed file.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* chore: link changeset to PR #709

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-06-06 12:40:28 -04:00
..

Changeset Fragments

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.

See #2975 for the full rationale.

Adding a fragment

node scripts/changeset/new.cjs \
  --type Fixed \
  --pr 1234 \
  --body "fix the thing — explain the user-visible change in one sentence"

This writes .changeset/<adjective>-<noun>-<noun>.md with frontmatter and a body. Three random words → concurrent PRs don't collide.

Format

---
type: Fixed
pr: 1234
---
**`/gsd-foo` no longer drops trailing slashes** — explain the user-visible change.

Allowed type: values follow Keep a Changelog: Added, Changed, Deprecated, Removed, Fixed, Security.

Opting out

PRs that legitimately have no user-facing impact can add the no-changelog label. CI honors it. When unsure, add the fragment.

At release time

Promotion is automatic. The release workflow's finalize job runs:

node scripts/changeset/cli.cjs render --version vX.Y.Z --date YYYY-MM-DD --allow-empty

This reads every fragment, groups bullets by type:, replaces ## [Unreleased] with a new ## [vX.Y.Z] - YYYY-MM-DD block, opens a fresh ## [Unreleased] above, and deletes consumed fragments. The --allow-empty flag ensures a no-change release still gets a dated heading (with a _No notable changes._ placeholder). A subsequent verify step confirms the promotion landed correctly. Maintainers do not run this by hand.

Archived fragments

.changeset/archived/ holds fragments for already-shipped releases (≤ 1.3.1), retained for provenance. Their content was hand-curated into the dated ## [1.x.y] sections of CHANGELOG.md during the #690 backfill — they were never consumed by render. All changeset tooling enumerates .changeset/ non-recursively, so archived fragments are never picked up or rendered. Do not move them back to the top level.