Commit Graph

2 Commits

Author SHA1 Message Date
Tom Boucher
a28dcec981 chore(#597): replace count-based ratchet guards with AST lint + named-set allowlists (#603)
The windows-test-parity ratchet greps test source for fs.rmSync-without-
maxRetries (and six other Windows-portability anti-patterns), failing when an
integer offender COUNT exceeds a frozen baseline (rmSync: 95). A count ratchet
is a Goodhart metric: fixing one offender and adding another keeps the count
constant, so a new defect slips through green. Replace it — and every other
count ratchet in the repo — with a layered, masking-proof design.

Behavioral seam test
- tests/helpers-cleanup.test.cjs proves helpers.cleanup() carries the Windows
  EBUSY retry budget. cleanup() delegates retries to Node's fs.rmSync via
  maxRetries (it owns no loop), so the test asserts the option contract
  (recursive/force/maxRetries>0/retryDelay>0) + real-FS removal + the cwd-guard,
  rather than a loop that does not exist. The EBUSY risk is now tested ONCE at
  the helper, not approximated textually at every call site.

Write-time ESLint rule (AST-accurate, replaces the grep)
- eslint-rules/no-raw-rmsync-in-tests.cjs (error in tests/**/*.test.cjs) bans
  raw fs.rmSync, steering to cleanup(). Catches member, computed (fs['rmSync']),
  destructured and aliased forms; escape hatch is inline
  `// eslint-disable-next-line local/no-raw-rmsync-in-tests -- <reason>` only.
- Migrated 336 raw fs.rmSync teardown calls across ~116 test files to cleanup().
  ~18 genuinely load-bearing sites (mid-test SUT/fault-injection removals,
  error-swallowing or name-colliding local teardown helpers) keep the raw call
  with an inline eslint-disable + reason.

Shared anti-ratchet primitive
- scripts/lib/allowlist-ratchet.cjs:
  - assertWithinAllowlist: fails on NOVEL ids (new offender introduced) AND on
    STALE ids (a known offender was fixed but not pruned) — identity, not count,
    and a ratchet DOWN toward zero.
  - assertTightCeiling: a size/length budget whose ceiling must stay within a
    grace band of the high-water mark, so budgets may only tighten, never creep.

Ratchets converted onto the primitive
- windows-test-parity-guard.test.cjs: rmSync rule deleted (now ESLint-enforced);
  the remaining six patterns moved from integer baselines to named-set
  allowlists with ratchet-down.
- scripts/lint-test-file-count.{cjs,allowlist.json}: per-module integer counts →
  named filename sets (closes the swap-a-file-keep-the-count blind spot); a
  module dropping under cap now FAILS to force pruning its allowlist entry.
- enh-2790 skill-count `<= 63` → named skill allowlist (ratchets toward ~58).

Size budgets hardened (tighten-only)
- agent-size / workflow-size / feat-3039 help-tiered: ceilings lowered to the
  current high-water mark and an assertTightCeiling anti-creep check added per
  tier. Fixed external-contract limits (description ≤100 chars, agent ≤100 KB)
  are intentionally left as-is — they are not grandfathered creeping budgets.

No user-facing behavior change (tests + tooling only); no USER_FACING_PREFIXES
touched, so no changeset fragment is required.

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-01 22:43:49 -04:00
Tom Boucher
9f09246f3b fix(#2998): populate gsd-pristine/ from install transform pipeline so verifier has a real baseline (#3004)
* fix(#2998): populate gsd-pristine/ from install transform pipeline so verifier has a real baseline

saveLocalPatches declared a pristineDir variable and JSDoc'd 'saves
pristine copies to gsd-pristine/' but no code ever wrote there. Effect:
/gsd-reapply-patches Step 5 verifier (#2972) silently fell back to its
over-broad heuristic ('every significant backup line') -- exactly the
silent-success-on-lost-content failure mode #2969 was designed to
prevent.

Fix: new populatePristineDir({...}) helper runs copyWithPathReplacement
(the install transform pipeline) into a tmp staging dir, then copies out
only the modified-file paths into gsd-pristine/. saveLocalPatches now
accepts a pristineCtx and calls the helper when local patches are
detected. Soft-fails on transform errors (logs warning, continues with
empty pristine -- no worse than pre-fix).

Pristine reflects the about-to-install version's content, which is the
right baseline for 'what would survive without the user's modifications'.

Tests: bug-2998-pristine-dir-populated.test.cjs asserts the helper is
exported, no-ops on empty input, writes one pristine file per source-
existing path, skips ghost paths, and produces deterministic output
(byte-identical across runs -- the property pristine_hashes depends on).

Closes #2998

* chore(#2998): add changeset fragment for PR #3004

* fix(#2998): expand pristine to all manifest install roots; clear stale pristine on populate (CR)

CodeRabbit on PR #3004 caught two issues:

1. populatePristineDir only staged packageSrc/get-shit-done/ but
   manifest.files records edits under several install roots (commands/,
   agents/, hooks/, skills/, root files like .clinerules). Modified
   paths outside get-shit-done/ were silently skipped, leaving the
   verifier with no baseline for those edits. Fixed by computing the
   set of top-level dirs from the modified set and staging each one
   that exists in source. Root-level files (no slash) bypass the
   transform pipeline and are copied directly.

2. populatePristineDir did not wipe pre-existing gsd-pristine/ before
   populating. A previous run's stale pristine could survive into the
   current run's diff baseline. Now wipe before populate AND in the
   catch path so soft-failures don't leave half-populated data on disk.

Tests: bug-2998-pristine-dir-populated.test.cjs grows by 2 cases:
- agents/ paths are staged and copied (was silently skipped pre-fix)
- mixed get-shit-done/ + agents/ in same modified list both stage
2026-05-01 21:14:14 -04:00