Commit Graph

5 Commits

Author SHA1 Message Date
Tom Boucher
9faacc0c15 test(#3148): bound the long tail and delete the unbounded-spawn allowlist (#3192)
* test(#3148): bound the long tail and delete the allowlist

Migrates the final 170 unbounded sync spawn sites across 49 files, then
removes the allowlist entirely. local/no-unbounded-spawn now runs with no
exemption surface across tests/**: there is no file to add a name to.

drift-detection's throw-native git() helper routes to gitOrThrow -- bare
runGit would have taken 16 call sites quiet on failure. commands.test.cjs
has two independently-scoped runGsdTools/runCli helpers, one already bounded
and one not; they are kept distinct rather than unified, the same trap as the
two same-named git() helpers in Wave 1.

runNpm's bound was erasable. Its options spread callerOptions after the
defaults, so an explicit timeout:undefined silently dropped the 180000ms
bound -- the rule flagged it and was right; it was not a false positive. Fixed
by destructuring with a default, with a test that fails when the default is
removed.

Two sites stay on a raw spawn with an explicit timeout because the seam
cannot express them: one needs shell:true for npm.cmd on Windows, one
redirects stdout to a real fd. Both are the rule's own documented second
option, not an escape from it.

Closure verified rather than asserted: the derivation scan reports 0 unbounded
spawn helpers and 0 unbounded direct git call sites, and a temporary file
carrying an unbounded spawn still errors with the allowlist gone.

Closes #3064.

* test(#3148): close a hole in the guard's own eslint-disable ban

The ban listed only the top level of tests/, so it was blind to 37 .cjs
files under tests/helpers, qa, observability, fixtures and dispatch. With the
allowlist deleted this test is the sole remaining way to detect someone
silencing the rule inline, so the gap was load-bearing: a nested file could
carry an unbounded spawn plus an eslint-disable and pass everything.

Proven before and after. A probe planted under tests/helpers with both was
invisible to the guard and clean under eslint; after making the listing
recursive the guard fails on it. The scanned set goes from 771 files to 808.

Pre-existing since the guard shipped, but this wave is what promoted it to
sole defense, so it is fixed here rather than filed.

Also converts the last hand-rolled throw check to throwIfFailed and the last
re-derived legacy shape to compose toLegacyResult, which makes the epic's
none-remain claim true rather than nearly true. toLegacyResult itself is not
widened -- eight callers depend on its shape and one consumer does not
justify changing a shared contract.

* fix(#3148): correct seam incoherence at the bound and a slow review-lane error path

Two real failures from the remote runner, both fixed at the cause.

The seam could return outcome TIMED_OUT together with exitCode 0. At the
exact bound spawnSync reports ETIMEDOUT while the child has already exited
with a real status, and toSeamResult classified on the error code while
passing status straight through -- an incoherent pair its own boundary test
was written to catch, and did. A status that is not null is direct evidence
the child exited on its own, so it now decides the outcome before the
error-code branches run. process-seam.cjs was deliberately untouched by every
earlier wave; this is a defect in the module itself, kept surgical, with a
unit test that fails against the old logic.

review-lane with an unknown subcommand fell through to its usage error only
after loading the capability registry and building a per-lane plan, which
spawns one child process per lane -- up to twelve. The error path took
~1288ms instead of ~119ms, and under bench load it outran a caller's spawn
timeout and was killed before writing anything, which is the empty stdout and
stderr CI saw. It now fails fast before any of that work begins.

This is the epic's first production change. It is user-facing, so it carries
a changeset rather than a no-changelog label.

* test(#3148): replace a real-race timeout test with a deterministic one

E9 raced git rev-parse against a 1ms bound and assumed git always lost. On a
warm container git finishes first, spawnSync returns status 0 with no error
at all, the seam correctly classifies EXITED, and gitOrThrow correctly does
not throw -- so the test failed on both lanes. A probe confirms a genuine
timeout always carries status null, so this was never the seam misbehaving.

Raising the bound would only lengthen the odds, which is the same defect with
better luck. The test now drives gitOrThrow against a stubbed runGit that
returns a synthetic TIMED_OUT result, so it asserts exactly what it always
meant to -- that a timeout propagates as a throw -- with no timing
dependence. Five consecutive runs are identical where the old one varied.

I wrote this test in Wave 0; it is a real-race test by construction and
CLAUDE.md says to replace those rather than re-run them.

* chore(#3148): backfill changeset PR number 3192

---------

Co-authored-by: sim <sim@local>
2026-08-07 21:03:50 -04:00
Tom Boucher
cbd180c5cd test(#3147): bound the lint/changeset/docs cluster onto the process seam (#3181)
* test(#3147): bound the lint/changeset/docs cluster onto the process seam

Migrates 69 unbounded sync spawn sites across 24 files. Allowlist 73 to 49.

Two shared helpers move: tests/helpers/graphify.cjs (6 importing suites) and
tests/fixtures/index.cjs, whose three quoted-argument shell strings became
single argv elements rather than whitespace splits.

changeset-lint's throw-native git() helper routes to gitOrThrow; migrating it
to bare runGit would have silently swallowed a failure that is loud today.
ingest-docs goes the other way -- its catch never rethrew, it degraded failure
into data every call site asserts on, so throwIfFailed would have thrown where
the original returned. The design doc said otherwise and was corrected.

tsconfig-noemit runs a real tsc --noEmit and takes a bespoke 180000ms per the
ensure-runtime-build precedent, not the 30000ms build-hooks norm -- that norm
is for a file copy, and sizing against a label rather than the work is the
same error in the opposite direction.

* test(#3147): add toLegacyResult and settle review findings

The seam exposed a throwing adapter (throwIfFailed) but no non-throwing one,
so eight files independently re-derived the same unwrap back to the legacy
{status, stdout, stderr} shape. That is the third time this epic produced N
copies of one mechanism -- seven throw wrappers in Wave 1, fifty-two timeout
constants in Wave 2, eight result adapters here. The pattern is that whenever
the seam does not expose a mechanism, every suite re-derives it.

toLegacyResult now sits beside throwIfFailed, with its own tests.

Two sites are deliberately NOT converted: changeset-cli's runRender and
runRenderIn return {status, report, stderr} from parsed JSON and never a raw
stdout, so they are a different shape family. lint-legacy-dir-name keeps its
local GUARD_TIMEOUT_MS: 30000 matches the build norm numerically but bounds a
lint probe, not hooks bundling, and importing it would encode a coincidence
as a relationship.

---------

Co-authored-by: sim <sim@local>
2026-08-07 15:45:51 -04:00
Tom Boucher
3fac6e629f test(#3145): bound the installer/runtime cluster onto the process seam (#3176)
* test(#3145): bound the installer/runtime cluster onto the process seam

Migrates 156 unbounded sync spawn sites across 47 files. Allowlist 120 to 73.

Timeouts are sized from evidence already in the tree rather than a house
default, because this wave spawns installers rather than git plumbing and an
undersized bound does not catch a hang -- it manufactures CI flake, which is
worse, since a flake gets re-run instead of investigated. install.test.cjs
records a real spawnSync ETIMEDOUT at a 60000ms cap on a loaded bench while
another lane passed the same commit in 12.7s, so full installs are bound at
120000ms against that recorded incident.

Also adds an auditable escape to the guard's timeout ceiling. The 600000ms
cap was set in #3143 from partial evidence, but fragment-single-edit-
propagation carries a documented, load-tested 900000ms bound on a run that
chains a full build plus eight generators -- the guard would have rejected a
correct timeout the moment that file left the allowlist. A value above the
ceiling is now permitted only with an inline allow-spawn-timeout-ceiling
marker carrying a non-empty reason. It raises the ceiling; it never waives
the requirement for a bound, which is asserted directly.

install-shared.cjs keeps its hand-rolled assert rather than routing through
throwIfFailed: its message embeds both streams, and throwIfFailed carries
only a trimmed stderr. The message now also names the outcome, so a bounded
timeout reads as such across its 38 importers instead of as
expected null to equal 0.

* test(#3145): extract class-norm timeouts and correct the build-hooks sizing

A pre-PR review found 52 copies of four class-norm timeout constants across
this wave. These are not per-suite fixture bindings -- they are shared facts
about how long a class of subprocess takes, derived from a recorded bench
incident. That norm already moved once (60000 to 120000 after a real
ETIMEDOUT), and 52 copies would have drifted the next time it moved.

Extracts tests/helpers/timeouts.cjs, where each norm is justified once, and
converts the copies. A site that genuinely differs -- a real tsc compile, or
regen:derived -- keeps its own local constant with its own justification.

Also corrects a misclassification: scripts/build-hooks.js was sized as a
build at 120000 in twelve places and 60000 in another, but it compiles and
bundles nothing. Its own header says no bundling needed; it copies pre-built
files and syntax-checks them with vm. Three different values bounded one
script; now there is one.

* test(#3145): fix red CI — lint self-match and a Windows chunk overrun

Two failures on PR 3176.

lint-allow-test-rule-refs read a RuleTester fixture as a real exemption. The
fixture exists to prove an unrelated marker does NOT suppress the rule, so it
carries that marker's literal text as test data. Split via concatenation, the
same idiom no-unbounded-spawn-allowlist.test.cjs already uses for its own
self-match problem. The explanatory comment needed the same treatment.

The Windows shard 3/3 chunk was killed at its 600000ms budget. Output stopped
seven minutes before the kill, so this was an overrun rather than a slow
chunk: regenDerivedPropagatesSingleFragmentEditWithNoSecondSourceSurface runs
regen:derived bounded at 900000ms, which is larger than the whole chunk
budget, so the chunk killer always fires first and it can never complete
there. Both the test and that bound predate this change; modifying the file
pulled it into the Windows targeted set and exposed it. Skipped on Windows
with the reason recorded; the Linux lanes cover it. The 900000 bound and its
ceiling marker are unchanged -- they are correct.

* test(#3145): refresh the stale test-timings cost table

The Windows shard was killed at its 600000ms per-chunk budget. run-tests.cjs
packs chunks by measured duration from tests/test-timings.json, and an
unknown file falls back to the table's median weight -- advisory by design,
but it silently underweights exactly the files that matter.

Four of the failing chunk's 22 files were absent from the table, including
the two heaviest: fragment-single-edit-propagation.install.test.cjs at 230s
(it runs regen:derived) and agent-fragments-emission.install.test.cjs at 79s.
Both were weighted as average, so the chunk's total weight read 53.68 against
a budget of 60 and the packer produced a single chunk.

Regenerated from a passing full-suite run, per the remedy the script itself
documents. 700 to 770 entries, 70 added, 0 dropped -- verified, since
gen-test-timings.cjs replaces the table wholesale rather than merging.

Proven against the real packer: the same 22 files now weigh 103.91 and split
into two chunks. No logic, budget, or timeout was changed; raising a budget
to make a red gate pass is not a fix.

---------

Co-authored-by: sim <sim@local>
2026-08-07 15:18:18 -04:00
Tom Boucher
1d208e5af6 test(#3144): bound the git/worktree cluster onto the process seam (#3152)
* test(#3144): bound the git/worktree cluster onto the process seam

Migrates 180 unbounded sync spawn sites across 19 files. Every previously
unbounded call now carries an explicit timeout with a comment giving the
number and why.

The migration is not a callee swap. execSync and execFileSync throw on a
non-zero exit and the seam never does, so each site was classified first:
sites that rely on the throw route to gitOrThrow, and sites that already read
.status to detect an EXPECTED non-zero -- an intended cherry-pick conflict, a
rev-parse outside a repo driving a skip -- route to the never-throwing runGit
instead, which would otherwise throw on exactly the exit being probed for.

Two same-named git() helpers in worktree-cleanup.test.cjs have different
return contracts, one trimmed and one raw; both are preserved rather than
unified.

Collapses five hand-rolled throw wrappers onto one throwIfFailed in
git-fixture.cjs, which gitOrThrow now also uses so the shape cannot drift.

Allowlist drops 139 to 120; BASELINE lowered to match.

* test(#3144): fix pre-PR review findings

Documents throwIfFailed in the CONTEXT.md glossary and CONTRIBUTING.md --
it became the shared throw mechanism without either doc naming it.

Routes the sixth and seventh hand-rolled copies of the throw shape through
throwIfFailed (worktree-baseref-install, worktree-safety-reap); the first
consolidation missed both.

Converts ci-rebase-check's 8 fixture-setup calls from unchecked runGit to
gitOrThrow so a failed setup step aborts where it fails rather than
surfacing later as a confusing failure against the wrong subject.

Adds 12 direct unit tests for throwIfFailed, which until now was only
exercised transitively.

Splits verify.test.cjs's non-git grep/sed bound off GIT_TIMEOUT_MS.

---------

Co-authored-by: sim <sim@local>
2026-08-07 10:58:34 -04:00
Tom Boucher
2afe17bbdb test(#3143): add the no-unbounded-spawn guard and throw-preserving git fixture (#3150)
* test(#3143): add no-unbounded-spawn guard and throw-preserving git fixture

Adds the ESLint rule local/no-unbounded-spawn, wired into the tests/**/*.cjs
block, plus an allowlist that only ratchets down: a listed file with zero
violations reports its own entry as stale.

The rule resolves renamed destructures and chained requires rather than
matching literal callee names -- both forms exist in the suite today and a
name-only matcher leaves them permanently invisible. It resolves an options
object held in a single-write const, which is what keeps process-seam.cjs,
the bounded reference implementation, from flagging itself.

timeout: 0 and anything above the 600000ms ceiling are rejected as only
nominally bounded.

Adds tests/helpers/git-fixture.cjs so a migrated execSync call site keeps
its throw-on-non-zero contract; process-seam.cjs is unchanged.

* test(#3143): prove the allowlist guards can actually fail

Extracts the D4/D6/D7/D8 checks into pure helpers and drives each against a
synthetic fixture carrying an injected violation. Without this the suite only
proved that today's clean data passes, which a deleted check would also
satisfy.

* fix(#3143): close two ceiling and alias escapes found in review

Nested arithmetic bypassed the ceiling entirely: the numeric evaluator only
resolved a flat literal, so `timeout: 60 * 60 * 1000` (3600000ms, six times
the ceiling) fell through to trusted and reported nothing. The evaluator now
recurses through arithmetic and unary signs with a depth cap.

Alias resolution was traversal-order dependent, not scope dependent: a call
textually above its own require destructure saw an empty alias map and
reported clean. The map is now built in a Program pre-pass.

Also: an explicit timeoutMs:undefined no longer overwrites the git fixture
default via spread, adds the missing seam-routed rule test, and de-duplicates
the repeated try/catch in the fixture tests.

---------

Co-authored-by: sim <sim@local>
2026-08-07 09:43:36 -04:00