test: cover both scenarios from issue #231#297
Merged
alexander-akait merged 2 commits intomainfrom Apr 27, 2026
Merged
Conversation
Add explicit tests pinning the symlink-path semantics established by PRs #291/#296 against the original bug report: - a file modified through a symlinked directory is reported with the symlink path (e.g. `a/b/ext_dir_link/inner`), not the resolved target path (`ext_dir/inner`). - the user-supplied `ignored` callback is queried with the symlink path, so an allowlist scoped to the watched subtree continues to match files that physically live outside it. These assertions go beyond the existing `expect([...changes]).toEqual` checks (which only verify the aggregated directory) and lock down the per-file path that consumers like webpack actually rely on. Refs #231 https://claude.ai/code/session_016tnQoHN9qHz9PRZo312iHs
|
🦋 Changeset detectedLatest commit: 75358f0 The changes in this PR will be included in the next version bump. This PR includes changesets to release 1 package
Not sure what this means? Click here to learn what changesets are. Click here if you're a maintainer who wants to add another changeset to this PR |
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #297 +/- ##
==========================================
+ Coverage 95.67% 95.77% +0.09%
==========================================
Files 7 7
Lines 1179 1183 +4
Branches 345 346 +1
==========================================
+ Hits 1128 1133 +5
+ Misses 46 45 -1
Partials 5 5
Flags with carried forward coverage won't be shown. Click here to find out more. ☔ View full report in Codecov by Sentry. 🚀 New features to boost your workflow:
|
The #190 / #231 fixes (PRs #291, #296) made DirectoryWatcher descend into symlinked directories whose realpath lives outside the watched real directory. The existing short-circuit only catches symlinks that point to a sibling in the same parent (`dirname(realPath) === this.path`); it does not catch the case where the target is an ancestor of the symlink itself, e.g. `a/b/loop -> ..`. Without protection, `readdir` follows the symlink, finds the original tree again, and a new DirectoryWatcher is created at every recursion level (locally observed: ~1500 watchers within 2 s, ~2500 within 2.5 s) until paths hit PATH_MAX. Compute `path.relative(realPath, itemPath)` before descending: when the relative path doesn't go up (no `..`, not absolute), the symlink target is at-or-above the symlink itself and would create a cycle. In that case, treat the symlink as a plain entry instead of descending. A regression test (`should not recurse infinitely when a symlinked directory points to one of its ancestors`) creates `a/b/cycle -> ..` and asserts the WatcherManager's `directoryWatchers` size stays under 10 — without the guard the test fails with ~1580 watchers. Also adds a changeset entry documenting the fix. Refs #231 https://claude.ai/code/session_016tnQoHN9qHz9PRZo312iHs
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Add explicit tests pinning the symlink-path semantics established by
PRs #291/#296 against the original bug report:
symlink path (e.g.
a/b/ext_dir_link/inner), not the resolvedtarget path (
ext_dir/inner).ignoredcallback is queried with the symlinkpath, so an allowlist scoped to the watched subtree continues to
match files that physically live outside it.
These assertions go beyond the existing
expect([...changes]).toEqualchecks (which only verify the aggregated directory) and lock down the
per-file path that consumers like webpack actually rely on.
Refs #231
https://claude.ai/code/session_016tnQoHN9qHz9PRZo312iHs