robobun ecd4e680eb fix(router): don't cache file descriptors in Route.parse to prevent stale fd reuse (#27164) ...

## Summary
- `FileSystemRouter.Route.parse()` was caching file descriptors in the
global entry cache (`entry.cache.fd`). When `Bun.build()` later closed
these fds during `ParseTask`, the cache still referenced them.
Subsequent `Bun.build()` calls would find these stale fds, pass them to
`readFileWithAllocator`, and `seekTo(0)` would fail with EBADF (errno
9).
- The fix ensures `Route.parse` always closes the file it opens for
`getFdPath` instead of caching it in the shared entry. The fd was only
used to resolve the absolute path via `getFdPath`, so caching was
unnecessary and harmful.

Closes #18242

## Test plan
- [x] Added regression test `test/regression/issue/18242.test.ts` that
creates a `FileSystemRouter` and runs `Bun.build()` three times
sequentially
- [x] Test passes with `bun bd test test/regression/issue/18242.test.ts`
- [x] Test fails with `USE_SYSTEM_BUN=1 bun test
test/regression/issue/18242.test.ts` (system bun v1.3.9)
- [x] Verified 5 sequential builds work correctly after the fix

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Co-authored-by: Claude Bot <claude-bot@bun.sh>
Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: Jarred Sumner <jarred@jarredsumner.com>

2026-02-19 20:15:11 -08:00

..

fixtures

fix(test): eliminate external HTTPS fetches and renew expired TLS certs (#27013)

2026-02-13 20:45:06 -08:00

issue

fix(router): don't cache file descriptors in Route.parse to prevent stale fd reuse (#27164)

2026-02-19 20:15:11 -08:00

brotli-reset-leak.test.ts

fix: memory leaks in error-handling code for Brotli, Zstd, and Zlib compression state machines (#25592)

2025-12-18 21:42:14 -08:00

issue23966.test.ts

Fix Buffer.isEncoding('') to return false (#23968)

2025-10-22 16:15:29 -07:00