## 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>
Replace `catch bun.outOfMemory()`, which can accidentally catch
non-OOM-related errors, with either `bun.handleOom` or a manual `catch
|err| switch (err)`.
(For internal tracking: fixes STAB-1070)
---------
Co-authored-by: Dylan Conway <dylan.conway567@gmail.com>
### What does this PR do?
Lets us write and run unit tests directly in Zig.
Running Zig unit tests in CI is blocked by https://github.com/ziglang/zig/issues/23281. We can un-comment relevant code once this is fixed.
#### Workflow
> I'll finish writing this up later, but some initial points are below.
> Tl;Dr: `bun build:test`
Test binaries can be made for any kind of build. They are called `<bun>-test` and live next to their corresponding `bun` bin. For example, debug tests compile to `build/debug/bun-debug-test`.
Test binaries re-use most cmake/zig build steps from normal bun binaries, so building one after a normal bun build is pretty fast.
### How did you verify your code works?
I tested that my tests run tests.
* remove while loops where a for would be more efficient
* this needs to be a stack copy
* this can use the better loop
* this was translated wrong
---------
Co-authored-by: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>
* all: make bun.FileDescriptor a unique type
# Conflicts:
# src/bun.js/api/bun/socket.zig
# src/bun.js/api/bun/spawn.zig
# src/deps/uws.zig
* need this change too
* convert another bun.FD.asDir call
* more fixes + linux
* fix this size
* accidentally flipped these fd numbers
* more fixes + windows
# Conflicts:
# src/deps/uws.zig
* dont include type name in serialization
* add another TODO
* resolve review comments
* address more pr comments
* build fixes post-rebase
* another rebase fix
---------
Co-authored-by: Jarred Sumner <jarred@jarredsumner.com>
* chore: upgrade zig to 0.12.0-dev.1828+225fe6ddb
* open as iterable
* fix building identifier cache
* fix windows build
* fix linux build
* fix linux build
* Add pretty printers for `Headers`, `URLSearchParams`, and `FormData`
* [untested] Add way to code generate getInternalProperties
* bump
* Bump Webkit
* Ref the event loop while loaded
* wip
* checkpoint
* another checkpoint
* The code has been written
* Fixup exports
* Fix all the errors
* Fix bug
* [console.log] Fix bug when printing non-reified types missing values
* Fix loading hash table
* fix plugin
* Fix ref & unref
* auto-unref
* various fixes
* Update bun.zig
* Set toStringTag
* Delete code for macro JSX
* Delete code for `bun dev` HTTP JS
* Move Bun.serve to C++ API
* Delete JSC C API code
* ✂️💀 code
* Use JSC C++ for `confirm`, `Crypto`, `prompt`, `alert`
* more dead code
* Update exports.zig
* Use JSC C++ API for FFI
* Remove remaining usages
* Remove remaining usages
* Update ffi.ts
* Update InternalModuleRegistryConstants.h
* draw the rest of the owl
* Update webcore.zig
* bind it
* Fix performance regression in crypto.randomUIUD()
* Update js_parser.zig
---------
Co-authored-by: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>
* One possible implementation to make `Bun.build` work better
* Pass allocator in
* Make our temporary buffers a little safer
* rename
* Fix memory corruption in symbol table
* Add support for deferred idle events in ThreadPool
* Free more memory
* Use a global allocator FS cache
* more `inline`
* Make duping keys optional in StringMap
* Close file handles more often
* Update router.zig
* wip possibly delete this commit
* Fix memory issues and reduce memory usage
* > 0.8
* Switch to AsyncIO.Waker and fix memory leak in JSBundleCompletionTask
* We don't need to clone this actually
* Fix error
* Format
* Fixup
* Fixup
---------
Co-authored-by: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>
