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Updated 4:50 AM PT - Oct 20th, 2026
❌ @robobun, your commit ff21faa has 2 failures in
🧪 To try this PR locally: bunx bun-pr 45955That installs a local version of the PR into your bun-45955 --bun |
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Status Reproduced on a debug build of main (0973e69, and again on 6f58f6b), and with the older message text on 1.3.13 and 1.4.2. The project has
On this branch the error starts its own line. The 6 new tests in PR: #45955 |
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WalkthroughPatch-install failure paths now end the progress bar before reporting errors. New CLI tests cover missing and empty patches, patch-directory creation failure, and terminal progress output. ChangesPatch install error output
Suggested reviewers: Priority: ⬇️ Low Merge Risk: ⚪ Minimal · up to
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| Check name | Status | Explanation |
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| Title check |  |
The title clearly and concisely describes the primary change: ending the progress line before reporting missing or unreadable patch-file errors. |
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The description explains the problem, fix, testing, limitations, and design considerations. It does not use the exact template headings, but it provides the required change summary and verification de… |
| Linked Issues check | |
Check skipped because no linked issues were found for this pull request. |
| Out of Scope Changes check | |
Check skipped because no linked issues were found for this pull request. |
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The description explains the problem, fix, testing, limitations, and design considerations. It does not use the exact template headings, but it provides the required change summary and verification details.
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Inline comments:
Review comments at @test/cli/install/bun-patch.test.ts:
- Line 3547: Update the parameterized test block beginning with test.each to run
its independent cases concurrently using the test framework’s concurrent test
API, while preserving the existing cases and respecting any shared TestRegistry
constraints.
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src/install/patch_install.rstest/cli/install/bun-patch.test.ts
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Nothing blocking. The comments below are optional suggestions. There is no need to push a fix for them before merging.
Additional findings (outside the current diff — GitHub can't attach inline comments there):
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src/install/patch_install.rs— Pre-existing sibling: a user whose patch file fails to apply still seesfailed to apply patchfile (...)glued onto the progress line, while the missing and empty cases now get their own line. The error is fatal too (runTasks.rs:522 returnsInstallFailed, patchPackage.rs:1199 crashes), but run_from_main_thread_apply at patch_install.rs:300-308 prints without ending the bar. Fix: end the bar before every fatal PatchTask print, including this arm; since this arm returns Err instead of exiting, FinishPass::drop (runTasks.rs:299) restarts the bar on unwind, so the install-failure handler must also not redraw it after the error. [also at: src/install/patch_install.rs:339 - Users whose lockfile cannot be written still get the fatal error glued onto a progress line after this merges, while the two patch-file errors now get their own line. save_lockfile starts aSaving lockfilebar at src/install/PackageManager/PackageManagerDirectories.rs:1351, then save_to_disk printsfailed to write lockfile(src/install/lockfile.rs:2191) orFailed to replace old lockfile with new lockfile on disk(lockfile.rs:2206) and calls Global::crash with the bar still on.]Why this was flagged
A project has a patch in patchedDependencies whose contents no longer apply to the package; bun install runs with the progress bar on. The apply task completes with apply.logger.errors > 0 and PatchTask::run_from_main_thread_apply (src/install/patch_install.rs:300-308) prints
failed to apply patchfile (...)while the Installing/Resolving bar line is still open, so the error starts on the bar line exactly as the missing-file error did on the base branch. The install then fails: src/install/PackageManager/runTasks.rs:520-522 returns Err(crate::Error::InstallFailed). The PR adds manager.end_progress_bar() only to the two CalcHash arms (patch_install.rs:202 and :339); this third fatal patch-file arm is left as on base and is not among the sites the PR description lists as intentionally excluded. Adding end_progress_bar() alone here is not enough because the Err return unwinds through FinishPass::drop (runTasks.rs:298-318), which calls start_progress_bar_if_none() and redraws a bar after the error.Verification: Pre-existing.
PatchTask::run_from_main_thread_apply(src/install/patch_install.rs:296-309) onapply.logger.errors > 0callsOutput::err_generic("failed to apply patchfile ({})", ...)with nomanager.end_progress_bar()call, unlike the two CalcHash arms the PR fixed at lines 202 and 339.run_tasksthen returnsErr(crate::Error::InstallFailed)at src/install/PackageManager/runTasks.rs:522.
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About the two sites in the review comment above (
Both need the shared mechanism that the Notes describe. That is a change in |
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LGTM — the new push addresses the earlier note on the PTY test (it now sets BUN_INSTALL_PROGRESS=1, so the bar no longer depends on the runner's CI variables), and the two-call fix is small and matches the sibling exit sites.
What was reviewed:
end_progress_bar()at the top ofcrash_on_missing_patchand theNonearm ofrun_from_main_thread_calc_hash(src/install/patch_install.rs:202, :339): it returns early whendownloads_nodeisNone, so the calls are safe on the bar-off and--silentpaths and when the bar was already ended.- The ordering in
crash_on_missing_patch: the call precedeswrite_pending_patch/flush, which print andGlobal::crash()on their own (the--commit --patches-dir=package.json/patchestest exercises that). - Test ability to fail:
shownLinesstrips exactly theESC[nD ESC[0Kerase pairProgress::clear_with_held_lockemits, and on an unfixed build theerror:line still carries theResolving [n/m]prefix, so thetoEqual([error])assertions fail there;BUN_INSTALL_PROGRESSis read first indefault_disable_progress_bar, ahead of theis_ci()checkbunEnvwould otherwise trip. - Sibling print sites that still start on the progress line are enumerated and intentionally excluded in the description; they need a different mechanism since the install continues after them.
Extended reasoning...
The change adds two manager.end_progress_bar() calls in src/install/patch_install.rs on the fatal missing/empty/unreadable patch file paths, plus ~90 lines of tests in test/cli/install/bun-patch.test.ts covering the pipe (with and without colors), a pending --commit whose patches dir cannot be created, and a pseudo-terminal run. It touches no security-sensitive surface: no auth, parsing of untrusted data, or path handling is changed. The fix is three lines, idempotent by construction, and follows the same pattern as the other end_progress_bar callers in src/install; the prior inline finding about the PTY test's environment is addressed in the pushed version, the bug hunt ran dry, and no CODEOWNERS entry covers the changed files.
…ile is reported The progress bar leaves the cursor at the end of its line. When a patchedDependencies patch file is missing, empty or unreadable, the install prints its error and exits from inside run_tasks, where no caller can end the bar. The error started on the progress line: Resolving [1/2] error: patch file not found: 'patches/basic-1@1.0.0.patch' Both exits of PatchTask::run_from_main_thread_calc_hash now call end_progress_bar() first. In crash_on_missing_patch the call is the first statement, because write_pending_patch and package_json_write_back::flush print and exit on their own failures.
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Problem
Resolving [1/2] error: patch file not found: 'patches/basic-1@1.0.0.patch'. An empty or unreadable patch file does the same.PatchTask::run_from_main_thread_calc_hash(src/install/patch_install.rs:333) print and exit insiderun_tasks. Nothing ends the bar thatresolve_pending_tasksstarted.--linker=isolatedthe default forbun install#23311 removed theProgress.logcall that feat:bun patch#11470 used here. No user reported it.Fix
manager.end_progress_bar()before they print. The call does nothing when no bar is on.crash_on_missing_patchthe call comes first:write_pending_patchandpackage_json_write_back::flushalso print and exit.test/cli/install/bun-patch.test.ts(6 new tests, all fail on main) andbun-install-patch.test.ts.Background
src/bun_core/Progress.rs) is on when stderr is a terminal outside CI. It leaves the cursor on its line.end_progress_bar()erases that line.bun_core: it adds progress state to every command's output path. ConsideredProgress::logas in feat:bun patch#11470: the bar line stays above the error.Downsides
Saving lockfile... EISDIR: ...(Notes)..text: +768 bytes (llvm-size -A), all in the two exits. A healthy install makes the same 3 stderr writes as main.BUN_INSTALL_PROGRESS=1on a pipe without colors, two progress lines precede the error.Notes
What stderr holds, bar on
[n/m]numbers vary between runs. The tests do not assert them.end_progress_bar()erases the line when stderr is a terminal, with or without colors. On a pipe the bar is on only withBUN_INSTALL_PROGRESS=1. There it erases if colors are forced on, and writes a newline otherwise.bun patch --commit basic-1 --patches-dir=package.json/patches, while the patch file of another package is missing, printedResolving [1/2] ENOTDIR: Not a directory: failed to make patches dir "package.json/patches" (mkdir)on main. This is the reason for the position of the first call. One test covers it.--silentprints nothing, as before. The exit code is 1 in every case, as before.Resolving [1/1] error: Couldn't find patch file: .... The last release without Make--linker=isolatedthe default forbun install#23311 is 1.2.23.Measurements (linux x64, main 0973e69 against the same commit with this change)
node_modules, warm cache):end_progress_bar()called 1 time on main and 1 time on the PR (gdb hit count, debug build, 3 runs each, identical).text: 81,315,157 -> 81,315,925 bytes, +768 (llvm-size -A)..rodataand.datado not change. The file size does not change (106,850,016 bytes)crash_on_missing_patch716 -> 1,031 B,PatchTask::run_from_main_thread3,751 -> 3,763 B, and one new out-of-line copy ofend_progress_barof 323 B (llvm-nm -S). On main every caller inlines itresolve_pending_tasks,run_tasks_erased(holdsFinishPass::drop),start_progress_bar,install_with_manager,install_hoisted_packages,install_isolated_packages: 0 differing instructions between main and PR (llvm-objdump, addresses masked)error:is a space on main and\non the PR (missing and empty patch file, NO_COLOR pipe)patchesis a file), each withCI=1,--no-progressand--silent(cmp, debug builds)Tests
BUN_INSTALL_PROGRESS=1: a missing and an empty patch file, each with and without colors. The test harness setsCI=1, which turns the bar off.bun installon a pseudo terminal, also withBUN_INSTALL_PROGRESS=1. There the bar erases its line with or without colors.--commitcase above.Resolving [1/2] error: ....bun-patch.test.ts(224 pass, 5 skip, all Windows only) andbun-install-patch.test.ts(53 pass) on a debug build. Not run: macOS, Windows.Other designs weighed
Global::exit. The error for an empty or unreadable patch file is written before the exit, in separate writes, so that arm stays on the progress line.PackageManagerEnqueue.rs:3345), still fails under the bar.resolve_pending_tasks. An exit insiderun_tasksnever returns there.Not changed: other messages that start on the progress line
These need another mechanism, so they are not in this PR. The lines are from a debug build of this branch (main 5900354 plus this change), with
BUN_INSTALL_PROGRESS=1 NO_COLOR=1and stderr in a pipe. Each state ran 3 times.bun.lockis a directorySaving lockfile... EISDIR: Is a directory: Failed to replace old lockfile with new lockfile on disk (rename)file:dependency whose package.json does not parse, beside a registry dependencyResolving [1/1] 1 | { "name": "dep", oopsResolving [1/1] git clone file:///tmp/no-such-repo.gitRetry-After: 1oncebasic-1 [1/1] warn: registry asked to wait 1s before retrying--cafilenames a file that does not existResolving [1/1] HTTPThread: could not find CA file: '/nonexistent/ca.pem'--cafilestate: another thread prints the message. In the other 2 runs the message came first, and the process leftResolving [1/1]with no line end.🔍 Resolving [1/1] error: "git clone" for ... failed(issues 17624, 20647 and 28813).Where they come from:
replace_in_cwd(src/install/lockfile.rs:2205), whichLockfile::save_to_diskcalls. It runs under theSaving lockfilebar thatsave_lockfilestarts (src/install/PackageManager/PackageManagerDirectories.rs:1358).Package::parse(src/install/lockfile/Package.rs:1797).report_failure(src/install/git_runner.rs:1524). The install continues after it.src/install/retry_timer.rs:77). It usesProgress::log(src/bun_core/Progress.rs:613), which draws the bar again and then writes the message after it.http_thread_on_init_error(src/install/PackageManager.rs:1519), on the HTTP thread.Other code that prints while a bar is on has the same problem. I did not get these onto a progress line with a fast local registry:
run_tasks(src/install/PackageManager/runTasks.rs:1174) andfailed to apply patchfile(src/install/patch_install.rs:296). In my runs they printed after theResolvingbar had ended and before the bar of the install phase was drawn. That bar is drawn only after 500 ms (initial_delay_ns,src/bun_core/Progress.rs).resolve_pending_tasks(src/install/PackageManager/install_with_manager.rs:2243-2259). They skip itsend_progress_bar()at:2263.Why
end_progress_bar()does not fit them:run_tasksstarts the bar again when it returns (FinishPass::drop,src/install/PackageManager/runTasks.rs:291).end_progress_bar()does nothing for theSaving lockfilebar (src/install/PackageManager/ProgressStrings.rs:146), andsave_to_diskhas noPackageManager.A fix for all of them needs one shared mechanism in
bun_core. I see two shapes.Progress::logcan erase the bar line, write the message, and let the next refresh draw the bar again. Or the stderr writer can clear an open progress line before it writes. That choice belongs to a maintainer, so it is not in this PR.History
bun patch#11470 printed this error throughProgress.logwith a leading\n\nwhen the bar was on. Make--linker=isolatedthe default forbun install#23311 moved the message into the worker's log and dropped that call.no test proof · iteration 0 · platform-specific test(s) that do not run on this machine, deferring to CI, which covers all platforms: test/cli/install/bun-patch.test.ts