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The fixture is generated in beforeAll against the local verdaccio registry and a loopback tarball server. It keeps the package-lock.json shapes the checked-in fixture had, except the git dependencies and sharp, and no longer installs from registry.npmjs.org, github.com, gitlab.com, bitbucket.org or GitHub Releases.
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Status: ready for review at 2f89e46. Supersedes #34687. Reproduced with outbound network removed ( |
WalkthroughThe migration test now creates a temporary complex workspace and lockfile, uses local registry and tarball sources, runs one ChangesWorkspace migration validation
Priority: ⬇️ Low Merge Risk: ⚪ Minimal · up to The generated workspace continues to exercise lifecycle execution with local package sources. The remaining cleanup is not a merge-blocking behavior risk. 🚥 Pre-merge checks | ✅ 4✅ Passed checks (4 passed)
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Inline comments:
In `@test/cli/install/migration/complex-workspace.test.ts`:
- Line 128: Update the generated postinstall fixture in the complex workspace
lifecycle test to invoke the inline bun command directly instead of requiring
postinstall.js; write the marker file from that command using the lifecycle
subprocess cwd, and preserve the existing lifecycle-execution assertion and
marker path.
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⛔ Files ignored due to path filters (1)
test/cli/install/migration/complex-workspace/package-lock.jsonis excluded by!**/package-lock.json
📒 Files selected for processing (15)
test/cli/install/migration/complex-workspace.test.tstest/cli/install/migration/complex-workspace/.gitignoretest/cli/install/migration/complex-workspace/bun-types/isfake.txttest/cli/install/migration/complex-workspace/bun-types/package.jsontest/cli/install/migration/complex-workspace/hello-0.3.2.tgztest/cli/install/migration/complex-workspace/package.jsontest/cli/install/migration/complex-workspace/packages/body-parser/isfake.txttest/cli/install/migration/complex-workspace/packages/body-parser/package.jsontest/cli/install/migration/complex-workspace/packages/lol-package/package.jsontest/cli/install/migration/complex-workspace/packages/second/package.jsontest/cli/install/migration/complex-workspace/packages/with-postinstall/.gitignoretest/cli/install/migration/complex-workspace/packages/with-postinstall/package.jsontest/cli/install/migration/complex-workspace/packages/with-postinstall/postinstall.jstest/cli/install/migration/complex-workspace/readme.mdtest/cli/install/migration/complex-workspace/reset.ts
💤 Files with no reviewable changes (13)
- test/cli/install/migration/complex-workspace/packages/body-parser/isfake.txt
- test/cli/install/migration/complex-workspace/bun-types/package.json
- test/cli/install/migration/complex-workspace/bun-types/isfake.txt
- test/cli/install/migration/complex-workspace/reset.ts
- test/cli/install/migration/complex-workspace/package.json
- test/cli/install/migration/complex-workspace/readme.md
- test/cli/install/migration/complex-workspace/packages/with-postinstall/postinstall.js
- test/cli/install/migration/complex-workspace/packages/second/package.json
- test/cli/install/migration/complex-workspace/.gitignore
- test/cli/install/migration/complex-workspace/packages/body-parser/package.json
- test/cli/install/migration/complex-workspace/packages/lol-package/package.json
- test/cli/install/migration/complex-workspace/packages/with-postinstall/.gitignore
- test/cli/install/migration/complex-workspace/packages/with-postinstall/package.json
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I reviewed this PR and didn't find any bugs. Because it hand-crafts a synthetic package-lock.json and reshapes which migration paths this suite exercises (dropping git/sharp coverage in favour of local fixtures), a human familiar with src/install/migration.rs should confirm the new lockfile shapes are equivalent coverage before merging.
What was reviewed:
- Hermeticity: all
resolvedURLs point at the local Verdaccio registry or the loopbackBun.serve;bar-0.0.2.tgzand every referenced registry package (a-dep,no-deps,is-number,@ types/is-number,two-range-deps) exist on disk. - Subprocess handling: pipes drained via
Promise.all, stderr asserted before exit-code,afterAllstops both server and registry. - Convention deltas:
setDefaultTimeout(5m)and the Windows--ignore-scriptsworkaround removed;tmpdirSync()was pre-existing in this file.
Extended reasoning...
Overview
This PR rewrites test/cli/install/migration/complex-workspace.test.ts to be fully hermetic and deletes the ~2,300-line checked-in fixture directory (a real npm package-lock.json referencing registry.npmjs.org, github.com, gitlab.com, bitbucket.org, plus sharp with its libvips download). The new test builds the workspace and a synthetic lockfileVersion-3 package-lock.json at runtime in a temp dir, serves every tarball from a local VerdaccioRegistry and a loopback Bun.serve({ port: 0 }), and asserts the resulting install tree. No production code is touched.
Security risks
None. The change is test-only, removes outbound network access rather than adding it, and binds only loopback servers on ephemeral ports. No credentials, no shell interpolation of untrusted data (the postinstall command uses JSON.stringify(bunExe())).
Level of scrutiny
Moderate. The mechanics are clean and follow the repo's harness conventions closely (VerdaccioRegistry, port: 0, concurrent pipe draining, afterAll cleanup, removal of the 5-minute default timeout and the Windows --ignore-scripts special case). What warrants a human look is not correctness of the code but coverage equivalence: the old fixture was a real 192-package npm-generated lockfile including git resolutions and sharp; the new one is a hand-authored ~30-entry lockfile that enumerates specific resolution shapes. The PR delegates git-resolution coverage to migrate.test.ts. Someone who owns src/install/migration.rs should sanity-check that the enumerated shapes (workspace links, file: folder/tarball, remote tarball, npm: aliases, scoped transitives, nested-nested entries, hasInstallScript, orphan dependencies entry) are the load-bearing set and that dropping the real-world lockfile doesn't lose an incidental edge case.
Other factors
The bug hunt ran to a dry streak with zero findings. I verified the referenced fixture assets exist (test/cli/install/bar-0.0.2.tgz and all Verdaccio packages named in the integrity table), and that pack() in test/harness.ts accepts the --destination argument used here. The remaining tmpdirSync() usage predates this PR and is widespread in test/cli/install/. The PR description states 25 tests pass in ~5s under bun bd test with outbound network removed, which is consistent with the diff.
…he complex-workspace fixture The original lockfile carried these through esbuild. optional-native and what-bin from the local registry stand in for it. Integrity values now come from the registry's checked-in manifests.
…ript shapes body-parser, the workspace that is linked under two names, gets a nested dependency again, which is the shape #38783 records this fixture catching. The registry's electron stands in for sharp as a default-trusted package whose install script runs, and lifecycle-postinstall is blocked and counted because the migrated entry has hasInstallScript. The header no longer claims every resolution shape. The file leaves test/flaky-tests.txt: its recorded symptom was the network install.
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Updated 7:42 PM PT - Sep 15th, 2026
✅ @robobun, your commit 2f89e46f6190494671b3720f756e0c43aa529c0a passed in 🧪 To try this PR locally: bunx bun-pr 42802That installs a local version of the PR into your bun-42802 --bun |
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On the coverage question from the review above: I compared the old npm-generated lockfile (211 entries) with the generated one field by field, and pushed 2f89e46 to close the gaps that had a reason to stay.
The PR description has the full table ("Shapes kept" and "Shapes dropped"). A reviewer who knows |
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No new blocking issues. 1 optional suggestion (a nit or a note on pre-existing code) was found and not posted. Nothing in this review needs a push before merging.
One verified lower-impact observation (a convention, logging or cleanup point) was not posted.
This branch has not been deployed
1 participant
Problem
test/cli/install/migration/complex-workspace.test.tsfailed on every retry in build 115503:sharp: Installation error: Status 500 Internal Server Error, thenerror: install script from "sharp" exited with 1. The script downloads libvips from GitHub Releases, which returned 500 for several hours.sharp. A failure of one host fails all 21 tests. There is no culprit commit: the fixture has used the network since it was added.Fix
beforeAllwrites the workspace and itspackage-lock.json. The registry packages come from the local verdaccio registry, with the integrity values of its checked-in manifests. The remote tarball comes from a loopbackBun.serve.sharpandesbuildscripts. The Notes say what stands in and what does not.test/flaky-tests.txtloses the file's entry. Its recorded symptom waserror: Failed to install, the network install.bun bd test(13 s), and three runs on Windows x64. On main the same run fails all 21 tests of the old file.Background
bun installin a directory that has apackage-lock.jsonand no bun lockfile converts the npm lockfile first (src/install/migration/npm_lock.rs). This test checks the tree that such an install produces.test/harness.tsfixes. Main already binds verdaccio to 127.0.0.1. The other one (VerdaccioRegistry.stop()sends signal 0, which never stops verdaccio) is not on main. test(harness): make VerdaccioRegistry.stop() actually terminate the process #36352 is open for it.Notes
Shapes kept, and the check that each one is live
body-parser,not-body-parser) with a dependency nested in it. #38783 records the old fixture catching the linker installing that nested package once per name.a-dep@1.0.3underpackages/body-parserosandcpu(esbuildand its 22 platform packages in the old file)optional-native@1.0.0andnative-foo-x64,native-foo-x86,native-bar-x64binwhat-bin@1.0.0.binlink)hasInstallScripton a package that is not trustedlifecycle-postinstall@1.0.0Blocked 1 postinstallis not printedsharp,esbuildin the old file)electron@1.0.0, whosepreinstallwritespreinstall.txtAlso kept from the first version of this PR: a workspace whose folder name is not its package name, a
file:folder with a self-namednpm:alias inside it, afile:tarball with a transitive registry dependency, a remote tarball URL,npm:aliases at the root and in a workspace, a scoped transitive (@types/is-number), four versions of one package that force nested installs, an entry twonode_moduleslevels deep, adependenciesreference with nopackagesentry (left-padnow,iconv-litebefore), and a workspacepostinstall.The
electronassertion shows that the script of a default-trusted package runs after a migration. It does not show thathasInstallScriptmigrated: with the flag removed from that entry the script still runs, because the installer reads the flag only for packages that are not trusted (src/install/PackageInstaller.rs:2038). Thelifecycle-postinstallrow is the check on the flag.Shapes dropped
bitbucket:,gitlab:twice, andgit+ssh://git@github.com), cloned over the network. The old test asserted one of them (install-test1) and had the others commented out.migrate.test.tsstill covers the migration of github, gitlab andgit+sshentries intobun.lockwithout an install (git hosts round-trip) and installs a migrated github entry from a local server (bun install silently drops a git dependency when migrating package-lock.json (exit 0, package count off by one) #40489). After this PR no test clones a migrated gitlab or bitbucket resolution.sharpandesbuildinstall scripts (a libvips download, a node-gyp fallback on Windows). They test those packages, not the migrator. The old file skipped all scripts on Windows for that reason. Scripts now run on every platform.engines,funding,deprecated, oneextraneousentry). Real npm-generated lockfiles are still migrated, without an install and without the network, by the 57npm-arboristfixtures (migrate.test.ts, registry on a port that refuses connections) and bycontoso-test(bun-pm.test.ts).migrate.test.tshas a case forextraneous. I left anextraneousentry out of this file because no assertion here could fail on it: the install also succeeds withextraneous: false.Other notes
package-lock.json.NOTE: ???. The new file asserts those cases: the self-named alias in thefile:folder resolves tono-deps@1.0.0, and the aliased workspace dependency resolves totwo-range-deps@1.0.0.test/cli/install/registry/packages/<name>/package.jsonat run time. The first version of this PR had nine of them copied into the test.HTTP_PROXY/HTTPS_PROXYunset in a container whose only other route is loopback.