publish: honor publishConfig.registry and publishConfig["@scope:registry"] - #38322
publish: honor publishConfig.registry and publishConfig["@scope:registry"]#38322robobun wants to merge 4 commits into
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…try"] bun publish read only publishConfig.tag and publishConfig.access, so a package pinned to a registry with publishConfig.registry was uploaded to the default registry instead, with that registry's token, and the summary printed the default registry. The two registry keys now mean what they mean in npm: `registry` replaces the default registry (a registry configured for the package's scope still takes precedence, and --registry overrides the key) and `@scope:registry` replaces the scope's registry. scope_for_package_name then picks the registry for the upload, the summary line and dist.tarball as before. The replaced registry's credentials are not carried over to the new URL unless it is same-origin, matching what --registry already did. Instead the .npmrc `//host/path/:` lines are kept (BunInstall::registry_credentials) so the new URL gets the credentials configured for it; a configured registry with the same URL supplies its credentials too. --registry goes through the same path, so it also picks up the credentials .npmrc configures for the registry it names. Both publish entry points (directory and tarball) read publishConfig through one Options::apply_publish_config.
WalkthroughChangesAdds Publish registry configuration
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Updated 2:05 AM PT - Aug 14th, 2026
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I reviewed this PR and the automated bug hunt found no issues. Because it changes which registry bun publish uploads to and which credentials are attached — including a refactor of .npmrc credential retention and a behavior change to --registry — a human look at the credential-routing and precedence semantics would still be worthwhile.
What was reviewed:
- Credential carry-over in
scope_for_registry_url: same-host required and https→http downgrade blocked, matching the pre-existing--registryguard it replaces. - Invalid
publishConfig.registryvalues hard-error rather than silently falling back; tests assert nothing is sent to either registry on failure. - The
.npmrcloader refactor (apply_conf_item,credentials_entry) — decode-failure lines are now dropped once at their source file instead of re-reported per matching registry. leak_staticon the bump-ownedtagstring inapply_publish_configfixes a pre-existing lifetime hole in thepack_command.rspath.
Extended reasoning...
Overview
This PR implements publishConfig.registry and publishConfig["@scope:registry"] for bun publish (fixing #18670). It touches: the .npmrc loader (src/ini/lib.rs, ~130 lines refactored to retain all //host/path/: credential lines and dedupe the option-to-field match into apply_conf_item), PackageManagerOptions.rs (~180 new lines: scope_for_registry_url, set_default_registry, set_scope_registry, apply_publish_config, plus rewiring --registry through the same helper), the BunInstall schema (new registry_credentials field), both publishConfig call sites in pack_command.rs/publish_command.rs (consolidated into the shared reader), docs, and 14 new test cases against in-process mock registries.
Security risks
This is credential-routing code. The core risk is sending a token to the wrong registry — either publishing a package to the wrong host, or leaking one registry's token to another. The design guards against this: cross-origin credential carry-over is blocked (same-host required, https→http refused), and an unusable publishConfig.registry value is a hard error rather than a silent fallback. The tests assert both the positive (correct registry receives the PUT with its own token) and negative (the other registry receives nothing; on missing auth, neither receives a request). One behavior change worth a maintainer's eye: --registry X now picks up .npmrc //X/:_authToken= credentials it previously ignored — this matches npm and is arguably a fix, but it is a change to what credentials get sent where.
Level of scrutiny
High. Per the repo's own review rules on security ("Never carry credentials across an https→http downgrade", "security checks fail closed"), registry/credential selection is exactly the kind of path that needs a maintainer to confirm the precedence model (npm's pickRegistry semantics: registry replaces the default only, scope registry still wins, @scope:registry in publishConfig replaces that). The PR description is thorough and the test matrix is strong, but the design choice of how credentials are looked up (URL-hash match on configured scopes → .npmrc lines → same-origin carry-over) and its interaction with the two open PRs it mentions (#33869, #34329) are decisions a human should sign off on.
Other factors
- The
.npmrcrefactor changes error-reporting behavior for malformed_auth/_passwordlines (now reported once at the correct source file, dropped from subsequent processing) — an intentional improvement documented in the PR notes, but still a behavior change to shared install-path code. apply_publish_configmutatesOptions.scope/Options.registriesfor the wholePackageManager, not just publish — for a one-shotbun publishprocess this is fine, but it's worth confirming no other consumer reads those afterapply_publish_configruns.- No prior human or bot reviews on this PR; CI build was still running at the time of this review.
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On the two points raised above:
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Actionable comments posted: 3
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Inline comments:
In `@src/install/PackageManager/PackageManagerOptions.rs`:
- Around line 305-317: Update the environment-variable registry handling in load
to call set_default_registry instead of duplicating the host comparison and
HTTPS-to-HTTP guard inline. Reuse scope_for_registry_url and the
already-populated self.registry_credentials so BUN_CONFIG_REGISTRY,
NPM_CONFIG_REGISTRY, and npm_config_registry resolve credentials consistently
with --registry and publishConfig.registry.
- Around line 275-284: Update the registry scope resolution around Scope::hash
to normalize auth-suffixed URLs through Scope::from_api before hashing and
fallback construction. Ensure lookup uses the normalized registry URL and
preserves the extracted _authToken, while retaining the existing
configured-scope reuse behavior.
In `@src/runtime/cli/pack_command.rs`:
- Around line 1940-1946: After the lifecycle-script package.json re-read and
manifest refresh in the ran_scripts path, call
ctx.manager.options.apply_publish_config again using the updated json.root,
bump, package_name, and environment. Ensure this occurs before final registry
selection so changes to publishConfig.registry or package scope are applied from
the final manifest.
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Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
- Create a new PR with the fixes
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📒 Files selected for processing (8)
docs/pm/cli/publish.mdxdocs/snippets/cli/publish.mdxsrc/ini/lib.rssrc/install/PackageManager/PackageManagerOptions.rssrc/options_types/schema.rssrc/runtime/cli/pack_command.rssrc/runtime/cli/publish_command.rstest/cli/install/bun-publish.test.ts
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I reviewed this PR and the automated bug-hunting pass found no issues. Because it changes credential routing for bun publish (which registry receives the tarball and which token is sent with it) and refactors the .npmrc loader used by bun install as well, a human look at the credential-inheritance rules and npm-compat semantics would still be worthwhile.
What was reviewed:
scope_for_registry_urlcredential resolution order (configured registry →.npmrc//host/path/:lines → same-origin carry-over with the https→http downgrade guard).- The
load_npmrcrefactor: the two option-to-field matches collapsed intoapply_conf_item, undecodable lines now reported once and dropped, and the deletedhostnamecomparison. - The "re-apply
publishConfigafter lifecycle scripts rewritepackage.json" concern was examined and ruled out — npm readspublishConfigfrom the pre-script manifest as well, and the existing re-read only refreshes name/version/private.
Extended reasoning...
Overview
This PR makes bun publish honor publishConfig.registry and publishConfig["@scope:registry"] (fixes #18670). It touches: the .npmrc loader (src/ini/lib.rs — refactored to keep every //host/path/: credential line in a new registry_credentials list and to share a single apply_conf_item helper), PackageManagerOptions (new scope_for_registry_url/set_default_registry/set_scope_registry/apply_publish_config, plus rerouting the --registry flag through the same helper), the BunInstall schema (new registry_credentials field), both publish entry points (pack_command.rs and publish_command.rs now call the shared apply_publish_config), 14 new tests against in-process mock registries, and docs.
Security risks
This is credential-routing code. The rules it introduces decide which auth token is attached to a publish request and which host receives it: an already-configured registry with the same URL wins, else .npmrc //host/path/: lines naming the URL, else the replaced registry's credentials only when same-host and not an https→http downgrade. An error in these rules could send a token to the wrong registry or publish a package to the wrong place. The tests do assert that the wrong registry receives nothing and that missing credentials fail closed with "missing authentication", and the downgrade guard is preserved from the pre-existing --registry handling — but the semantics (particularly whether "same host" is the right bar for carry-over vs. npm's path-walk) are a design choice a maintainer should confirm.
Level of scrutiny
High. Beyond the security surface, the .npmrc loader refactor changes behavior for the whole package manager (install included), not just publish: bad-line reporting now happens once at parse time rather than once per matched registry, undecodable lines are dropped from configs, and the extra hostname comparison in the scoped-registry match was removed. The PR description argues each of these is a strict improvement or a no-op, and I did not find a counterexample, but the loader is subtle and shared.
Other factors
- The test coverage is thorough (both entry points, dry-run, no-credentials fail-closed, same-registry pin, same-origin carry-over,
--registryprecedence, scope precedence,@scope:registryoverride, four invalid-value error shapes) and asserts on the exact requests each mock registry receives. - Outstanding bot comments: comment-cop flagged long comments (addressed in bf5fbac/ca962ce9); CodeRabbit suggested reusing
scope_for_registry_urlfor the env-var registry block (a follow-up refactor, not a bug) and re-applyingpublishConfigafter lifecycle scripts (examined and ruled out this run). - The PR description notes overlap with #33869 (npm path-walk rewrite of the same loader) and #34329 (tarball-host auth list) — a maintainer may want to weigh sequencing.
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Status: ready for review. The diff has not changed since the first push apart from shortening comments (bf5fbac, ca962ce); all review threads are resolved. CI on the last two builds (95302, 95436): the new |
2 participants
Fixes #18670
Problem
bun publishignorespublishConfig.registry: the tarball is uploaded to the default (or@scope:) registry, with that registry's token, and the summary prints that registry (Registry: <default>), so nothing looks off.publishConfig.tagand.accessare honored, only.registryis dropped.publishConfigreaders (src/runtime/cli/pack_command.rsforbun publish,src/runtime/cli/publish_command.rsfrom_tarball_pathforbun publish x.tgz) only readtagandaccess;publish()andnormalized_package()then takemanager.scope_for_package_name(name), which only knows the configured registries..npmrc//host/path/:_authToken=lines for a registry that is not the default or a scoped registry were parsed and thrown away (src/ini/lib.rs), so that is the configuration Cannot publish to custom registry, npm can with the same config #18670 describes (publishConfig.registry+ a//.../:_authTokenline for it).Fix
Options::apply_publish_config(src/install/PackageManager/PackageManagerOptions.rs) is the singlepublishConfigreader for both entry points. It keeps thetag/accesshandling and adds the registry keys, with npm's meaning (npm-registry-fetch'spickRegistry):registryreplaces the default registry, so a registry configured for the package's scope still takes precedence over it, and@scope:registryreplaces that one.--registryon the command line overridespublishConfig.registry(npm dropspublishConfigkeys that were set on the command line).scope_for_package_namethen picks the registry, so the upload, theRegistry:line anddist.tarballall follow it.http(s)://, the same rule as--registry) is an error, since silently falling back to another registry is the bug being fixed.Options::scope_for_registry_url), in order: a registry configured in bunfig.toml/.npmrc with the same URL (so a package pinning the registry it already uses keeps working unchanged, including--token/NPM_CONFIG_TOKEN); else the.npmrc//host/path/:lines naming the URL; else the replaced registry's credentials, but only when the URL is same-origin with it and not an https to http downgrade. That last rule is the existing--registrybehavior, moved into the helper; with a different host and nothing configured the publish fails with the existingmissing authenticationerror and nothing is sent anywhere.load_npmrcnow keeps every//host/path/:line inBunInstall::registry_credentials(oneNpmRegistryper registry named), copied intoOptionsbyload().bun_ini::credentials_for_registrylooks a URL up with the same host + pathname rule the loader already used for scoped registries (names_registry, now shared); it only returns entries that supply a token or a username + password pair, as npm'shasAuthdoes.--registrygoes through the same helper, sobun install/publish --registry Xnow also gets the credentials.npmrcconfigures for X (previously it only kept the default registry's credentials when X was same-origin). Otherwise its behavior is unchanged.test/cli/install/bun-publish.test.ts,describe("publishConfig registry"), 14 cases against in-process mock registries that record every request: directory and tarball publish land on the pinned registry with its own token and nothing reaches the configured one,--dry-runreports it, no credentials means no request to either registry, pinning the already-configured registry keeps its bunfig token, same-origin carry-over,--registryprecedence,--registrypicking up.npmrccredentials, scope registry precedence,@scope:registryoverride, and the four invalid-value errors. 10 of them fail on the unfixed build (USE_SYSTEM_BUN=1); the 4 that pass either way pin precedence/compatibility.bun-publish.test.ts,npmrc.test.ts,redacted-config-logs.test.ts,bun-pack.test.ts, the whoami tests inbun-install-registry.test.ts, and the npmrc/registry tests inbun-install.test.ts(itsshould support --registry CLI flagfails identically on the unmodified release binary in this container because its server bindslocalhostand resolution differs; unrelated).Background
Scope(npm::registry::Scope) is bun's resolved registry: URL, URL hash, and credentials (token, orauth/userfor basic auth).Options.scopeis the default registry andOptions.registriesthe@scope:registryones;scope_for_package_namepicks between them, andbun publishalready used it for the upload URL, the summary anddist.tarball, which is why pointing it at the pinned registry fixes all three..npmrcexpresses credentials per URL, not per registry://host/path/:_authToken=Tapplies to whichever registry has that host and path. The loader applied these lines to the default and scoped registries at load time and discarded them;publishConfig.registry(and--registry) name a registry after loading, hence the kept list.publishConfigis flattened over the config, sopublishConfig.registryis literally theregistrysetting andpickRegistrystill prefers@scope:registry; that is why the GitLab/npm docs tell scoped packages to setpublishConfig["@scope:registry"], and why both keys are implemented here.Notes for review
src/ini/lib.rs: the two copies of the option-to-field match collapsed intoapply_conf_item. Each line is now applied to itsregistry_credentialsentry first, in the file it came from, and a line that fails to decode is reported there once and dropped; previously a bad line was reported once per registry it matched, and again (against the wrong file) on every later.npmrc, or not at all if it matched nothing. The extrahostnamecomparison in the scoped-registry branch was dropped:URL::parsederiveshostnamefromhost, so equal hosts always had equal hostnames.ConfigItem::dupelost its only caller (the iterator already returns an owned item) and is deleted.tarball_url_auth);registry_credentialsholds every line, so it could serve that too.publish()still reportsmissing authenticationwhen the only credentials areusername/_passwordor_authfrom.npmrc(it checkstokenbut notauth); that is a separate, pre-existing bug (fix(publish) Support split npmrc auth for publish #26178 was an earlier attempt) and is being handled separately.BUN_CONFIG_REGISTRY/NPM_CONFIG_REGISTRYblock inOptions::loadstill resolves credentials inline (only the same-origin token carries over) rather than through the new helper, since moving it changes what those registries send; andpublishConfigis read before the lifecycle scripts and not again afterpack()re-reads package.json, as was already the case fortagandaccess(honoring script edits needs command-line provenance tracked for every key, asregistry_from_command_linedoes for the registry).Repro (two loopback registries; before/after)
Before:
Registry: http://127.0.0.1:A/, A receivesPUT /@corp%2fsecretpkgwithauthorization: Bearer TOKEN_A, B receives nothing.After:
Registry: http://127.0.0.1:B/, B receives the PUT withBearer TOKEN_B, A receives nothing. Without theBtoken line:error: missing authentication, and neither registry receives a request.no test proof · iteration 1 · Platform-specific test(s) that do not run on this machine. Deferring to CI, which covers all platforms: test/cli/install/bun-publish.test.ts