bun publish

bun publish packs your package into a tarball and strips catalog and workspace protocols from the package.json, resolving versions if necessary. It then publishes to the registry specified in your configuration files or in the package's publishConfig. Both bunfig.toml and .npmrc files are supported.

## Publishing the package from the current working directory
bun publish

bun publish v1.3.3 (ca7428e9)

packed 203B package.json
packed 224B README.md
packed 30B index.ts
packed 0.64KB tsconfig.json

Total files: 4
Shasum: 79e2b4377b63f4de38dc7ea6e5e9dbee08311a69
Integrity: sha512-6QSNlDdSwyG/+[...]X6wXHriDWr6fA==
Unpacked size: 1.1KB
Packed size: 0.76KB
Tag: latest
Access: default
Registry: http://localhost:4873/

 + publish-1@1.0.0

To pack and publish separately, run bun pm pack, then bun publish with the path to the output tarball.

bun pm pack
...
bun publish ./package.tgz

--recursive and --filter

In a monorepo, --recursive (-r) publishes the root package and every workspace package, dependencies before their dependents. --filter (-F) does the same for the matching workspace packages only.

bun publish --recursive
bun publish --filter "@acme/*"

Packages that are "private" or whose version is already on the registry are skipped. Every package is packed before the first one is published, and the first failure ends the run; running the command again skips what was published.

--access

--access sets the access level of the package being published, either public or restricted. Unscoped packages are always public, and publishing an unscoped package with --access restricted is an error.

bun publish --access public

You can also set --access in the publishConfig field of your package.json.

{
  "publishConfig": {
    "access": "restricted"
  }
}

--tag

Set the tag of the package version being published. By default, the tag is latest. The initial version of a package is always given the latest tag in addition to the specified tag.

bun publish --tag alpha

You can also set --tag in the publishConfig field of your package.json.

{
  "publishConfig": {
    "tag": "next"
  }
}

A prerelease version such as 2.0.0-beta.1 needs a tag: without one it would become latest, the version bun add installs. To publish it as latest anyway, pass --tag latest.

A tag cannot be a version or a version range, such as 1.2.3 or v1.

publishConfig.registry

A package can pin the registry it is published to in the publishConfig field of its package.json, regardless of the registry configured for installs. --registry on the command line still overrides it.

{
  "name": "internal-package",
  "publishConfig": {
    "registry": "https://registry.myorg.example/"
  }
}

As in npm, publishConfig.registry replaces the default registry only. A registry configured for the package's scope (@myorg:registry in .npmrc, or [install.scopes] in bunfig.toml) still takes precedence over it; to replace that one, set the scope's key in publishConfig instead:

{
  "name": "@myorg/package",
  "publishConfig": {
    "@myorg:registry": "https://registry.myorg.example/"
  }
}

Credentials are the ones configured for that registry, the same as when it is the default registry: a //registry.myorg.example/:_authToken=... line in .npmrc, or a registry with the same URL in bunfig.toml or .npmrc. When there are none, the credentials of the registry the package would otherwise have been published to are used only if the pinned registry has the same origin; otherwise bun publish fails with a missing authentication error instead of sending them to a different registry.

As in npm, publishConfig is read like the name and the version: from the package.json that the prepublishOnly, prepack and prepare scripts leave behind.

--dry-run

--dry-run runs the publish process without publishing the package, so you can verify what would be published.

bun publish --dry-run

--tolerate-republish

Exit with code 0 instead of 1 if the package version already exists. Useful in CI/CD where jobs may be re-run.

bun publish --tolerate-republish

--gzip-level

Set the gzip compression level used when packing the package, from 0 to 9 (default 9). Only applies to bun publish without a tarball path argument.

--auth-type

If you have 2FA enabled for your npm account, bun publish prompts you for a one-time password, either through a browser or in the CLI. --auth-type tells the npm registry which method you prefer: web (the default) or legacy.

bun publish --auth-type legacy
...
This operation requires a one-time password.
Enter OTP: 123456
...

--otp

Provide a one-time password directly to the CLI. If the password is valid, bun publish skips the extra one-time password prompt before publishing:

bun publish --otp 123456

--provenance

bun publish cannot generate provenance statements yet: --provenance, --provenance-file, "provenance": true in publishConfig, NPM_CONFIG_PROVENANCE=true and provenance=true in .npmrc are errors, so that a package is never published without the statement it asked for.

A setting that turns provenance off is fine. As in npm, the command line wins over publishConfig, publishConfig over the environment, and the environment over .npmrc:

bun publish --no-provenance # or --provenance=false

CLI Usage

bun publish dist

Publishing Options

bun publish --access public

{
  "publishConfig": {
    "access": "restricted" // [!code ++]
  }
}

bun publish --tag alpha

{
  "publishConfig": {
    "tag": "next" // [!code ++]
  }
}

bun publish --dry-run

bun publish --recursive

bun publish --filter "@acme/*"

bun publish --auth-type legacy
...
This operation requires a one-time password.
Enter OTP: 123456
...

bun publish --otp 123456

Registry Configuration

Custom Registry

bun publish --registry https://my-private-registry.com

A package can pin the registry it is published to with publishConfig.registry in its package.json (--registry still overrides it). Like npm, this replaces the default registry only; a registry configured for the package's scope takes precedence unless publishConfig also sets @scope:registry.

{
  "publishConfig": {
    "registry": "https://my-private-registry.com" // [!code ++]
  }
}

SSL Certificates

bun publish --ca "-----BEGIN CERTIFICATE-----..."

bun publish --cafile ./ca-cert.pem

General Options

Dependency Management

Script Control

File Management

Performance

Output Control