Bun v0.5.1

Bun v0.5.1 adds support for aliasing package.json dependencies, a better error message when a workspace is not found, and a few important bug fixes. This release is a follow up to Bun v0.5.

# Install Bun
curl https://bun.sh/install | bash

# Upgrade to latest release of Bun
bun upgrade

Alias dependencies in package.json

bun install now supports aliasing dependencies via the npm: prefix (thanks to @alexlamsl)

This lets you install multiple versions of the same dependency and have it placed under a different folder in node_modules.

package.json:

{
  "name": "all-the-lodashes",
  "dependencies": {
    "lodash": "^4.17.21",
    "lodash3": "npm:lodash@3"
  }
}

index.ts:

const lodash3 = require("lodash3");
const lodash4 = require("lodash");

console.log(lodash3.VERSION);
console.log(lodash4.VERSION);

Output:

❯ bun index.ts

3.10.1
4.17.21

This feature is also supported by npm, yarn and others. Previously, when a package.json used this feature bun install showed an error message because it wasn't implemented yet.

Better error message when workspace is not found

Before:

bun install v0.5.0 (2db04ef9)

error: FileNotFound
bun could not find a file, and the code that produces this error is missing a better error.

----- bun meta -----
Bun v0.5.0 (2db04ef9) macOS Silicon 22.2.0
InstallCommand: bunfig
Elapsed: 4ms | User: 5ms | Sys: 9ms
RSS: 14.07MB | Peak: 14.07MB | Commit: 69.22MB | Faults: 12
----- bun meta -----

After:

bun install v0.5.1 (f993975a)

error: Workspace not found "i-dont-exist" in "/private/tmp/bun-bad-workspace"

    "workspaces": ["i-dont-exist"]
                   ^
/private/tmp/bun-bad-workspace/package.json:3:18

For a package.json like this:

{
  "name": "my-workspace",
  "workspaces": ["i-dont-exist"]
}

Bug fixes

This release fixes a few important bugs

• A regression introduced in v0.5.0 where reading the "encoding" string caused crashes
• fetch was not wired up correctly to read the HTTPS_PROXY / HTTP_PROXY environment variables (fixed by @cirospaciari)
• Assigning require to a variable caused undefined is not an object errors if used more than once #1831
• A crash that sometimes occurred while processing long lists of workspace names
• rmdir was missing from node:fs (fixed by @alexlamsl)
• Error messages from BoringSSL were not being read correctly
• Fixes a transpiler issue with TypeScript parameter fields in the constructor function. This regression was introduced when TypeScript decorators were implemented #1855 (fixed by @dylan-conway)

PRs