[Bug]: Rslib build breaks shebang line in bin file

[chenjiahan]

Version

System:
    OS: macOS 14.6.1
    CPU: (10) arm64 Apple M1 Pro
    Memory: 2.72 GB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Browsers:
    Chrome: 128.0.6613.86
    Safari: 17.6
  npmPackages:
    @rslib/core: 0.0.4 => 0.0.4

Details

Rslib build breaks shebang line in bin file:

• Input:

• Output:

• Failed to run:

Reproduce link

https://github.com/web-infra-dev/rsbuild/tree/8a2a850aad336b726e50b2b1bb203d8c72c1c48a/packages/create-rsbuild

Reproduce Steps

1. pnpm i
2. pnpm build

[fi3ework]

• webpack / Rspack will adding // to strip the shebang, see https://github.com/webpack/webpack/pull/13961.
• webpack / Rspack will not hoist shebang to the top of the bundle intentionally.
• esbuild already handles chmod internally https://github.com/evanw/esbuild/commit/b808c0d905551dde55e2485eb18d488b12e4ba94.

Shortly we could use https://github.com/shuangwhywhy/webpack-shebang-plugin. In longterm, we could considering making this a built-in plugin to webpack / Rspack.

[chenjiahan]

Yes, we can add a built-in plugin to webpack and Rspack when the target is node.