[Bug]: source code content was incorrectly replaced by file hash name.

[bigbossx]

System Info

rsbuild version: 1.0.19

// use in project
export const lazyLoadDateHolidays = () => {
  return import(
    /* webpackChunkName: "date-holidays"*/
    /* webpackPrefetch: true */
    'date-holidays'
  );
};

break down in production build

Details

• is it stable reproduce ? No, i can't provider a mini reproduce

• webpack has some problem？No, only happen with rsbuild

maybe rspack need a better way to replace hash content in chunk, not global replace

please cc @chenjiahan btw, thanks for your quick answer in wechat. help me a lot

Reproduce link

No response

Reproduce Steps

source code was break down in

[bigbossx]

workaround:

// rsbuild.config.ts

export default defineConfig({
   output:{
     filenameHash: 'contenthash:16' // long hash name to reduce the probability of conflict
   }
})

[chenjiahan]

Yes, we have discussed this issue. Using a content hash of 10 characters or more should avoid this problem, but it will also increase the bundle size slightly.

If Rspack can implement a more secure hash replacement, that will be the best approach.

[inottn]

It might be similar to https://github.com/webpack/webpack/issues/14058.

[chenjiahan]

Duplicate with: https://github.com/web-infra-dev/rspack/issues/5339

[bigbossx]

just a suggestion:

1. maybe we can change the default config in rsbuild to

   const getHash = () => {
   if (typeof filenameHash === 'string') {
     return filenameHash ? `.[${filenameHash}]` : '';
   }
   return filenameHash ? '.[contenthash:12]' : '';
   };

2. and note this warning or tips in rspack docs

in next release

because it seems like it will take some time to really fix it(webpack too), but before that, we can reduce the probability of bugs happening(we was report by user in production env🥹)