[Bug]: rsbuild preview fails when you use a custom dist path

[binarykitchen]

Version

System:
    OS: Linux 6.19 EndeavourOS
    CPU: (8) x64 Intel(R) Core(TM) i7-10510U CPU @ 1.80GHz
    Memory: 6.78 GB / 15.46 GB
    Container: Yes
    Shell: 5.9 - /bin/zsh
  Browsers:
    Chromium: 146.0.7680.177
    Firefox: 149.0.2
    Firefox Developer Edition: 149.0.2
  npmPackages:
    @rsbuild/core: 1.7.5 => 1.7.5 
    @rsbuild/plugin-node-polyfill: 1.4.4 => 1.4.4 
    @rsbuild/plugin-pug: 1.3.2 => 1.3.2 
    @rsbuild/plugin-react: 1.4.6 => 1.4.6 
    @rsbuild/plugin-stylus: 1.3.1 => 1.3.1 
    @rsbuild/plugin-svgr: 1.3.1 => 1.3.1

Details

In my rsbuild config I set the distPath config to a different path, ./var. This is breaking the preview command. It cannot find the build because it always defaults to dist.

> videomail.io@3.1.0 preview
> rsbuild preview

Rsbuild v1.7.5

error   Failed to start preview server.
error   [rsbuild:preview] The output directory /home/michael-heuberger/code/binarykitchen/videomail.io/dist does not exist, please build the project before previewing.

Would be good to have it configurable, or make rsbuild preview even smarter, honouring your existing rsbuild config?

Reproduce link

N/A

Reproduce Steps

N/A

[GRAMMAC1]

try var instead of /var - Rsbuild seems to treat /var as an absolute path.

[binarykitchen]

@GRAMMAC1 That was just an example. My var is based off the project path, not absolute. I've removed the / in the above comment.

All I am saying is, that the preview command does not honour a custom output directory other than dist

[GRAMMAC1]

export default defineConfig({
  plugins: [pluginReact()],
  output: {
    distPath: 'test-dist'
  }
});

I test the config above on Rsbuild 1.7.5, and preview command still works. Could you share a repro repo?

Here is my repo link https://github.com/GRAMMAC1/rsbuild-issue-7481

[binarykitchen]

你好

Appreciate you trying to help. My configuration is complex where the distPath varies by environment, with different backend/server configurations across multiple stages. The website/app itself is www.videomail.io, which includes video encoding for Deaf people.

It's tricky to reproduce this in a simple repository.

If you would like to investigate this further, I can grant you temporary access to the repository.
Please email me at michael.heuberger@binarykitchen.com and we can go from there ...