Configuration merge

[zhaogongchengsi]

If I need multiple configurations to merge when I use @ rspack/core to call through api, can I provide a mergeConfig api function to merge configuration files?

const newConfig = mergeConfig(config1, config2, ....)

[hardfist]

actually webpack supports extends which is for this https://webpack.js.org/configuration/extending-configurations/#extends , we can support this in future

[hardfist]

or you can use webpack-merge directly

[zhaogongchengsi]

I'm afraid it's not perfectly compatible.

[hardfist]

why is it not compatible?

[dgoldstein0]

also wondering what's wrong with webpack-merge. https://rspack.rs/config/#merge-configurations even recommends it so if it's not compatible in some ways the docs should be clarified

[chenjiahan]

@dgoldstein0
webpack-merge is compatible with Rspack config, if you encounter any problems, you can share them with us

[dgoldstein0]

related: #11408