How to ignore specific build warnings in Rsbuild

[curlykay]

After updating @rsbuild/core from 1.6.13 to 1.6.14, a build warning regarding mock “__dirname” is printed during the build.
I'm unsure whether this is a fix or a regression.
Since the build warning does not impact production usage, I configured rsbuild.config.ts based on https://rspack.rs/zh/config/other-options#ignorewarnings to ignore this warning.
However, after configuration, running pnpm run dev still produces the build warning shown in the image.

I have temporarily locked @rsbuild/core to version 1.6.13 to avoid this build warning.

Therefore, there are now two issues:

1. Is the build warning for mock “__dirname” during build expected behavior for rsbuild?
2. How should rsbuild.config.ts be correctly configured to specify ignoring this build warning?

rsbuild.config.ts

import { defineConfig } from "@rsbuild/core";
import { pluginVue2 } from "@rsbuild/plugin-vue2";

// Docs: https://rsbuild.rs/config/
export default defineConfig({
  plugins: [pluginVue2()],
  tools: {
    rspack: {
      ignoreWarnings: [/parser_helper_x\.js/],
      // ignoreWarnings: [(warning) => false],
    },
  },
});

repo: https://github.com/curlykay/issue-rabuild-ignore-warnings

System:
OS: macOS 15.7.2
CPU: (14) arm64 Apple M4 Pro
Memory: 748.77 MB / 48.00 GB
Shell: 5.9 - /bin/zsh
Browsers:
Chrome: 143.0.7499.41
Edge: 143.0.3650.75
Firefox: 145.0.2
Safari: 26.1
npmPackages:
@rsbuild/core: 1.6.14 => 1.6.14
@rsbuild/plugin-vue2: ^1.0.4 => 1.0.4

[chenjiahan]

1. This is as expected; webpack behaves the same way.
2. Add Rspack's node.__dirname option to disable the warning:

export default defineConfig({
  tools: {
    rspack: {
      node: {
        __dirname: true,
      },
    },
  },
});

Ref: https://rspack.rs/config/node#node__dirname

[curlykay]

That did the trick, thanks! 🙌