#source.exclude

• Type: Rspack.RuleSetCondition
• Default: []

Exclude JavaScript or TypeScript files that do not need to be compiled by SWC.

#Usage

The usage of source.exclude is similar to source.include, supporting passing in strings or regular expressions to match the module path.

For example:

import path from 'node:path';

export default {
  source: {
    exclude: [path.resolve(__dirname, 'src/module-a'), /src\/module-b/],
  },
};

See source.include to learn more usages.

#Priority

When both source.include and source.exclude are set, source.exclude has higher priority.

For example, in the following example, although source.include matches the entire src directory, JavaScript files in the src/foo directory will not be compiled by SWC:

import path from 'node:path';

export default {
  source: {
    include: [path.resolve(__dirname, 'src')],
    exclude: [path.resolve(__dirname, 'src/foo')],
  },
};

#Exclude from bundling

source.exclude specifies JavaScript/TypeScript files that do not need to be compiled. These files will not be transformed by SWC, but referenced files will still be bundled into the outputs.

If you want certain files to be excluded and not bundled into the outputs, you can use Rspack's IgnorePlugin.

export default {
  tools: {
    rspack: (config, { rspack }) => {
      config.plugins.push(
        new rspack.IgnorePlugin({
          resourceRegExp: /^\.\/locale$/,
          contextRegExp: /moment$/,
        }),
      );
      return config;
    },
  },
};