feat: support asset module

examples/preact-component-bundle-false/rslib.config.ts

@@ -3,11 +3,6 @@ import { pluginSass } from '@rsbuild/plugin-sass';
 import { defineConfig } from '@rslib/core';
 
 export default defineConfig({
-  source: {
-    entry: {
-      index: ['./src/**'],
-    },
-  },
   lib: [
     {
       bundle: false,

examples/preact-component-bundle-false/src/components/CounterButton/index.tsx

@@ -1,4 +1,5 @@
 import type { FunctionComponent } from 'preact';
+import logo from '../../assets/logo.svg';
 import styles from './index.module.scss';
 
 interface CounterButtonProps {
@@ -10,7 +11,12 @@ export const CounterButton: FunctionComponent<CounterButtonProps> = ({
   onClick,
   label,
 }) => (
-  <button type="button" className={styles.button} onClick={onClick}>
+  <button
+    type="button"
+    className={`${styles.button} counter-button`}
+    onClick={onClick}
+  >
+    <img src={logo} alt="react" />
     {label}
   </button>
 );

examples/preact-component-bundle-false/src/env.d.ts

@@ -2,3 +2,8 @@ declare module '*.module.scss' {
   const classes: { [key: string]: string };
   export default classes;
 }
+
+declare module '*.svg' {
+  const url: string;
+  export default url;
+}

examples/preact-component-bundle-false/src/index.scss

@@ -1,3 +1,10 @@
+.counter-title {
+  width: 100px;
+  height: 100px;
+  background: no-repeat url('./assets/logo.svg');
+  background-size: cover;
+}
+
 .counter-text {
   font-size: 50px;
 }

examples/react-component-bundle-false/rslib.config.ts

@@ -3,11 +3,6 @@ import { pluginSass } from '@rsbuild/plugin-sass';
 import { defineConfig } from '@rslib/core';
 
 export default defineConfig({
-  source: {
-    entry: {
-      index: ['./src/**'],
-    },
-  },
   lib: [
     {
       format: 'esm',
@@ -32,7 +27,6 @@ export default defineConfig({
   ],
   output: {
     target: 'web',
-    assetPrefix: 'auto', // TODO: move this line to packages/core/src/asset/assetConfig.ts,
   },
   plugins: [pluginReact(), pluginSass()],
 });

examples/react-component-bundle-false/src/components/CounterButton/index.tsx

@@ -1,4 +1,5 @@
 import type React from 'react';
+import logo from '../../assets/logo.svg';
 import styles from './index.module.scss';
 
 interface CounterButtonProps {
@@ -10,7 +11,12 @@ export const CounterButton: React.FC<CounterButtonProps> = ({
   onClick,
   label,
 }) => (
-  <button type="button" className={styles.button} onClick={onClick}>
+  <button
+    type="button"
+    className={`${styles.button} counter-button`}
+    onClick={onClick}
+  >
+    <img src={logo} alt="react" />
     {label}
   </button>
 );

examples/react-component-bundle-false/src/env.d.ts

@@ -2,3 +2,8 @@ declare module '*.module.scss' {
   const classes: { [key: string]: string };
   export default classes;
 }
+
+declare module '*.svg' {
+  const url: string;
+  export default url;
+}

examples/react-component-bundle/rslib.config.ts

@@ -25,7 +25,6 @@ export default defineConfig({
   ],
   output: {
     target: 'web',
-    assetPrefix: 'auto', // TODO: move this line to packages/core/src/asset/assetConfig.ts
   },
   plugins: [pluginReact(), pluginSass()],
 });

examples/react-component-bundle/src/components/CounterButton/index.tsx

@@ -1,4 +1,5 @@
 import type React from 'react';
+import logo from '../../assets/logo.svg';
 import styles from './index.module.scss';
 
 interface CounterButtonProps {
@@ -10,7 +11,12 @@ export const CounterButton: React.FC<CounterButtonProps> = ({
   onClick,
   label,
 }) => (
-  <button type="button" className={styles.button} onClick={onClick}>
+  <button
+    type="button"
+    className={`${styles.button} counter-button`}
+    onClick={onClick}
+  >
+    <img src={logo} alt="react" />
     {label}
   </button>
 );

examples/react-component-bundle/src/env.d.ts

@@ -2,3 +2,8 @@ declare module '*.module.scss' {
   const classes: { [key: string]: string };
   export default classes;
 }
+
+declare module '*.svg' {
+  const url: string;
+  export default url;
+}

packages/core/src/asset/LibSvgrPatchPlugin.ts

@@ -0,0 +1,68 @@
+import { type Rspack, rspack } from '@rsbuild/core';
+import { getUndoPath } from '../css/utils';
+
+const pluginName = 'LIB_SVGR_PATCH_PLUGIN';
+
+export const PUBLIC_PATH_PLACEHOLDER = '__RSLIB_SVGR_AUTO_PUBLIC_PATH__';
+
+export class LibSvgrPatchPlugin implements Rspack.RspackPluginInstance {
+  readonly name: string = pluginName;
+  apply(compiler: Rspack.Compiler): void {
+    compiler.hooks.make.tap(this.name, (compilation) => {
+      compilation.hooks.processAssets.tap(this.name, (assets) => {
+        const isEsm = Boolean(compilation.options.output.module);
+        const chunkAsset = Object.keys(assets).filter((name) =>
+          /js$/.test(name),
+        );
+        for (const name of chunkAsset) {
+          compilation.updateAsset(name, (old) => {
+            const oldSource = old.source().toString();
+            const newSource = new rspack.sources.ReplaceSource(old);
+
+            const pattern = new RegExp(
+              `\\(?['"]${PUBLIC_PATH_PLACEHOLDER}(.*)['"]\\)?`,
+              'g',
+            );
+
+            const matches = [...oldSource.matchAll(pattern)];
+            const len = matches.length;
+            if (len === 0) {
+              return old;
+            }
+
+            const undoPath = getUndoPath(
+              name,
+              compilation.outputOptions.path!,
+              true,
+            );
+            for (let i = 0; i < len; i++) {
+              const match = matches[i]!;
+              const filename = match[1];
+              const requirePath = `${undoPath}${filename}`;
+              let replaced = '';
+              if (isEsm) {
+                replaced = `__rslib_svgr_url__${i}__`;
+              } else {
+                replaced = `require("${requirePath}")`;
+              }
+              newSource.replace(
+                match.index,
+                match.index + match[0].length - 1,
+                replaced,
+              );
+
+              if (isEsm) {
+                newSource.insert(
+                  0,
+                  `import __rslib_svgr_url__${i}__ from "${requirePath}";\n`,
+                );
+              }
+            }
+
+            return newSource;
+          });
+        }
+      });
+    });
+  }
+}

packages/core/src/asset/assetConfig.ts

@@ -1,5 +1,146 @@
-import type { EnvironmentConfig } from '@rsbuild/core';
+import type { EnvironmentConfig, RsbuildPlugin } from '@rsbuild/core';
+import { CSS_EXTENSIONS_PATTERN } from '../constant';
 import type { Format } from '../types';
+import {
+  LibSvgrPatchPlugin,
+  PUBLIC_PATH_PLACEHOLDER,
+} from './LibSvgrPatchPlugin';
+
+const PLUGIN_NAME = 'rsbuild:lib-asset';
+
+const RSBUILD_SVGR_PLUGIN_NAME = 'rsbuild:svgr';
+
+/**
+ * Be compatible to css-extract importModule and experimentalLibPreserveExports
+ * when set experimentalLibPreserveExports to true, the css-loader result can not executed in node side, so clone the assets rule
+ * 1. js assets: original rule set issuer and experimentalLibPreserveExports: true
+ * 2. css assets: a copy of original rule
+ */
+const pluginLibAsset = ({ bundle }: { bundle: boolean }): RsbuildPlugin => ({
+  name: PLUGIN_NAME,
+  pre: [RSBUILD_SVGR_PLUGIN_NAME],
+  setup(api) {
+    api.modifyBundlerChain((config, { CHAIN_ID }) => {
+      // 1. modify svg rule first, svg is special because of svgr
+      const svgAssetRule = config.module.rules
+        .get(CHAIN_ID.RULE.SVG)
+        .oneOfs.get(CHAIN_ID.ONE_OF.SVG_ASSET);
+      const originalTypeOptions = svgAssetRule.get('type');
+      const originalParserOptions = svgAssetRule.get('parser');
+      const originalGeneratorOptions = svgAssetRule.get('generator');
+
+      const isUserSetPublicPath = config.output.get('publicPath') !== 'auto';
+
+      // if user sets publicPath, do not preserve asset import
+      const generatorOptions = isUserSetPublicPath
+        ? originalGeneratorOptions
+        : {
+            ...originalGeneratorOptions,
+            importMode: 'preserve',
+          };
+
+      const rule = config.module.rule(CHAIN_ID.RULE.SVG);
+
+      rule.oneOf(CHAIN_ID.ONE_OF.SVG_ASSET).generator(generatorOptions).issuer({
+        not: CSS_EXTENSIONS_PATTERN,
+      });
+
+      rule
+        .oneOf(`${CHAIN_ID.ONE_OF.SVG_ASSET}-for-css`)
+        .type(originalTypeOptions)
+        .parser(originalParserOptions)
+        .generator(originalGeneratorOptions)
+        .issuer(CSS_EXTENSIONS_PATTERN);
+
+      // 2. modify other assets rules
+      const ruleIds = [
+        CHAIN_ID.RULE.FONT,
+        CHAIN_ID.RULE.MEDIA,
+        CHAIN_ID.RULE.IMAGE,
+        CHAIN_ID.RULE.ADDITIONAL_ASSETS,
+      ];
+      for (const ruleId of ruleIds) {
+        const oneOfId = `${ruleId}-asset`;
+        const assetRule = config.module.rules.get(ruleId);
+        if (!assetRule) {
+          continue;
+        }
+        const assetRuleOneOf = assetRule.oneOfs.get(oneOfId);
+
+        const originalTypeOptions = assetRuleOneOf.get('type');
+        const originalParserOptions = assetRuleOneOf.get('parser');
+        const originalGeneratorOptions = assetRuleOneOf.get('generator');
+
+        const generatorOptions = isUserSetPublicPath
+          ? originalGeneratorOptions
+          : {
+              ...originalGeneratorOptions,
+              importMode: 'preserve',
+            };
+
+        const rule = config.module.rule(ruleId);
+        rule.oneOf(oneOfId).generator(generatorOptions).issuer({
+          not: CSS_EXTENSIONS_PATTERN,
+        });
+
+        rule
+          .oneOf(`${oneOfId}-for-css`)
+          .type(originalTypeOptions)
+          .parser(originalParserOptions)
+          .generator(originalGeneratorOptions)
+          .issuer(CSS_EXTENSIONS_PATTERN);
+      }
+
+      // for svgr
+      // 1. remove __webpack_require__.p in svgr url-loader and file-loader
+      const isUsingSvgr = Boolean(
+        config.module
+          .rule(CHAIN_ID.RULE.SVG)
+          .oneOf(CHAIN_ID.RULE.SVG)
+          .uses.has(CHAIN_ID.USE.SVGR),
+      );
+      if (isUsingSvgr) {
+        const urlLoaderRule = config.module
+          .rule(CHAIN_ID.RULE.SVG)
+          .oneOf(CHAIN_ID.ONE_OF.SVG)
+          .use(CHAIN_ID.USE.URL);
+
+        const originalOptions = urlLoaderRule.get('options');
+
+        urlLoaderRule.options({
+          ...originalOptions,
+          publicPath: (url: string) => `${PUBLIC_PATH_PLACEHOLDER}${url}`,
+        });
+        config.plugin(LibSvgrPatchPlugin.name).use(LibSvgrPatchPlugin, []);
+      }
+      // 2. in bundleless, only support transform the svg asset to mixedImport svgr file
+      // remove issuer to make every svg asset is transformed
+      if (!bundle) {
+        if (isUsingSvgr) {
+          const rule = config.module
+            .rule(CHAIN_ID.RULE.SVG)
+            .oneOf(CHAIN_ID.ONE_OF.SVG);
+          rule.issuer([]);
+        }
+      }
+
+      // css-asset
+      // preserve './' in css url
+      // in bundleless, we set this in libCssExtractLoader
+      // in bundle, we set this by https://github.com/web-infra-dev/rspack/pull/8946
+      if (bundle) {
+        config.plugins.get(CHAIN_ID.PLUGIN.MINI_CSS_EXTRACT)?.tap((options) => {
+          return [
+            {
+              ...options[0],
+              enforceRelative: true,
+            },
+          ];
+        });
+      }
+    });
+  },
+});
 
 // TODO: asset config document
 export const composeAssetConfig = (
@@ -11,16 +152,17 @@ export const composeAssetConfig = (
       return {
         output: {
           dataUriLimit: 0, // default: no inline asset
-          // assetPrefix: 'auto', // TODO: will turn on this with js support together in the future
+          assetPrefix: 'auto',
         },
+        plugins: [pluginLibAsset({ bundle: true })],
       };
     }
-
     return {
       output: {
         dataUriLimit: 0, // default: no inline asset
-        // assetPrefix: 'auto', // TODO: will turn on this with js support together in the future
+        assetPrefix: 'auto',
       },
+      plugins: [pluginLibAsset({ bundle: false })],
     };
   }