chore(build): prebundle deps in rsbuild-plugin-dts (#1227)

Author: Timeless0911

packages/core/rslib.config.ts

@@ -48,6 +48,7 @@ export default defineConfig({
       RSLIB_VERSION: JSON.stringify(require('./package.json').version),
     },
   },
+  // externalize pre-bundled dependencies
   output: {
     externals: {
       picocolors: '../compiled/picocolors/index.js',

packages/plugin-dts/package.json

@@ -22,27 +22,30 @@
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
   "files": [
-    "dist"
+    "dist",
+    "compiled"
   ],
   "scripts": {
     "build": "rslib build",
     "dev": "rslib build --watch",
+    "prebundle": "prebundle",
     "test": "rstest"
   },
   "dependencies": {
-    "@ast-grep/napi": "0.37.0",
-    "magic-string": "^0.30.19",
-    "picocolors": "1.1.1",
-    "tinyglobby": "0.2.14",
-    "tsconfig-paths": "^4.2.0"
+    "@ast-grep/napi": "0.37.0"
   },
   "devDependencies": {
     "@microsoft/api-extractor": "^7.52.13",
     "@rsbuild/core": "~1.5.7",
     "@rslib/tsconfig": "workspace:*",
     "@typescript/native-preview": "7.0.0-dev.20250915.1",
+    "magic-string": "^0.30.19",
+    "picocolors": "1.1.1",
+    "prebundle": "1.4.2",
     "rsbuild-plugin-publint": "^0.3.3",
     "rslib": "npm:@rslib/[email protected]",
+    "tinyglobby": "0.2.14",
+    "tsconfig-paths": "^4.2.0",
     "typescript": "^5.9.2"
   },
   "peerDependencies": {

packages/plugin-dts/prebundle.config.mjs

@@ -0,0 +1,29 @@
+// @ts-check
+import { join } from 'node:path';
+import fs from 'fs-extra';
+
+/**
+ * Tip: please add the prebundled packages to `tsconfig.json#paths`.
+ */
+
+/** @type {import('prebundle').Config} */
+export default {
+  externals: {
+    typescript: 'typescript',
+  },
+  dependencies: [
+    'tinyglobby',
+    'magic-string',
+    'tsconfig-paths',
+    {
+      name: 'picocolors',
+      beforeBundle({ depPath }) {
+        const typesFile = join(depPath, 'types.ts');
+        // Fix type bundle
+        if (fs.existsSync(typesFile)) {
+          fs.renameSync(typesFile, join(depPath, 'types.d.ts'));
+        }
+      },
+    },
+  ],
+};

packages/plugin-dts/rslib.config.ts

@@ -19,5 +19,14 @@ export default defineConfig({
       index: ['./src/**'],
     },
   },
+  // externalize pre-bundled dependencies
+  output: {
+    externals: {
+      'magic-string': '../compiled/magic-string/index.js',
+      picocolors: '../compiled/picocolors/index.js',
+      tinyglobby: '../compiled/tinyglobby/index.js',
+      'tsconfig-paths': 'node-commonjs ../compiled/tsconfig-paths/index.js',
+    },
+  },
   plugins: [pluginPublint()],
 });

packages/plugin-dts/src/utils.ts

@@ -18,14 +18,16 @@ import { logger, type RsbuildConfig } from '@rsbuild/core';
 import MagicString from 'magic-string';
 import color from 'picocolors';
 import { convertPathToPattern, glob } from 'tinyglobby';
-import { createMatchPath, loadConfig, type MatchPath } from 'tsconfig-paths';
+import type { MatchPath } from 'tsconfig-paths';
+import * as tsconfigPaths from 'tsconfig-paths';
 import type {
   CompilerOptions,
   Diagnostic,
   ParsedCommandLine,
 } from 'typescript';
 import type { DtsEntry, DtsRedirect } from './index';
 
+const { createMatchPath, loadConfig } = tsconfigPaths;
 const __filename = fileURLToPath(import.meta.url);
 const require = createRequire(__filename);
 

packages/plugin-dts/tsconfig.json

@@ -7,7 +7,13 @@
     "isolatedDeclarations": true,
     "composite": true,
     "module": "ESNext",
-    "moduleResolution": "Bundler"
+    "moduleResolution": "Bundler",
+    "paths": {
+      "magic-string": ["./compiled/magic-string"],
+      "picocolors": ["./compiled/picocolors"],
+      "tinyglobby": ["./compiled/tinyglobby"],
+      "tsconfig-paths": ["./compiled/tsconfig-paths"]
+    }
   },
   "include": ["src"],
   "exclude": ["**/node_modules"]

pnpm-lock.yaml

@@ -72,6 +72,7 @@ export const expectPoll: (fn: () => boolean) => ReturnType<typeof expect.poll> =
   (fn) => {
     return expect.poll(fn, {
       intervals: [20, 30, 40, 50, 60, 70, 80, 90, 100],
+      timeout: process.env.CI ? 10_000 : 5_000,
     });
   };