fix: clean dts distPath earlier

packages/plugin-dts/src/dts.ts

@@ -12,13 +12,7 @@ import { logger } from '@rsbuild/core';
 import color from 'picocolors';
 import type { DtsGenOptions } from './index';
 import { emitDts } from './tsc';
-import {
-  calcLongestCommonPath,
-  cleanDtsFiles,
-  cleanTsBuildInfoFile,
-  clearTempDeclarationDir,
-  ensureTempDeclarationDir,
-} from './utils';
+import { calcLongestCommonPath, ensureTempDeclarationDir } from './utils';
 
 const isObject = (obj: unknown): obj is Record<string, any> =>
   Object.prototype.toString.call(obj) === '[object Object]';
@@ -115,11 +109,9 @@ export async function generateDts(data: DtsGenOptions): Promise<void> {
   const {
     bundle,
     dtsEntry,
+    dtsEmitPath,
     tsconfigPath,
     tsConfigResult,
-    distPath,
-    rootDistPath,
-    cleanDistPath,
     name,
     cwd,
     build,
@@ -138,24 +130,6 @@ export async function generateDts(data: DtsGenOptions): Promise<void> {
 
   const { options: rawCompilerOptions, fileNames } = tsConfigResult;
 
-  const dtsEmitPath =
-    distPath ?? rawCompilerOptions.declarationDir ?? rootDistPath;
-
-  // clean dts files
-  if (cleanDistPath !== false) {
-    await cleanDtsFiles(dtsEmitPath);
-  }
-
-  // clean .rslib temp folder
-  if (bundle) {
-    await clearTempDeclarationDir(cwd);
-  }
-
-  // clean tsbuildinfo file
-  if (rawCompilerOptions.composite || rawCompilerOptions.incremental || build) {
-    await cleanTsBuildInfoFile(tsconfigPath, rawCompilerOptions);
-  }
-
   // The longest common path of all non-declaration input files.
   // If composite is set, the default is instead the directory containing the tsconfig.json file.
   // see https://www.typescriptlang.org/tsconfig/#rootDir

packages/plugin-dts/src/index.ts

@@ -4,7 +4,13 @@ import { fileURLToPath } from 'node:url';
 import { type RsbuildConfig, type RsbuildPlugin, logger } from '@rsbuild/core';
 import color from 'picocolors';
 import ts from 'typescript';
-import { loadTsconfig, processSourceEntry } from './utils';
+import {
+  cleanDtsFiles,
+  cleanTsBuildInfoFile,
+  clearTempDeclarationDir,
+  loadTsconfig,
+  processSourceEntry,
+} from './utils';
 
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = dirname(__filename);
@@ -42,11 +48,10 @@ export type DtsGenOptions = PluginDtsOptions & {
   cwd: string;
   isWatch: boolean;
   dtsEntry: DtsEntry;
+  dtsEmitPath: string;
   build?: boolean;
   tsconfigPath: string;
   tsConfigResult: ts.ParsedCommandLine;
-  rootDistPath: string;
-  cleanDistPath: NonNullable<RsbuildConfig['output']>['cleanDistPath'];
   userExternals?: NonNullable<RsbuildConfig['output']>['externals'];
 };
 
@@ -104,6 +109,30 @@ export const pluginDts = (options: PluginDtsOptions = {}): RsbuildPlugin => ({
         }
 
         const tsConfigResult = loadTsconfig(tsconfigPath);
+        const { options: rawCompilerOptions } = tsConfigResult;
+        const dtsEmitPath =
+          options.distPath ??
+          rawCompilerOptions.declarationDir ??
+          config.output?.distPath?.root;
+
+        // clean dts files
+        if (config.output.cleanDistPath !== false) {
+          await cleanDtsFiles(dtsEmitPath);
+        }
+
+        // clean .rslib temp folder
+        if (options.bundle) {
+          await clearTempDeclarationDir(cwd);
+        }
+
+        // clean tsbuildinfo file
+        if (
+          rawCompilerOptions.composite ||
+          rawCompilerOptions.incremental ||
+          options.build
+        ) {
+          await cleanTsBuildInfoFile(tsconfigPath, rawCompilerOptions);
+        }
 
         const jsExtension = extname(__filename);
         const childProcess = fork(join(__dirname, `./dts${jsExtension}`), [], {
@@ -115,11 +144,10 @@ export const pluginDts = (options: PluginDtsOptions = {}): RsbuildPlugin => ({
         const dtsGenOptions: DtsGenOptions = {
           ...options,
           dtsEntry,
-          rootDistPath: config.output?.distPath?.root,
+          dtsEmitPath,
           userExternals: config.output.externals,
           tsconfigPath,
           tsConfigResult,
-          cleanDistPath: config.output.cleanDistPath,
           name: environment.name,
           cwd,
           isWatch,

tests/integration/dts/copy/copy.d.ts

@@ -0,0 +1,5 @@
+export type Copy = {
+  from: string;
+  to: string;
+  context: string;
+};

tests/integration/dts/copy/package.json

@@ -0,0 +1,6 @@
+{
+  "name": "dts-copy-test",
+  "version": "1.0.0",
+  "private": true,
+  "type": "module"
+}

tests/integration/dts/copy/rslib.config.ts

@@ -0,0 +1,21 @@
+import { defineConfig } from '@rslib/core';
+import { generateBundleEsmConfig } from 'test-helper';
+
+export default defineConfig({
+  lib: [
+    generateBundleEsmConfig({
+      dts: true,
+    }),
+  ],
+  output: {
+    copy: {
+      patterns: [
+        {
+          from: './copy.d.ts',
+          to: './copy.d.ts',
+          context: __dirname,
+        },
+      ],
+    },
+  },
+});

tests/integration/dts/copy/src/index.ts

@@ -0,0 +1,2 @@
+export const a = 'hello world';
+export type A = string;

tests/integration/dts/copy/tsconfig.json

@@ -0,0 +1,9 @@
+{
+  "extends": "@rslib/tsconfig/base",
+  "compilerOptions": {
+    "baseUrl": "./",
+    "rootDir": "src",
+    "composite": true
+  },
+  "include": ["src"]
+}

tests/integration/dts/index.test.ts

@@ -590,3 +590,20 @@ describe('dts when composite: true', () => {
     expect(existsSync(buildInfoPath)).toBeTruthy();
   });
 });
+
+describe('use with other features', async () => {
+  test('use output.copy to copy dts files', async () => {
+    const fixturePath = join(__dirname, 'copy');
+    const { files } = await buildAndGetResults({
+      fixturePath,
+      type: 'dts',
+    });
+
+    expect(files.esm).toMatchInlineSnapshot(`
+      [
+        "<ROOT>/tests/integration/dts/copy/dist/esm/copy.d.ts",
+        "<ROOT>/tests/integration/dts/copy/dist/esm/index.d.ts",
+      ]
+    `);
+  });
+});