perf: rm buildinfo on demand

packages/plugin-dts/src/dts.ts

@@ -12,7 +12,13 @@ import { logger } from '@rsbuild/core';
 import color from 'picocolors';
 import type { DtsGenOptions } from './index';
 import { emitDts } from './tsc';
-import { calcLongestCommonPath, ensureTempDeclarationDir } from './utils';
+import {
+  calcLongestCommonPath,
+  cleanDtsFiles,
+  cleanTsBuildInfoFile,
+  clearTempDeclarationDir,
+  ensureTempDeclarationDir,
+} from './utils';
 
 const isObject = (obj: unknown): obj is Record<string, any> =>
   Object.prototype.toString.call(obj) === '[object Object]';
@@ -108,10 +114,12 @@ export const calcBundledPackages = (options: {
 export async function generateDts(data: DtsGenOptions): Promise<void> {
   const {
     bundle,
-    dtsEmitPath,
     dtsEntry,
     tsconfigPath,
     tsConfigResult,
+    distPath,
+    rootDistPath,
+    cleanDistPath,
     name,
     cwd,
     build,
@@ -126,6 +134,24 @@ 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

@@ -3,13 +3,7 @@ import { dirname, extname, join } from 'node:path';
 import { fileURLToPath } from 'node:url';
 import { type RsbuildConfig, type RsbuildPlugin, logger } from '@rsbuild/core';
 import ts from 'typescript';
-import {
-  cleanDtsFiles,
-  cleanTsBuildInfoFile,
-  clearTempDeclarationDir,
-  loadTsconfig,
-  processSourceEntry,
-} from './utils';
+import { loadTsconfig, processSourceEntry } from './utils';
 
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = dirname(__filename);
@@ -41,10 +35,11 @@ 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'];
 };
 
@@ -98,10 +93,6 @@ export const pluginDts = (options: PluginDtsOptions = {}): RsbuildPlugin => ({
         }
 
         const tsConfigResult = loadTsconfig(tsconfigPath);
-        const dtsEmitPath =
-          options.distPath ??
-          tsConfigResult.options.declarationDir ??
-          config.output?.distPath?.root;
 
         const jsExtension = extname(__filename);
         const childProcess = fork(join(__dirname, `./dts${jsExtension}`), [], {
@@ -110,28 +101,14 @@ export const pluginDts = (options: PluginDtsOptions = {}): RsbuildPlugin => ({
 
         childProcesses.push(childProcess);
 
-        const { cleanDistPath } = config.output;
-
-        // clean dts files
-        if (cleanDistPath !== false) {
-          await cleanDtsFiles(dtsEmitPath);
-        }
-
-        // clean .rslib temp folder
-        if (options.bundle) {
-          await clearTempDeclarationDir(cwd);
-        }
-
-        // clean tsbuildinfo file
-        await cleanTsBuildInfoFile(tsconfigPath, tsConfigResult);
-
         const dtsGenOptions: DtsGenOptions = {
           ...options,
           dtsEntry,
-          dtsEmitPath,
+          rootDistPath: config.output?.distPath?.root,
           userExternals: config.output.externals,
           tsconfigPath,
           tsConfigResult,
+          cleanDistPath: config.output.cleanDistPath,
           name: environment.name,
           cwd,
           isWatch,

packages/plugin-dts/src/utils.ts

@@ -243,10 +243,10 @@ export async function cleanDtsFiles(dir: string): Promise<void> {
 
 export async function cleanTsBuildInfoFile(
   tsconfigPath: string,
-  tsConfigResult: ts.ParsedCommandLine,
+  compilerOptions: ts.CompilerOptions,
 ): Promise<void> {
   const tsconfigDir = dirname(tsconfigPath);
-  const { outDir, rootDir, tsBuildInfoFile } = tsConfigResult.options;
+  const { outDir, rootDir, tsBuildInfoFile } = compilerOptions;
   let tsbuildInfoFilePath = `${basename(
     tsconfigPath,
     '.json',
@@ -263,5 +263,7 @@ export async function cleanTsBuildInfoFile(
     }
   }
 
-  await fsP.rm(tsbuildInfoFilePath, { force: true });
+  if (await pathExists(tsbuildInfoFilePath)) {
+    await fsP.rm(tsbuildInfoFilePath, { force: true });
+  }
 }