Improve the performance of filename completion over large repositories. (#938)

packages/core/src/services/fileDiscoveryService.ts

@@ -7,6 +7,7 @@
 import { GitIgnoreParser, GitIgnoreFilter } from '../utils/gitIgnoreParser.js';
 import { isGitRepository } from '../utils/gitUtils.js';
 import * as path from 'path';
+import fg from 'fast-glob';
 
 export interface FileDiscoveryOptions {
   respectGitIgnore?: boolean;
@@ -32,6 +33,17 @@ export class FileDiscoveryService {
     }
   }
 
+  async glob(
+    pattern: string | string[],
+    options: fg.Options = {},
+  ): Promise<string[]> {
+    const files = await fg(pattern, {
+      ...options,
+      caseSensitiveMatch: false,
+    });
+    return this.filterFiles(files);
+  }
+
   /**
    * Filters a list of file paths based on git ignore rules
    */

packages/core/src/utils/gitIgnoreParser.ts

@@ -6,7 +6,7 @@
 
 import * as fs from 'fs/promises';
 import * as path from 'path';
-import ignore, { Ignore } from 'ignore';
+import ignore, { type Ignore } from 'ignore';
 import { isGitRepository } from './gitUtils.js';
 
 export interface GitIgnoreFilter {