Update Astra: v2.80.19 - Refactoring Sidebar, LM Studio integration, and new tests

src/utils.ts

@@ -102,7 +102,34 @@ export function _isBrainDirExplicitlySet(): boolean {
     return getBrainProfiles().length > 0;
 }
 
+interface BrainFilesCacheEntry {
+    files: string[];
+    expiresAt: number;
+}
+const _brainFilesCache = new Map<string, BrainFilesCacheEntry>();
+const BRAIN_FILES_CACHE_TTL_MS = 5000;
+
 export function findBrainFiles(dir: string): string[] {
+    const now = Date.now();
+    const cached = _brainFilesCache.get(dir);
+    if (cached && cached.expiresAt > now) {
+        return cached.files.slice();
+    }
+    const files = _walkBrainFiles(dir);
+    _brainFilesCache.set(dir, { files, expiresAt: now + BRAIN_FILES_CACHE_TTL_MS });
+    return files.slice();
+}
+
+/** Force-invalidate the brain files cache (e.g. after sync or new file write). */
+export function invalidateBrainFilesCache(dir?: string): void {
+    if (dir === undefined) {
+        _brainFilesCache.clear();
+        return;
+    }
+    _brainFilesCache.delete(dir);
+}
+
+function _walkBrainFiles(dir: string): string[] {
     let results: string[] = [];
     if (!fs.existsSync(dir)) return results;
     const list = fs.readdirSync(dir);
@@ -111,7 +138,7 @@ export function findBrainFiles(dir: string): string[] {
         const stat = fs.statSync(filePath);
         if (stat && stat.isDirectory()) {
             if (!EXCLUDED_DIRS.has(file)) {
-                results = results.concat(findBrainFiles(filePath));
+                results = results.concat(_walkBrainFiles(filePath));
             }
         } else if (file.endsWith('.md')) {
             results.push(filePath);