Remove too aggressive stat cache

Author: cramforce

package.json

@@ -1,6 +1,6 @@
 {
   "name": "just-bash",
-  "version": "2.4.2",
+  "version": "2.4.3",
   "description": "A simulated bash environment with virtual filesystem",
   "repository": {
     "type": "git",

src/fs/overlay-fs/overlay-fs.ts

@@ -76,9 +76,6 @@ export class OverlayFs implements IFileSystem {
   private readonly readOnly: boolean;
   private readonly memory: Map<string, MemoryEntry> = new Map();
   private readonly deleted: Set<string> = new Set();
-  // Cache stat results from real filesystem (files don't change during operation)
-  private readonly statCache: Map<string, FsStat> = new Map();
-  private readonly lstatCache: Map<string, FsStat> = new Map();
 
   constructor(options: OverlayFsOptions) {
     // Resolve to absolute path
@@ -496,25 +493,16 @@ export class OverlayFs implements IFileSystem {
       throw new Error(`ENOENT: no such file or directory, stat '${path}'`);
     }
 
-    // Check stat cache first (files on disk don't change during operation)
-    const cached = this.statCache.get(realPath);
-    if (cached) {
-      return cached;
-    }
-
     try {
       const stat = await fs.promises.stat(realPath);
-      const result: FsStat = {
+      return {
         isFile: stat.isFile(),
         isDirectory: stat.isDirectory(),
         isSymbolicLink: false,
         mode: stat.mode,
         size: stat.size,
         mtime: stat.mtime,
       };
-      // Cache the result
-      this.statCache.set(realPath, result);
-      return result;
     } catch (e) {
       if ((e as NodeJS.ErrnoException).code === "ENOENT") {
         throw new Error(`ENOENT: no such file or directory, stat '${path}'`);
@@ -565,25 +553,16 @@ export class OverlayFs implements IFileSystem {
       throw new Error(`ENOENT: no such file or directory, lstat '${path}'`);
     }
 
-    // Check lstat cache first
-    const cached = this.lstatCache.get(realPath);
-    if (cached) {
-      return cached;
-    }
-
     try {
       const stat = await fs.promises.lstat(realPath);
-      const result: FsStat = {
+      return {
         isFile: stat.isFile(),
         isDirectory: stat.isDirectory(),
         isSymbolicLink: stat.isSymbolicLink(),
         mode: stat.mode,
         size: stat.size,
         mtime: stat.mtime,
       };
-      // Cache the result
-      this.lstatCache.set(realPath, result);
-      return result;
     } catch (e) {
       if ((e as NodeJS.ErrnoException).code === "ENOENT") {
         throw new Error(`ENOENT: no such file or directory, lstat '${path}'`);