vfs: only initialize SEA VFS when assets exist

Author: mcollina

lib/internal/main/embedding.js

@@ -195,6 +195,11 @@ function embedderRunEntryPoint(content, format, filename) {
   format ||= moduleFormats.kCommonJS;
   filename ||= process.execPath;
 
+  // Initialize SEA VFS before running the main script so fs hooks are active
+  if (isLoadingSea) {
+    initSeaVfs();
+  }
+
   if (format === moduleFormats.kCommonJS) {
     return embedderRunCjs(content, filename);
   } else if (format === moduleFormats.kModule) {

lib/internal/vfs/sea.js

@@ -1,6 +1,6 @@
 'use strict';
 
-const { isSea } = internalBinding('sea');
+const { isSea, getAssetKeys } = internalBinding('sea');
 const { kEmptyObject, getLazy } = require('internal/util');
 
 // Lazy-loaded VFS
@@ -20,13 +20,19 @@ const lazySEAProvider = getLazy(
  * @param {object} [options] Configuration options
  * @param {string} [options.prefix] Mount point prefix for SEA assets
  * @param {boolean} [options.moduleHooks] Whether to enable require/import hooks
- * @returns {VirtualFileSystem|null} The VFS instance, or null if not running as SEA
+ * @returns {VirtualFileSystem|null} The VFS instance, or null if not running as SEA or no assets
  */
 function createSeaVfs(options = kEmptyObject) {
   if (!isSea()) {
     return null;
   }
 
+  // Only create VFS if there are VFS assets
+  const keys = getAssetKeys();
+  if (!keys || keys.length === 0) {
+    return null;
+  }
+
   const VirtualFileSystem = lazyVirtualFileSystem();
   const SEAProvider = lazySEAProvider();