fix: avoid copying node_modules folder for increased performance

Author: ErlendHer

packages/amplify-cli/src/extensions/amplify-helpers/update-amplify-meta.ts

@@ -77,13 +77,13 @@ const moveBackendResourcesToCurrentCloudBackend = (resources: $TSObject[]): void
     }
 
     fs.ensureDirSync(targetDir);
+    const isLambdaOrCustom =
+      resource?.service === ServiceName.LambdaFunction || (resource?.service && resource?.service.includes('custom'));
 
     // in the case that the resource is being deleted, the sourceDir won't exist
     if (fs.pathExistsSync(sourceDir)) {
-      fs.copySync(sourceDir, targetDir);
-      if (resource?.service === ServiceName.LambdaFunction || (resource?.service && resource?.service.includes('custom'))) {
-        removeNodeModulesDir(targetDir);
-      }
+      const nodeModulesFilterFn = (src: string): boolean => path.basename(src) !== 'node_modules';
+      fs.copySync(sourceDir, targetDir, { ...(isLambdaOrCustom ? { filter: nodeModulesFilterFn } : {}) });
     }
   }
 
@@ -109,18 +109,6 @@ const moveBackendResourcesToCurrentCloudBackend = (resources: $TSObject[]): void
   }
 };
 
-const removeNodeModulesDir = (currentCloudBackendDir: string): void => {
-  const nodeModulesDirs = glob.sync('**/node_modules', {
-    cwd: currentCloudBackendDir,
-    absolute: true,
-  });
-  for (const nodeModulesPath of nodeModulesDirs) {
-    if (fs.existsSync(nodeModulesPath)) {
-      fs.removeSync(nodeModulesPath);
-    }
-  }
-};
-
 /**
  * Update amplify-meta.json and backend-config.json
  */