Stop recursively including assets from asset folders (#120167)

* add test

* fix

* use preexisting testFileSystem

* fix variant tests

* Revert "use preexisting testFileSystem"

This reverts commit b6df288ef4a6ff007ecd984e98a1a3f2001ad242.

* nit: grammar

packages/flutter_tools/lib/src/asset.dart

@@ -909,22 +909,6 @@ class ManifestAssetBundle implements AssetBundle {
         attributedPackage: attributedPackage,
       );
     }
-
-    final Iterable<Directory> nonVariantSubDirectories = entities
-      .whereType<Directory>()
-      .where((Directory directory) => !_assetVariantDirectoryRegExp.hasMatch(directory.basename));
-    for (final Directory dir in nonVariantSubDirectories) {
-      final String relativePath = _fileSystem.path.relative(dir.path, from: assetBase);
-      final Uri relativePathsUri = Uri.directory(relativePath, windows: _platform.isWindows);
-
-      _parseAssetsFromFolder(packageConfig,
-        flutterManifest,
-        assetBase,
-        cache,
-        result,
-        relativePathsUri
-      );
-    }
   }
 
   void _parseAssetFromFile(

packages/flutter_tools/test/general.shard/asset_bundle_test.dart

@@ -9,11 +9,15 @@ import 'package:file/memory.dart';
 import 'package:flutter_tools/src/artifacts.dart';
 import 'package:flutter_tools/src/asset.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
+import 'package:flutter_tools/src/base/logger.dart';
 import 'package:flutter_tools/src/base/platform.dart';
+import 'package:flutter_tools/src/base/user_messages.dart';
 import 'package:flutter_tools/src/build_info.dart';
 import 'package:flutter_tools/src/bundle_builder.dart';
+import 'package:flutter_tools/src/cache.dart';
 import 'package:flutter_tools/src/devfs.dart';
 import 'package:flutter_tools/src/globals.dart' as globals;
+import 'package:flutter_tools/src/project.dart';
 import 'package:standard_message_codec/standard_message_codec.dart';
 
 import '../src/common.dart';
@@ -69,6 +73,59 @@ void main() {
       ProcessManager: () => FakeProcessManager.any(),
     });
 
+    testWithoutContext('wildcard directories do not include subdirectories', () async {
+      final Platform platform = FakePlatform();
+      final FileSystem fs = MemoryFileSystem.test();
+      Cache.flutterRoot = Cache.defaultFlutterRoot(platform: platform, fileSystem: fs, userMessages: UserMessages());
+
+      fs.file('.packages').createSync();
+      fs.file('pubspec.yaml').writeAsStringSync(
+'''
+name: test
+dependencies:
+  flutter:
+    sdk: flutter
+flutter:
+  assets:
+    - assets/foo/
+    - assets/bar/lizard.png
+'''
+      );
+
+      final List<String> assets = <String>[
+        'assets/foo/dog.png',
+        'assets/foo/sub/cat.png',
+        'assets/bar/lizard.png',
+        'assets/bar/sheep.png'
+      ];
+
+      for (final String asset in assets) {
+        final File assetFile = fs.file(asset);
+        assetFile.createSync(recursive: true);
+        assetFile.writeAsStringSync(asset);
+      }
+
+      final ManifestAssetBundle bundle = ManifestAssetBundle(
+        logger: BufferLogger.test(),
+        fileSystem: fs,
+        platform: platform,
+      );
+
+      await bundle.build(
+        packagesPath: '.packages',
+        flutterProject:  FlutterProject.fromDirectoryTest(fs.currentDirectory),
+      );
+
+      expect(bundle.entries.keys, unorderedEquals(<String>[
+        'AssetManifest.json',
+        'AssetManifest.bin',
+        'FontManifest.json',
+        'NOTICES.Z',
+        'assets/foo/dog.png',
+        'assets/bar/lizard.png'
+      ]));
+    });
+
     testUsingContext('wildcard directories are updated when filesystem changes', () async {
       final File packageFile = globals.fs.file('.packages')..createSync();
       globals.fs.file(globals.fs.path.join('assets', 'foo', 'bar.txt')).createSync(recursive: true);

packages/flutter_tools/test/general.shard/asset_bundle_variant_test.dart

@@ -54,6 +54,9 @@ dependencies:
 flutter:
   assets:
     - assets/
+    - assets/notAVariant/
+    - assets/folder/
+    - assets/normalFolder/
 '''
       );
     });
@@ -184,6 +187,7 @@ dependencies:
 flutter:
   assets:
     - assets/
+    - assets/somewhereElse/
 '''
       );
     });