Reland "Stop recursively including assets from asset directories" (#120312)

* stop recursively including assets from asset directories

* remove unused imports

* lint

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

@@ -69,6 +69,51 @@ void main() {
       ProcessManager: () => FakeProcessManager.any(),
     });
 
+    testUsingContext('wildcard directories do not include subdirectories', () async {
+      globals.fs.file('.packages').createSync();
+      globals.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 = globals.fs.file(
+          globals.fs.path.joinAll(asset.split('/'))
+        );
+        assetFile.createSync(recursive: true);
+      }
+
+      final AssetBundle bundle = AssetBundleFactory.instance.createBundle();
+      await bundle.build(packagesPath: '.packages');
+
+      expect(bundle.entries.keys, unorderedEquals(<String>[
+        'AssetManifest.json',
+        'AssetManifest.bin',
+        'FontManifest.json',
+        'NOTICES.Z',
+        'assets/foo/dog.png',
+        'assets/bar/lizard.png'
+      ]));
+    }, overrides: <Type, Generator>{
+      FileSystem: () => testFileSystem,
+      ProcessManager: () => FakeProcessManager.any(),
+    });
+
     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/
 '''
       );
     });