update examples

scripts/enforce_example_publish_none.dart

@@ -0,0 +1,64 @@
+import 'dart:io';
+
+void main() async {
+  final rootDir = Directory.current;
+  await _processDirectory(Directory('${rootDir.path}/packages'));
+  await _processDirectory(Directory('${rootDir.path}/experimental'));
+  await _processDirectory(Directory('${rootDir.path}/deprecated'));
+  print('Done enforcing publish_to: none in example directories.');
+}
+
+Future<void> _processDirectory(Directory dir) async {
+  if (!dir.existsSync()) return;
+
+  await for (final entity in dir.list(recursive: true)) {
+    if (entity is Directory && entity.path.split(Platform.pathSeparator).last == 'example') {
+      final pubspecFile = File('${entity.path}/pubspec.yaml');
+      if (pubspecFile.existsSync()) {
+        await _enforcePublishToNone(pubspecFile);
+      }
+    }
+  }
+}
+
+Future<void> _enforcePublishToNone(File pubspecFile) async {
+  final lines = await pubspecFile.readAsLines();
+  bool hasPublishTo = false;
+  bool isModified = false;
+  final newLines = <String>[];
+
+  for (final line in lines) {
+    if (line.trim().startsWith('publish_to:')) {
+      hasPublishTo = true;
+      if (!line.contains("'none'") && !line.contains('"none"') && !line.contains('none')) {
+        newLines.add("publish_to: 'none'");
+        isModified = true;
+      } else {
+        newLines.add(line);
+      }
+    } else {
+      newLines.add(line);
+    }
+  }
+
+  if (!hasPublishTo) {
+     // Insert after version or description if possible, otherwise at end
+     int insertIndex = -1;
+     for (int i = 0; i < newLines.length; i++) {
+        if (newLines[i].startsWith('version:') || newLines[i].startsWith('description:')) {
+            insertIndex = i + 1;
+        }
+     }
+     if (insertIndex != -1) {
+         newLines.insert(insertIndex, "publish_to: 'none'");
+     } else {
+         newLines.add("publish_to: 'none'");
+     }
+     isModified = true;
+  }
+
+  if (isModified) {
+    await pubspecFile.writeAsString(newLines.join('\n') + '\n');
+    print('Updated ${pubspecFile.path}');
+  }
+}

scripts/update_readme.dart

@@ -84,6 +84,11 @@ Future<List<_Package>> _scanDirectory(
         continue;
       }
 
+      // Skip example directories
+      if (entity.parent.path.split(Platform.pathSeparator).contains('example')) {
+        continue;
+      }
+
       final pubspecContent = await entity.readAsString();
       final name = _getValue(pubspecContent, 'name');
       final description = _getValue(pubspecContent, 'description');