feat: add base class rule

Author: mcquenji

README.md

@@ -9,6 +9,7 @@ Lint rules for using [Grumpy](https://github.com/necodeIT/grumpy) architecture c
 | [must_call_in_constructor](#must_call_in_constructor) | Require constructors to call methods annotated with @mustCallInConstructor on supertypes or mixins. | ERROR | ✅ | 3 |
 | [abstract_classes_should_set_log_group](#abstract_classes_should_set_log_group) | Abstract classes using LogMixin must override group with their class name, or append to super.group. | ERROR | ✅ | 1 |
 | [concrete_classes_should_set_log_tag](#concrete_classes_should_set_log_tag) | Concrete classes using LogMixin must override logTag with their class name. | ERROR | ✅ | 1 |
+| [base_class](#base_class) | Subclasses of classes annotated with BaseClass must follow layer, naming, and file layout rules. | WARNING | ❌ | 6 |
 
 
 
@@ -89,3 +90,30 @@ class MyConcreteClass with LogMixin {
 
 ```
 
+
+
+
+### base_class
+
+Subclasses of classes annotated with BaseClass must follow layer, naming, and file layout rules.
+#### Codes
+- `base_class_invalid_layer` (WARNING)
+- `base_class_missing_suffix` (WARNING)
+- `base_class_wrong_directory` (WARNING)
+- `base_class_wrong_file_name` (WARNING)
+- `base_class_extra_class` (WARNING)
+- `base_class_missing_extension` (WARNING)
+
+#### Examples
+**✅ DO**
+```dart
+abstract class UserService extends Service {}
+
+```
+
+**❌ DON'T**
+```dart
+abstract class UserManager extends Service {}
+
+```
+

lib/main.dart

@@ -2,6 +2,7 @@ import 'package:analysis_server_plugin/plugin.dart';
 import 'package:analysis_server_plugin/registry.dart';
 import 'package:grumpy_lints/src/rule.dart';
 import 'package:grumpy_lints/src/rules/abstract_classes_should_set_log_group_rule.dart';
+import 'package:grumpy_lints/src/rules/base_class_rule.dart';
 import 'package:grumpy_lints/src/rules/concrete_classes_should_set_log_tag_rule.dart';
 import 'package:grumpy_lints/src/rules/must_call_in_constructor_rule.dart';
 
@@ -16,6 +17,7 @@ class GrumpyLints extends Plugin {
     MustCallInConstructorRule(),
     AbstractClassesShouldSetLogGroupRule(),
     ConcreteClassesShouldSetLogTagRule(),
+    BaseClassRule(),
   ];
 
   @override

lib/src/context.dart

@@ -28,15 +28,24 @@ extension GrumpyLog on RuleContext {
     GrumpyLogSeverity severity,
     String message,
   ) {
-    final root = _findWorkspaceRoot(context);
-    final file = File(_joinPath(root, logFileName));
     final timestamp = DateTime.now().toIso8601String();
     final line = '[${severity.name.toUpperCase()}] $timestamp $message';
-    file.writeAsStringSync(
-      '$line${Platform.lineTerminator}',
-      mode: FileMode.append,
-      flush: true,
-    );
+    if (_shouldPrintToStdout()) {
+      _printLine(severity, line);
+      return;
+    }
+
+    final root = _findWorkspaceRoot(context);
+    final file = File(_joinPath(root, logFileName));
+    try {
+      file.writeAsStringSync(
+        '$line${Platform.lineTerminator}',
+        mode: FileMode.append,
+        flush: true,
+      );
+    } on FileSystemException {
+      _printLine(severity, line);
+    }
   }
 
   static String _findWorkspaceRoot(RuleContext context) {
@@ -54,4 +63,24 @@ extension GrumpyLog on RuleContext {
     }
     return '$root$separator$file';
   }
+
+  static bool _shouldPrintToStdout() {
+    final env = Platform.environment;
+    if (env['GRUMPY_LINTS_LOG_STDOUT'] == '1' ||
+        env['GRUMPY_LINTS_LOG_STDOUT']?.toLowerCase() == 'true') {
+      return true;
+    }
+    return env.containsKey('DART_TEST') ||
+        env.containsKey('FLUTTER_TEST') ||
+        env.containsKey('UNIT_TEST');
+  }
+
+  static void _printLine(GrumpyLogSeverity severity, String line) {
+    if (severity == GrumpyLogSeverity.error ||
+        severity == GrumpyLogSeverity.warning) {
+      stderr.writeln(line);
+      return;
+    }
+    stdout.writeln(line);
+  }
 }