| // Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file | |
| // for details. All rights reserved. Use of this source code is governed by a | |
| // BSD-style license that can be found in the LICENSE file. | |
| import 'dart:io'; | |
| import 'package:args/command_runner.dart'; | |
| abstract class PrintUsageException implements Command<void> { | |
| @override | |
| Never usageException(String message) { | |
| print(message); | |
| printUsage(); | |
| exit(1); | |
| } | |
| } |