parser method
Implementation
@override
Future<void> parser(List<String> arguments) async {
final argResults = argParser.parse(arguments);
final watch = argResults['watch'];
final output = argResults['output'];
logger.i('generate locales...');
// 生成Local文件
var result = await _generateLocales(watch, output);
// 注册到yaml文件
if (result) result = await registerAssets('assets/locales/');
// 执行flutter pub get命令
if (result) await runFlutterPubGet();
logger.i('Process finished.');
}