move static argParser variable to a createArgParser function (#212)
diff --git a/pkgs/dart_mcp_server/lib/arg_parser.dart b/pkgs/dart_mcp_server/lib/arg_parser.dart
index ccb7844..cc03a91 100644
--- a/pkgs/dart_mcp_server/lib/arg_parser.dart
+++ b/pkgs/dart_mcp_server/lib/arg_parser.dart
@@ -2,4 +2,4 @@
// 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.
-export 'src/arg_parser.dart' show argParser;
+export 'src/arg_parser.dart' show createArgParser;
diff --git a/pkgs/dart_mcp_server/lib/src/arg_parser.dart b/pkgs/dart_mcp_server/lib/src/arg_parser.dart
index ac02e11..a58f8b5 100644
--- a/pkgs/dart_mcp_server/lib/src/arg_parser.dart
+++ b/pkgs/dart_mcp_server/lib/src/arg_parser.dart
@@ -4,37 +4,54 @@
import 'package:args/args.dart';
-final argParser = ArgParser(allowTrailingOptions: false)
- ..addOption(
- dartSdkOption,
- help:
- 'The path to the root of the desired Dart SDK. Defaults to the '
- 'DART_SDK environment variable.',
- )
- ..addOption(
- flutterSdkOption,
- help:
- 'The path to the root of the desired Flutter SDK. Defaults to '
- 'the FLUTTER_SDK environment variable, then searching up from '
- 'the Dart SDK.',
- )
- ..addFlag(
- forceRootsFallbackFlag,
- negatable: true,
- defaultsTo: false,
- help:
- 'Forces a behavior for project roots which uses MCP tools '
- 'instead of the native MCP roots. This can be helpful for '
- 'clients like cursor which claim to have roots support but do '
- 'not actually support it.',
- )
- ..addOption(
- logFileOption,
- help:
- 'Path to a file to log all MPC protocol traffic to. File will be '
- 'overwritten if it exists.',
- )
- ..addFlag(helpFlag, abbr: 'h', help: 'Show usage text');
+/// Creates an arg parser for th MCP server.
+///
+/// The `--help` option is only included if [includeHelp] is `true`.
+///
+/// Passing no options results in the default arg parser.
+ArgParser createArgParser({
+ bool includeHelp = true,
+ bool allowTrailingOptions = false,
+ int? usageLineLength,
+}) {
+ final parser =
+ ArgParser(
+ allowTrailingOptions: allowTrailingOptions,
+ usageLineLength: usageLineLength,
+ )
+ ..addOption(
+ dartSdkOption,
+ help:
+ 'The path to the root of the desired Dart SDK. Defaults to the '
+ 'DART_SDK environment variable.',
+ )
+ ..addOption(
+ flutterSdkOption,
+ help:
+ 'The path to the root of the desired Flutter SDK. Defaults to '
+ 'the FLUTTER_SDK environment variable, then searching up from '
+ 'the Dart SDK.',
+ )
+ ..addFlag(
+ forceRootsFallbackFlag,
+ negatable: true,
+ defaultsTo: false,
+ help:
+ 'Forces a behavior for project roots which uses MCP tools '
+ 'instead of the native MCP roots. This can be helpful for '
+ 'clients like cursor which claim to have roots support but do '
+ 'not actually support it.',
+ )
+ ..addOption(
+ logFileOption,
+ help:
+ 'Path to a file to log all MPC protocol traffic to. File will be '
+ 'overwritten if it exists.',
+ );
+
+ if (includeHelp) parser.addFlag(helpFlag, abbr: 'h', help: 'Show usage text');
+ return parser;
+}
const dartSdkOption = 'dart-sdk';
const flutterSdkOption = 'flutter-sdk';
diff --git a/pkgs/dart_mcp_server/lib/src/server.dart b/pkgs/dart_mcp_server/lib/src/server.dart
index e28645f..b874182 100644
--- a/pkgs/dart_mcp_server/lib/src/server.dart
+++ b/pkgs/dart_mcp_server/lib/src/server.dart
@@ -144,6 +144,9 @@
}
}
+ /// The default arg parser for the MCP Server.
+ static final argParser = createArgParser();
+
@override
final LocalProcessManager processManager;
