Change to use Pathos

pkg/docgen/bin/docgen.dart

 // Copyright (c) 2013, 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/args.dart';
 import 'package:logging/logging.dart';
 
 import '../lib/docgen.dart';
-import '../../../sdk/lib/_internal/compiler/implementation/mirrors/mirrors.dart';
-import '../../../sdk/lib/_internal/compiler/implementation/mirrors/mirrors_util.dart';
 
 /**
  * Analyzes Dart files and generates a representation of included libraries, 
  * classes, and members. 
  */
 void main() {
   logger.onRecord.listen((record) => print(record.message));
   var results = initArgParser().parse(new Options().arguments);
-  if (results["help"]) return;  
-  new Docgen(results).analyze(listLibraries(results.rest));
+  if (results['help']) return;  
+  new Docgen(results);
 }
 
 /**
  * Creates parser for docgen command line arguments. 
  */
 ArgParser initArgParser() {
   var parser = new ArgParser();
-  parser.addFlag("help", abbr: "h", 
-      help: "Prints help and usage information.", 
+  parser.addFlag('help', abbr: 'h', 
+      help: 'Prints help and usage information.', 
       negatable: false, 
       callback: (help) {
         if (help) {
           logger.info(parser.getUsage());
           logger.info(usage);
         }
       });
-  parser.addFlag("verbose", abbr: "v", 
-      help: "Output more logging information.", negatable: false, 
+  parser.addFlag('verbose', abbr: 'v', 
+      help: 'Output more logging information.', negatable: false, 
       callback: (verbose) {
         if (verbose) Logger.root.level = Level.FINEST;
       });
-  parser.addOption("output-format", abbr: "o", 
-      help: "Sets the output format.", 
-      allowed: ["yaml", "json"], 
-      allowedHelp: {"yaml" : "Outputs to YAML.", 
-        "json" : "Outputs to JSON."});
-  parser.addFlag("yaml", abbr: "y", 
-      help: "Same as output-format=yaml.", negatable: false);
-  parser.addFlag("json", abbr: "j", 
-      help: "Same as output-format=json.", negatable: false);
-  parser.addFlag("include-private", 
-      help: "Flag to include private declarations.", negatable: false);
-  parser.addFlag("include-sdk", 
-      help: "Flag to parse SDK Library files.", negatable: false);
+  parser.addOption('output-format', abbr: 'o', 
+      help: 'Sets the output format.', 
+      allowed: ['yaml', 'json'], 
+      allowedHelp: {'yaml' : 'Outputs to YAML. (Default)', 
+        'json' : 'Outputs to JSON.'});
+  parser.addFlag('yaml', abbr: 'y', 
+      help: 'Same as output-format=yaml.', negatable: false);
+  parser.addFlag('json', abbr: 'j', 
+      help: 'Same as output-format=json.', negatable: false);
+  parser.addFlag('include-private', 
+      help: 'Flag to include private declarations.', negatable: false);
+  parser.addFlag('include-sdk', 
+      help: 'Flag to parse SDK Library files.', negatable: false);
   
   return parser;
 }