Support for specifying an output directory (issue #106)

lib/src/options.dart

 // Copyright (c) 2012, 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.
 
 library options;
 
 import 'package:args/args.dart';
 
 class CompilerOptions {
   final bool warningsAsErrors;
 
   /** True to show informational messages. The `--verbose` flag. */
   final bool verbose;
 
   /** Remove any generated files. */
   final bool clean;
 
   final bool useColors;
 
   final List<String> rest;
 
   // We could make this faster, if it ever matters.
   factory CompilerOptions() => parse(['']);
 
   CompilerOptions.fromArgs(ArgResults args)
     : warningsAsErrors = args['warnings_as_errors'],
       verbose = args['verbose'],
       clean = args['clean'],
-      useColors = !args['colors'],
+      useColors = args['colors'],
       rest = args.rest;
 
   static CompilerOptions parse(List<String> arguments) {
     var parser = new ArgParser()
       ..addFlag('verbose', help: 'Display detail info', defaultsTo: false)
       ..addFlag('clean', help: 'Remove all generated files', defaultsTo: false)
       ..addFlag('warnings_as_errors', help: 'Warning handled as errors',
           defaultsTo: false)
       ..addFlag('colors', help: 'Display errors/warnings in colored text',
           defaultsTo: true)
       ..addFlag('help', help: 'Displays this help message', defaultsTo: false);
 
     var results = parser.parse(arguments);
     if (results['help'] || results.rest.length == 0) {
       print('Usage: [options...] sourcefile [outputPath]\n');
       print(parser.getUsage());
       print("   sourcefile - template file filename.html");
       print("   outputPath - if specified directory to generate files; if not");
       print("                same directory as sourcefile");
       return null;
     }
 
     return new CompilerOptions.fromArgs(results);
   }
 }