Path fixes for formatter main.

pkg/analyzer_experimental/bin/formatter.dart

 #!/usr/bin/env 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:path/path.dart' as path;

[Bob Nystrom, 2013/08/28 18:18:55]

Don't forget to add path to your pubspec.yaml too if it isn't already there.

[pquitslund, 2013/08/28 20:29:13]

Already there! :)

 
 import 'package:analyzer_experimental/src/services/formatter_impl.dart';
 
 
 const BINARY_NAME = 'dartfmt';
-const DART_EXT = '.dart';
+final DART_FILE_REGEXP = new RegExp(r'^[^.].*\.dart$', caseSensitive: false);

[Bob Nystrom, 2013/08/28 18:18:55]

Should be "dartFileRegExp" now since it isn't const.

[pquitslund, 2013/08/28 20:29:13]

Done.

 final argParser = _initArgParser();
 
 void main() {
   var options = argParser.parse(new Options().arguments);
   if (options['help']) {
     _printUsage();
     return;
   }
   if (options.rest.isEmpty) {
     _formatStdin(options);
@@ skipping 18 matching lines @@
   } else if (resource is File) {
     _formatFile(resource);
   }
 }
 
 _formatDirectory(dir) => 
     dir.listSync().forEach((resource) => _formatResource(resource));
 
 
 void _formatFile(file) {
-  Uri.parse(file).pathSegments.last;
-  print(file.path);
   if (_isDartFile(file)) {
     try {
       var buffer = new StringBuffer();
       var rawSource = file.readAsStringSync();
       var formatted = _formatCU(rawSource);
       print(formatted);
       file.writeAsStringSync(formatted);
     } catch (e) {
       _log('Error formatting "${file.path}": $e');
     }
   }
 }
 
-//TODO(pquitslund): fix this using 'path'
-_isDartFile(file) => !file.path.startsWith('.') && file.path.endsWith(DART_EXT);
+_isDartFile(file) => DART_FILE_REGEXP.hasMatch(path.basename(file.path));
 
 _formatStdin(options) {
   _log('not supported yet!');
 //  stdin.transform(new StringDecoder())
 //      .listen((String data) => print(data),
 //        onError: (error) => print('Error reading from stdin'),
 //        onDone: () => print('Finished reading data'));
 }
 
 /// Initialize the arg parser instance.
@@ skipping 29 matching lines @@
 
 /// Format the given [src] as a compilation unit.
 String _formatCU(src, {options: const FormatterOptions()}) =>
     new CodeFormatter(options).format(CodeKind.COMPILATION_UNIT, src);
 
 /// Log the given [msg].
 _log(String msg) {
   //TODO(pquitslund): add proper log support
   print(msg);
 }