Add file-filter flag to polymer deploy

pkg/polymer/lib/deploy.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.
 
 /// **Note**: If you already have a `build.dart` in your application, we
 /// recommend to use the `package:polymer/builder.dart` library instead.
 
 /// Temporary deploy command used to create a version of the app that can be
 /// compiled with dart2js and deployed. Following pub layout conventions, this
 /// script will treat any HTML file under a package 'web/' and 'test/'
@@ skipping 18 matching lines @@
 import 'src/build/common.dart' show TransformOptions, phasesForPolymer;
 import 'src/build/runner.dart';
 import 'transformer.dart';
 
 main(List<String> arguments) {
   var args = _parseArgs(arguments);
   if (args == null) exit(1);
 
   var test = args['test'];
   var outDir = args['out'];
+  var filters = [];
+  if (args['file-filter'] != null) {
+    filters = args['file-filter'].split(',');
+  }
 
   var options;
   if (test == null) {
     var transformOps = new TransformOptions(
         directlyIncludeJS: args['js'],
         contentSecurityPolicy: args['csp'],
         releaseMode: !args['debug']);
     var phases = createDeployPhases(transformOps);
     options = new BarbackOptions(phases, outDir,
         // TODO(sigmund): include here also smoke transformer when it's on by
         // default.
         packagePhases: {'polymer': phasesForPolymer});
   } else {
     options = _createTestOptions(
-        test, outDir, args['js'], args['csp'], !args['debug']);
+        test, outDir, args['js'], args['csp'], !args['debug'],
+        filters);
   }
   if (options == null) exit(1);
 
   print('polymer/deploy.dart: creating a deploy target for '
       '"${options.currentPackage}"');
 
   runBarback(options)
       .then((_) => print('Done! All files written to "$outDir"'))
       .catchError(_reportErrorAndExit);
 }
 
 BarbackOptions _createTestOptions(String testFile, String outDir,
-    bool directlyIncludeJS, bool contentSecurityPolicy, bool releaseMode) {
+    bool directlyIncludeJS, bool contentSecurityPolicy, bool releaseMode,
+    List<String> filters) {
 
   var testDir = path.normalize(path.dirname(testFile));
 
   // A test must be allowed to import things in the package.
   // So we must find its package root, given the entry point. We can do this
   // by walking up to find pubspec.yaml.
   var pubspecDir = _findDirWithFile(path.absolute(testDir), 'pubspec.yaml');
   if (pubspecDir == null) {
     print('error: pubspec.yaml file not found, please run this script from '
         'your package root directory or a subdirectory.');
@@ skipping 17 matching lines @@
   _subDirs(pkgDir).forEach((p) { dirs[path.basename(p)] = p; });
   // Note: packageName may be a duplicate of 'polymer', but that's ok (they
   // should be the same value).
   dirs[packageName]= pubspecDir;
   return new BarbackOptions(phases, outDir,
       currentPackage: packageName,
       packageDirs: dirs,
       // TODO(sigmund): include here also smoke transformer when it's on by
       // default.
       packagePhases: {'polymer': phasesForPolymer},
-      transformTests: true);
+      transformTests: true,
+      fileFilter: filters);
 }
 
 String _findDirWithFile(String dir, String filename) {
   while (!new File(path.join(dir, filename)).existsSync()) {
     var parentDir = path.dirname(dir);
     // If we reached root and failed to find it, bail.
     if (parentDir == dir) return null;
     dir = parentDir;
   }
   return dir;
@@ skipping 18 matching lines @@
   if (trace != null) print(trace);
   exit(1);
 }
 
 ArgResults _parseArgs(arguments) {
   var parser = new ArgParser()
       ..addFlag('help', abbr: 'h', help: 'Displays this help message.',
           defaultsTo: false, negatable: false)
       ..addOption('out', abbr: 'o', help: 'Directory to generate files into.',
           defaultsTo: 'out')
+      ..addOption('file-filter', help: 'Do not copy in files that match \n'
+           'these filters to the deployed folder, e.g., ".svn"',
+          defaultsTo: null)
       ..addOption('test', help: 'Deploy the test at the given path.\n'
           'Note: currently this will deploy all tests in its directory,\n'
           'but it will eventually deploy only the specified test.')
       ..addFlag('js', help:
           'deploy replaces *.dart scripts with *.dart.js. This flag \n'
           'leaves "packages/browser/dart.js" to do the replacement at runtime.',
           defaultsTo: true)
       ..addFlag('debug', help:
           'run in debug mode. For example, use the debug polyfill \n'
           'web_components/platform.concat.js instead of the minified one.\n',
@@ skipping 13 matching lines @@
     _showUsage(parser);
     return null;
   }
 }
 
 _showUsage(parser) {
   print('Usage: dart --package-root=packages/ '
       'package:polymer/deploy.dart [options]');
   print(parser.getUsage());
 }