Skip .svn files when copying "lib" directories under /pkg

tools/create_sdk.py

 #!/usr/bin/env python
 #
 # 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.
 #
 # A script which will be invoked from gyp to create an SDK.
 #
 # Usage: create_sdk.py sdk_directory
 #
@@ skipping 404 matching lines @@
 
   for library in ['args', 'intl', 'logging', 'unittest']:
     src_dir = join(HOME, 'pkg', library)
     dest_dir = join(PKG, library)
     os.makedirs(dest_dir)
 
     for filename in os.listdir(src_dir):
       if filename.endswith('.dart'):
         copyfile(join(src_dir, filename), join(dest_dir, filename))
     if exists(join(src_dir, 'lib')):
-      copytree(join(src_dir, 'lib'), join(dest_dir, 'lib'))
+      copytree(join(src_dir, 'lib'), join(dest_dir, 'lib'),
+           ignore=ignore_patterns('.svn'))
 
   # Create and populate pkg/dartdoc.
   dartdoc_src_dir = join(HOME, 'pkg', 'dartdoc')
   dartdoc_dest_dir = join(PKG, 'dartdoc')
   copytree(dartdoc_src_dir, dartdoc_dest_dir,
            ignore=ignore_patterns('.svn', 'docs'))
 
   # Fixup dart2js dependencies.
   ReplaceInFiles([
       join(PKG, 'dartdoc', 'dartdoc.dart'),
@@ skipping 49 matching lines @@
   if revision is not None:
     with open(os.path.join(SDK_tmp, 'revision'), 'w') as f:
       f.write(revision + '\n')
       f.close()
 
   move(SDK_tmp, SDK)
   utils.Touch(os.path.join(SDK, 'create.stamp'))
 
 if __name__ == '__main__':
   sys.exit(Main(sys.argv))