Use gn_helpers to [se]serialize GN lists.

build/android/gyp/strip_library_for_device.py

 #!/usr/bin/env python
 #
 # Copyright 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+import ast
 import optparse
 import os
 import sys
 
 from util import build_utils
 
 
 def StripLibrary(android_strip, android_strip_args, library_path, output_path):
   if build_utils.IsTimeStale(output_path, [library_path]):
     strip_cmd = ([android_strip] +
                  android_strip_args +
                  ['-o', output_path, library_path])
     build_utils.CheckOutput(strip_cmd)
 
 
 def main(args):
   args = build_utils.ExpandFileArgs(args)
 
   parser = optparse.OptionParser()
   build_utils.AddDepfileOption(parser)
 
   parser.add_option('--android-strip',
       help='Path to the toolchain\'s strip binary')
   parser.add_option('--android-strip-arg', action='append',
       help='Argument to be passed to strip')
   parser.add_option('--libraries-dir',
       help='Directory for un-stripped libraries')
   parser.add_option('--stripped-libraries-dir',
-      help='Directory for stripped libraries')
+      help='Directory for stripped libraries in JSON format')
   parser.add_option('--libraries',
-      help='List of libraries to strip')
+      help='List of libraries to strip in JSON format.')
   parser.add_option('--stamp', help='Path to touch on success')
 
   options, _ = parser.parse_args(args)
 
-  libraries = build_utils.ParseGypList(options.libraries)
+  libraries = ast.literal_eval(options.libraries)

[Dirk Pranke, 2016/01/30 00:26:48]

if this is in JSON format, why are you using literal_eval rather than
json.loads() ?

[brettw, 2016/01/30 05:48:22]

Clarified to "Python dictionary format"

 
   build_utils.MakeDirectory(options.stripped_libraries_dir)
 
   for library in libraries:
     for base_path in options.libraries_dir.split(','):
       library_path = os.path.join(base_path, library)
       if (os.path.exists(library_path)):
         break
     stripped_library_path = os.path.join(
         options.stripped_libraries_dir, library)
     StripLibrary(options.android_strip, options.android_strip_arg, library_path,
         stripped_library_path)
 
   if options.stamp:
     build_utils.Touch(options.stamp)
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))