Cronet API Refactoring

components/cronet/tools/jar_src.py

 #!/usr/bin/env python
 #
 # Copyright 2014 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 optparse
 import os
 import sys
 import tempfile
@@ skipping 97 matching lines @@
         number_of_file_instances += 1
         dir_to_files_map[src_search_dir].append(src_file)
     if (number_of_file_instances > 1):
       raise Exception(
           'There is more than one instance of file %s in %s'
           % (src_file, src_search_dirs))
     if (number_of_file_instances < 1):
       raise Exception(
           'Unable to find file %s in %s' % (src_file, src_search_dirs))
 
+  # Delete the old output file if any.
   if os.path.isfile(options.jar_path):
     os.remove(options.jar_path)
 
   # Jar the sources from every source search directory.
   for src_search_dir in src_search_dirs:
     if len(dir_to_files_map[src_search_dir]) > 0:
       JarSources(src_search_dir, dir_to_files_map[src_search_dir],
                  options.jar_path)
     else:
       raise Exception(
@@ skipping 15 matching lines @@
   # Clean up temporary output directory.
   if unzipped_jar_path:
     build_utils.DeleteDirectory(unzipped_jar_path)
 
   if options.stamp:
     build_utils.Touch(options.stamp)
 
 if __name__ == '__main__':
   sys.exit(main())