🎅 resource_sizes.py: Don't print pak file breakdown when there are none

build/android/resource_sizes.py

 #!/usr/bin/python
 # Copyright (c) 2011 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.
 
 """Prints the size of each given file and optionally computes the size of
    libchrome.so without the dependencies added for building with android NDK.
    Also breaks down the contents of the APK to determine the installed size
    and assign size contributions to different classes of file.
 """
@@ skipping 348 matching lines @@
 
   # Output the overall pak file summary.
   total_files = len(paks)
   total_compress_size = sum(pak.compress_size for pak in paks)
   total_file_size = sum(pak.file_size for pak in paks)
   print 'Total pak files: %d' % total_files
   print 'Total compressed size: %s' % _FormatBytes(total_compress_size)
   print 'Total uncompressed size: %s' % _FormatBytes(total_file_size)
   print
 
+  if not paks:
+    return
+
   # Output the table of details about all pak files.
   print '%25s%11s%21s%21s' % (
       'FILENAME', 'RESOURCES', 'COMPRESSED SIZE', 'UNCOMPRESSED SIZE')
   for pak in sorted(paks, key=operator.attrgetter('file_size'), reverse=True):
     print '%25s %10s %12s %6.2f%% %12s %6.2f%%' % (
         pak.filename,
         len(pak.resources),
         _FormatBytes(pak.compress_size),
         100.0 * pak.compress_size / total_compress_size,
         _FormatBytes(pak.file_size),
@@ skipping 210 matching lines @@
 
   if chartjson:
     results_path = os.path.join(options.output_dir, 'results-chart.json')
     logging.critical('Dumping json to %s', results_path)
     with open(results_path, 'w') as json_file:
       json.dump(chartjson, json_file)
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv))