tools/metrics/histograms/update_extension_histograms.py

   1 # Copyright 2013 The Chromium Authors. All rights reserved.
   2 # Use of this source code is governed by a BSD-style license that can be
   3 # found in the LICENSE file.
   4
   5 """Updates the ExtensionEvents and ExtensionFunctions enums in histograms.xml
   6 with values read from extension_event_histogram_value.h and
   7 extension_function_histogram_value.h.
   8
   9 If the file was pretty-printed, the updated version is pretty-printed too.
  10 """
  11
  12 import os
  13 import sys
  14
  15 from update_histogram_enum import UpdateHistogramEnum
  16
  17 if __name__ == '__main__':
  18   if len(sys.argv) > 1:
  19     print >>sys.stderr, 'No arguments expected!'
  20     sys.stderr.write(__doc__)
  21     sys.exit(1)
  22
  23   histograms = (
  24     ('ExtensionEvents',
  25      'extensions/browser/extension_event_histogram_value.h'),
  26     ('ExtensionFunctions',
  27      'extensions/browser/extension_function_histogram_value.h'))
  28   for enum_name, source_header in histograms:
  29     UpdateHistogramEnum(histogram_enum_name=enum_name,
  30                         source_enum_path=source_header,
  31                         start_marker='^enum HistogramValue {',
  32                         end_marker='^ENUM_BOUNDARY')