tools/metrics/histograms/histogram_ownership.py

   1 #!/usr/bin/env python
   2 # Copyright 2014 The Chromium Authors. All rights reserved.
   3 # Use of this source code is governed by a BSD-style license that can be
   4 # found in the LICENSE file.
   5
   6 """A simple tool to go through histograms.xml and print out the owners for
   7 histograms.
   8 """
   9
  10 import os
  11 import sys
  12 import xml.etree.ElementTree
  13
  14 sys.path.append(os.path.join(os.path.dirname(__file__), '..', 'common'))
  15 import path_util
  16
  17 DUMMY_OWNER = "Please list the metric's owners. Add more owner tags as needed."
  18
  19 def main():
  20   tree = xml.etree.ElementTree.parse(path_util.GetHistogramsFile())
  21   root = tree.getroot()
  22   assert root.tag == 'histogram-configuration'
  23
  24   root_children = root.getchildren()
  25   histograms = None
  26   for node in root_children:
  27     if node.tag == 'histograms':
  28       histograms = node
  29       break
  30   assert histograms != None
  31
  32   for histogram in histograms.getchildren():
  33     if histogram.tag != 'histogram':
  34       continue
  35
  36     name = histogram.attrib['name']
  37     owners = []
  38     obsolete = False
  39     for node in histogram.getchildren():
  40       if node.tag == 'obsolete':
  41         obsolete = True
  42         continue
  43       if node.tag != 'owner':
  44         continue
  45       if node.text == DUMMY_OWNER:
  46         continue
  47       assert '@' in node.text
  48       owners.append(node.text)
  49
  50     if not obsolete:
  51       if owners:
  52         print name, ' '.join(owners)
  53       else:
  54         print name, 'NO_OWNER'
  55
  56 if __name__ == '__main__':
  57   main()