tools/metrics/histograms/PRESUBMIT.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 """
   6 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
   7 for more details on the presubmit API built into gcl.
   8 """
   9
  10
  11 def CheckChange(input_api, output_api):
  12   """Checks that histograms.xml is pretty-printed and well-formatted."""
  13   for f in input_api.AffectedTextFiles():
  14     p = f.AbsoluteLocalPath()
  15     if (input_api.basename(p) == 'histograms.xml'
  16         and input_api.os_path.dirname(p) == input_api.PresubmitLocalPath()):
  17       cwd = input_api.os_path.dirname(p)
  18       exit_code = input_api.subprocess.call(
  19           ['python', 'pretty_print.py', '--presubmit'], cwd=cwd)
  20       if exit_code != 0:
  21         return [output_api.PresubmitError(
  22             'histograms.xml is not formatted correctly; run pretty_print.py '
  23             'to fix')]
  24
  25       exit_code = input_api.subprocess.call(
  26           ['python', 'validate_format.py'], cwd=cwd)
  27       if exit_code != 0:
  28         return [output_api.PresubmitError(
  29             'histograms.xml is not well formatted; run validate_format.py '
  30             'and fix the reported errors')]
  31   return []
  32
  33
  34 def CheckChangeOnUpload(input_api, output_api):
  35   return CheckChange(input_api, output_api)
  36
  37
  38 def CheckChangeOnCommit(input_api, output_api):
  39   return CheckChange(input_api, output_api)