cc/PRESUBMIT.py

   1 # Copyright (c) 2012 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 """Top-level presubmit script for cc.
   6
   7 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts for
   8 details on the presubmit API built into gcl.
   9 """
  10
  11 import re
  12 import string
  13
  14 CC_SOURCE_FILES=(r'^cc/.*\.(cc|h)$',)
  15 CC_PERF_TEST =(r'^.*_perftest.*\.(cc|h)$',)
  16
  17 def CheckChangeLintsClean(input_api, output_api):
  18   input_api.cpplint._cpplint_state.ResetErrorCounts()  # reset global state
  19   source_filter = lambda x: input_api.FilterSourceFile(
  20     x, white_list=CC_SOURCE_FILES, black_list=None)
  21   files = [f.AbsoluteLocalPath() for f in
  22            input_api.AffectedSourceFiles(source_filter)]
  23   level = 1  # strict, but just warn
  24
  25   for file_name in files:
  26     input_api.cpplint.ProcessFile(file_name, level)
  27
  28   if not input_api.cpplint._cpplint_state.error_count:
  29     return []
  30
  31   return [output_api.PresubmitPromptWarning(
  32     'Changelist failed cpplint.py check.')]
  33
  34 def CheckAsserts(input_api, output_api, white_list=CC_SOURCE_FILES, black_list=None):
  35   black_list = tuple(black_list or input_api.DEFAULT_BLACK_LIST)
  36   source_file_filter = lambda x: input_api.FilterSourceFile(x, white_list, black_list)
  37
  38   assert_files = []
  39   notreached_files = []
  40
  41   for f in input_api.AffectedSourceFiles(source_file_filter):
  42     contents = input_api.ReadFile(f, 'rb')
  43     # WebKit ASSERT() is not allowed.
  44     if re.search(r"\bASSERT\(", contents):
  45       assert_files.append(f.LocalPath())
  46     # WebKit ASSERT_NOT_REACHED() is not allowed.
  47     if re.search(r"ASSERT_NOT_REACHED\(", contents):
  48       notreached_files.append(f.LocalPath())
  49
  50   if assert_files:
  51     return [output_api.PresubmitError(
  52       'These files use ASSERT instead of using DCHECK:',
  53       items=assert_files)]
  54   if notreached_files:
  55     return [output_api.PresubmitError(
  56       'These files use ASSERT_NOT_REACHED instead of using NOTREACHED:',
  57       items=notreached_files)]
  58   return []
  59
  60 def CheckSpamLogging(input_api,
  61                      output_api,
  62                      white_list=CC_SOURCE_FILES,
  63                      black_list=None):
  64   black_list = tuple(black_list or input_api.DEFAULT_BLACK_LIST)
  65   source_file_filter = lambda x: input_api.FilterSourceFile(x,
  66                                                             white_list,
  67                                                             black_list)
  68
  69   log_info = []
  70   printf = []
  71
  72   for f in input_api.AffectedSourceFiles(source_file_filter):
  73     contents = input_api.ReadFile(f, 'rb')
  74     if re.search(r"\bD?LOG\s*\(\s*INFO\s*\)", contents):
  75       log_info.append(f.LocalPath())
  76     if re.search(r"\bf?printf\(", contents):
  77       printf.append(f.LocalPath())
  78
  79   if log_info:
  80     return [output_api.PresubmitError(
  81       'These files spam the console log with LOG(INFO):',
  82       items=log_info)]
  83   if printf:
  84     return [output_api.PresubmitError(
  85       'These files spam the console log with printf/fprintf:',
  86       items=printf)]
  87   return []
  88
  89 def CheckPassByValue(input_api,
  90                      output_api,
  91                      white_list=CC_SOURCE_FILES,
  92                      black_list=None):
  93   black_list = tuple(black_list or input_api.DEFAULT_BLACK_LIST)
  94   source_file_filter = lambda x: input_api.FilterSourceFile(x,
  95                                                             white_list,
  96                                                             black_list)
  97
  98   local_errors = []
  99
 100   # Well-defined simple classes containing only <= 4 ints, or <= 2 floats.
 101   pass_by_value_types = ['base::Time',
 102                          'base::TimeTicks',
 103                          'gfx::Point',
 104                          'gfx::PointF',
 105                          'gfx::Rect',
 106                          'gfx::Size',
 107                          'gfx::SizeF',
 108                          'gfx::Vector2d',
 109                          'gfx::Vector2dF',
 110                          ]
 111
 112   for f in input_api.AffectedSourceFiles(source_file_filter):
 113     contents = input_api.ReadFile(f, 'rb')
 114     match = re.search(
 115       r'\bconst +' + '(?P<type>(%s))&' %
 116         string.join(pass_by_value_types, '|'),
 117       contents)
 118     if match:
 119       local_errors.append(output_api.PresubmitError(
 120         '%s passes %s by const ref instead of by value.' %
 121         (f.LocalPath(), match.group('type'))))
 122   return local_errors
 123
 124 def CheckChangeOnUpload(input_api, output_api):
 125   results = []
 126   results += CheckAsserts(input_api, output_api)
 127   results += CheckSpamLogging(input_api, output_api, black_list=CC_PERF_TEST)
 128   results += CheckPassByValue(input_api, output_api)
 129   results += CheckChangeLintsClean(input_api, output_api)
 130   return results
 131
 132 def GetPreferredTrySlaves(project, change):
 133   return [
 134     'linux_layout_rel',
 135     ]