summaryrefslogtreecommitdiffstats
path: root/cc/PRESUBMIT.py
blob: e133e9ab5f069b79d4c5ab00c759f57a03dd51cc (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
# Copyright (c) 2012 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.

"""Top-level presubmit script for cc.

See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts for
details on the presubmit API built into gcl.
"""

import re
import string

CC_SOURCE_FILES=(r'^cc/.*\.(cc|h)$',)
CC_PERF_TEST =(r'^.*_perftest.*\.(cc|h)$',)

def CheckChangeLintsClean(input_api, output_api):
  input_api.cpplint._cpplint_state.ResetErrorCounts()  # reset global state
  source_filter = lambda x: input_api.FilterSourceFile(
    x, white_list=CC_SOURCE_FILES, black_list=None)
  files = [f.AbsoluteLocalPath() for f in
           input_api.AffectedSourceFiles(source_filter)]
  level = 1  # strict, but just warn

  for file_name in files:
    input_api.cpplint.ProcessFile(file_name, level)

  if not input_api.cpplint._cpplint_state.error_count:
    return []

  return [output_api.PresubmitPromptWarning(
    'Changelist failed cpplint.py check.')]

def CheckAsserts(input_api, output_api, white_list=CC_SOURCE_FILES, black_list=None):
  black_list = tuple(black_list or input_api.DEFAULT_BLACK_LIST)
  source_file_filter = lambda x: input_api.FilterSourceFile(x, white_list, black_list)

  assert_files = []
  notreached_files = []

  for f in input_api.AffectedSourceFiles(source_file_filter):
    contents = input_api.ReadFile(f, 'rb')
    # WebKit ASSERT() is not allowed.
    if re.search(r"\bASSERT\(", contents):
      assert_files.append(f.LocalPath())
    # WebKit ASSERT_NOT_REACHED() is not allowed.
    if re.search(r"ASSERT_NOT_REACHED\(", contents):
      notreached_files.append(f.LocalPath())

  if assert_files:
    return [output_api.PresubmitError(
      'These files use ASSERT instead of using DCHECK:',
      items=assert_files)]
  if notreached_files:
    return [output_api.PresubmitError(
      'These files use ASSERT_NOT_REACHED instead of using NOTREACHED:',
      items=notreached_files)]
  return []

def CheckSpamLogging(input_api,
                     output_api,
                     white_list=CC_SOURCE_FILES,
                     black_list=None):
  black_list = tuple(black_list or input_api.DEFAULT_BLACK_LIST)
  source_file_filter = lambda x: input_api.FilterSourceFile(x,
                                                            white_list,
                                                            black_list)

  log_info = []
  printf = []

  for f in input_api.AffectedSourceFiles(source_file_filter):
    contents = input_api.ReadFile(f, 'rb')
    if re.search(r"\bD?LOG\s*\(\s*INFO\s*\)", contents):
      log_info.append(f.LocalPath())
    if re.search(r"\bf?printf\(", contents):
      printf.append(f.LocalPath())

  if log_info:
    return [output_api.PresubmitError(
      'These files spam the console log with LOG(INFO):',
      items=log_info)]
  if printf:
    return [output_api.PresubmitError(
      'These files spam the console log with printf/fprintf:',
      items=printf)]
  return []

def CheckPassByValue(input_api,
                     output_api,
                     white_list=CC_SOURCE_FILES,
                     black_list=None):
  black_list = tuple(black_list or input_api.DEFAULT_BLACK_LIST)
  source_file_filter = lambda x: input_api.FilterSourceFile(x,
                                                            white_list,
                                                            black_list)

  local_errors = []

  # Well-defined simple classes containing only <= 4 ints, or <= 2 floats.
  pass_by_value_types = ['base::Time',
                         'base::TimeTicks',
                         'gfx::Point',
                         'gfx::PointF',
                         'gfx::Rect',
                         'gfx::Size',
                         'gfx::SizeF',
                         'gfx::Vector2d',
                         'gfx::Vector2dF',
                         ]

  for f in input_api.AffectedSourceFiles(source_file_filter):
    contents = input_api.ReadFile(f, 'rb')
    match = re.search(
      r'\bconst +' + '(?P<type>(%s))&' %
        string.join(pass_by_value_types, '|'),
      contents)
    if match:
      local_errors.append(output_api.PresubmitError(
        '%s passes %s by const ref instead of by value.' %
        (f.LocalPath(), match.group('type'))))
  return local_errors

def CheckChangeOnUpload(input_api, output_api):
  results = []
  results += CheckAsserts(input_api, output_api)
  results += CheckSpamLogging(input_api, output_api, black_list=CC_PERF_TEST)
  results += CheckPassByValue(input_api, output_api)
  results += CheckChangeLintsClean(input_api, output_api)
  return results

def GetPreferredTrySlaves(project, change):
  return [
    'linux_layout_rel',
    ]