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 Chromium.
   6
   7 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
   8 for more details about the presubmit API built into gcl.
   9 """
  10
  11
  12 import re
  13 import subprocess
  14 import sys
  15
  16
  17 _EXCLUDED_PATHS = (
  18     r"^breakpad[\\\/].*",
  19     r"^native_client_sdk[\\\/]src[\\\/]build_tools[\\\/]make_rules.py",
  20     r"^native_client_sdk[\\\/]src[\\\/]build_tools[\\\/]make_simple.py",
  21     r"^native_client_sdk[\\\/]src[\\\/]tools[\\\/].*.mk",
  22     r"^net[\\\/]tools[\\\/]spdyshark[\\\/].*",
  23     r"^skia[\\\/].*",
  24     r"^v8[\\\/].*",
  25     r".*MakeFile$",
  26     r".+_autogen\.h$",
  27     r".+[\\\/]pnacl_shim\.c$",
  28     r"^gpu[\\\/]config[\\\/].*_list_json\.cc$",
  29 )
  30
  31 # TestRunner library is temporarily excluded from pan-project checks until
  32 # it's transitioned to chromium coding style.
  33 _TESTRUNNER_PATHS = (
  34     r"^content[\\\/]shell[\\\/]renderer[\\\/]test_runner[\\\/].*",
  35     r"^content[\\\/]shell[\\\/]common[\\\/]test_runner[\\\/].*",
  36 )
  37
  38 # Fragment of a regular expression that matches C++ and Objective-C++
  39 # implementation files.
  40 _IMPLEMENTATION_EXTENSIONS = r'\.(cc|cpp|cxx|mm)$'
  41
  42 # Regular expression that matches code only used for test binaries
  43 # (best effort).
  44 _TEST_CODE_EXCLUDED_PATHS = (
  45     r'.*[/\\](fake_|test_|mock_).+%s' % _IMPLEMENTATION_EXTENSIONS,
  46     r'.+_test_(base|support|util)%s' % _IMPLEMENTATION_EXTENSIONS,
  47     r'.+_(api|browser|perf|pixel|unit|ui)?test(_[a-z]+)?%s' %
  48         _IMPLEMENTATION_EXTENSIONS,
  49     r'.+profile_sync_service_harness%s' % _IMPLEMENTATION_EXTENSIONS,
  50     r'.*[/\\](test|tool(s)?)[/\\].*',
  51     # content_shell is used for running layout tests.
  52     r'content[/\\]shell[/\\].*',
  53     # At request of folks maintaining this folder.
  54     r'chrome[/\\]browser[/\\]automation[/\\].*',
  55     # Non-production example code.
  56     r'mojo[/\\]examples[/\\].*',
  57 )
  58
  59 _TEST_ONLY_WARNING = (
  60     'You might be calling functions intended only for testing from\n'
  61     'production code.  It is OK to ignore this warning if you know what\n'
  62     'you are doing, as the heuristics used to detect the situation are\n'
  63     'not perfect.  The commit queue will not block on this warning.\n'
  64     'Email joi@chromium.org if you have questions.')
  65
  66
  67 _INCLUDE_ORDER_WARNING = (
  68     'Your #include order seems to be broken. Send mail to\n'
  69     'marja@chromium.org if this is not the case.')
  70
  71
  72 _BANNED_OBJC_FUNCTIONS = (
  73     (
  74       'addTrackingRect:',
  75       (
  76        'The use of -[NSView addTrackingRect:owner:userData:assumeInside:] is'
  77        'prohibited. Please use CrTrackingArea instead.',
  78        'http://dev.chromium.org/developers/coding-style/cocoa-dos-and-donts',
  79       ),
  80       False,
  81     ),
  82     (
  83       'NSTrackingArea',
  84       (
  85        'The use of NSTrackingAreas is prohibited. Please use CrTrackingArea',
  86        'instead.',
  87        'http://dev.chromium.org/developers/coding-style/cocoa-dos-and-donts',
  88       ),
  89       False,
  90     ),
  91     (
  92       'convertPointFromBase:',
  93       (
  94        'The use of -[NSView convertPointFromBase:] is almost certainly wrong.',
  95        'Please use |convertPoint:(point) fromView:nil| instead.',
  96        'http://dev.chromium.org/developers/coding-style/cocoa-dos-and-donts',
  97       ),
  98       True,
  99     ),
 100     (
 101       'convertPointToBase:',
 102       (
 103        'The use of -[NSView convertPointToBase:] is almost certainly wrong.',
 104        'Please use |convertPoint:(point) toView:nil| instead.',
 105        'http://dev.chromium.org/developers/coding-style/cocoa-dos-and-donts',
 106       ),
 107       True,
 108     ),
 109     (
 110       'convertRectFromBase:',
 111       (
 112        'The use of -[NSView convertRectFromBase:] is almost certainly wrong.',
 113        'Please use |convertRect:(point) fromView:nil| instead.',
 114        'http://dev.chromium.org/developers/coding-style/cocoa-dos-and-donts',
 115       ),
 116       True,
 117     ),
 118     (
 119       'convertRectToBase:',
 120       (
 121        'The use of -[NSView convertRectToBase:] is almost certainly wrong.',
 122        'Please use |convertRect:(point) toView:nil| instead.',
 123        'http://dev.chromium.org/developers/coding-style/cocoa-dos-and-donts',
 124       ),
 125       True,
 126     ),
 127     (
 128       'convertSizeFromBase:',
 129       (
 130        'The use of -[NSView convertSizeFromBase:] is almost certainly wrong.',
 131        'Please use |convertSize:(point) fromView:nil| instead.',
 132        'http://dev.chromium.org/developers/coding-style/cocoa-dos-and-donts',
 133       ),
 134       True,
 135     ),
 136     (
 137       'convertSizeToBase:',
 138       (
 139        'The use of -[NSView convertSizeToBase:] is almost certainly wrong.',
 140        'Please use |convertSize:(point) toView:nil| instead.',
 141        'http://dev.chromium.org/developers/coding-style/cocoa-dos-and-donts',
 142       ),
 143       True,
 144     ),
 145 )
 146
 147
 148 _BANNED_CPP_FUNCTIONS = (
 149     # Make sure that gtest's FRIEND_TEST() macro is not used; the
 150     # FRIEND_TEST_ALL_PREFIXES() macro from base/gtest_prod_util.h should be
 151     # used instead since that allows for FLAKY_ and DISABLED_ prefixes.
 152     (
 153       'FRIEND_TEST(',
 154       (
 155        'Chromium code should not use gtest\'s FRIEND_TEST() macro. Include',
 156        'base/gtest_prod_util.h and use FRIEND_TEST_ALL_PREFIXES() instead.',
 157       ),
 158       False,
 159       (),
 160     ),
 161     (
 162       'ScopedAllowIO',
 163       (
 164        'New code should not use ScopedAllowIO. Post a task to the blocking',
 165        'pool or the FILE thread instead.',
 166       ),
 167       True,
 168       (
 169         r"^components[\\\/]breakpad[\\\/]app[\\\/]breakpad_mac\.mm$",
 170         r"^content[\\\/]shell[\\\/]browser[\\\/]shell_browser_main\.cc$",
 171         r"^content[\\\/]shell[\\\/]browser[\\\/]shell_message_filter\.cc$",
 172         r"^net[\\\/]disk_cache[\\\/]cache_util\.cc$",
 173       ),
 174     ),
 175     (
 176       'SkRefPtr',
 177       (
 178         'The use of SkRefPtr is prohibited. ',
 179         'Please use skia::RefPtr instead.'
 180       ),
 181       True,
 182       (),
 183     ),
 184     (
 185       'SkAutoRef',
 186       (
 187         'The indirect use of SkRefPtr via SkAutoRef is prohibited. ',
 188         'Please use skia::RefPtr instead.'
 189       ),
 190       True,
 191       (),
 192     ),
 193     (
 194       'SkAutoTUnref',
 195       (
 196         'The use of SkAutoTUnref is dangerous because it implicitly ',
 197         'converts to a raw pointer. Please use skia::RefPtr instead.'
 198       ),
 199       True,
 200       (),
 201     ),
 202     (
 203       'SkAutoUnref',
 204       (
 205         'The indirect use of SkAutoTUnref through SkAutoUnref is dangerous ',
 206         'because it implicitly converts to a raw pointer. ',
 207         'Please use skia::RefPtr instead.'
 208       ),
 209       True,
 210       (),
 211     ),
 212     (
 213       r'/HANDLE_EINTR\(.*close',
 214       (
 215        'HANDLE_EINTR(close) is invalid. If close fails with EINTR, the file',
 216        'descriptor will be closed, and it is incorrect to retry the close.',
 217        'Either call close directly and ignore its return value, or wrap close',
 218        'in IGNORE_EINTR to use its return value. See http://crbug.com/269623'
 219       ),
 220       True,
 221       (),
 222     ),
 223     (
 224       r'/IGNORE_EINTR\((?!.*close)',
 225       (
 226        'IGNORE_EINTR is only valid when wrapping close. To wrap other system',
 227        'calls, use HANDLE_EINTR. See http://crbug.com/269623',
 228       ),
 229       True,
 230       (
 231         # Files that #define IGNORE_EINTR.
 232         r'^base[\\\/]posix[\\\/]eintr_wrapper\.h$',
 233         r'^ppapi[\\\/]tests[\\\/]test_broker\.cc$',
 234       ),
 235     ),
 236 )
 237
 238
 239 _VALID_OS_MACROS = (
 240     # Please keep sorted.
 241     'OS_ANDROID',
 242     'OS_BSD',
 243     'OS_CAT',       # For testing.
 244     'OS_CHROMEOS',
 245     'OS_FREEBSD',
 246     'OS_IOS',
 247     'OS_LINUX',
 248     'OS_MACOSX',
 249     'OS_NACL',
 250     'OS_OPENBSD',
 251     'OS_POSIX',
 252     'OS_SOLARIS',
 253     'OS_WIN',
 254 )
 255
 256
 257 def _CheckNoProductionCodeUsingTestOnlyFunctions(input_api, output_api):
 258   """Attempts to prevent use of functions intended only for testing in
 259   non-testing code. For now this is just a best-effort implementation
 260   that ignores header files and may have some false positives. A
 261   better implementation would probably need a proper C++ parser.
 262   """
 263   # We only scan .cc files and the like, as the declaration of
 264   # for-testing functions in header files are hard to distinguish from
 265   # calls to such functions without a proper C++ parser.
 266   file_inclusion_pattern = r'.+%s' % _IMPLEMENTATION_EXTENSIONS
 267
 268   base_function_pattern = r'ForTest(ing)?|for_test(ing)?'
 269   inclusion_pattern = input_api.re.compile(r'(%s)\s*\(' % base_function_pattern)
 270   comment_pattern = input_api.re.compile(r'//.*%s' % base_function_pattern)
 271   exclusion_pattern = input_api.re.compile(
 272     r'::[A-Za-z0-9_]+(%s)|(%s)[^;]+\{' % (
 273       base_function_pattern, base_function_pattern))
 274
 275   def FilterFile(affected_file):
 276     black_list = (_EXCLUDED_PATHS +
 277                   _TEST_CODE_EXCLUDED_PATHS +
 278                   input_api.DEFAULT_BLACK_LIST)
 279     return input_api.FilterSourceFile(
 280       affected_file,
 281       white_list=(file_inclusion_pattern, ),
 282       black_list=black_list)
 283
 284   problems = []
 285   for f in input_api.AffectedSourceFiles(FilterFile):
 286     local_path = f.LocalPath()
 287     for line_number, line in f.ChangedContents():
 288       if (inclusion_pattern.search(line) and
 289           not comment_pattern.search(line) and
 290           not exclusion_pattern.search(line)):
 291         problems.append(
 292           '%s:%d\n    %s' % (local_path, line_number, line.strip()))
 293
 294   if problems:
 295     return [output_api.PresubmitPromptOrNotify(_TEST_ONLY_WARNING, problems)]
 296   else:
 297     return []
 298
 299
 300 def _CheckNoIOStreamInHeaders(input_api, output_api):
 301   """Checks to make sure no .h files include <iostream>."""
 302   files = []
 303   pattern = input_api.re.compile(r'^#include\s*<iostream>',
 304                                  input_api.re.MULTILINE)
 305   for f in input_api.AffectedSourceFiles(input_api.FilterSourceFile):
 306     if not f.LocalPath().endswith('.h'):
 307       continue
 308     contents = input_api.ReadFile(f)
 309     if pattern.search(contents):
 310       files.append(f)
 311
 312   if len(files):
 313     return [ output_api.PresubmitError(
 314         'Do not #include <iostream> in header files, since it inserts static '
 315         'initialization into every file including the header. Instead, '
 316         '#include <ostream>. See http://crbug.com/94794',
 317         files) ]
 318   return []
 319
 320
 321 def _CheckNoUNIT_TESTInSourceFiles(input_api, output_api):
 322   """Checks to make sure no source files use UNIT_TEST"""
 323   problems = []
 324   for f in input_api.AffectedFiles():
 325     if (not f.LocalPath().endswith(('.cc', '.mm'))):
 326       continue
 327
 328     for line_num, line in f.ChangedContents():
 329       if 'UNIT_TEST ' in line or line.endswith('UNIT_TEST'):
 330         problems.append('    %s:%d' % (f.LocalPath(), line_num))
 331
 332   if not problems:
 333     return []
 334   return [output_api.PresubmitPromptWarning('UNIT_TEST is only for headers.\n' +
 335       '\n'.join(problems))]
 336
 337
 338 def _CheckNoNewWStrings(input_api, output_api):
 339   """Checks to make sure we don't introduce use of wstrings."""
 340   problems = []
 341   for f in input_api.AffectedFiles():
 342     if (not f.LocalPath().endswith(('.cc', '.h')) or
 343         f.LocalPath().endswith(('test.cc', '_win.cc', '_win.h'))):
 344       continue
 345
 346     allowWString = False
 347     for line_num, line in f.ChangedContents():
 348       if 'presubmit: allow wstring' in line:
 349         allowWString = True
 350       elif not allowWString and 'wstring' in line:
 351         problems.append('    %s:%d' % (f.LocalPath(), line_num))
 352         allowWString = False
 353       else:
 354         allowWString = False
 355
 356   if not problems:
 357     return []
 358   return [output_api.PresubmitPromptWarning('New code should not use wstrings.'
 359       '  If you are calling a cross-platform API that accepts a wstring, '
 360       'fix the API.\n' +
 361       '\n'.join(problems))]
 362
 363
 364 def _CheckNoDEPSGIT(input_api, output_api):
 365   """Make sure .DEPS.git is never modified manually."""
 366   if any(f.LocalPath().endswith('.DEPS.git') for f in
 367       input_api.AffectedFiles()):
 368     return [output_api.PresubmitError(
 369       'Never commit changes to .DEPS.git. This file is maintained by an\n'
 370       'automated system based on what\'s in DEPS and your changes will be\n'
 371       'overwritten.\n'
 372       'See http://code.google.com/p/chromium/wiki/UsingNewGit#Rolling_DEPS\n'
 373       'for more information')]
 374   return []
 375
 376
 377 def _CheckNoBannedFunctions(input_api, output_api):
 378   """Make sure that banned functions are not used."""
 379   warnings = []
 380   errors = []
 381
 382   file_filter = lambda f: f.LocalPath().endswith(('.mm', '.m', '.h'))
 383   for f in input_api.AffectedFiles(file_filter=file_filter):
 384     for line_num, line in f.ChangedContents():
 385       for func_name, message, error in _BANNED_OBJC_FUNCTIONS:
 386         if func_name in line:
 387           problems = warnings;
 388           if error:
 389             problems = errors;
 390           problems.append('    %s:%d:' % (f.LocalPath(), line_num))
 391           for message_line in message:
 392             problems.append('      %s' % message_line)
 393
 394   file_filter = lambda f: f.LocalPath().endswith(('.cc', '.mm', '.h'))
 395   for f in input_api.AffectedFiles(file_filter=file_filter):
 396     for line_num, line in f.ChangedContents():
 397       for func_name, message, error, excluded_paths in _BANNED_CPP_FUNCTIONS:
 398         def IsBlacklisted(affected_file, blacklist):
 399           local_path = affected_file.LocalPath()
 400           for item in blacklist:
 401             if input_api.re.match(item, local_path):
 402               return True
 403           return False
 404         if IsBlacklisted(f, excluded_paths):
 405           continue
 406         matched = False
 407         if func_name[0:1] == '/':
 408           regex = func_name[1:]
 409           if input_api.re.search(regex, line):
 410             matched = True
 411         elif func_name in line:
 412             matched = True
 413         if matched:
 414           problems = warnings;
 415           if error:
 416             problems = errors;
 417           problems.append('    %s:%d:' % (f.LocalPath(), line_num))
 418           for message_line in message:
 419             problems.append('      %s' % message_line)
 420
 421   result = []
 422   if (warnings):
 423     result.append(output_api.PresubmitPromptWarning(
 424         'Banned functions were used.\n' + '\n'.join(warnings)))
 425   if (errors):
 426     result.append(output_api.PresubmitError(
 427         'Banned functions were used.\n' + '\n'.join(errors)))
 428   return result
 429
 430
 431 def _CheckNoPragmaOnce(input_api, output_api):
 432   """Make sure that banned functions are not used."""
 433   files = []
 434   pattern = input_api.re.compile(r'^#pragma\s+once',
 435                                  input_api.re.MULTILINE)
 436   for f in input_api.AffectedSourceFiles(input_api.FilterSourceFile):
 437     if not f.LocalPath().endswith('.h'):
 438       continue
 439     contents = input_api.ReadFile(f)
 440     if pattern.search(contents):
 441       files.append(f)
 442
 443   if files:
 444     return [output_api.PresubmitError(
 445         'Do not use #pragma once in header files.\n'
 446         'See http://www.chromium.org/developers/coding-style#TOC-File-headers',
 447         files)]
 448   return []
 449
 450
 451 def _CheckNoTrinaryTrueFalse(input_api, output_api):
 452   """Checks to make sure we don't introduce use of foo ? true : false."""
 453   problems = []
 454   pattern = input_api.re.compile(r'\?\s*(true|false)\s*:\s*(true|false)')
 455   for f in input_api.AffectedFiles():
 456     if not f.LocalPath().endswith(('.cc', '.h', '.inl', '.m', '.mm')):
 457       continue
 458
 459     for line_num, line in f.ChangedContents():
 460       if pattern.match(line):
 461         problems.append('    %s:%d' % (f.LocalPath(), line_num))
 462
 463   if not problems:
 464     return []
 465   return [output_api.PresubmitPromptWarning(
 466       'Please consider avoiding the "? true : false" pattern if possible.\n' +
 467       '\n'.join(problems))]
 468
 469
 470 def _CheckUnwantedDependencies(input_api, output_api):
 471   """Runs checkdeps on #include statements added in this
 472   change. Breaking - rules is an error, breaking ! rules is a
 473   warning.
 474   """
 475   # We need to wait until we have an input_api object and use this
 476   # roundabout construct to import checkdeps because this file is
 477   # eval-ed and thus doesn't have __file__.
 478   original_sys_path = sys.path
 479   try:
 480     sys.path = sys.path + [input_api.os_path.join(
 481         input_api.PresubmitLocalPath(), 'tools', 'checkdeps')]
 482     import checkdeps
 483     from cpp_checker import CppChecker
 484     from rules import Rule
 485   finally:
 486     # Restore sys.path to what it was before.
 487     sys.path = original_sys_path
 488
 489   added_includes = []
 490   for f in input_api.AffectedFiles():
 491     if not CppChecker.IsCppFile(f.LocalPath()):
 492       continue
 493
 494     changed_lines = [line for line_num, line in f.ChangedContents()]
 495     added_includes.append([f.LocalPath(), changed_lines])
 496
 497   deps_checker = checkdeps.DepsChecker(input_api.PresubmitLocalPath())
 498
 499   error_descriptions = []
 500   warning_descriptions = []
 501   for path, rule_type, rule_description in deps_checker.CheckAddedCppIncludes(
 502       added_includes):
 503     description_with_path = '%s\n    %s' % (path, rule_description)
 504     if rule_type == Rule.DISALLOW:
 505       error_descriptions.append(description_with_path)
 506     else:
 507       warning_descriptions.append(description_with_path)
 508
 509   results = []
 510   if error_descriptions:
 511     results.append(output_api.PresubmitError(
 512         'You added one or more #includes that violate checkdeps rules.',
 513         error_descriptions))
 514   if warning_descriptions:
 515     results.append(output_api.PresubmitPromptOrNotify(
 516         'You added one or more #includes of files that are temporarily\n'
 517         'allowed but being removed. Can you avoid introducing the\n'
 518         '#include? See relevant DEPS file(s) for details and contacts.',
 519         warning_descriptions))
 520   return results
 521
 522
 523 def _CheckFilePermissions(input_api, output_api):
 524   """Check that all files have their permissions properly set."""
 525   args = [sys.executable, 'tools/checkperms/checkperms.py', '--root',
 526           input_api.change.RepositoryRoot()]
 527   for f in input_api.AffectedFiles():
 528     args += ['--file', f.LocalPath()]
 529   errors = []
 530   (errors, stderrdata) = subprocess.Popen(args).communicate()
 531
 532   results = []
 533   if errors:
 534     results.append(output_api.PresubmitError('checkperms.py failed.',
 535                                              errors))
 536   return results
 537
 538
 539 def _CheckNoAuraWindowPropertyHInHeaders(input_api, output_api):
 540   """Makes sure we don't include ui/aura/window_property.h
 541   in header files.
 542   """
 543   pattern = input_api.re.compile(r'^#include\s*"ui/aura/window_property.h"')
 544   errors = []
 545   for f in input_api.AffectedFiles():
 546     if not f.LocalPath().endswith('.h'):
 547       continue
 548     for line_num, line in f.ChangedContents():
 549       if pattern.match(line):
 550         errors.append('    %s:%d' % (f.LocalPath(), line_num))
 551
 552   results = []
 553   if errors:
 554     results.append(output_api.PresubmitError(
 555       'Header files should not include ui/aura/window_property.h', errors))
 556   return results
 557
 558
 559 def _CheckIncludeOrderForScope(scope, input_api, file_path, changed_linenums):
 560   """Checks that the lines in scope occur in the right order.
 561
 562   1. C system files in alphabetical order
 563   2. C++ system files in alphabetical order
 564   3. Project's .h files
 565   """
 566
 567   c_system_include_pattern = input_api.re.compile(r'\s*#include <.*\.h>')
 568   cpp_system_include_pattern = input_api.re.compile(r'\s*#include <.*>')
 569   custom_include_pattern = input_api.re.compile(r'\s*#include ".*')
 570
 571   C_SYSTEM_INCLUDES, CPP_SYSTEM_INCLUDES, CUSTOM_INCLUDES = range(3)
 572
 573   state = C_SYSTEM_INCLUDES
 574
 575   previous_line = ''
 576   previous_line_num = 0
 577   problem_linenums = []
 578   for line_num, line in scope:
 579     if c_system_include_pattern.match(line):
 580       if state != C_SYSTEM_INCLUDES:
 581         problem_linenums.append((line_num, previous_line_num))
 582       elif previous_line and previous_line > line:
 583         problem_linenums.append((line_num, previous_line_num))
 584     elif cpp_system_include_pattern.match(line):
 585       if state == C_SYSTEM_INCLUDES:
 586         state = CPP_SYSTEM_INCLUDES
 587       elif state == CUSTOM_INCLUDES:
 588         problem_linenums.append((line_num, previous_line_num))
 589       elif previous_line and previous_line > line:
 590         problem_linenums.append((line_num, previous_line_num))
 591     elif custom_include_pattern.match(line):
 592       if state != CUSTOM_INCLUDES:
 593         state = CUSTOM_INCLUDES
 594       elif previous_line and previous_line > line:
 595         problem_linenums.append((line_num, previous_line_num))
 596     else:
 597       problem_linenums.append(line_num)
 598     previous_line = line
 599     previous_line_num = line_num
 600
 601   warnings = []
 602   for (line_num, previous_line_num) in problem_linenums:
 603     if line_num in changed_linenums or previous_line_num in changed_linenums:
 604       warnings.append('    %s:%d' % (file_path, line_num))
 605   return warnings
 606
 607
 608 def _CheckIncludeOrderInFile(input_api, f, changed_linenums):
 609   """Checks the #include order for the given file f."""
 610
 611   system_include_pattern = input_api.re.compile(r'\s*#include \<.*')
 612   # Exclude the following includes from the check:
 613   # 1) #include <.../...>, e.g., <sys/...> includes often need to appear in a
 614   # specific order.
 615   # 2) <atlbase.h>, "build/build_config.h"
 616   excluded_include_pattern = input_api.re.compile(
 617       r'\s*#include (\<.*/.*|\<atlbase\.h\>|"build/build_config.h")')
 618   custom_include_pattern = input_api.re.compile(r'\s*#include "(?P<FILE>.*)"')
 619   # Match the final or penultimate token if it is xxxtest so we can ignore it
 620   # when considering the special first include.
 621   test_file_tag_pattern = input_api.re.compile(
 622     r'_[a-z]+test(?=(_[a-zA-Z0-9]+)?\.)')
 623   if_pattern = input_api.re.compile(
 624       r'\s*#\s*(if|elif|else|endif|define|undef).*')
 625   # Some files need specialized order of includes; exclude such files from this
 626   # check.
 627   uncheckable_includes_pattern = input_api.re.compile(
 628       r'\s*#include '
 629       '("ipc/.*macros\.h"|<windows\.h>|".*gl.*autogen.h")\s*')
 630
 631   contents = f.NewContents()
 632   warnings = []
 633   line_num = 0
 634
 635   # Handle the special first include. If the first include file is
 636   # some/path/file.h, the corresponding including file can be some/path/file.cc,
 637   # some/other/path/file.cc, some/path/file_platform.cc, some/path/file-suffix.h
 638   # etc. It's also possible that no special first include exists.
 639   # If the included file is some/path/file_platform.h the including file could
 640   # also be some/path/file_xxxtest_platform.h.
 641   including_file_base_name = test_file_tag_pattern.sub(
 642     '', input_api.os_path.basename(f.LocalPath()))
 643
 644   for line in contents:
 645     line_num += 1
 646     if system_include_pattern.match(line):
 647       # No special first include -> process the line again along with normal
 648       # includes.
 649       line_num -= 1
 650       break
 651     match = custom_include_pattern.match(line)
 652     if match:
 653       match_dict = match.groupdict()
 654       header_basename = test_file_tag_pattern.sub(
 655         '', input_api.os_path.basename(match_dict['FILE'])).replace('.h', '')
 656
 657       if header_basename not in including_file_base_name:
 658         # No special first include -> process the line again along with normal
 659         # includes.
 660         line_num -= 1
 661       break
 662
 663   # Split into scopes: Each region between #if and #endif is its own scope.
 664   scopes = []
 665   current_scope = []
 666   for line in contents[line_num:]:
 667     line_num += 1
 668     if uncheckable_includes_pattern.match(line):
 669       return []
 670     if if_pattern.match(line):
 671       scopes.append(current_scope)
 672       current_scope = []
 673     elif ((system_include_pattern.match(line) or
 674            custom_include_pattern.match(line)) and
 675           not excluded_include_pattern.match(line)):
 676       current_scope.append((line_num, line))
 677   scopes.append(current_scope)
 678
 679   for scope in scopes:
 680     warnings.extend(_CheckIncludeOrderForScope(scope, input_api, f.LocalPath(),
 681                                                changed_linenums))
 682   return warnings
 683
 684
 685 def _CheckIncludeOrder(input_api, output_api):
 686   """Checks that the #include order is correct.
 687
 688   1. The corresponding header for source files.
 689   2. C system files in alphabetical order
 690   3. C++ system files in alphabetical order
 691   4. Project's .h files in alphabetical order
 692
 693   Each region separated by #if, #elif, #else, #endif, #define and #undef follows
 694   these rules separately.
 695   """
 696
 697   warnings = []
 698   for f in input_api.AffectedFiles():
 699     if f.LocalPath().endswith(('.cc', '.h')):
 700       changed_linenums = set(line_num for line_num, _ in f.ChangedContents())
 701       warnings.extend(_CheckIncludeOrderInFile(input_api, f, changed_linenums))
 702
 703   results = []
 704   if warnings:
 705     results.append(output_api.PresubmitPromptOrNotify(_INCLUDE_ORDER_WARNING,
 706                                                       warnings))
 707   return results
 708
 709
 710 def _CheckForVersionControlConflictsInFile(input_api, f):
 711   pattern = input_api.re.compile('^(?:<<<<<<<|>>>>>>>) |^=======$')
 712   errors = []
 713   for line_num, line in f.ChangedContents():
 714     if pattern.match(line):
 715       errors.append('    %s:%d %s' % (f.LocalPath(), line_num, line))
 716   return errors
 717
 718
 719 def _CheckForVersionControlConflicts(input_api, output_api):
 720   """Usually this is not intentional and will cause a compile failure."""
 721   errors = []
 722   for f in input_api.AffectedFiles():
 723     errors.extend(_CheckForVersionControlConflictsInFile(input_api, f))
 724
 725   results = []
 726   if errors:
 727     results.append(output_api.PresubmitError(
 728       'Version control conflict markers found, please resolve.', errors))
 729   return results
 730
 731
 732 def _CheckHardcodedGoogleHostsInLowerLayers(input_api, output_api):
 733   def FilterFile(affected_file):
 734     """Filter function for use with input_api.AffectedSourceFiles,
 735     below.  This filters out everything except non-test files from
 736     top-level directories that generally speaking should not hard-code
 737     service URLs (e.g. src/android_webview/, src/content/ and others).
 738     """
 739     return input_api.FilterSourceFile(
 740       affected_file,
 741       white_list=(r'^(android_webview|base|content|net)[\\\/].*', ),
 742       black_list=(_EXCLUDED_PATHS +
 743                   _TEST_CODE_EXCLUDED_PATHS +
 744                   input_api.DEFAULT_BLACK_LIST))
 745
 746   base_pattern = '"[^"]*google\.com[^"]*"'
 747   comment_pattern = input_api.re.compile('//.*%s' % base_pattern)
 748   pattern = input_api.re.compile(base_pattern)
 749   problems = []  # items are (filename, line_number, line)
 750   for f in input_api.AffectedSourceFiles(FilterFile):
 751     for line_num, line in f.ChangedContents():
 752       if not comment_pattern.search(line) and pattern.search(line):
 753         problems.append((f.LocalPath(), line_num, line))
 754
 755   if problems:
 756     return [output_api.PresubmitPromptOrNotify(
 757         'Most layers below src/chrome/ should not hardcode service URLs.\n'
 758         'Are you sure this is correct? (Contact: joi@chromium.org)',
 759         ['  %s:%d:  %s' % (
 760             problem[0], problem[1], problem[2]) for problem in problems])]
 761   else:
 762     return []
 763
 764
 765 def _CheckNoAbbreviationInPngFileName(input_api, output_api):
 766   """Makes sure there are no abbreviations in the name of PNG files.
 767   """
 768   pattern = input_api.re.compile(r'.*_[a-z]_.*\.png$|.*_[a-z]\.png$')
 769   errors = []
 770   for f in input_api.AffectedFiles(include_deletes=False):
 771     if pattern.match(f.LocalPath()):
 772       errors.append('    %s' % f.LocalPath())
 773
 774   results = []
 775   if errors:
 776     results.append(output_api.PresubmitError(
 777         'The name of PNG files should not have abbreviations. \n'
 778         'Use _hover.png, _center.png, instead of _h.png, _c.png.\n'
 779         'Contact oshima@chromium.org if you have questions.', errors))
 780   return results
 781
 782
 783 def _DepsFilesToCheck(re, changed_lines):
 784   """Helper method for _CheckAddedDepsHaveTargetApprovals. Returns
 785   a set of DEPS entries that we should look up."""
 786   # We ignore deps entries on auto-generated directories.
 787   AUTO_GENERATED_DIRS = ['grit', 'jni']
 788
 789   # This pattern grabs the path without basename in the first
 790   # parentheses, and the basename (if present) in the second. It
 791   # relies on the simple heuristic that if there is a basename it will
 792   # be a header file ending in ".h".
 793   pattern = re.compile(
 794       r"""['"]\+([^'"]+?)(/[a-zA-Z0-9_]+\.h)?['"].*""")
 795   results = set()
 796   for changed_line in changed_lines:
 797     m = pattern.match(changed_line)
 798     if m:
 799       path = m.group(1)
 800       if path.split('/')[0] not in AUTO_GENERATED_DIRS:
 801         results.add('%s/DEPS' % m.group(1))
 802   return results
 803
 804
 805 def _CheckAddedDepsHaveTargetApprovals(input_api, output_api):
 806   """When a dependency prefixed with + is added to a DEPS file, we
 807   want to make sure that the change is reviewed by an OWNER of the
 808   target file or directory, to avoid layering violations from being
 809   introduced. This check verifies that this happens.
 810   """
 811   changed_lines = set()
 812   for f in input_api.AffectedFiles():
 813     filename = input_api.os_path.basename(f.LocalPath())
 814     if filename == 'DEPS':
 815       changed_lines |= set(line.strip()
 816                            for line_num, line
 817                            in f.ChangedContents())
 818   if not changed_lines:
 819     return []
 820
 821   virtual_depended_on_files = _DepsFilesToCheck(input_api.re, changed_lines)
 822   if not virtual_depended_on_files:
 823     return []
 824
 825   if input_api.is_committing:
 826     if input_api.tbr:
 827       return [output_api.PresubmitNotifyResult(
 828           '--tbr was specified, skipping OWNERS check for DEPS additions')]
 829     if not input_api.change.issue:
 830       return [output_api.PresubmitError(
 831           "DEPS approval by OWNERS check failed: this change has "
 832           "no Rietveld issue number, so we can't check it for approvals.")]
 833     output = output_api.PresubmitError
 834   else:
 835     output = output_api.PresubmitNotifyResult
 836
 837   owners_db = input_api.owners_db
 838   owner_email, reviewers = input_api.canned_checks._RietveldOwnerAndReviewers(
 839       input_api,
 840       owners_db.email_regexp,
 841       approval_needed=input_api.is_committing)
 842
 843   owner_email = owner_email or input_api.change.author_email
 844
 845   reviewers_plus_owner = set(reviewers)
 846   if owner_email:
 847     reviewers_plus_owner.add(owner_email)
 848   missing_files = owners_db.files_not_covered_by(virtual_depended_on_files,
 849                                                  reviewers_plus_owner)
 850   unapproved_dependencies = ["'+%s'," % path[:-len('/DEPS')]
 851                              for path in missing_files]
 852
 853   if unapproved_dependencies:
 854     output_list = [
 855       output('Missing LGTM from OWNERS of directories added to DEPS:\n    %s' %
 856              '\n    '.join(sorted(unapproved_dependencies)))]
 857     if not input_api.is_committing:
 858       suggested_owners = owners_db.reviewers_for(missing_files, owner_email)
 859       output_list.append(output(
 860           'Suggested missing target path OWNERS:\n    %s' %
 861           '\n    '.join(suggested_owners or [])))
 862     return output_list
 863
 864   return []
 865
 866
 867 def _CheckSpamLogging(input_api, output_api):
 868   file_inclusion_pattern = r'.+%s' % _IMPLEMENTATION_EXTENSIONS
 869   black_list = (_EXCLUDED_PATHS +
 870                 _TEST_CODE_EXCLUDED_PATHS +
 871                 input_api.DEFAULT_BLACK_LIST +
 872                 (r"^base[\\\/]logging\.h$",
 873                  r"^chrome[\\\/]app[\\\/]chrome_main_delegate\.cc$",
 874                  r"^chrome[\\\/]browser[\\\/]chrome_browser_main\.cc$",
 875                  r"^chrome[\\\/]browser[\\\/]ui[\\\/]startup[\\\/]"
 876                      r"startup_browser_creator\.cc$",
 877                  r"^chrome[\\\/]installer[\\\/]setup[\\\/].*",
 878                  r"^chrome[\\\/]renderer[\\\/]extensions[\\\/]"
 879                      r"logging_native_handler\.cc$",
 880                  r"^remoting[\\\/]base[\\\/]logging\.h$",
 881                  r"^remoting[\\\/]host[\\\/].*",
 882                  r"^sandbox[\\\/]linux[\\\/].*",
 883                  r"^ui[\\\/]aura[\\\/]bench[\\\/]bench_main\.cc$",))
 884   source_file_filter = lambda x: input_api.FilterSourceFile(
 885       x, white_list=(file_inclusion_pattern,), black_list=black_list)
 886
 887   log_info = []
 888   printf = []
 889
 890   for f in input_api.AffectedSourceFiles(source_file_filter):
 891     contents = input_api.ReadFile(f, 'rb')
 892     if re.search(r"\bD?LOG\s*\(\s*INFO\s*\)", contents):
 893       log_info.append(f.LocalPath())
 894     elif re.search(r"\bD?LOG_IF\s*\(\s*INFO\s*,", contents):
 895       log_info.append(f.LocalPath())
 896
 897     if re.search(r"\bprintf\(", contents):
 898       printf.append(f.LocalPath())
 899     elif re.search(r"\bfprintf\((stdout|stderr)", contents):
 900       printf.append(f.LocalPath())
 901
 902   if log_info:
 903     return [output_api.PresubmitError(
 904       'These files spam the console log with LOG(INFO):',
 905       items=log_info)]
 906   if printf:
 907     return [output_api.PresubmitError(
 908       'These files spam the console log with printf/fprintf:',
 909       items=printf)]
 910   return []
 911
 912
 913 def _CheckForAnonymousVariables(input_api, output_api):
 914   """These types are all expected to hold locks while in scope and
 915      so should never be anonymous (which causes them to be immediately
 916      destroyed)."""
 917   they_who_must_be_named = [
 918     'base::AutoLock',
 919     'base::AutoReset',
 920     'base::AutoUnlock',
 921     'SkAutoAlphaRestore',
 922     'SkAutoBitmapShaderInstall',
 923     'SkAutoBlitterChoose',
 924     'SkAutoBounderCommit',
 925     'SkAutoCallProc',
 926     'SkAutoCanvasRestore',
 927     'SkAutoCommentBlock',
 928     'SkAutoDescriptor',
 929     'SkAutoDisableDirectionCheck',
 930     'SkAutoDisableOvalCheck',
 931     'SkAutoFree',
 932     'SkAutoGlyphCache',
 933     'SkAutoHDC',
 934     'SkAutoLockColors',
 935     'SkAutoLockPixels',
 936     'SkAutoMalloc',
 937     'SkAutoMaskFreeImage',
 938     'SkAutoMutexAcquire',
 939     'SkAutoPathBoundsUpdate',
 940     'SkAutoPDFRelease',
 941     'SkAutoRasterClipValidate',
 942     'SkAutoRef',
 943     'SkAutoTime',
 944     'SkAutoTrace',
 945     'SkAutoUnref',
 946   ]
 947   anonymous = r'(%s)\s*[({]' % '|'.join(they_who_must_be_named)
 948   # bad: base::AutoLock(lock.get());
 949   # not bad: base::AutoLock lock(lock.get());
 950   bad_pattern = input_api.re.compile(anonymous)
 951   # good: new base::AutoLock(lock.get())
 952   good_pattern = input_api.re.compile(r'\bnew\s*' + anonymous)
 953   errors = []
 954
 955   for f in input_api.AffectedFiles():
 956     if not f.LocalPath().endswith(('.cc', '.h', '.inl', '.m', '.mm')):
 957       continue
 958     for linenum, line in f.ChangedContents():
 959       if bad_pattern.search(line) and not good_pattern.search(line):
 960         errors.append('%s:%d' % (f.LocalPath(), linenum))
 961
 962   if errors:
 963     return [output_api.PresubmitError(
 964       'These lines create anonymous variables that need to be named:',
 965       items=errors)]
 966   return []
 967
 968
 969 def _CheckCygwinShell(input_api, output_api):
 970   source_file_filter = lambda x: input_api.FilterSourceFile(
 971       x, white_list=(r'.+\.(gyp|gypi)$',))
 972   cygwin_shell = []
 973
 974   for f in input_api.AffectedSourceFiles(source_file_filter):
 975     for linenum, line in f.ChangedContents():
 976       if 'msvs_cygwin_shell' in line:
 977         cygwin_shell.append(f.LocalPath())
 978         break
 979
 980   if cygwin_shell:
 981     return [output_api.PresubmitError(
 982       'These files should not use msvs_cygwin_shell (the default is 0):',
 983       items=cygwin_shell)]
 984   return []
 985
 986
 987 def _CheckJavaStyle(input_api, output_api):
 988   """Runs checkstyle on changed java files and returns errors if any exist."""
 989   original_sys_path = sys.path
 990   try:
 991     sys.path = sys.path + [input_api.os_path.join(
 992         input_api.PresubmitLocalPath(), 'tools', 'android', 'checkstyle')]
 993     import checkstyle
 994   finally:
 995     # Restore sys.path to what it was before.
 996     sys.path = original_sys_path
 997
 998   return checkstyle.RunCheckstyle(
 999       input_api, output_api, 'tools/android/checkstyle/chromium-style-5.0.xml')
1000
1001
1002 def _CommonChecks(input_api, output_api):
1003   """Checks common to both upload and commit."""
1004   results = []
1005   results.extend(input_api.canned_checks.PanProjectChecks(
1006       input_api, output_api,
1007       excluded_paths=_EXCLUDED_PATHS + _TESTRUNNER_PATHS))
1008   results.extend(_CheckAuthorizedAuthor(input_api, output_api))
1009   results.extend(
1010       _CheckNoProductionCodeUsingTestOnlyFunctions(input_api, output_api))
1011   results.extend(_CheckNoIOStreamInHeaders(input_api, output_api))
1012   results.extend(_CheckNoUNIT_TESTInSourceFiles(input_api, output_api))
1013   results.extend(_CheckNoNewWStrings(input_api, output_api))
1014   results.extend(_CheckNoDEPSGIT(input_api, output_api))
1015   results.extend(_CheckNoBannedFunctions(input_api, output_api))
1016   results.extend(_CheckNoPragmaOnce(input_api, output_api))
1017   results.extend(_CheckNoTrinaryTrueFalse(input_api, output_api))
1018   results.extend(_CheckUnwantedDependencies(input_api, output_api))
1019   results.extend(_CheckFilePermissions(input_api, output_api))
1020   results.extend(_CheckNoAuraWindowPropertyHInHeaders(input_api, output_api))
1021   results.extend(_CheckIncludeOrder(input_api, output_api))
1022   results.extend(_CheckForVersionControlConflicts(input_api, output_api))
1023   results.extend(_CheckPatchFiles(input_api, output_api))
1024   results.extend(_CheckHardcodedGoogleHostsInLowerLayers(input_api, output_api))
1025   results.extend(_CheckNoAbbreviationInPngFileName(input_api, output_api))
1026   results.extend(_CheckForInvalidOSMacros(input_api, output_api))
1027   results.extend(_CheckAddedDepsHaveTargetApprovals(input_api, output_api))
1028   results.extend(
1029       input_api.canned_checks.CheckChangeHasNoTabs(
1030           input_api,
1031           output_api,
1032           source_file_filter=lambda x: x.LocalPath().endswith('.grd')))
1033   results.extend(_CheckSpamLogging(input_api, output_api))
1034   results.extend(_CheckForAnonymousVariables(input_api, output_api))
1035   results.extend(_CheckCygwinShell(input_api, output_api))
1036   results.extend(_CheckJavaStyle(input_api, output_api))
1037
1038   if any('PRESUBMIT.py' == f.LocalPath() for f in input_api.AffectedFiles()):
1039     results.extend(input_api.canned_checks.RunUnitTestsInDirectory(
1040         input_api, output_api,
1041         input_api.PresubmitLocalPath(),
1042         whitelist=[r'^PRESUBMIT_test\.py$']))
1043   return results
1044
1045
1046 def _CheckSubversionConfig(input_api, output_api):
1047   """Verifies the subversion config file is correctly setup.
1048
1049   Checks that autoprops are enabled, returns an error otherwise.
1050   """
1051   join = input_api.os_path.join
1052   if input_api.platform == 'win32':
1053     appdata = input_api.environ.get('APPDATA', '')
1054     if not appdata:
1055       return [output_api.PresubmitError('%APPDATA% is not configured.')]
1056     path = join(appdata, 'Subversion', 'config')
1057   else:
1058     home = input_api.environ.get('HOME', '')
1059     if not home:
1060       return [output_api.PresubmitError('$HOME is not configured.')]
1061     path = join(home, '.subversion', 'config')
1062
1063   error_msg = (
1064       'Please look at http://dev.chromium.org/developers/coding-style to\n'
1065       'configure your subversion configuration file. This enables automatic\n'
1066       'properties to simplify the project maintenance.\n'
1067       'Pro-tip: just download and install\n'
1068       'http://src.chromium.org/viewvc/chrome/trunk/tools/build/slave/config\n')
1069
1070   try:
1071     lines = open(path, 'r').read().splitlines()
1072     # Make sure auto-props is enabled and check for 2 Chromium standard
1073     # auto-prop.
1074     if (not '*.cc = svn:eol-style=LF' in lines or
1075         not '*.pdf = svn:mime-type=application/pdf' in lines or
1076         not 'enable-auto-props = yes' in lines):
1077       return [
1078           output_api.PresubmitNotifyResult(
1079               'It looks like you have not configured your subversion config '
1080               'file or it is not up-to-date.\n' + error_msg)
1081       ]
1082   except (OSError, IOError):
1083     return [
1084         output_api.PresubmitNotifyResult(
1085             'Can\'t find your subversion config file.\n' + error_msg)
1086     ]
1087   return []
1088
1089
1090 def _CheckAuthorizedAuthor(input_api, output_api):
1091   """For non-googler/chromites committers, verify the author's email address is
1092   in AUTHORS.
1093   """
1094   # TODO(maruel): Add it to input_api?
1095   import fnmatch
1096
1097   author = input_api.change.author_email
1098   if not author:
1099     input_api.logging.info('No author, skipping AUTHOR check')
1100     return []
1101   authors_path = input_api.os_path.join(
1102       input_api.PresubmitLocalPath(), 'AUTHORS')
1103   valid_authors = (
1104       input_api.re.match(r'[^#]+\s+\<(.+?)\>\s*$', line)
1105       for line in open(authors_path))
1106   valid_authors = [item.group(1).lower() for item in valid_authors if item]
1107   if not any(fnmatch.fnmatch(author.lower(), valid) for valid in valid_authors):
1108     input_api.logging.info('Valid authors are %s', ', '.join(valid_authors))
1109     return [output_api.PresubmitPromptWarning(
1110         ('%s is not in AUTHORS file. If you are a new contributor, please visit'
1111         '\n'
1112         'http://www.chromium.org/developers/contributing-code and read the '
1113         '"Legal" section\n'
1114         'If you are a chromite, verify the contributor signed the CLA.') %
1115         author)]
1116   return []
1117
1118
1119 def _CheckPatchFiles(input_api, output_api):
1120   problems = [f.LocalPath() for f in input_api.AffectedFiles()
1121       if f.LocalPath().endswith(('.orig', '.rej'))]
1122   if problems:
1123     return [output_api.PresubmitError(
1124         "Don't commit .rej and .orig files.", problems)]
1125   else:
1126     return []
1127
1128
1129 def _DidYouMeanOSMacro(bad_macro):
1130   try:
1131     return {'A': 'OS_ANDROID',
1132             'B': 'OS_BSD',
1133             'C': 'OS_CHROMEOS',
1134             'F': 'OS_FREEBSD',
1135             'L': 'OS_LINUX',
1136             'M': 'OS_MACOSX',
1137             'N': 'OS_NACL',
1138             'O': 'OS_OPENBSD',
1139             'P': 'OS_POSIX',
1140             'S': 'OS_SOLARIS',
1141             'W': 'OS_WIN'}[bad_macro[3].upper()]
1142   except KeyError:
1143     return ''
1144
1145
1146 def _CheckForInvalidOSMacrosInFile(input_api, f):
1147   """Check for sensible looking, totally invalid OS macros."""
1148   preprocessor_statement = input_api.re.compile(r'^\s*#')
1149   os_macro = input_api.re.compile(r'defined\((OS_[^)]+)\)')
1150   results = []
1151   for lnum, line in f.ChangedContents():
1152     if preprocessor_statement.search(line):
1153       for match in os_macro.finditer(line):
1154         if not match.group(1) in _VALID_OS_MACROS:
1155           good = _DidYouMeanOSMacro(match.group(1))
1156           did_you_mean = ' (did you mean %s?)' % good if good else ''
1157           results.append('    %s:%d %s%s' % (f.LocalPath(),
1158                                              lnum,
1159                                              match.group(1),
1160                                              did_you_mean))
1161   return results
1162
1163
1164 def _CheckForInvalidOSMacros(input_api, output_api):
1165   """Check all affected files for invalid OS macros."""
1166   bad_macros = []
1167   for f in input_api.AffectedFiles():
1168     if not f.LocalPath().endswith(('.py', '.js', '.html', '.css')):
1169       bad_macros.extend(_CheckForInvalidOSMacrosInFile(input_api, f))
1170
1171   if not bad_macros:
1172     return []
1173
1174   return [output_api.PresubmitError(
1175       'Possibly invalid OS macro[s] found. Please fix your code\n'
1176       'or add your macro to src/PRESUBMIT.py.', bad_macros)]
1177
1178
1179 def CheckChangeOnUpload(input_api, output_api):
1180   results = []
1181   results.extend(_CommonChecks(input_api, output_api))
1182   return results
1183
1184
1185 def GetDefaultTryConfigs(bots=None):
1186   """Returns a list of ('bot', set(['tests']), optionally filtered by [bots].
1187
1188   To add tests to this list, they MUST be in the the corresponding master's
1189   gatekeeper config. For example, anything on master.chromium would be closed by
1190   tools/build/masters/master.chromium/master_gatekeeper_cfg.py.
1191
1192   If 'bots' is specified, will only return configurations for bots in that list.
1193   """
1194
1195   standard_tests = [
1196       'base_unittests',
1197       'browser_tests',
1198       'cacheinvalidation_unittests',
1199       'check_deps',
1200       'check_deps2git',
1201       'content_browsertests',
1202       'content_unittests',
1203       'crypto_unittests',
1204       #'gfx_unittests',
1205       'gpu_unittests',
1206       'interactive_ui_tests',
1207       'ipc_tests',
1208       'jingle_unittests',
1209       'media_unittests',
1210       'net_unittests',
1211       'ppapi_unittests',
1212       'printing_unittests',
1213       'sql_unittests',
1214       'sync_unit_tests',
1215       'unit_tests',
1216       # Broken in release.
1217       #'url_unittests',
1218       #'webkit_unit_tests',
1219   ]
1220
1221   linux_aura_tests = [
1222       'app_list_unittests',
1223       'aura_unittests',
1224       'browser_tests',
1225       'compositor_unittests',
1226       'content_browsertests',
1227       'content_unittests',
1228       'events_unittests',
1229       'interactive_ui_tests',
1230       'unit_tests',
1231   ]
1232   builders_and_tests = {
1233       # TODO(maruel): Figure out a way to run 'sizes' where people can
1234       # effectively update the perf expectation correctly.  This requires a
1235       # clobber=True build running 'sizes'. 'sizes' is not accurate with
1236       # incremental build. Reference:
1237       # http://chromium.org/developers/tree-sheriffs/perf-sheriffs.
1238       # TODO(maruel): An option would be to run 'sizes' but not count a failure
1239       # of this step as a try job failure.
1240       'android_aosp': ['compile'],
1241       'android_clang_dbg': ['slave_steps'],
1242       'android_dbg': ['slave_steps'],
1243       'cros_x86': ['defaulttests'],
1244       'ios_dbg_simulator': [
1245           'compile',
1246           'base_unittests',
1247           'content_unittests',
1248           'crypto_unittests',
1249           'url_unittests',
1250           'net_unittests',
1251           'sql_unittests',
1252           'ui_unittests',
1253       ],
1254       'ios_rel_device': ['compile'],
1255       'linux_asan': ['defaulttests'],
1256       #TODO(stip): Change the name of this builder to reflect that it's release.
1257       'linux_aura': linux_aura_tests,
1258       'linux_chromeos_asan': ['defaulttests'],
1259       'linux_chromeos_clang': ['compile'],
1260       # Note: It is a Release builder even if its name convey otherwise.
1261       'linux_chromeos': standard_tests + [
1262           'app_list_unittests',
1263           'aura_unittests',
1264           'ash_unittests',
1265           'chromeos_unittests',
1266           'components_unittests',
1267           'dbus_unittests',
1268           'device_unittests',
1269           'events_unittests',
1270           'google_apis_unittests',
1271           'sandbox_linux_unittests',
1272       ],
1273       'linux_clang': ['compile'],
1274       'linux_rel': standard_tests + [
1275           'cc_unittests',
1276           'chromedriver_unittests',
1277           'components_unittests',
1278           'google_apis_unittests',
1279           'nacl_integration',
1280           'remoting_unittests',
1281           'sandbox_linux_unittests',
1282           'sync_integration_tests',
1283       ],
1284       'mac': ['compile'],
1285       'mac_rel': standard_tests + [
1286           'app_list_unittests',
1287           'cc_unittests',
1288           'chromedriver_unittests',
1289           'components_unittests',
1290           'google_apis_unittests',
1291           'message_center_unittests',
1292           'nacl_integration',
1293           'remoting_unittests',
1294           'sync_integration_tests',
1295           'telemetry_unittests',
1296       ],
1297       'win': ['compile'],
1298       'win_rel': standard_tests + [
1299           'app_list_unittests',
1300           'ash_unittests',
1301           'aura_unittests',
1302           'cc_unittests',
1303           'chrome_elf_unittests',
1304           'chromedriver_unittests',
1305           'components_unittests',
1306           'compositor_unittests',
1307           'events_unittests',
1308           'google_apis_unittests',
1309           'installer_util_unittests',
1310           'mini_installer_test',
1311           'nacl_integration',
1312           'remoting_unittests',
1313           'sync_integration_tests',
1314           'telemetry_unittests',
1315           'views_unittests',
1316       ],
1317       'win_x64_rel': [
1318           'base_unittests',
1319       ],
1320   }
1321
1322   swarm_enabled_builders = (
1323       'linux_rel',
1324       'mac_rel',
1325       'win_rel',
1326   )
1327
1328   swarm_enabled_tests = (
1329       'base_unittests',
1330       'browser_tests',
1331       'interactive_ui_tests',
1332       'net_unittests',
1333       'unit_tests',
1334   )
1335
1336   for bot in builders_and_tests:
1337     if bot in swarm_enabled_builders:
1338       builders_and_tests[bot] = [x + '_swarm' if x in swarm_enabled_tests else x
1339                                  for x in builders_and_tests[bot]]
1340
1341   if bots:
1342     return [(bot, set(builders_and_tests[bot])) for bot in bots]
1343   else:
1344     return [(bot, set(tests)) for bot, tests in builders_and_tests.iteritems()]
1345
1346
1347 def CheckChangeOnCommit(input_api, output_api):
1348   results = []
1349   results.extend(_CommonChecks(input_api, output_api))
1350   # TODO(thestig) temporarily disabled, doesn't work in third_party/
1351   #results.extend(input_api.canned_checks.CheckSvnModifiedDirectories(
1352   #    input_api, output_api, sources))
1353   # Make sure the tree is 'open'.
1354   results.extend(input_api.canned_checks.CheckTreeIsOpen(
1355       input_api,
1356       output_api,
1357       json_url='http://chromium-status.appspot.com/current?format=json'))
1358   results.extend(input_api.canned_checks.CheckRietveldTryJobExecution(input_api,
1359       output_api, 'http://codereview.chromium.org',
1360       ('win_rel', 'linux_rel', 'mac_rel, win:compile'),
1361       'tryserver@chromium.org'))
1362
1363   results.extend(input_api.canned_checks.CheckChangeHasBugField(
1364       input_api, output_api))
1365   results.extend(input_api.canned_checks.CheckChangeHasDescription(
1366       input_api, output_api))
1367   results.extend(_CheckSubversionConfig(input_api, output_api))
1368   return results
1369
1370
1371 def GetPreferredTrySlaves(project, change):
1372   files = change.LocalPaths()
1373
1374   if not files or all(re.search(r'[\\/]OWNERS$', f) for f in files):
1375     return []
1376
1377   if all(re.search('\.(m|mm)$|(^|[/_])mac[/_.]', f) for f in files):
1378     return GetDefaultTryConfigs(['mac', 'mac_rel'])
1379   if all(re.search('(^|[/_])win[/_.]', f) for f in files):
1380     return GetDefaultTryConfigs(['win', 'win_rel'])
1381   if all(re.search('(^|[/_])android[/_.]', f) for f in files):
1382     return GetDefaultTryConfigs([
1383         'android_aosp',
1384         'android_clang_dbg',
1385         'android_dbg',
1386     ])
1387   if all(re.search('^native_client_sdk', f) for f in files):
1388     return GetDefaultTryConfigs([
1389         'linux_nacl_sdk',
1390         'mac_nacl_sdk',
1391         'win_nacl_sdk',
1392     ])
1393   if all(re.search('[/_]ios[/_.]', f) for f in files):
1394     return GetDefaultTryConfigs(['ios_rel_device', 'ios_dbg_simulator'])
1395
1396   trybots = GetDefaultTryConfigs([
1397       'android_clang_dbg',
1398       'android_dbg',
1399       'ios_dbg_simulator',
1400       'ios_rel_device',
1401       'linux_aura',
1402       'linux_asan',
1403       'linux_chromeos',
1404       'linux_clang',
1405       'linux_rel',
1406       'mac',
1407       'mac_rel',
1408       'win',
1409       'win_rel',
1410       'win_x64_rel',
1411   ])
1412
1413   # Match things like path/aura/file.cc and path/file_aura.cc.
1414   # Same for chromeos.
1415   if any(re.search('[/_](aura|chromeos)', f) for f in files):
1416     trybots.extend(GetDefaultTryConfigs([
1417         'linux_chromeos_asan', 'linux_chromeos_clang']))
1418
1419   # If there are gyp changes to base, build, or chromeos, run a full cros build
1420   # in addition to the shorter linux_chromeos build. Changes to high level gyp
1421   # files have a much higher chance of breaking the cros build, which is
1422   # differnt from the linux_chromeos build that most chrome developers test
1423   # with.
1424   if any(re.search('^(base|build|chromeos).*\.gypi?$', f) for f in files):
1425     trybots.extend(GetDefaultTryConfigs(['cros_x86']))
1426
1427   # The AOSP bot doesn't build the chrome/ layer, so ignore any changes to it
1428   # unless they're .gyp(i) files as changes to those files can break the gyp
1429   # step on that bot.
1430   if (not all(re.search('^chrome', f) for f in files) or
1431       any(re.search('\.gypi?$', f) for f in files)):
1432     trybots.extend(GetDefaultTryConfigs(['android_aosp']))
1433
1434   return trybots