# 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 Chromium. See https://www.chromium.org/developers/how-tos/depottools/presubmit-scripts/ for more details about the presubmit API built into depot_tools. """ from typing import Callable from typing import Optional from typing import Sequence from dataclasses import dataclass PRESUBMIT_VERSION = '2.0.0' # This line is 'magic' in that git-cl looks for it to decide whether to # use Python3 instead of Python2 when running the code in this file. USE_PYTHON3 = True _EXCLUDED_PATHS = ( # Generated file (r"chrome[\\/]android[\\/]webapk[\\/]shell_apk[\\/]src[\\/]org[\\/]chromium" r"[\\/]webapk[\\/]lib[\\/]runtime_library[\\/]IWebApkApi.java"), # File needs to write to stdout to emulate a tool it's replacing. r"chrome[\\/]updater[\\/]mac[\\/]keystone[\\/]ksadmin.mm", # Generated file. (r"^components[\\/]variations[\\/]proto[\\/]devtools[\\/]" r"client_variations.js"), # These are video files, not typescript. r"^media[\\/]test[\\/]data[\\/].*.ts", r"^native_client_sdksrc[\\/]build_tools[\\/]make_rules.py", r"^native_client_sdk[\\/]src[\\/]build_tools[\\/]make_simple.py", r"^native_client_sdk[\\/]src[\\/]tools[\\/].*.mk", r"^net[\\/]tools[\\/]spdyshark[\\/].*", r"^skia[\\/].*", r"^third_party[\\/]blink[\\/].*", r"^third_party[\\/]breakpad[\\/].*", # sqlite is an imported third party dependency. r"^third_party[\\/]sqlite[\\/].*", r"^v8[\\/].*", r".*MakeFile$", r".+_autogen\.h$", r".+_pb2\.py$", r".+[\\/]pnacl_shim\.c$", r"^gpu[\\/]config[\\/].*_list_json\.cc$", r"tools[\\/]md_browser[\\/].*\.css$", # Test pages for Maps telemetry tests. r"tools[\\/]perf[\\/]page_sets[\\/]maps_perf_test.*", # Test pages for WebRTC telemetry tests. r"tools[\\/]perf[\\/]page_sets[\\/]webrtc_cases.*", ) _EXCLUDED_SET_NO_PARENT_PATHS = ( # It's for historical reasons that blink isn't a top level directory, where # it would be allowed to have "set noparent" to avoid top level owners # accidentally +1ing changes. 'third_party/blink/OWNERS', ) # Fragment of a regular expression that matches C++ and Objective-C++ # implementation files. _IMPLEMENTATION_EXTENSIONS = r'\.(cc|cpp|cxx|mm)$' # Fragment of a regular expression that matches C++ and Objective-C++ # header files. _HEADER_EXTENSIONS = r'\.(h|hpp|hxx)$' # Paths with sources that don't use //base. _NON_BASE_DEPENDENT_PATHS = ( r"^chrome[\\/]browser[\\/]browser_switcher[\\/]bho[\\/]", r"^tools[\\/]win[\\/]", ) # Regular expression that matches code only used for test binaries # (best effort). _TEST_CODE_EXCLUDED_PATHS = ( r'.*[\\/](fake_|test_|mock_).+%s' % _IMPLEMENTATION_EXTENSIONS, r'.+_test_(base|support|util)%s' % _IMPLEMENTATION_EXTENSIONS, # Test suite files, like: # foo_browsertest.cc # bar_unittest_mac.cc (suffix) # baz_unittests.cc (plural) r'.+_(api|browser|eg|int|perf|pixel|unit|ui)?test(s)?(_[a-z]+)?%s' % _IMPLEMENTATION_EXTENSIONS, r'.+_(fuzz|fuzzer)(_[a-z]+)?%s' % _IMPLEMENTATION_EXTENSIONS, r'.+sync_service_impl_harness%s' % _IMPLEMENTATION_EXTENSIONS, r'.*[\\/](test|tool(s)?)[\\/].*', # content_shell is used for running content_browsertests. r'content[\\/]shell[\\/].*', # Web test harness. r'content[\\/]web_test[\\/].*', # Non-production example code. r'mojo[\\/]examples[\\/].*', # Launcher for running iOS tests on the simulator. r'testing[\\/]iossim[\\/]iossim\.mm$', # EarlGrey app side code for tests. r'ios[\\/].*_app_interface\.mm$', # Views Examples code r'ui[\\/]views[\\/]examples[\\/].*', # Chromium Codelab r'codelabs[\\/]*' ) _THIRD_PARTY_EXCEPT_BLINK = 'third_party/(?!blink/)' _TEST_ONLY_WARNING = ( 'You might be calling functions intended only for testing from\n' 'production code. If you are doing this from inside another method\n' 'named as *ForTesting(), then consider exposing things to have tests\n' 'make that same call directly.\n' 'If that is not possible, you may put a comment on the same line with\n' ' // IN-TEST \n' 'to tell the PRESUBMIT script that the code is inside a *ForTesting()\n' 'method and can be ignored. Do not do this inside production code.\n' 'The android-binary-size trybot will block if the method exists in the\n' 'release apk.') @dataclass class BanRule: # String pattern. If the pattern begins with a slash, the pattern will be # treated as a regular expression instead. pattern: str # Explanation as a sequence of strings. Each string in the sequence will be # printed on its own line. explanation: Sequence[str] # Whether or not to treat this ban as a fatal error. If unspecified, # defaults to true. treat_as_error: Optional[bool] = None # Paths that should be excluded from the ban check. Each string is a regular # expression that will be matched against the path of the file being checked # relative to the root of the source tree. excluded_paths: Optional[Sequence[str]] = None _BANNED_JAVA_IMPORTS : Sequence[BanRule] = ( BanRule( 'import java.net.URI;', ( 'Use org.chromium.url.GURL instead of java.net.URI, where possible.', ), excluded_paths=( (r'net/android/javatests/src/org/chromium/net/' 'AndroidProxySelectorTest\.java'), r'components/cronet/', r'third_party/robolectric/local/', ), ), BanRule( 'import android.annotation.TargetApi;', ( 'Do not use TargetApi, use @androidx.annotation.RequiresApi instead. ' 'RequiresApi ensures that any calls are guarded by the appropriate ' 'SDK_INT check. See https://crbug.com/1116486.', ), ), BanRule( 'import android.support.test.rule.UiThreadTestRule;', ( 'Do not use UiThreadTestRule, just use ' '@org.chromium.base.test.UiThreadTest on test methods that should run ' 'on the UI thread. See https://crbug.com/1111893.', ), ), BanRule( 'import android.support.test.annotation.UiThreadTest;', ('Do not use android.support.test.annotation.UiThreadTest, use ' 'org.chromium.base.test.UiThreadTest instead. See ' 'https://crbug.com/1111893.', ), ), BanRule( 'import android.support.test.rule.ActivityTestRule;', ( 'Do not use ActivityTestRule, use ' 'org.chromium.base.test.BaseActivityTestRule instead.', ), excluded_paths=( 'components/cronet/', ), ), ) _BANNED_JAVA_FUNCTIONS : Sequence[BanRule] = ( BanRule( 'StrictMode.allowThreadDiskReads()', ( 'Prefer using StrictModeContext.allowDiskReads() to using StrictMode ' 'directly.', ), False, ), BanRule( 'StrictMode.allowThreadDiskWrites()', ( 'Prefer using StrictModeContext.allowDiskWrites() to using StrictMode ' 'directly.', ), False, ), BanRule( '.waitForIdleSync()', ( 'Do not use waitForIdleSync as it masks underlying issues. There is ' 'almost always something else you should wait on instead.', ), False, ), ) _BANNED_OBJC_FUNCTIONS : Sequence[BanRule] = ( BanRule( 'addTrackingRect:', ( 'The use of -[NSView addTrackingRect:owner:userData:assumeInside:] is' 'prohibited. Please use CrTrackingArea instead.', 'http://dev.chromium.org/developers/coding-style/cocoa-dos-and-donts', ), False, ), BanRule( r'/NSTrackingArea\W', ( 'The use of NSTrackingAreas is prohibited. Please use CrTrackingArea', 'instead.', 'http://dev.chromium.org/developers/coding-style/cocoa-dos-and-donts', ), False, ), BanRule( 'convertPointFromBase:', ( 'The use of -[NSView convertPointFromBase:] is almost certainly wrong.', 'Please use |convertPoint:(point) fromView:nil| instead.', 'http://dev.chromium.org/developers/coding-style/cocoa-dos-and-donts', ), True, ), BanRule( 'convertPointToBase:', ( 'The use of -[NSView convertPointToBase:] is almost certainly wrong.', 'Please use |convertPoint:(point) toView:nil| instead.', 'http://dev.chromium.org/developers/coding-style/cocoa-dos-and-donts', ), True, ), BanRule( 'convertRectFromBase:', ( 'The use of -[NSView convertRectFromBase:] is almost certainly wrong.', 'Please use |convertRect:(point) fromView:nil| instead.', 'http://dev.chromium.org/developers/coding-style/cocoa-dos-and-donts', ), True, ), BanRule( 'convertRectToBase:', ( 'The use of -[NSView convertRectToBase:] is almost certainly wrong.', 'Please use |convertRect:(point) toView:nil| instead.', 'http://dev.chromium.org/developers/coding-style/cocoa-dos-and-donts', ), True, ), BanRule( 'convertSizeFromBase:', ( 'The use of -[NSView convertSizeFromBase:] is almost certainly wrong.', 'Please use |convertSize:(point) fromView:nil| instead.', 'http://dev.chromium.org/developers/coding-style/cocoa-dos-and-donts', ), True, ), BanRule( 'convertSizeToBase:', ( 'The use of -[NSView convertSizeToBase:] is almost certainly wrong.', 'Please use |convertSize:(point) toView:nil| instead.', 'http://dev.chromium.org/developers/coding-style/cocoa-dos-and-donts', ), True, ), BanRule( r"/\s+UTF8String\s*]", ( 'The use of -[NSString UTF8String] is dangerous as it can return null', 'even if |canBeConvertedToEncoding:NSUTF8StringEncoding| returns YES.', 'Please use |SysNSStringToUTF8| instead.', ), True, ), BanRule( r'__unsafe_unretained', ( 'The use of __unsafe_unretained is almost certainly wrong, unless', 'when interacting with NSFastEnumeration or NSInvocation.', 'Please use __weak in files build with ARC, nothing otherwise.', ), False, ), BanRule( 'freeWhenDone:NO', ( 'The use of "freeWhenDone:NO" with the NoCopy creation of ', 'Foundation types is prohibited.', ), True, ), ) _BANNED_IOS_OBJC_FUNCTIONS = ( BanRule( r'/\bTEST[(]', ( 'TEST() macro should not be used in Objective-C++ code as it does not ', 'drain the autorelease pool at the end of the test. Use TEST_F() ', 'macro instead with a fixture inheriting from PlatformTest (or a ', 'typedef).' ), True, ), BanRule( r'/\btesting::Test\b', ( 'testing::Test should not be used in Objective-C++ code as it does ', 'not drain the autorelease pool at the end of the test. Use ', 'PlatformTest instead.' ), True, ), BanRule( ' systemImageNamed:', ( '+[UIImage systemImageNamed:] should not be used to create symbols.', 'Instead use a wrapper defined in:', 'ios/chrome/browser/ui/icons/chrome_symbol.h' ), True, excluded_paths=( 'ios/chrome/browser/ui/icons/chrome_symbol.mm', ), ), ) _BANNED_IOS_EGTEST_FUNCTIONS : Sequence[BanRule] = ( BanRule( r'/\bEXPECT_OCMOCK_VERIFY\b', ( 'EXPECT_OCMOCK_VERIFY should not be used in EarlGrey tests because ', 'it is meant for GTests. Use [mock verify] instead.' ), True, ), ) _BANNED_CPP_FUNCTIONS : Sequence[BanRule] = ( BanRule( r'/\busing namespace ', ( 'Using directives ("using namespace x") are banned by the Google Style', 'Guide ( http://google.github.io/styleguide/cppguide.html#Namespaces ).', 'Explicitly qualify symbols or use using declarations ("using x::foo").', ), True, [_THIRD_PARTY_EXCEPT_BLINK], # Don't warn in third_party folders. ), # Make sure that gtest's FRIEND_TEST() macro is not used; the # FRIEND_TEST_ALL_PREFIXES() macro from base/gtest_prod_util.h should be # used instead since that allows for FLAKY_ and DISABLED_ prefixes. BanRule( 'FRIEND_TEST(', ( 'Chromium code should not use gtest\'s FRIEND_TEST() macro. Include', 'base/gtest_prod_util.h and use FRIEND_TEST_ALL_PREFIXES() instead.', ), False, (), ), BanRule( 'setMatrixClip', ( 'Overriding setMatrixClip() is prohibited; ', 'the base function is deprecated. ', ), True, (), ), BanRule( 'SkRefPtr', ( 'The use of SkRefPtr is prohibited. ', 'Please use sk_sp<> instead.' ), True, (), ), BanRule( 'SkAutoRef', ( 'The indirect use of SkRefPtr via SkAutoRef is prohibited. ', 'Please use sk_sp<> instead.' ), True, (), ), BanRule( 'SkAutoTUnref', ( 'The use of SkAutoTUnref is dangerous because it implicitly ', 'converts to a raw pointer. Please use sk_sp<> instead.' ), True, (), ), BanRule( 'SkAutoUnref', ( 'The indirect use of SkAutoTUnref through SkAutoUnref is dangerous ', 'because it implicitly converts to a raw pointer. ', 'Please use sk_sp<> instead.' ), True, (), ), BanRule( r'/HANDLE_EINTR\(.*close', ( 'HANDLE_EINTR(close) is invalid. If close fails with EINTR, the file', 'descriptor will be closed, and it is incorrect to retry the close.', 'Either call close directly and ignore its return value, or wrap close', 'in IGNORE_EINTR to use its return value. See http://crbug.com/269623' ), True, (), ), BanRule( r'/IGNORE_EINTR\((?!.*close)', ( 'IGNORE_EINTR is only valid when wrapping close. To wrap other system', 'calls, use HANDLE_EINTR. See http://crbug.com/269623', ), True, ( # Files that #define IGNORE_EINTR. r'^base[\\/]posix[\\/]eintr_wrapper\.h$', r'^ppapi[\\/]tests[\\/]test_broker\.cc$', ), ), BanRule( r'/v8::Extension\(', ( 'Do not introduce new v8::Extensions into the code base, use', 'gin::Wrappable instead. See http://crbug.com/334679', ), True, ( r'extensions[\\/]renderer[\\/]safe_builtins\.*', ), ), BanRule( '#pragma comment(lib,', ( 'Specify libraries to link with in build files and not in the source.', ), True, ( r'^base[\\/]third_party[\\/]symbolize[\\/].*', r'^third_party[\\/]abseil-cpp[\\/].*', ), ), BanRule( r'/base::SequenceChecker\b', ( 'Consider using SEQUENCE_CHECKER macros instead of the class directly.', ), False, (), ), BanRule( r'/base::ThreadChecker\b', ( 'Consider using THREAD_CHECKER macros instead of the class directly.', ), False, (), ), BanRule( r'/(Time(|Delta|Ticks)|ThreadTicks)::FromInternalValue|ToInternalValue', ( 'base::TimeXXX::FromInternalValue() and ToInternalValue() are', 'deprecated (http://crbug.com/634507). Please avoid converting away', 'from the Time types in Chromium code, especially if any math is', 'being done on time values. For interfacing with platform/library', 'APIs, use FromMicroseconds() or InMicroseconds(), or one of the other', 'type converter methods instead. For faking TimeXXX values (for unit', 'testing only), use TimeXXX() + Microseconds(N). For', 'other use cases, please contact base/time/OWNERS.', ), False, (), ), BanRule( 'CallJavascriptFunctionUnsafe', ( "Don't use CallJavascriptFunctionUnsafe() in new code. Instead, use", 'AllowJavascript(), OnJavascriptAllowed()/OnJavascriptDisallowed(),', 'and CallJavascriptFunction(). See https://goo.gl/qivavq.', ), False, ( r'^content[\\/]browser[\\/]webui[\\/]web_ui_impl\.(cc|h)$', r'^content[\\/]public[\\/]browser[\\/]web_ui\.h$', r'^content[\\/]public[\\/]test[\\/]test_web_ui\.(cc|h)$', ), ), BanRule( 'leveldb::DB::Open', ( 'Instead of leveldb::DB::Open() use leveldb_env::OpenDB() from', 'third_party/leveldatabase/env_chromium.h. It exposes databases to', "Chrome's tracing, making their memory usage visible.", ), True, ( r'^third_party/leveldatabase/.*\.(cc|h)$', ), ), BanRule( 'leveldb::NewMemEnv', ( 'Instead of leveldb::NewMemEnv() use leveldb_chrome::NewMemEnv() from', 'third_party/leveldatabase/leveldb_chrome.h. It exposes environments', "to Chrome's tracing, making their memory usage visible.", ), True, ( r'^third_party/leveldatabase/.*\.(cc|h)$', ), ), BanRule( 'RunLoop::QuitCurrent', ( 'Please migrate away from RunLoop::QuitCurrent*() methods. Use member', 'methods of a specific RunLoop instance instead.', ), False, (), ), BanRule( 'base::ScopedMockTimeMessageLoopTaskRunner', ( 'ScopedMockTimeMessageLoopTaskRunner is deprecated. Prefer', 'TaskEnvironment::TimeSource::MOCK_TIME. There are still a', 'few cases that may require a ScopedMockTimeMessageLoopTaskRunner', '(i.e. mocking the main MessageLoopForUI in browser_tests), but check', 'with gab@ first if you think you need it)', ), False, (), ), BanRule( 'std::regex', ( 'Using std::regex adds unnecessary binary size to Chrome. Please use', 're2::RE2 instead (crbug.com/755321)', ), True, # Abseil's benchmarks never linked into chrome. ['third_party/abseil-cpp/.*_benchmark.cc'], ), BanRule( r'/\bstd::stoi\b', ( 'std::stoi uses exceptions to communicate results. ', 'Use base::StringToInt() instead.', ), True, [_THIRD_PARTY_EXCEPT_BLINK], # Don't warn in third_party folders. ), BanRule( r'/\bstd::stol\b', ( 'std::stol uses exceptions to communicate results. ', 'Use base::StringToInt() instead.', ), True, [_THIRD_PARTY_EXCEPT_BLINK], # Don't warn in third_party folders. ), BanRule( r'/\bstd::stoul\b', ( 'std::stoul uses exceptions to communicate results. ', 'Use base::StringToUint() instead.', ), True, [_THIRD_PARTY_EXCEPT_BLINK], # Don't warn in third_party folders. ), BanRule( r'/\bstd::stoll\b', ( 'std::stoll uses exceptions to communicate results. ', 'Use base::StringToInt64() instead.', ), True, [_THIRD_PARTY_EXCEPT_BLINK], # Don't warn in third_party folders. ), BanRule( r'/\bstd::stoull\b', ( 'std::stoull uses exceptions to communicate results. ', 'Use base::StringToUint64() instead.', ), True, [_THIRD_PARTY_EXCEPT_BLINK], # Don't warn in third_party folders. ), BanRule( r'/\bstd::stof\b', ( 'std::stof uses exceptions to communicate results. ', 'For locale-independent values, e.g. reading numbers from disk', 'profiles, use base::StringToDouble().', 'For user-visible values, parse using ICU.', ), True, [_THIRD_PARTY_EXCEPT_BLINK], # Don't warn in third_party folders. ), BanRule( r'/\bstd::stod\b', ( 'std::stod uses exceptions to communicate results. ', 'For locale-independent values, e.g. reading numbers from disk', 'profiles, use base::StringToDouble().', 'For user-visible values, parse using ICU.', ), True, [_THIRD_PARTY_EXCEPT_BLINK], # Don't warn in third_party folders. ), BanRule( r'/\bstd::stold\b', ( 'std::stold uses exceptions to communicate results. ', 'For locale-independent values, e.g. reading numbers from disk', 'profiles, use base::StringToDouble().', 'For user-visible values, parse using ICU.', ), True, [_THIRD_PARTY_EXCEPT_BLINK], # Don't warn in third_party folders. ), BanRule( r'/\bstd::to_string\b', ( 'std::to_string is locale dependent and slower than alternatives.', 'For locale-independent strings, e.g. writing numbers to disk', 'profiles, use base::NumberToString().', 'For user-visible strings, use base::FormatNumber() and', 'the related functions in base/i18n/number_formatting.h.', ), False, # Only a warning since it is already used. [_THIRD_PARTY_EXCEPT_BLINK], # Don't warn in third_party folders. ), BanRule( r'/\bstd::shared_ptr\b', ( 'std::shared_ptr should not be used. Use scoped_refptr instead.', ), True, [ # Needed for interop with third-party library. '^third_party/blink/renderer/core/typed_arrays/array_buffer/' + 'array_buffer_contents\.(cc|h)', '^third_party/blink/renderer/bindings/core/v8/' + 'v8_wasm_response_extensions.cc', '^gin/array_buffer\.(cc|h)', '^chrome/services/sharing/nearby/', # gRPC provides some C++ libraries that use std::shared_ptr<>. '^chromeos/services/libassistant/grpc/', '^chromecast/cast_core/grpc', '^chromecast/cast_core/runtime/browser', # Fuchsia provides C++ libraries that use std::shared_ptr<>. '^base/fuchsia/filtered_service_directory\.(cc|h)', '^base/fuchsia/service_directory_test_base\.h', '.*fuchsia.*test\.(cc|h)', # Needed for clang plugin tests '^tools/clang/plugins/tests/', _THIRD_PARTY_EXCEPT_BLINK], # Not an error in third_party folders. ), BanRule( r'/\bstd::weak_ptr\b', ( 'std::weak_ptr should not be used. Use base::WeakPtr instead.', ), True, [_THIRD_PARTY_EXCEPT_BLINK], # Not an error in third_party folders. ), BanRule( r'/\blong long\b', ( 'long long is banned. Use stdint.h if you need a 64 bit number.', ), False, # Only a warning since it is already used. [_THIRD_PARTY_EXCEPT_BLINK], # Don't warn in third_party folders. ), BanRule( r'\b(absl|std)::any\b', ( 'absl::any / std::any are not safe to use in a component build.', ), True, # Not an error in third party folders, though it probably should be :) [_THIRD_PARTY_EXCEPT_BLINK], ), BanRule( r'/\bstd::bind\b', ( 'std::bind is banned because of lifetime risks.', 'Use base::BindOnce or base::BindRepeating instead.', ), True, [_THIRD_PARTY_EXCEPT_BLINK], # Not an error in third_party folders. ), BanRule( r'/\bstd::optional\b', ( 'std::optional is banned. Use absl::optional instead.', ), True, [_THIRD_PARTY_EXCEPT_BLINK], # Not an error in third_party folders. ), BanRule( r'/\b#include \b', ( ' overlaps with Time APIs in base. Keep using', 'base classes.', ), True, [_THIRD_PARTY_EXCEPT_BLINK], # Not an error in third_party folders. ), BanRule( r'/\b#include \b', ( 'Exceptions are banned and disabled in Chromium.', ), True, [_THIRD_PARTY_EXCEPT_BLINK], # Not an error in third_party folders. ), BanRule( r'/\bstd::function\b', ( 'std::function is banned. Instead use base::OnceCallback or ', 'base::RepeatingCallback, which directly support Chromium\'s weak ', 'pointers, ref counting and more.', ), False, # Only a warning since it is already used. [_THIRD_PARTY_EXCEPT_BLINK], # Do not warn in third_party folders. ), BanRule( r'/\b#include \b', ( 'Do not use any random number engines from . Instead', 'use base::RandomBitGenerator.', ), True, [_THIRD_PARTY_EXCEPT_BLINK], # Not an error in third_party folders. ), BanRule( r'/\b#include ::GetAddressOf() has been ', 'implicated in a few leaks. ReleaseAndGetAddressOf() is safe but ', 'operator& is generally recommended. So always use operator& instead. ', 'See http://crbug.com/914910 for more conversion guidance.' ), True, (), ), BanRule( 'SHFileOperation', ( 'SHFileOperation was deprecated in Windows Vista, and there are less ', 'complex functions to achieve the same goals. Use IFileOperation for ', 'any esoteric actions instead.' ), True, (), ), BanRule( 'StringFromGUID2', ( 'StringFromGUID2 introduces an unnecessary dependency on ole32.dll.', 'Use base::win::WStringFromGUID instead.' ), True, ( r'/base/win/win_util_unittest.cc', ), ), BanRule( 'StringFromCLSID', ( 'StringFromCLSID introduces an unnecessary dependency on ole32.dll.', 'Use base::win::WStringFromGUID instead.' ), True, ( r'/base/win/win_util_unittest.cc', ), ), BanRule( 'kCFAllocatorNull', ( 'The use of kCFAllocatorNull with the NoCopy creation of ', 'CoreFoundation types is prohibited.', ), True, (), ), BanRule( 'mojo::ConvertTo', ( 'mojo::ConvertTo and TypeConverter are deprecated. Please consider', 'StructTraits / UnionTraits / EnumTraits / ArrayTraits / MapTraits /', 'StringTraits if you would like to convert between custom types and', 'the wire format of mojom types.' ), False, ( r'^fuchsia_web/webengine/browser/url_request_rewrite_rules_manager\.cc$', r'^fuchsia_web/webengine/url_request_rewrite_type_converters\.cc$', r'^third_party/blink/.*\.(cc|h)$', r'^content/renderer/.*\.(cc|h)$', ), ), BanRule( 'GetInterfaceProvider', ( 'InterfaceProvider is deprecated.', 'Please use ExecutionContext::GetBrowserInterfaceBroker and overrides', 'or Platform::GetBrowserInterfaceBroker.' ), False, (), ), BanRule( 'CComPtr', ( 'New code should use Microsoft::WRL::ComPtr from wrl/client.h as a ', 'replacement for CComPtr from ATL. See http://crbug.com/5027 for more ', 'details.' ), False, (), ), BanRule( r'/\b(IFACE|STD)METHOD_?\(', ( 'IFACEMETHOD() and STDMETHOD() make code harder to format and read.', 'Instead, always use IFACEMETHODIMP in the declaration.' ), False, [_THIRD_PARTY_EXCEPT_BLINK], # Not an error in third_party folders. ), BanRule( 'set_owned_by_client', ( 'set_owned_by_client is deprecated.', 'views::View already owns the child views by default. This introduces ', 'a competing ownership model which makes the code difficult to reason ', 'about. See http://crbug.com/1044687 for more details.' ), False, (), ), BanRule( 'RemoveAllChildViewsWithoutDeleting', ( 'RemoveAllChildViewsWithoutDeleting is deprecated.', 'This method is deemed dangerous as, unless raw pointers are re-added,', 'calls to this method introduce memory leaks.' ), False, (), ), BanRule( r'/\bTRACE_EVENT_ASYNC_', ( 'Please use TRACE_EVENT_NESTABLE_ASYNC_.. macros instead', 'of TRACE_EVENT_ASYNC_.. (crbug.com/1038710).', ), False, ( r'^base/trace_event/.*', r'^base/tracing/.*', ), ), BanRule( r'/\bbase::debug::DumpWithoutCrashingUnthrottled[(][)]', ( 'base::debug::DumpWithoutCrashingUnthrottled() does not throttle', 'dumps and may spam crash reports. Consider if the throttled', 'variants suffice instead.', ), False, (), ), BanRule( 'RoInitialize', ( 'Improper use of [base::win]::RoInitialize() has been implicated in a ', 'few COM initialization leaks. Use base::win::ScopedWinrtInitializer ', 'instead. See http://crbug.com/1197722 for more information.' ), True, ( r'^base[\\/]win[\\/]scoped_winrt_initializer\.cc$', ), ), BanRule( r'base::Watchdog', ( 'base::Watchdog is deprecated because it creates its own thread.', 'Instead, manually start a timer on a SequencedTaskRunner.', ), False, (), ), BanRule( 'base::Passed', ( 'Do not use base::Passed. It is a legacy helper for capturing ', 'move-only types with base::BindRepeating, but invoking the ', 'resulting RepeatingCallback moves the captured value out of ', 'the callback storage, and subsequent invocations may pass the ', 'value in a valid but undefined state. Prefer base::BindOnce().', 'See http://crbug.com/1326449 for context.' ), False, (), ), BanRule( r'/\babsl::FunctionRef\b', ( 'absl::FunctionRef is banned. Use base::FunctionRef instead.', ), True, [ # base::Bind{Once,Repeating} references absl::FunctionRef to disallow # interoperability. r'^base[\\/]bind_internal\.h', # base::FunctionRef is implemented on top of absl::FunctionRef. r'^base[\\/]functional[\\/]function_ref.*\..+', # Not an error in third_party folders. _THIRD_PARTY_EXCEPT_BLINK, ], ), ) _BANNED_MOJOM_PATTERNS : Sequence[BanRule] = ( BanRule( 'handle', ( 'Please use one of the more specific shared memory types instead:', ' mojo_base.mojom.ReadOnlySharedMemoryRegion', ' mojo_base.mojom.WritableSharedMemoryRegion', ' mojo_base.mojom.UnsafeSharedMemoryRegion', ), True, ), ) _IPC_ENUM_TRAITS_DEPRECATED = ( 'You are using IPC_ENUM_TRAITS() in your code. It has been deprecated.\n' 'See http://www.chromium.org/Home/chromium-security/education/' 'security-tips-for-ipc') _LONG_PATH_ERROR = ( 'Some files included in this CL have file names that are too long (> 200' ' characters). If committed, these files will cause issues on Windows. See' ' https://crbug.com/612667 for more details.' ) _JAVA_MULTIPLE_DEFINITION_EXCLUDED_PATHS = [ r".*[\\/]AppHooksImpl\.java", r".*[\\/]BuildHooksAndroidImpl\.java", r".*[\\/]LicenseContentProvider\.java", r".*[\\/]PlatformServiceBridgeImpl.java", r".*chrome[\\\/]android[\\\/]feed[\\\/]dummy[\\\/].*\.java", ] # List of image extensions that are used as resources in chromium. _IMAGE_EXTENSIONS = ['.svg', '.png', '.webp'] # These paths contain test data and other known invalid JSON files. _KNOWN_TEST_DATA_AND_INVALID_JSON_FILE_PATTERNS = [ r'test[\\/]data[\\/]', r'testing[\\/]buildbot[\\/]', r'^components[\\/]policy[\\/]resources[\\/]policy_templates\.json$', r'^third_party[\\/]protobuf[\\/]', r'^third_party[\\/]blink[\\/]perf_tests[\\/]speedometer[\\/]resources[\\/]todomvc[\\/]learn.json', r'^third_party[\\/]blink[\\/]renderer[\\/]devtools[\\/]protocol\.json$', r'^third_party[\\/]blink[\\/]web_tests[\\/]external[\\/]wpt[\\/]', r'^tools[\\/]perf[\\/]', r'^tools[\\/]traceline[\\/]svgui[\\/]startup-release.json', # vscode configuration files allow comments r'^tools[\\/]vscode[\\/]', ] # These are not checked on the public chromium-presubmit trybot. # Add files here that rely on .py files that exists only for target_os="android" # checkouts. _ANDROID_SPECIFIC_PYDEPS_FILES = [ 'chrome/android/features/create_stripped_java_factory.pydeps', ] _GENERIC_PYDEPS_FILES = [ 'android_webview/test/components/run_webview_component_smoketest.pydeps', 'android_webview/tools/run_cts.pydeps', 'base/android/jni_generator/jni_generator.pydeps', 'base/android/jni_generator/jni_registration_generator.pydeps', 'build/android/apk_operations.pydeps', 'build/android/devil_chromium.pydeps', 'build/android/gyp/aar.pydeps', 'build/android/gyp/aidl.pydeps', 'build/android/gyp/allot_native_libraries.pydeps', 'build/android/gyp/apkbuilder.pydeps', 'build/android/gyp/assert_static_initializers.pydeps', 'build/android/gyp/bytecode_processor.pydeps', 'build/android/gyp/bytecode_rewriter.pydeps', 'build/android/gyp/check_flag_expectations.pydeps', 'build/android/gyp/compile_java.pydeps', 'build/android/gyp/compile_resources.pydeps', 'build/android/gyp/copy_ex.pydeps', 'build/android/gyp/create_apk_operations_script.pydeps', 'build/android/gyp/create_app_bundle.pydeps', 'build/android/gyp/create_app_bundle_apks.pydeps', 'build/android/gyp/create_bundle_wrapper_script.pydeps', 'build/android/gyp/create_java_binary_script.pydeps', 'build/android/gyp/create_r_java.pydeps', 'build/android/gyp/create_r_txt.pydeps', 'build/android/gyp/create_size_info_files.pydeps', 'build/android/gyp/create_test_apk_wrapper_script.pydeps', 'build/android/gyp/create_ui_locale_resources.pydeps', 'build/android/gyp/dex.pydeps', 'build/android/gyp/dex_jdk_libs.pydeps', 'build/android/gyp/dexsplitter.pydeps', 'build/android/gyp/dist_aar.pydeps', 'build/android/gyp/filter_zip.pydeps', 'build/android/gyp/flatc_java.pydeps', 'build/android/gyp/gcc_preprocess.pydeps', 'build/android/gyp/generate_linker_version_script.pydeps', 'build/android/gyp/ijar.pydeps', 'build/android/gyp/jacoco_instr.pydeps', 'build/android/gyp/java_cpp_enum.pydeps', 'build/android/gyp/java_cpp_features.pydeps', 'build/android/gyp/java_cpp_strings.pydeps', 'build/android/gyp/java_google_api_keys.pydeps', 'build/android/gyp/jinja_template.pydeps', 'build/android/gyp/lint.pydeps', 'build/android/gyp/merge_manifest.pydeps', 'build/android/gyp/optimize_resources.pydeps', 'build/android/gyp/prepare_resources.pydeps', 'build/android/gyp/process_native_prebuilt.pydeps', 'build/android/gyp/proguard.pydeps', 'build/android/gyp/system_image_apks.pydeps', 'build/android/gyp/trace_event_bytecode_rewriter.pydeps', 'build/android/gyp/turbine.pydeps', 'build/android/gyp/unused_resources.pydeps', 'build/android/gyp/validate_static_library_dex_references.pydeps', 'build/android/gyp/write_build_config.pydeps', 'build/android/gyp/write_native_libraries_java.pydeps', 'build/android/gyp/zip.pydeps', 'build/android/incremental_install/generate_android_manifest.pydeps', 'build/android/incremental_install/write_installer_json.pydeps', 'build/android/pylib/results/presentation/test_results_presentation.pydeps', 'build/android/resource_sizes.pydeps', 'build/android/test_runner.pydeps', 'build/android/test_wrapper/logdog_wrapper.pydeps', 'build/lacros/lacros_resource_sizes.pydeps', 'build/protoc_java.pydeps', 'chrome/android/monochrome/scripts/monochrome_python_tests.pydeps', 'chrome/test/chromedriver/log_replay/client_replay_unittest.pydeps', 'chrome/test/chromedriver/test/run_py_tests.pydeps', 'chromecast/resource_sizes/chromecast_resource_sizes.pydeps', 'components/cronet/tools/generate_javadoc.pydeps', 'components/cronet/tools/jar_src.pydeps', 'components/module_installer/android/module_desc_java.pydeps', 'content/public/android/generate_child_service.pydeps', 'net/tools/testserver/testserver.pydeps', 'testing/scripts/run_wpt_tests.pydeps', 'testing/scripts/run_isolated_script_test.pydeps', 'testing/merge_scripts/standard_isolated_script_merge.pydeps', 'testing/merge_scripts/standard_gtest_merge.pydeps', 'testing/merge_scripts/code_coverage/merge_results.pydeps', 'testing/merge_scripts/code_coverage/merge_steps.pydeps', 'third_party/android_platform/development/scripts/stack.pydeps', 'third_party/blink/renderer/bindings/scripts/build_web_idl_database.pydeps', 'third_party/blink/renderer/bindings/scripts/check_generated_file_list.pydeps', 'third_party/blink/renderer/bindings/scripts/collect_idl_files.pydeps', 'third_party/blink/renderer/bindings/scripts/generate_bindings.pydeps', 'third_party/blink/renderer/bindings/scripts/validate_web_idl.pydeps', 'third_party/blink/tools/blinkpy/web_tests/merge_results.pydeps', 'third_party/blink/tools/merge_web_test_results.pydeps', 'tools/binary_size/sizes.pydeps', 'tools/binary_size/supersize.pydeps', 'tools/perf/process_perf_results.pydeps', ] _ALL_PYDEPS_FILES = _ANDROID_SPECIFIC_PYDEPS_FILES + _GENERIC_PYDEPS_FILES # Bypass the AUTHORS check for these accounts. _KNOWN_ROBOTS = set( ) | set('%s@appspot.gserviceaccount.com' % s for s in ('findit-for-me',) ) | set('%s@developer.gserviceaccount.com' % s for s in ('3su6n15k.default',) ) | set('%s@chops-service-accounts.iam.gserviceaccount.com' % s for s in ('bling-autoroll-builder', 'v8-ci-autoroll-builder', 'wpt-autoroller', 'chrome-weblayer-builder', 'lacros-version-skew-roller', 'skylab-test-cros-roller', 'infra-try-recipes-tester', 'lacros-tracking-roller', 'lacros-sdk-version-roller') ) | set('%s@skia-public.iam.gserviceaccount.com' % s for s in ('chromium-autoroll', 'chromium-release-autoroll') ) | set('%s@skia-corp.google.com.iam.gserviceaccount.com' % s for s in ('chromium-internal-autoroll',) ) | set('%s@owners-cleanup-prod.google.com.iam.gserviceaccount.com' % s for s in ('swarming-tasks',)) _INVALID_GRD_FILE_LINE = [ (r'.""" files = [] pattern = input_api.re.compile(r'^#include\s*', input_api.re.MULTILINE) for f in input_api.AffectedSourceFiles(input_api.FilterSourceFile): if not f.LocalPath().endswith('.h'): continue contents = input_api.ReadFile(f) if pattern.search(contents): files.append(f) if len(files): return [ output_api.PresubmitError( 'Do not #include in header files, since it inserts static ' 'initialization into every file including the header. Instead, ' '#include . See http://crbug.com/94794', files) ] return [] def CheckNoStrCatRedefines(input_api, output_api): """Checks no windows headers with StrCat redefined are included directly.""" files = [] files_to_check = (r'.+%s' % _HEADER_EXTENSIONS, r'.+%s' % _IMPLEMENTATION_EXTENSIONS) files_to_skip = (input_api.DEFAULT_FILES_TO_SKIP + _NON_BASE_DEPENDENT_PATHS) sources_filter = lambda f: input_api.FilterSourceFile( f, files_to_check=files_to_check, files_to_skip=files_to_skip) pattern_deny = input_api.re.compile( r'^#include\s*[<"](shlwapi|atlbase|propvarutil|sphelper).h[">]', input_api.re.MULTILINE) pattern_allow = input_api.re.compile( r'^#include\s"base/win/windows_defines.inc"', input_api.re.MULTILINE) for f in input_api.AffectedSourceFiles(sources_filter): contents = input_api.ReadFile(f) if pattern_deny.search( contents) and not pattern_allow.search(contents): files.append(f.LocalPath()) if len(files): return [ output_api.PresubmitError( 'Do not #include shlwapi.h, atlbase.h, propvarutil.h or sphelper.h ' 'directly since they pollute code with StrCat macro. Instead, ' 'include matching header from base/win. See http://crbug.com/856536', files) ] return [] def CheckNoUNIT_TESTInSourceFiles(input_api, output_api): """Checks to make sure no source files use UNIT_TEST.""" problems = [] for f in input_api.AffectedFiles(): if (not f.LocalPath().endswith(('.cc', '.mm'))): continue for line_num, line in f.ChangedContents(): if 'UNIT_TEST ' in line or line.endswith('UNIT_TEST'): problems.append(' %s:%d' % (f.LocalPath(), line_num)) if not problems: return [] return [ output_api.PresubmitPromptWarning('UNIT_TEST is only for headers.\n' + '\n'.join(problems)) ] def CheckNoDISABLETypoInTests(input_api, output_api): """Checks to prevent attempts to disable tests with DISABLE_ prefix. This test warns if somebody tries to disable a test with the DISABLE_ prefix instead of DISABLED_. To filter false positives, reports are only generated if a corresponding MAYBE_ line exists. """ problems = [] # The following two patterns are looked for in tandem - is a test labeled # as MAYBE_ followed by a DISABLE_ (instead of the correct DISABLED) maybe_pattern = input_api.re.compile(r'MAYBE_([a-zA-Z0-9_]+)') disable_pattern = input_api.re.compile(r'DISABLE_([a-zA-Z0-9_]+)') # This is for the case that a test is disabled on all platforms. full_disable_pattern = input_api.re.compile( r'^\s*TEST[^(]*\([a-zA-Z0-9_]+,\s*DISABLE_[a-zA-Z0-9_]+\)', input_api.re.MULTILINE) for f in input_api.AffectedFiles(False): if not 'test' in f.LocalPath() or not f.LocalPath().endswith('.cc'): continue # Search for MABYE_, DISABLE_ pairs. disable_lines = {} # Maps of test name to line number. maybe_lines = {} for line_num, line in f.ChangedContents(): disable_match = disable_pattern.search(line) if disable_match: disable_lines[disable_match.group(1)] = line_num maybe_match = maybe_pattern.search(line) if maybe_match: maybe_lines[maybe_match.group(1)] = line_num # Search for DISABLE_ occurrences within a TEST() macro. disable_tests = set(disable_lines.keys()) maybe_tests = set(maybe_lines.keys()) for test in disable_tests.intersection(maybe_tests): problems.append(' %s:%d' % (f.LocalPath(), disable_lines[test])) contents = input_api.ReadFile(f) full_disable_match = full_disable_pattern.search(contents) if full_disable_match: problems.append(' %s' % f.LocalPath()) if not problems: return [] return [ output_api.PresubmitPromptWarning( 'Attempt to disable a test with DISABLE_ instead of DISABLED_?\n' + '\n'.join(problems)) ] def CheckForgettingMAYBEInTests(input_api, output_api): """Checks to make sure tests disabled conditionally are not missing a corresponding MAYBE_ prefix. """ # Expect at least a lowercase character in the test name. This helps rule out # false positives with macros wrapping the actual tests name. define_maybe_pattern = input_api.re.compile( r'^\#define MAYBE_(?P\w*[a-z]\w*)') # The test_maybe_pattern needs to handle all of these forms. The standard: # IN_PROC_TEST_F(SyncTest, MAYBE_Start) { # With a wrapper macro around the test name: # IN_PROC_TEST_F(SyncTest, E2E_ENABLED(MAYBE_Start)) { # And the odd-ball NACL_BROWSER_TEST_f format: # NACL_BROWSER_TEST_F(NaClBrowserTest, SimpleLoad, { # The optional E2E_ENABLED-style is handled with (\w*\()? # The NACL_BROWSER_TEST_F pattern is handled by allowing a trailing comma or # trailing ')'. test_maybe_pattern = ( r'^\s*\w*TEST[^(]*\(\s*\w+,\s*(\w*\()?MAYBE_{test_name}[\),]') suite_maybe_pattern = r'^\s*\w*TEST[^(]*\(\s*MAYBE_{test_name}[\),]' warnings = [] # Read the entire files. We can't just read the affected lines, forgetting to # add MAYBE_ on a change would not show up otherwise. for f in input_api.AffectedFiles(False): if not 'test' in f.LocalPath() or not f.LocalPath().endswith('.cc'): continue contents = input_api.ReadFile(f) lines = contents.splitlines(True) current_position = 0 warning_test_names = set() for line_num, line in enumerate(lines, start=1): current_position += len(line) maybe_match = define_maybe_pattern.search(line) if maybe_match: test_name = maybe_match.group('test_name') # Do not warn twice for the same test. if (test_name in warning_test_names): continue warning_test_names.add(test_name) # Attempt to find the corresponding MAYBE_ test or suite, starting from # the current position. test_match = input_api.re.compile( test_maybe_pattern.format(test_name=test_name), input_api.re.MULTILINE).search(contents, current_position) suite_match = input_api.re.compile( suite_maybe_pattern.format(test_name=test_name), input_api.re.MULTILINE).search(contents, current_position) if not test_match and not suite_match: warnings.append( output_api.PresubmitPromptWarning( '%s:%d found MAYBE_ defined without corresponding test %s' % (f.LocalPath(), line_num, test_name))) return warnings def CheckDCHECK_IS_ONHasBraces(input_api, output_api): """Checks to make sure DCHECK_IS_ON() does not skip the parentheses.""" errors = [] pattern = input_api.re.compile(r'\bDCHECK_IS_ON\b(?!\(\))', input_api.re.MULTILINE) for f in input_api.AffectedSourceFiles(input_api.FilterSourceFile): if (not f.LocalPath().endswith(('.cc', '.mm', '.h'))): continue for lnum, line in f.ChangedContents(): if input_api.re.search(pattern, line): errors.append( output_api.PresubmitError(( '%s:%d: Use of DCHECK_IS_ON() must be written as "#if ' + 'DCHECK_IS_ON()", not forgetting the parentheses.') % (f.LocalPath(), lnum))) return errors # TODO(crbug/1138055): Reimplement CheckUmaHistogramChangesOnUpload check in a # more reliable way. See # https://chromium-review.googlesource.com/c/chromium/src/+/2500269 def CheckFlakyTestUsage(input_api, output_api): """Check that FlakyTest annotation is our own instead of the android one""" pattern = input_api.re.compile(r'import android.test.FlakyTest;') files = [] for f in input_api.AffectedSourceFiles(input_api.FilterSourceFile): if f.LocalPath().endswith('Test.java'): if pattern.search(input_api.ReadFile(f)): files.append(f) if len(files): return [ output_api.PresubmitError( 'Use org.chromium.base.test.util.FlakyTest instead of ' 'android.test.FlakyTest', files) ] return [] def CheckNoDEPSGIT(input_api, output_api): """Make sure .DEPS.git is never modified manually.""" if any(f.LocalPath().endswith('.DEPS.git') for f in input_api.AffectedFiles()): return [ output_api.PresubmitError( 'Never commit changes to .DEPS.git. This file is maintained by an\n' 'automated system based on what\'s in DEPS and your changes will be\n' 'overwritten.\n' 'See https://sites.google.com/a/chromium.org/dev/developers/how-tos/' 'get-the-code#Rolling_DEPS\n' 'for more information') ] return [] def CheckValidHostsInDEPSOnUpload(input_api, output_api): """Checks that DEPS file deps are from allowed_hosts.""" # Run only if DEPS file has been modified to annoy fewer bystanders. if all(f.LocalPath() != 'DEPS' for f in input_api.AffectedFiles()): return [] # Outsource work to gclient verify try: gclient_path = input_api.os_path.join(input_api.PresubmitLocalPath(), 'third_party', 'depot_tools', 'gclient.py') input_api.subprocess.check_output( [input_api.python3_executable, gclient_path, 'verify'], stderr=input_api.subprocess.STDOUT) return [] except input_api.subprocess.CalledProcessError as error: return [ output_api.PresubmitError( 'DEPS file must have only git dependencies.', long_text=error.output) ] def _GetMessageForMatchingType(input_api, affected_file, line_number, line, ban_rule): """Helper method for CheckNoBannedFunctions and CheckNoDeprecatedMojoTypes. Returns an string composed of the name of the file, the line number where the match has been found and the additional text passed as |message| in case the target type name matches the text inside the line passed as parameter. """ result = [] # Ignore comments about banned types. if input_api.re.search(r"^ *//", line): return result # A // nocheck comment will bypass this error. if line.endswith(" nocheck"): return result matched = False if ban_rule.pattern[0:1] == '/': regex = ban_rule.pattern[1:] if input_api.re.search(regex, line): matched = True elif ban_rule.pattern in line: matched = True if matched: result.append(' %s:%d:' % (affected_file.LocalPath(), line_number)) for line in ban_rule.explanation: result.append(' %s' % line) return result def CheckNoBannedFunctions(input_api, output_api): """Make sure that banned functions are not used.""" warnings = [] errors = [] def IsExcludedFile(affected_file, excluded_paths): if not excluded_paths: return False local_path = affected_file.LocalPath() for item in excluded_paths: if input_api.re.match(item, local_path): return True return False def IsIosObjcFile(affected_file): local_path = affected_file.LocalPath() if input_api.os_path.splitext(local_path)[-1] not in ('.mm', '.m', '.h'): return False basename = input_api.os_path.basename(local_path) if 'ios' in basename.split('_'): return True for sep in (input_api.os_path.sep, input_api.os_path.altsep): if sep and 'ios' in local_path.split(sep): return True return False def CheckForMatch(affected_file, line_num: int, line: str, ban_rule: BanRule): if IsExcludedFile(affected_file, ban_rule.excluded_paths): return problems = _GetMessageForMatchingType(input_api, f, line_num, line, ban_rule) if problems: if ban_rule.treat_as_error is not None and ban_rule.treat_as_error: errors.extend(problems) else: warnings.extend(problems) file_filter = lambda f: f.LocalPath().endswith(('.java')) for f in input_api.AffectedFiles(file_filter=file_filter): for line_num, line in f.ChangedContents(): for ban_rule in _BANNED_JAVA_FUNCTIONS: CheckForMatch(f, line_num, line, ban_rule) file_filter = lambda f: f.LocalPath().endswith(('.mm', '.m', '.h')) for f in input_api.AffectedFiles(file_filter=file_filter): for line_num, line in f.ChangedContents(): for ban_rule in _BANNED_OBJC_FUNCTIONS: CheckForMatch(f, line_num, line, ban_rule) for f in input_api.AffectedFiles(file_filter=IsIosObjcFile): for line_num, line in f.ChangedContents(): for ban_rule in _BANNED_IOS_OBJC_FUNCTIONS: CheckForMatch(f, line_num, line, ban_rule) egtest_filter = lambda f: f.LocalPath().endswith(('_egtest.mm')) for f in input_api.AffectedFiles(file_filter=egtest_filter): for line_num, line in f.ChangedContents(): for ban_rule in _BANNED_IOS_EGTEST_FUNCTIONS: CheckForMatch(f, line_num, line, ban_rule) file_filter = lambda f: f.LocalPath().endswith(('.cc', '.mm', '.h')) for f in input_api.AffectedFiles(file_filter=file_filter): for line_num, line in f.ChangedContents(): for ban_rule in _BANNED_CPP_FUNCTIONS: CheckForMatch(f, line_num, line, ban_rule) file_filter = lambda f: f.LocalPath().endswith(('.mojom')) for f in input_api.AffectedFiles(file_filter=file_filter): for line_num, line in f.ChangedContents(): for ban_rule in _BANNED_MOJOM_PATTERNS: CheckForMatch(f, line_num, line, ban_rule) result = [] if (warnings): result.append( output_api.PresubmitPromptWarning('Banned functions were used.\n' + '\n'.join(warnings))) if (errors): result.append( output_api.PresubmitError('Banned functions were used.\n' + '\n'.join(errors))) return result def _CheckAndroidNoBannedImports(input_api, output_api): """Make sure that banned java imports are not used.""" errors = [] file_filter = lambda f: f.LocalPath().endswith(('.java')) for f in input_api.AffectedFiles(file_filter=file_filter): for line_num, line in f.ChangedContents(): for ban_rule in _BANNED_JAVA_IMPORTS: # Consider merging this into the above function. There is no # real difference anymore other than helping with a little # bit of boilerplate text. Doing so means things like # `treat_as_error` will also be uniformly handled. problems = _GetMessageForMatchingType(input_api, f, line_num, line, ban_rule) if problems: errors.extend(problems) result = [] if (errors): result.append( output_api.PresubmitError('Banned imports were used.\n' + '\n'.join(errors))) return result def CheckNoPragmaOnce(input_api, output_api): """Make sure that banned functions are not used.""" files = [] pattern = input_api.re.compile(r'^#pragma\s+once', input_api.re.MULTILINE) for f in input_api.AffectedSourceFiles(input_api.FilterSourceFile): if not f.LocalPath().endswith('.h'): continue if f.LocalPath().endswith('com_imported_mstscax.h'): continue contents = input_api.ReadFile(f) if pattern.search(contents): files.append(f) if files: return [ output_api.PresubmitError( 'Do not use #pragma once in header files.\n' 'See http://www.chromium.org/developers/coding-style#TOC-File-headers', files) ] return [] def CheckNoTrinaryTrueFalse(input_api, output_api): """Checks to make sure we don't introduce use of foo ? true : false.""" problems = [] pattern = input_api.re.compile(r'\?\s*(true|false)\s*:\s*(true|false)') for f in input_api.AffectedFiles(): if not f.LocalPath().endswith(('.cc', '.h', '.inl', '.m', '.mm')): continue for line_num, line in f.ChangedContents(): if pattern.match(line): problems.append(' %s:%d' % (f.LocalPath(), line_num)) if not problems: return [] return [ output_api.PresubmitPromptWarning( 'Please consider avoiding the "? true : false" pattern if possible.\n' + '\n'.join(problems)) ] def CheckUnwantedDependencies(input_api, output_api): """Runs checkdeps on #include and import statements added in this change. Breaking - rules is an error, breaking ! rules is a warning. """ # Return early if no relevant file types were modified. for f in input_api.AffectedFiles(): path = f.LocalPath() if (_IsCPlusPlusFile(input_api, path) or _IsProtoFile(input_api, path) or _IsJavaFile(input_api, path)): break else: return [] import sys # We need to wait until we have an input_api object and use this # roundabout construct to import checkdeps because this file is # eval-ed and thus doesn't have __file__. original_sys_path = sys.path try: sys.path = sys.path + [ input_api.os_path.join(input_api.PresubmitLocalPath(), 'buildtools', 'checkdeps') ] import checkdeps from rules import Rule finally: # Restore sys.path to what it was before. sys.path = original_sys_path added_includes = [] added_imports = [] added_java_imports = [] for f in input_api.AffectedFiles(): if _IsCPlusPlusFile(input_api, f.LocalPath()): changed_lines = [line for _, line in f.ChangedContents()] added_includes.append([f.AbsoluteLocalPath(), changed_lines]) elif _IsProtoFile(input_api, f.LocalPath()): changed_lines = [line for _, line in f.ChangedContents()] added_imports.append([f.AbsoluteLocalPath(), changed_lines]) elif _IsJavaFile(input_api, f.LocalPath()): changed_lines = [line for _, line in f.ChangedContents()] added_java_imports.append([f.AbsoluteLocalPath(), changed_lines]) deps_checker = checkdeps.DepsChecker(input_api.PresubmitLocalPath()) error_descriptions = [] warning_descriptions = [] error_subjects = set() warning_subjects = set() for path, rule_type, rule_description in deps_checker.CheckAddedCppIncludes( added_includes): path = input_api.os_path.relpath(path, input_api.PresubmitLocalPath()) description_with_path = '%s\n %s' % (path, rule_description) if rule_type == Rule.DISALLOW: error_descriptions.append(description_with_path) error_subjects.add("#includes") else: warning_descriptions.append(description_with_path) warning_subjects.add("#includes") for path, rule_type, rule_description in deps_checker.CheckAddedProtoImports( added_imports): path = input_api.os_path.relpath(path, input_api.PresubmitLocalPath()) description_with_path = '%s\n %s' % (path, rule_description) if rule_type == Rule.DISALLOW: error_descriptions.append(description_with_path) error_subjects.add("imports") else: warning_descriptions.append(description_with_path) warning_subjects.add("imports") for path, rule_type, rule_description in deps_checker.CheckAddedJavaImports( added_java_imports, _JAVA_MULTIPLE_DEFINITION_EXCLUDED_PATHS): path = input_api.os_path.relpath(path, input_api.PresubmitLocalPath()) description_with_path = '%s\n %s' % (path, rule_description) if rule_type == Rule.DISALLOW: error_descriptions.append(description_with_path) error_subjects.add("imports") else: warning_descriptions.append(description_with_path) warning_subjects.add("imports") results = [] if error_descriptions: results.append( output_api.PresubmitError( 'You added one or more %s that violate checkdeps rules.' % " and ".join(error_subjects), error_descriptions)) if warning_descriptions: results.append( output_api.PresubmitPromptOrNotify( 'You added one or more %s of files that are temporarily\n' 'allowed but being removed. Can you avoid introducing the\n' '%s? See relevant DEPS file(s) for details and contacts.' % (" and ".join(warning_subjects), "/".join(warning_subjects)), warning_descriptions)) return results def CheckFilePermissions(input_api, output_api): """Check that all files have their permissions properly set.""" if input_api.platform == 'win32': return [] checkperms_tool = input_api.os_path.join(input_api.PresubmitLocalPath(), 'tools', 'checkperms', 'checkperms.py') args = [ input_api.python3_executable, checkperms_tool, '--root', input_api.change.RepositoryRoot() ] with input_api.CreateTemporaryFile() as file_list: for f in input_api.AffectedFiles(): # checkperms.py file/directory arguments must be relative to the # repository. file_list.write((f.LocalPath() + '\n').encode('utf8')) file_list.close() args += ['--file-list', file_list.name] try: input_api.subprocess.check_output(args) return [] except input_api.subprocess.CalledProcessError as error: return [ output_api.PresubmitError('checkperms.py failed:', long_text=error.output.decode( 'utf-8', 'ignore')) ] def CheckNoAuraWindowPropertyHInHeaders(input_api, output_api): """Makes sure we don't include ui/aura/window_property.h in header files. """ pattern = input_api.re.compile(r'^#include\s*"ui/aura/window_property.h"') errors = [] for f in input_api.AffectedFiles(): if not f.LocalPath().endswith('.h'): continue for line_num, line in f.ChangedContents(): if pattern.match(line): errors.append(' %s:%d' % (f.LocalPath(), line_num)) results = [] if errors: results.append( output_api.PresubmitError( 'Header files should not include ui/aura/window_property.h', errors)) return results def CheckNoInternalHeapIncludes(input_api, output_api): """Makes sure we don't include any headers from third_party/blink/renderer/platform/heap/impl or third_party/blink/renderer/platform/heap/v8_wrapper from files outside of third_party/blink/renderer/platform/heap """ impl_pattern = input_api.re.compile( r'^\s*#include\s*"third_party/blink/renderer/platform/heap/impl/.*"') v8_wrapper_pattern = input_api.re.compile( r'^\s*#include\s*"third_party/blink/renderer/platform/heap/v8_wrapper/.*"' ) file_filter = lambda f: not input_api.re.match( r"^third_party[\\/]blink[\\/]renderer[\\/]platform[\\/]heap[\\/].*", f.LocalPath()) errors = [] for f in input_api.AffectedFiles(file_filter=file_filter): for line_num, line in f.ChangedContents(): if impl_pattern.match(line) or v8_wrapper_pattern.match(line): errors.append(' %s:%d' % (f.LocalPath(), line_num)) results = [] if errors: results.append( output_api.PresubmitError( 'Do not include files from third_party/blink/renderer/platform/heap/impl' ' or third_party/blink/renderer/platform/heap/v8_wrapper. Use the ' 'relevant counterparts from third_party/blink/renderer/platform/heap', errors)) return results def _CheckForVersionControlConflictsInFile(input_api, f): pattern = input_api.re.compile('^(?:<<<<<<<|>>>>>>>) |^=======$') errors = [] for line_num, line in f.ChangedContents(): if f.LocalPath().endswith(('.md', '.rst', '.txt')): # First-level headers in markdown look a lot like version control # conflict markers. http://daringfireball.net/projects/markdown/basics continue if pattern.match(line): errors.append(' %s:%d %s' % (f.LocalPath(), line_num, line)) return errors def CheckForVersionControlConflicts(input_api, output_api): """Usually this is not intentional and will cause a compile failure.""" errors = [] for f in input_api.AffectedFiles(): errors.extend(_CheckForVersionControlConflictsInFile(input_api, f)) results = [] if errors: results.append( output_api.PresubmitError( 'Version control conflict markers found, please resolve.', errors)) return results def CheckGoogleSupportAnswerUrlOnUpload(input_api, output_api): pattern = input_api.re.compile('support\.google\.com\/chrome.*/answer') errors = [] for f in input_api.AffectedFiles(): for line_num, line in f.ChangedContents(): if pattern.search(line): errors.append(' %s:%d %s' % (f.LocalPath(), line_num, line)) results = [] if errors: results.append( output_api.PresubmitPromptWarning( 'Found Google support URL addressed by answer number. Please replace ' 'with a p= identifier instead. See crbug.com/679462\n', errors)) return results def CheckHardcodedGoogleHostsInLowerLayers(input_api, output_api): def FilterFile(affected_file): """Filter function for use with input_api.AffectedSourceFiles, below. This filters out everything except non-test files from top-level directories that generally speaking should not hard-code service URLs (e.g. src/android_webview/, src/content/ and others). """ return input_api.FilterSourceFile( affected_file, files_to_check=[r'^(android_webview|base|content|net)[\\/].*'], files_to_skip=(_EXCLUDED_PATHS + _TEST_CODE_EXCLUDED_PATHS + input_api.DEFAULT_FILES_TO_SKIP)) base_pattern = ('"[^"]*(google|googleapis|googlezip|googledrive|appspot)' '\.(com|net)[^"]*"') comment_pattern = input_api.re.compile('//.*%s' % base_pattern) pattern = input_api.re.compile(base_pattern) problems = [] # items are (filename, line_number, line) for f in input_api.AffectedSourceFiles(FilterFile): for line_num, line in f.ChangedContents(): if not comment_pattern.search(line) and pattern.search(line): problems.append((f.LocalPath(), line_num, line)) if problems: return [ output_api.PresubmitPromptOrNotify( 'Most layers below src/chrome/ should not hardcode service URLs.\n' 'Are you sure this is correct?', [ ' %s:%d: %s' % (problem[0], problem[1], problem[2]) for problem in problems ]) ] else: return [] def CheckChromeOsSyncedPrefRegistration(input_api, output_api): """Warns if Chrome OS C++ files register syncable prefs as browser prefs.""" def FileFilter(affected_file): """Includes directories known to be Chrome OS only.""" return input_api.FilterSourceFile( affected_file, files_to_check=( '^ash/', '^chromeos/', # Top-level src/chromeos. '.*/chromeos/', # Any path component. '^components/arc', '^components/exo'), files_to_skip=(input_api.DEFAULT_FILES_TO_SKIP)) prefs = [] priority_prefs = [] for f in input_api.AffectedFiles(file_filter=FileFilter): for line_num, line in f.ChangedContents(): if input_api.re.search('PrefRegistrySyncable::SYNCABLE_PREF', line): prefs.append(' %s:%d:' % (f.LocalPath(), line_num)) prefs.append(' %s' % line) if input_api.re.search( 'PrefRegistrySyncable::SYNCABLE_PRIORITY_PREF', line): priority_prefs.append(' %s:%d' % (f.LocalPath(), line_num)) priority_prefs.append(' %s' % line) results = [] if (prefs): results.append( output_api.PresubmitPromptWarning( 'Preferences were registered as SYNCABLE_PREF and will be controlled ' 'by browser sync settings. If these prefs should be controlled by OS ' 'sync settings use SYNCABLE_OS_PREF instead.\n' + '\n'.join(prefs))) if (priority_prefs): results.append( output_api.PresubmitPromptWarning( 'Preferences were registered as SYNCABLE_PRIORITY_PREF and will be ' 'controlled by browser sync settings. If these prefs should be ' 'controlled by OS sync settings use SYNCABLE_OS_PRIORITY_PREF ' 'instead.\n' + '\n'.join(prefs))) return results # TODO: add unit tests. def CheckNoAbbreviationInPngFileName(input_api, output_api): """Makes sure there are no abbreviations in the name of PNG files. The native_client_sdk directory is excluded because it has auto-generated PNG files for documentation. """ errors = [] files_to_check = [r'.*_[a-z]_.*\.png$|.*_[a-z]\.png$'] files_to_skip = [r'^native_client_sdk[\\/]', r'^services[\\/]test[\\/]', r'^third_party[\\/]blink[\\/]web_tests[\\/]', ] file_filter = lambda f: input_api.FilterSourceFile( f, files_to_check=files_to_check, files_to_skip=files_to_skip) for f in input_api.AffectedFiles(include_deletes=False, file_filter=file_filter): errors.append(' %s' % f.LocalPath()) results = [] if errors: results.append( output_api.PresubmitError( 'The name of PNG files should not have abbreviations. \n' 'Use _hover.png, _center.png, instead of _h.png, _c.png.\n' 'Contact oshima@chromium.org if you have questions.', errors)) return results def CheckNoProductIconsAddedToPublicRepo(input_api, output_api): """Heuristically identifies product icons based on their file name and reminds contributors not to add them to the Chromium repository. """ errors = [] files_to_check = [r'.*google.*\.png$|.*google.*\.svg$|.*google.*\.icon$'] file_filter = lambda f: input_api.FilterSourceFile( f, files_to_check=files_to_check) for f in input_api.AffectedFiles(include_deletes=False, file_filter=file_filter): errors.append(' %s' % f.LocalPath()) results = [] if errors: # Give warnings instead of errors on presubmit --all and presubmit # --files. message_type = (output_api.PresubmitNotifyResult if input_api.no_diffs else output_api.PresubmitError) results.append( message_type( 'Trademarked images should not be added to the public repo. ' 'See crbug.com/944754', errors)) return results def _ExtractAddRulesFromParsedDeps(parsed_deps): """Extract the rules that add dependencies from a parsed DEPS file. Args: parsed_deps: the locals dictionary from evaluating the DEPS file.""" add_rules = set() add_rules.update([ rule[1:] for rule in parsed_deps.get('include_rules', []) if rule.startswith('+') or rule.startswith('!') ]) for _, rules in parsed_deps.get('specific_include_rules', {}).items(): add_rules.update([ rule[1:] for rule in rules if rule.startswith('+') or rule.startswith('!') ]) return add_rules def _ParseDeps(contents): """Simple helper for parsing DEPS files.""" # Stubs for handling special syntax in the root DEPS file. class _VarImpl: def __init__(self, local_scope): self._local_scope = local_scope def Lookup(self, var_name): """Implements the Var syntax.""" try: return self._local_scope['vars'][var_name] except KeyError: raise Exception('Var is not defined: %s' % var_name) local_scope = {} global_scope = { 'Var': _VarImpl(local_scope).Lookup, 'Str': str, } exec(contents, global_scope, local_scope) return local_scope def _CalculateAddedDeps(os_path, old_contents, new_contents): """Helper method for CheckAddedDepsHaveTargetApprovals. Returns a set of DEPS entries that we should look up. For a directory (rather than a specific filename) we fake a path to a specific filename by adding /DEPS. This is chosen as a file that will seldom or never be subject to per-file include_rules. """ # We ignore deps entries on auto-generated directories. AUTO_GENERATED_DIRS = ['grit', 'jni'] old_deps = _ExtractAddRulesFromParsedDeps(_ParseDeps(old_contents)) new_deps = _ExtractAddRulesFromParsedDeps(_ParseDeps(new_contents)) added_deps = new_deps.difference(old_deps) results = set() for added_dep in added_deps: if added_dep.split('/')[0] in AUTO_GENERATED_DIRS: continue # Assume that a rule that ends in .h is a rule for a specific file. if added_dep.endswith('.h'): results.add(added_dep) else: results.add(os_path.join(added_dep, 'DEPS')) return results def CheckAddedDepsHaveTargetApprovals(input_api, output_api): """When a dependency prefixed with + is added to a DEPS file, we want to make sure that the change is reviewed by an OWNER of the target file or directory, to avoid layering violations from being introduced. This check verifies that this happens. """ # We rely on Gerrit's code-owners to check approvals. # input_api.gerrit is always set for Chromium, but other projects # might not use Gerrit. if not input_api.gerrit or input_api.no_diffs: return [] if 'PRESUBMIT_SKIP_NETWORK' in input_api.environ: return [] try: if (input_api.change.issue and input_api.gerrit.IsOwnersOverrideApproved( input_api.change.issue)): # Skip OWNERS check when Owners-Override label is approved. This is # intended for global owners, trusted bots, and on-call sheriffs. # Review is still required for these changes. return [] except Exception as e: return [output_api.PresubmitPromptWarning( 'Failed to retrieve owner override status - %s' % str(e))] virtual_depended_on_files = set() file_filter = lambda f: not input_api.re.match( r"^third_party[\\/]blink[\\/].*", f.LocalPath()) for f in input_api.AffectedFiles(include_deletes=False, file_filter=file_filter): filename = input_api.os_path.basename(f.LocalPath()) if filename == 'DEPS': virtual_depended_on_files.update( _CalculateAddedDeps(input_api.os_path, '\n'.join(f.OldContents()), '\n'.join(f.NewContents()))) if not virtual_depended_on_files: return [] if input_api.is_committing: if input_api.tbr: return [ output_api.PresubmitNotifyResult( '--tbr was specified, skipping OWNERS check for DEPS additions' ) ] # TODO(dcheng): Make this generate an error on dry runs if the reviewer # is not added, to prevent review serialization. if input_api.dry_run: return [ output_api.PresubmitNotifyResult( 'This is a dry run, skipping OWNERS check for DEPS additions' ) ] if not input_api.change.issue: return [ output_api.PresubmitError( "DEPS approval by OWNERS check failed: this change has " "no change number, so we can't check it for approvals.") ] output = output_api.PresubmitError else: output = output_api.PresubmitNotifyResult owner_email, reviewers = ( input_api.canned_checks.GetCodereviewOwnerAndReviewers( input_api, None, approval_needed=input_api.is_committing)) owner_email = owner_email or input_api.change.author_email approval_status = input_api.owners_client.GetFilesApprovalStatus( virtual_depended_on_files, reviewers.union([owner_email]), []) missing_files = [ f for f in virtual_depended_on_files if approval_status[f] != input_api.owners_client.APPROVED ] # We strip the /DEPS part that was added by # _FilesToCheckForIncomingDeps to fake a path to a file in a # directory. def StripDeps(path): start_deps = path.rfind('/DEPS') if start_deps != -1: return path[:start_deps] else: return path unapproved_dependencies = [ "'+%s'," % StripDeps(path) for path in missing_files ] if unapproved_dependencies: output_list = [ output( 'You need LGTM from owners of depends-on paths in DEPS that were ' 'modified in this CL:\n %s' % '\n '.join(sorted(unapproved_dependencies))) ] suggested_owners = input_api.owners_client.SuggestOwners( missing_files, exclude=[owner_email]) output_list.append( output('Suggested missing target path OWNERS:\n %s' % '\n '.join(suggested_owners or []))) return output_list return [] # TODO: add unit tests. def CheckSpamLogging(input_api, output_api): file_inclusion_pattern = [r'.+%s' % _IMPLEMENTATION_EXTENSIONS] files_to_skip = ( _EXCLUDED_PATHS + _TEST_CODE_EXCLUDED_PATHS + input_api.DEFAULT_FILES_TO_SKIP + ( r"^base[\\/]logging\.h$", r"^base[\\/]logging\.cc$", r"^base[\\/]task[\\/]thread_pool[\\/]task_tracker\.cc$", r"^chrome[\\/]app[\\/]chrome_main_delegate\.cc$", r"^chrome[\\/]browser[\\/]chrome_browser_main\.cc$", r"^chrome[\\/]browser[\\/]ui[\\/]startup[\\/]" r"startup_browser_creator\.cc$", r"^chrome[\\/]browser[\\/]browser_switcher[\\/]bho[\\/].*", r"^chrome[\\/]browser[\\/]diagnostics[\\/]" + r"diagnostics_writer\.cc$", r"^chrome[\\/]chrome_cleaner[\\/].*", r"^chrome[\\/]chrome_elf[\\/]dll_hash[\\/]" + r"dll_hash_main\.cc$", r"^chrome[\\/]installer[\\/]setup[\\/].*", r"^chromecast[\\/]", r"^components[\\/]browser_watcher[\\/]" r"dump_stability_report_main_win\.cc$", r"^components[\\/]media_control[\\/]renderer[\\/]" r"media_playback_options\.cc$", r"^components[\\/]viz[\\/]service[\\/]display[\\/]" r"overlay_strategy_underlay_cast\.cc$", r"^components[\\/]zucchini[\\/].*", # TODO(peter): Remove exception. https://crbug.com/534537 r"^content[\\/]browser[\\/]notifications[\\/]" r"notification_event_dispatcher_impl\.cc$", r"^content[\\/]common[\\/]gpu[\\/]client[\\/]" r"gl_helper_benchmark\.cc$", r"^courgette[\\/]courgette_minimal_tool\.cc$", r"^courgette[\\/]courgette_tool\.cc$", r"^extensions[\\/]renderer[\\/]logging_native_handler\.cc$", r"^fuchsia_web[\\/]common[\\/]init_logging\.cc$", r"^fuchsia_web[\\/]runners[\\/]common[\\/]web_component\.cc$", r"^fuchsia_web[\\/]shell[\\/].*_shell\.cc$", r"^headless[\\/]app[\\/]headless_shell\.cc$", r"^ipc[\\/]ipc_logging\.cc$", r"^native_client_sdk[\\/]", r"^remoting[\\/]base[\\/]logging\.h$", r"^remoting[\\/]host[\\/].*", r"^sandbox[\\/]linux[\\/].*", r"^storage[\\/]browser[\\/]file_system[\\/]" + r"dump_file_system\.cc$", r"^tools[\\/]", r"^ui[\\/]base[\\/]resource[\\/]data_pack\.cc$", r"^ui[\\/]aura[\\/]bench[\\/]bench_main\.cc$", r"^ui[\\/]ozone[\\/]platform[\\/]cast[\\/]", r"^ui[\\/]base[\\/]x[\\/]xwmstartupcheck[\\/]" r"xwmstartupcheck\.cc$")) source_file_filter = lambda x: input_api.FilterSourceFile( x, files_to_check=file_inclusion_pattern, files_to_skip=files_to_skip) log_info = set([]) printf = set([]) for f in input_api.AffectedSourceFiles(source_file_filter): for _, line in f.ChangedContents(): if input_api.re.search(r"\bD?LOG\s*\(\s*INFO\s*\)", line): log_info.add(f.LocalPath()) elif input_api.re.search(r"\bD?LOG_IF\s*\(\s*INFO\s*,", line): log_info.add(f.LocalPath()) if input_api.re.search(r"\bprintf\(", line): printf.add(f.LocalPath()) elif input_api.re.search(r"\bfprintf\((stdout|stderr)", line): printf.add(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 CheckForAnonymousVariables(input_api, output_api): """These types are all expected to hold locks while in scope and so should never be anonymous (which causes them to be immediately destroyed).""" they_who_must_be_named = [ 'base::AutoLock', 'base::AutoReset', 'base::AutoUnlock', 'SkAutoAlphaRestore', 'SkAutoBitmapShaderInstall', 'SkAutoBlitterChoose', 'SkAutoBounderCommit', 'SkAutoCallProc', 'SkAutoCanvasRestore', 'SkAutoCommentBlock', 'SkAutoDescriptor', 'SkAutoDisableDirectionCheck', 'SkAutoDisableOvalCheck', 'SkAutoFree', 'SkAutoGlyphCache', 'SkAutoHDC', 'SkAutoLockColors', 'SkAutoLockPixels', 'SkAutoMalloc', 'SkAutoMaskFreeImage', 'SkAutoMutexAcquire', 'SkAutoPathBoundsUpdate', 'SkAutoPDFRelease', 'SkAutoRasterClipValidate', 'SkAutoRef', 'SkAutoTime', 'SkAutoTrace', 'SkAutoUnref', ] anonymous = r'(%s)\s*[({]' % '|'.join(they_who_must_be_named) # bad: base::AutoLock(lock.get()); # not bad: base::AutoLock lock(lock.get()); bad_pattern = input_api.re.compile(anonymous) # good: new base::AutoLock(lock.get()) good_pattern = input_api.re.compile(r'\bnew\s*' + anonymous) errors = [] for f in input_api.AffectedFiles(): if not f.LocalPath().endswith(('.cc', '.h', '.inl', '.m', '.mm')): continue for linenum, line in f.ChangedContents(): if bad_pattern.search(line) and not good_pattern.search(line): errors.append('%s:%d' % (f.LocalPath(), linenum)) if errors: return [ output_api.PresubmitError( 'These lines create anonymous variables that need to be named:', items=errors) ] return [] def CheckUniquePtrOnUpload(input_api, output_api): # Returns whether |template_str| is of the form for some types T # and U. Assumes that |template_str| is already in the form <...>. def HasMoreThanOneArg(template_str): # Level of <...> nesting. nesting = 0 for c in template_str: if c == '<': nesting += 1 elif c == '>': nesting -= 1 elif c == ',' and nesting == 1: return True return False file_inclusion_pattern = [r'.+%s' % _IMPLEMENTATION_EXTENSIONS] sources = lambda affected_file: input_api.FilterSourceFile( affected_file, files_to_skip=(_EXCLUDED_PATHS + _TEST_CODE_EXCLUDED_PATHS + input_api. DEFAULT_FILES_TO_SKIP), files_to_check=file_inclusion_pattern) # Pattern to capture a single "<...>" block of template arguments. It can # handle linearly nested blocks, such as ">>", but # cannot handle branching structures, such as ",set>". The # latter would likely require counting that < and > match, which is not # expressible in regular languages. Should the need arise, one can introduce # limited counting (matching up to a total number of nesting depth), which # should cover all practical cases for already a low nesting limit. template_arg_pattern = ( r'<[^>]*' # Opening block of <. r'>([^<]*>)?') # Closing block of >. # Prefix expressing that whatever follows is not already inside a <...> # block. not_inside_template_arg_pattern = r'(^|[^<,\s]\s*)' null_construct_pattern = input_api.re.compile( not_inside_template_arg_pattern + r'\bstd::unique_ptr' + template_arg_pattern + r'\(\)') # Same as template_arg_pattern, but excluding type arrays, e.g., . template_arg_no_array_pattern = ( r'<[^>]*[^]]' # Opening block of <. r'>([^(<]*[^]]>)?') # Closing block of >. # Prefix saying that what follows is the start of an expression. start_of_expr_pattern = r'(=|\breturn|^)\s*' # Suffix saying that what follows are call parentheses with a non-empty list # of arguments. nonempty_arg_list_pattern = r'\(([^)]|$)' # Put the template argument into a capture group for deeper examination later. return_construct_pattern = input_api.re.compile( start_of_expr_pattern + r'std::unique_ptr' + '(?P' + template_arg_no_array_pattern + ')' + nonempty_arg_list_pattern) problems_constructor = [] problems_nullptr = [] for f in input_api.AffectedSourceFiles(sources): for line_number, line in f.ChangedContents(): # Disallow: # return std::unique_ptr(foo); # bar = std::unique_ptr(foo); # But allow: # return std::unique_ptr(foo); # bar = std::unique_ptr(foo); # And also allow cases when the second template argument is present. Those # cases cannot be handled by std::make_unique: # return std::unique_ptr(foo); # bar = std::unique_ptr(foo); local_path = f.LocalPath() return_construct_result = return_construct_pattern.search(line) if return_construct_result and not HasMoreThanOneArg( return_construct_result.group('template_arg')): problems_constructor.append( '%s:%d\n %s' % (local_path, line_number, line.strip())) # Disallow: # std::unique_ptr() if null_construct_pattern.search(line): problems_nullptr.append( '%s:%d\n %s' % (local_path, line_number, line.strip())) errors = [] if problems_nullptr: errors.append( output_api.PresubmitPromptWarning( 'The following files use std::unique_ptr(). Use nullptr instead.', problems_nullptr)) if problems_constructor: errors.append( output_api.PresubmitError( 'The following files use explicit std::unique_ptr constructor. ' 'Use std::make_unique() instead, or use base::WrapUnique if ' 'std::make_unique is not an option.', problems_constructor)) return errors def CheckUserActionUpdate(input_api, output_api): """Checks if any new user action has been added.""" if any('actions.xml' == input_api.os_path.basename(f) for f in input_api.LocalPaths()): # If actions.xml is already included in the changelist, the PRESUBMIT # for actions.xml will do a more complete presubmit check. return [] file_inclusion_pattern = [r'.*\.(cc|mm)$'] files_to_skip = (_EXCLUDED_PATHS + _TEST_CODE_EXCLUDED_PATHS + input_api.DEFAULT_FILES_TO_SKIP) file_filter = lambda f: input_api.FilterSourceFile( f, files_to_check=file_inclusion_pattern, files_to_skip=files_to_skip) action_re = r'[^a-zA-Z]UserMetricsAction\("([^"]*)' current_actions = None for f in input_api.AffectedFiles(file_filter=file_filter): for line_num, line in f.ChangedContents(): match = input_api.re.search(action_re, line) if match: # Loads contents in tools/metrics/actions/actions.xml to memory. It's # loaded only once. if not current_actions: with open( 'tools/metrics/actions/actions.xml') as actions_f: current_actions = actions_f.read() # Search for the matched user action name in |current_actions|. for action_name in match.groups(): action = 'name="{0}"'.format(action_name) if action not in current_actions: return [ output_api.PresubmitPromptWarning( 'File %s line %d: %s is missing in ' 'tools/metrics/actions/actions.xml. Please run ' 'tools/metrics/actions/extract_actions.py to update.' % (f.LocalPath(), line_num, action_name)) ] return [] def _ImportJSONCommentEater(input_api): import sys sys.path = sys.path + [ input_api.os_path.join(input_api.PresubmitLocalPath(), 'tools', 'json_comment_eater') ] import json_comment_eater return json_comment_eater def _GetJSONParseError(input_api, filename, eat_comments=True): try: contents = input_api.ReadFile(filename) if eat_comments: json_comment_eater = _ImportJSONCommentEater(input_api) contents = json_comment_eater.Nom(contents) input_api.json.loads(contents) except ValueError as e: return e return None def _GetIDLParseError(input_api, filename): try: contents = input_api.ReadFile(filename) for i, char in enumerate(contents): if not char.isascii(): return ( 'Non-ascii character "%s" (ord %d) found at offset %d.' % (char, ord(char), i)) idl_schema = input_api.os_path.join(input_api.PresubmitLocalPath(), 'tools', 'json_schema_compiler', 'idl_schema.py') process = input_api.subprocess.Popen( [input_api.python3_executable, idl_schema], stdin=input_api.subprocess.PIPE, stdout=input_api.subprocess.PIPE, stderr=input_api.subprocess.PIPE, universal_newlines=True) (_, error) = process.communicate(input=contents) return error or None except ValueError as e: return e def CheckParseErrors(input_api, output_api): """Check that IDL and JSON files do not contain syntax errors.""" actions = { '.idl': _GetIDLParseError, '.json': _GetJSONParseError, } # Most JSON files are preprocessed and support comments, but these do not. json_no_comments_patterns = [ r'^testing[\\/]', ] # Only run IDL checker on files in these directories. idl_included_patterns = [ r'^chrome[\\/]common[\\/]extensions[\\/]api[\\/]', r'^extensions[\\/]common[\\/]api[\\/]', ] def get_action(affected_file): filename = affected_file.LocalPath() return actions.get(input_api.os_path.splitext(filename)[1]) def FilterFile(affected_file): action = get_action(affected_file) if not action: return False path = affected_file.LocalPath() if _MatchesFile(input_api, _KNOWN_TEST_DATA_AND_INVALID_JSON_FILE_PATTERNS, path): return False if (action == _GetIDLParseError and not _MatchesFile(input_api, idl_included_patterns, path)): return False return True results = [] for affected_file in input_api.AffectedFiles(file_filter=FilterFile, include_deletes=False): action = get_action(affected_file) kwargs = {} if (action == _GetJSONParseError and _MatchesFile(input_api, json_no_comments_patterns, affected_file.LocalPath())): kwargs['eat_comments'] = False parse_error = action(input_api, affected_file.AbsoluteLocalPath(), **kwargs) if parse_error: results.append( output_api.PresubmitError( '%s could not be parsed: %s' % (affected_file.LocalPath(), parse_error))) return results def CheckJavaStyle(input_api, output_api): """Runs checkstyle on changed java files and returns errors if any exist.""" # Return early if no java files were modified. if not any( _IsJavaFile(input_api, f.LocalPath()) for f in input_api.AffectedFiles()): return [] import sys original_sys_path = sys.path try: sys.path = sys.path + [ input_api.os_path.join(input_api.PresubmitLocalPath(), 'tools', 'android', 'checkstyle') ] import checkstyle finally: # Restore sys.path to what it was before. sys.path = original_sys_path return checkstyle.RunCheckstyle( input_api, output_api, 'tools/android/checkstyle/chromium-style-5.0.xml', files_to_skip=_EXCLUDED_PATHS + input_api.DEFAULT_FILES_TO_SKIP) def CheckPythonDevilInit(input_api, output_api): """Checks to make sure devil is initialized correctly in python scripts.""" script_common_initialize_pattern = input_api.re.compile( r'script_common\.InitializeEnvironment\(') devil_env_config_initialize = input_api.re.compile( r'devil_env\.config\.Initialize\(') errors = [] sources = lambda affected_file: input_api.FilterSourceFile( affected_file, files_to_skip=(_EXCLUDED_PATHS + input_api.DEFAULT_FILES_TO_SKIP + ( r'^build[\\/]android[\\/]devil_chromium\.py', r'^third_party[\\/].*', )), files_to_check=[r'.*\.py$']) for f in input_api.AffectedSourceFiles(sources): for line_num, line in f.ChangedContents(): if (script_common_initialize_pattern.search(line) or devil_env_config_initialize.search(line)): errors.append("%s:%d" % (f.LocalPath(), line_num)) results = [] if errors: results.append( output_api.PresubmitError( 'Devil initialization should always be done using ' 'devil_chromium.Initialize() in the chromium project, to use better ' 'defaults for dependencies (ex. up-to-date version of adb).', errors)) return results def _MatchesFile(input_api, patterns, path): for pattern in patterns: if input_api.re.search(pattern, path): return True return False def _ChangeHasSecurityReviewer(input_api, owners_file): """Returns True iff the CL has a reviewer from SECURITY_OWNERS. Args: input_api: The presubmit input API. owners_file: OWNERS file with required reviewers. Typically, this is something like ipc/SECURITY_OWNERS. Note: if the presubmit is running for commit rather than for upload, this only returns True if a security reviewer has also approved the CL. """ # Owners-Override should bypass all additional OWNERS enforcement checks. # A CR+1 vote will still be required to land this change. if (input_api.change.issue and input_api.gerrit.IsOwnersOverrideApproved( input_api.change.issue)): return True owner_email, reviewers = ( input_api.canned_checks.GetCodereviewOwnerAndReviewers( input_api, None, approval_needed=input_api.is_committing and not input_api.dry_run)) security_owners = input_api.owners_client.ListOwners(owners_file) return any(owner in reviewers for owner in security_owners) @dataclass class _SecurityProblemWithItems: problem: str items: Sequence[str] @dataclass class _MissingSecurityOwnersResult: owners_file_problems: Sequence[_SecurityProblemWithItems] has_security_sensitive_files: bool missing_reviewer_problem: Optional[_SecurityProblemWithItems] def _FindMissingSecurityOwners(input_api, output_api, file_patterns: Sequence[str], excluded_patterns: Sequence[str], required_owners_file: str, custom_rule_function: Optional[Callable] = None ) -> _MissingSecurityOwnersResult: """Find OWNERS files missing per-file rules for security-sensitive files. Args: input_api: the PRESUBMIT input API object. output_api: the PRESUBMIT output API object. file_patterns: basename patterns that require a corresponding per-file security restriction. excluded_patterns: path patterns that should be exempted from requiring a security restriction. required_owners_file: path to the required OWNERS file, e.g. ipc/SECURITY_OWNERS cc_alias: If not None, email that will be CCed automatically if the change contains security-sensitive files, as determined by `file_patterns` and `excluded_patterns`. custom_rule_function: If not None, will be called with `input_api` and the current file under consideration. Returning True will add an exact match per-file rule check for the current file. """ # `to_check` is a mapping of an OWNERS file path to Patterns. # # Patterns is a dictionary mapping glob patterns (suitable for use in # per-file rules) to a PatternEntry. # # PatternEntry is a dictionary with two keys: # - 'files': the files that are matched by this pattern # - 'rules': the per-file rules needed for this pattern # # For example, if we expect OWNERS file to contain rules for *.mojom and # *_struct_traits*.*, Patterns might look like this: # { # '*.mojom': { # 'files': ..., # 'rules': [ # 'per-file *.mojom=set noparent', # 'per-file *.mojom=file://ipc/SECURITY_OWNERS', # ], # }, # '*_struct_traits*.*': { # 'files': ..., # 'rules': [ # 'per-file *_struct_traits*.*=set noparent', # 'per-file *_struct_traits*.*=file://ipc/SECURITY_OWNERS', # ], # }, # } to_check = {} files_to_review = [] def AddPatternToCheck(file, pattern): owners_file = input_api.os_path.join( input_api.os_path.dirname(file.LocalPath()), 'OWNERS') if owners_file not in to_check: to_check[owners_file] = {} if pattern not in to_check[owners_file]: to_check[owners_file][pattern] = { 'files': [], 'rules': [ f'per-file {pattern}=set noparent', f'per-file {pattern}=file://{required_owners_file}', ] } to_check[owners_file][pattern]['files'].append(file.LocalPath()) files_to_review.append(file.LocalPath()) # Only enforce security OWNERS rules for a directory if that directory has a # file that matches `file_patterns`. For example, if a directory only # contains *.mojom files and no *_messages*.h files, the check should only # ensure that rules for *.mojom files are present. for file in input_api.AffectedFiles(include_deletes=False): file_basename = input_api.os_path.basename(file.LocalPath()) if custom_rule_function is not None and custom_rule_function( input_api, file): AddPatternToCheck(file, file_basename) continue if any( input_api.fnmatch.fnmatch(file.LocalPath(), pattern) for pattern in excluded_patterns): continue for pattern in file_patterns: # Unlike `excluded_patterns`, `file_patterns` is checked only against the # file's basename. if input_api.fnmatch.fnmatch(file_basename, pattern): AddPatternToCheck(file, pattern) break has_security_sensitive_files = bool(to_check) # Check if any newly added lines in OWNERS files intersect with required # per-file OWNERS lines. If so, ensure that a security reviewer is included. # This is a hack, but is needed because the OWNERS check (by design) ignores # new OWNERS entries; otherwise, a non-owner could add someone as a new # OWNER and have that newly-added OWNER self-approve their own addition. newly_covered_files = [] for file in input_api.AffectedFiles(include_deletes=False): if not file.LocalPath() in to_check: continue for _, line in file.ChangedContents(): for _, entry in to_check[file.LocalPath()].items(): if line in entry['rules']: newly_covered_files.extend(entry['files']) missing_reviewer_problems = None if newly_covered_files and not _ChangeHasSecurityReviewer( input_api, required_owners_file): missing_reviewer_problems = _SecurityProblemWithItems( f'Review from an owner in {required_owners_file} is required for ' 'the following newly-added files:', [f'{file}' for file in sorted(set(newly_covered_files))]) # Go through the OWNERS files to check, filtering out rules that are already # present in that OWNERS file. for owners_file, patterns in to_check.items(): try: lines = set( input_api.ReadFile( input_api.os_path.join(input_api.change.RepositoryRoot(), owners_file)).splitlines()) for entry in patterns.values(): entry['rules'] = [ rule for rule in entry['rules'] if rule not in lines ] except IOError: # No OWNERS file, so all the rules are definitely missing. continue # All the remaining lines weren't found in OWNERS files, so emit an error. owners_file_problems = [] for owners_file, patterns in to_check.items(): missing_lines = [] files = [] for _, entry in patterns.items(): files.extend(entry['files']) missing_lines.extend(entry['rules']) if missing_lines: joined_missing_lines = '\n'.join(line for line in missing_lines) owners_file_problems.append( _SecurityProblemWithItems( 'Found missing OWNERS lines for security-sensitive files. ' f'Please add the following lines to {owners_file}:\n' f'{joined_missing_lines}\n\nTo ensure security review for:', files)) return _MissingSecurityOwnersResult(owners_file_problems, has_security_sensitive_files, missing_reviewer_problems) def _CheckChangeForIpcSecurityOwners(input_api, output_api): # Whether or not a file affects IPC is (mostly) determined by a simple list # of filename patterns. file_patterns = [ # Legacy IPC: '*_messages.cc', '*_messages*.h', '*_param_traits*.*', # Mojo IPC: '*.mojom', '*_mojom_traits*.*', '*_type_converter*.*', # Android native IPC: '*.aidl', ] excluded_patterns = [ # These third_party directories do not contain IPCs, but contain files # matching the above patterns, which trigger false positives. 'third_party/crashpad/*', 'third_party/blink/renderer/platform/bindings/*', 'third_party/protobuf/benchmarks/python/*', 'third_party/win_build_output/*', # Enum-only mojoms used for web metrics, so no security review needed. 'third_party/blink/public/mojom/use_counter/metrics/*', # These files are just used to communicate between class loaders running # in the same process. 'weblayer/browser/java/org/chromium/weblayer_private/interfaces/*', 'weblayer/browser/java/org/chromium/weblayer_private/test_interfaces/*', ] def IsMojoServiceManifestFile(input_api, file): manifest_pattern = input_api.re.compile('manifests?\.(cc|h)$') test_manifest_pattern = input_api.re.compile('test_manifests?\.(cc|h)') if not manifest_pattern.search(file.LocalPath()): return False if test_manifest_pattern.search(file.LocalPath()): return False # All actual service manifest files should contain at least one # qualified reference to service_manager::Manifest. return any('service_manager::Manifest' in line for line in file.NewContents()) return _FindMissingSecurityOwners( input_api, output_api, file_patterns, excluded_patterns, 'ipc/SECURITY_OWNERS', custom_rule_function=IsMojoServiceManifestFile) def _CheckChangeForFuchsiaSecurityOwners(input_api, output_api): file_patterns = [ # Component specifications. '*.cml', # Component Framework v2. '*.cmx', # Component Framework v1. # Fuchsia IDL protocol specifications. '*.fidl', ] # Don't check for owners files for changes in these directories. excluded_patterns = [ 'third_party/crashpad/*', ] return _FindMissingSecurityOwners(input_api, output_api, file_patterns, excluded_patterns, 'build/fuchsia/SECURITY_OWNERS') def CheckSecurityOwners(input_api, output_api): """Checks that various security-sensitive files have an IPC OWNERS rule.""" ipc_results = _CheckChangeForIpcSecurityOwners(input_api, output_api) fuchsia_results = _CheckChangeForFuchsiaSecurityOwners( input_api, output_api) if ipc_results.has_security_sensitive_files: output_api.AppendCC('ipc-security-reviews@chromium.org') results = [] missing_reviewer_problems = [] if ipc_results.missing_reviewer_problem: missing_reviewer_problems.append(ipc_results.missing_reviewer_problem) if fuchsia_results.missing_reviewer_problem: missing_reviewer_problems.append( fuchsia_results.missing_reviewer_problem) # Missing reviewers are an error unless there's no issue number # associated with this branch; in that case, the presubmit is being run # with --all or --files. # # Note that upload should never be an error; otherwise, it would be # impossible to upload changes at all. if input_api.is_committing and input_api.change.issue: make_presubmit_message = output_api.PresubmitError else: make_presubmit_message = output_api.PresubmitNotifyResult for problem in missing_reviewer_problems: results.append( make_presubmit_message(problem.problem, items=problem.items)) owners_file_problems = [] owners_file_problems.extend(ipc_results.owners_file_problems) owners_file_problems.extend(fuchsia_results.owners_file_problems) for problem in owners_file_problems: # Missing per-file rules are always an error. While swarming and caching # means that uploading a patchset with updated OWNERS files and sending # it to the CQ again should not have a large incremental cost, it is # still frustrating to discover the error only after the change has # already been uploaded. results.append( output_api.PresubmitError(problem.problem, items=problem.items)) return results def _GetFilesUsingSecurityCriticalFunctions(input_api): """Checks affected files for changes to security-critical calls. This function checks the full change diff, to catch both additions/changes and removals. Returns a dict keyed by file name, and the value is a set of detected functions. """ # Map of function pretty name (displayed in an error) to the pattern to # match it with. _PATTERNS_TO_CHECK = { 'content::GetServiceSandboxType<>()': 'GetServiceSandboxType\\<' } _PATTERNS_TO_CHECK = { k: input_api.re.compile(v) for k, v in _PATTERNS_TO_CHECK.items() } # We don't want to trigger on strings within this file. def presubmit_file_filter(f): return 'PRESUBMIT.py' != input_api.os_path.split(f.LocalPath())[1] # Scan all affected files for changes touching _FUNCTIONS_TO_CHECK. files_to_functions = {} for f in input_api.AffectedFiles(file_filter=presubmit_file_filter): diff = f.GenerateScmDiff() for line in diff.split('\n'): # Not using just RightHandSideLines() because removing a # call to a security-critical function can be just as important # as adding or changing the arguments. if line.startswith('-') or (line.startswith('+') and not line.startswith('++')): for name, pattern in _PATTERNS_TO_CHECK.items(): if pattern.search(line): path = f.LocalPath() if not path in files_to_functions: files_to_functions[path] = set() files_to_functions[path].add(name) return files_to_functions def CheckSecurityChanges(input_api, output_api): """Checks that changes involving security-critical functions are reviewed by the security team. """ files_to_functions = _GetFilesUsingSecurityCriticalFunctions(input_api) if not len(files_to_functions): return [] owners_file = 'ipc/SECURITY_OWNERS' if _ChangeHasSecurityReviewer(input_api, owners_file): return [] msg = 'The following files change calls to security-sensitive functions\n' \ 'that need to be reviewed by {}.\n'.format(owners_file) for path, names in files_to_functions.items(): msg += ' {}\n'.format(path) for name in names: msg += ' {}\n'.format(name) msg += '\n' if input_api.is_committing: output = output_api.PresubmitError else: output = output_api.PresubmitNotifyResult return [output(msg)] def CheckSetNoParent(input_api, output_api): """Checks that set noparent is only used together with an OWNERS file in //build/OWNERS.setnoparent (see also //docs/code_reviews.md#owners-files-details) """ # Return early if no OWNERS files were modified. if not any(f.LocalPath().endswith('OWNERS') for f in input_api.AffectedFiles(include_deletes=False)): return [] errors = [] allowed_owners_files_file = 'build/OWNERS.setnoparent' allowed_owners_files = set() with open(allowed_owners_files_file, 'r') as f: for line in f: line = line.strip() if not line or line.startswith('#'): continue allowed_owners_files.add(line) per_file_pattern = input_api.re.compile('per-file (.+)=(.+)') for f in input_api.AffectedFiles(include_deletes=False): if not f.LocalPath().endswith('OWNERS'): continue found_owners_files = set() found_set_noparent_lines = dict() # Parse the OWNERS file. for lineno, line in enumerate(f.NewContents(), 1): line = line.strip() if line.startswith('set noparent'): found_set_noparent_lines[''] = lineno if line.startswith('file://'): if line in allowed_owners_files: found_owners_files.add('') if line.startswith('per-file'): match = per_file_pattern.match(line) if match: glob = match.group(1).strip() directive = match.group(2).strip() if directive == 'set noparent': found_set_noparent_lines[glob] = lineno if directive.startswith('file://'): if directive in allowed_owners_files: found_owners_files.add(glob) # Check that every set noparent line has a corresponding file:// line # listed in build/OWNERS.setnoparent. An exception is made for top level # directories since src/OWNERS shouldn't review them. linux_path = f.LocalPath().replace(input_api.os_path.sep, '/') if (linux_path.count('/') != 1 and (not linux_path in _EXCLUDED_SET_NO_PARENT_PATHS)): for set_noparent_line in found_set_noparent_lines: if set_noparent_line in found_owners_files: continue errors.append(' %s:%d' % (linux_path, found_set_noparent_lines[set_noparent_line])) results = [] if errors: if input_api.is_committing: output = output_api.PresubmitError else: output = output_api.PresubmitPromptWarning results.append( output( 'Found the following "set noparent" restrictions in OWNERS files that ' 'do not include owners from build/OWNERS.setnoparent:', long_text='\n\n'.join(errors))) return results def CheckUselessForwardDeclarations(input_api, output_api): """Checks that added or removed lines in non third party affected header files do not lead to new useless class or struct forward declaration. """ results = [] class_pattern = input_api.re.compile(r'^class\s+(\w+);$', input_api.re.MULTILINE) struct_pattern = input_api.re.compile(r'^struct\s+(\w+);$', input_api.re.MULTILINE) for f in input_api.AffectedFiles(include_deletes=False): if (f.LocalPath().startswith('third_party') and not f.LocalPath().startswith('third_party/blink') and not f.LocalPath().startswith('third_party\\blink')): continue if not f.LocalPath().endswith('.h'): continue contents = input_api.ReadFile(f) fwd_decls = input_api.re.findall(class_pattern, contents) fwd_decls.extend(input_api.re.findall(struct_pattern, contents)) useless_fwd_decls = [] for decl in fwd_decls: count = sum(1 for _ in input_api.re.finditer( r'\b%s\b' % input_api.re.escape(decl), contents)) if count == 1: useless_fwd_decls.append(decl) if not useless_fwd_decls: continue for line in f.GenerateScmDiff().splitlines(): if (line.startswith('-') and not line.startswith('--') or line.startswith('+') and not line.startswith('++')): for decl in useless_fwd_decls: if input_api.re.search(r'\b%s\b' % decl, line[1:]): results.append( output_api.PresubmitPromptWarning( '%s: %s forward declaration is no longer needed' % (f.LocalPath(), decl))) useless_fwd_decls.remove(decl) return results def _CheckAndroidDebuggableBuild(input_api, output_api): """Checks that code uses BuildInfo.isDebugAndroid() instead of Build.TYPE.equals('') or ''.equals(Build.TYPE) to check if this is a debuggable build of Android. """ build_type_check_pattern = input_api.re.compile( r'\bBuild\.TYPE\.equals\(|\.equals\(\s*\bBuild\.TYPE\)') errors = [] sources = lambda affected_file: input_api.FilterSourceFile( affected_file, files_to_skip=( _EXCLUDED_PATHS + _TEST_CODE_EXCLUDED_PATHS + input_api. DEFAULT_FILES_TO_SKIP + ( r"^android_webview[\\/]support_library[\\/]" "boundary_interfaces[\\/]", r"^chrome[\\/]android[\\/]webapk[\\/].*", r'^third_party[\\/].*', r"tools[\\/]android[\\/]customtabs_benchmark[\\/].*", r"webview[\\/]chromium[\\/]License.*", )), files_to_check=[r'.*\.java$']) for f in input_api.AffectedSourceFiles(sources): for line_num, line in f.ChangedContents(): if build_type_check_pattern.search(line): errors.append("%s:%d" % (f.LocalPath(), line_num)) results = [] if errors: results.append( output_api.PresubmitPromptWarning( 'Build.TYPE.equals or .equals(Build.TYPE) usage is detected.' ' Please use BuildInfo.isDebugAndroid() instead.', errors)) return results # TODO: add unit tests def _CheckAndroidToastUsage(input_api, output_api): """Checks that code uses org.chromium.ui.widget.Toast instead of android.widget.Toast (Chromium Toast doesn't force hardware acceleration on low-end devices, saving memory). """ toast_import_pattern = input_api.re.compile( r'^import android\.widget\.Toast;$') errors = [] sources = lambda affected_file: input_api.FilterSourceFile( affected_file, files_to_skip=(_EXCLUDED_PATHS + _TEST_CODE_EXCLUDED_PATHS + input_api. DEFAULT_FILES_TO_SKIP + (r'^chromecast[\\/].*', r'^remoting[\\/].*')), files_to_check=[r'.*\.java$']) for f in input_api.AffectedSourceFiles(sources): for line_num, line in f.ChangedContents(): if toast_import_pattern.search(line): errors.append("%s:%d" % (f.LocalPath(), line_num)) results = [] if errors: results.append( output_api.PresubmitError( 'android.widget.Toast usage is detected. Android toasts use hardware' ' acceleration, and can be\ncostly on low-end devices. Please use' ' org.chromium.ui.widget.Toast instead.\n' 'Contact dskiba@chromium.org if you have any questions.', errors)) return results def _CheckAndroidCrLogUsage(input_api, output_api): """Checks that new logs using org.chromium.base.Log: - Are using 'TAG' as variable name for the tags (warn) - Are using a tag that is shorter than 20 characters (error) """ # Do not check format of logs in the given files cr_log_check_excluded_paths = [ # //chrome/android/webapk cannot depend on //base r"^chrome[\\/]android[\\/]webapk[\\/].*", # WebView license viewer code cannot depend on //base; used in stub APK. r"^android_webview[\\/]glue[\\/]java[\\/]src[\\/]com[\\/]android[\\/]" r"webview[\\/]chromium[\\/]License.*", # The customtabs_benchmark is a small app that does not depend on Chromium # java pieces. r"tools[\\/]android[\\/]customtabs_benchmark[\\/].*", ] cr_log_import_pattern = input_api.re.compile( r'^import org\.chromium\.base\.Log;$', input_api.re.MULTILINE) class_in_base_pattern = input_api.re.compile( r'^package org\.chromium\.base;$', input_api.re.MULTILINE) has_some_log_import_pattern = input_api.re.compile(r'^import .*\.Log;$', input_api.re.MULTILINE) # Extract the tag from lines like `Log.d(TAG, "*");` or `Log.d("TAG", "*");` log_call_pattern = input_api.re.compile(r'\bLog\.\w\((?P\"?\w+)') log_decl_pattern = input_api.re.compile( r'static final String TAG = "(?P(.*))"') rough_log_decl_pattern = input_api.re.compile(r'\bString TAG\s*=') REF_MSG = ('See docs/android_logging.md for more info.') sources = lambda x: input_api.FilterSourceFile( x, files_to_check=[r'.*\.java$'], files_to_skip=cr_log_check_excluded_paths) tag_decl_errors = [] tag_length_errors = [] tag_errors = [] tag_with_dot_errors = [] util_log_errors = [] for f in input_api.AffectedSourceFiles(sources): file_content = input_api.ReadFile(f) has_modified_logs = False # Per line checks if (cr_log_import_pattern.search(file_content) or (class_in_base_pattern.search(file_content) and not has_some_log_import_pattern.search(file_content))): # Checks to run for files using cr log for line_num, line in f.ChangedContents(): if rough_log_decl_pattern.search(line): has_modified_logs = True # Check if the new line is doing some logging match = log_call_pattern.search(line) if match: has_modified_logs = True # Make sure it uses "TAG" if not match.group('tag') == 'TAG': tag_errors.append("%s:%d" % (f.LocalPath(), line_num)) else: # Report non cr Log function calls in changed lines for line_num, line in f.ChangedContents(): if log_call_pattern.search(line): util_log_errors.append("%s:%d" % (f.LocalPath(), line_num)) # Per file checks if has_modified_logs: # Make sure the tag is using the "cr" prefix and is not too long match = log_decl_pattern.search(file_content) tag_name = match.group('name') if match else None if not tag_name: tag_decl_errors.append(f.LocalPath()) elif len(tag_name) > 20: tag_length_errors.append(f.LocalPath()) elif '.' in tag_name: tag_with_dot_errors.append(f.LocalPath()) results = [] if tag_decl_errors: results.append( output_api.PresubmitPromptWarning( 'Please define your tags using the suggested format: .\n' '"private static final String TAG = "".\n' 'They will be prepended with "cr_" automatically.\n' + REF_MSG, tag_decl_errors)) if tag_length_errors: results.append( output_api.PresubmitError( 'The tag length is restricted by the system to be at most ' '20 characters.\n' + REF_MSG, tag_length_errors)) if tag_errors: results.append( output_api.PresubmitPromptWarning( 'Please use a variable named "TAG" for your log tags.\n' + REF_MSG, tag_errors)) if util_log_errors: results.append( output_api.PresubmitPromptWarning( 'Please use org.chromium.base.Log for new logs.\n' + REF_MSG, util_log_errors)) if tag_with_dot_errors: results.append( output_api.PresubmitPromptWarning( 'Dot in log tags cause them to be elided in crash reports.\n' + REF_MSG, tag_with_dot_errors)) return results def _CheckAndroidTestJUnitFrameworkImport(input_api, output_api): """Checks that junit.framework.* is no longer used.""" deprecated_junit_framework_pattern = input_api.re.compile( r'^import junit\.framework\..*;', input_api.re.MULTILINE) sources = lambda x: input_api.FilterSourceFile( x, files_to_check=[r'.*\.java$'], files_to_skip=None) errors = [] for f in input_api.AffectedFiles(file_filter=sources): for line_num, line in f.ChangedContents(): if deprecated_junit_framework_pattern.search(line): errors.append("%s:%d" % (f.LocalPath(), line_num)) results = [] if errors: results.append( output_api.PresubmitError( 'APIs from junit.framework.* are deprecated, please use JUnit4 framework' '(org.junit.*) from //third_party/junit. Contact yolandyan@chromium.org' ' if you have any question.', errors)) return results def _CheckAndroidTestJUnitInheritance(input_api, output_api): """Checks that if new Java test classes have inheritance. Either the new test class is JUnit3 test or it is a JUnit4 test class with a base class, either case is undesirable. """ class_declaration_pattern = input_api.re.compile(r'^public class \w*Test ') sources = lambda x: input_api.FilterSourceFile( x, files_to_check=[r'.*Test\.java$'], files_to_skip=None) errors = [] for f in input_api.AffectedFiles(file_filter=sources): if not f.OldContents(): class_declaration_start_flag = False for line_num, line in f.ChangedContents(): if class_declaration_pattern.search(line): class_declaration_start_flag = True if class_declaration_start_flag and ' extends ' in line: errors.append('%s:%d' % (f.LocalPath(), line_num)) if '{' in line: class_declaration_start_flag = False results = [] if errors: results.append( output_api.PresubmitPromptWarning( 'The newly created files include Test classes that inherits from base' ' class. Please do not use inheritance in JUnit4 tests or add new' ' JUnit3 tests. Contact yolandyan@chromium.org if you have any' ' questions.', errors)) return results def _CheckAndroidTestAnnotationUsage(input_api, output_api): """Checks that android.test.suitebuilder.annotation.* is no longer used.""" deprecated_annotation_import_pattern = input_api.re.compile( r'^import android\.test\.suitebuilder\.annotation\..*;', input_api.re.MULTILINE) sources = lambda x: input_api.FilterSourceFile( x, files_to_check=[r'.*\.java$'], files_to_skip=None) errors = [] for f in input_api.AffectedFiles(file_filter=sources): for line_num, line in f.ChangedContents(): if deprecated_annotation_import_pattern.search(line): errors.append("%s:%d" % (f.LocalPath(), line_num)) results = [] if errors: results.append( output_api.PresubmitError( 'Annotations in android.test.suitebuilder.annotation have been' ' deprecated since API level 24. Please use android.support.test.filters' ' from //third_party/android_support_test_runner:runner_java instead.' ' Contact yolandyan@chromium.org if you have any questions.', errors)) return results def _CheckAndroidNewMdpiAssetLocation(input_api, output_api): """Checks if MDPI assets are placed in a correct directory.""" file_filter = lambda f: (f.LocalPath().endswith( '.png') and ('/res/drawable/'.replace('/', input_api.os_path.sep) in f. LocalPath() or '/res/drawable-ldrtl/'.replace( '/', input_api.os_path.sep) in f.LocalPath())) errors = [] for f in input_api.AffectedFiles(include_deletes=False, file_filter=file_filter): errors.append(' %s' % f.LocalPath()) results = [] if errors: results.append( output_api.PresubmitError( 'MDPI assets should be placed in /res/drawable-mdpi/ or ' '/res/drawable-ldrtl-mdpi/\ninstead of /res/drawable/ and' '/res/drawable-ldrtl/.\n' 'Contact newt@chromium.org if you have questions.', errors)) return results def _CheckAndroidWebkitImports(input_api, output_api): """Checks that code uses org.chromium.base.Callback instead of android.webview.ValueCallback except in the WebView glue layer and WebLayer. """ valuecallback_import_pattern = input_api.re.compile( r'^import android\.webkit\.ValueCallback;$') errors = [] sources = lambda affected_file: input_api.FilterSourceFile( affected_file, files_to_skip=(_EXCLUDED_PATHS + _TEST_CODE_EXCLUDED_PATHS + input_api. DEFAULT_FILES_TO_SKIP + ( r'^android_webview[\\/]glue[\\/].*', r'^weblayer[\\/].*', )), files_to_check=[r'.*\.java$']) for f in input_api.AffectedSourceFiles(sources): for line_num, line in f.ChangedContents(): if valuecallback_import_pattern.search(line): errors.append("%s:%d" % (f.LocalPath(), line_num)) results = [] if errors: results.append( output_api.PresubmitError( 'android.webkit.ValueCallback usage is detected outside of the glue' ' layer. To stay compatible with the support library, android.webkit.*' ' classes should only be used inside the glue layer and' ' org.chromium.base.Callback should be used instead.', errors)) return results def _CheckAndroidXmlStyle(input_api, output_api, is_check_on_upload): """Checks Android XML styles """ # Return early if no relevant files were modified. if not any( _IsXmlOrGrdFile(input_api, f.LocalPath()) for f in input_api.AffectedFiles(include_deletes=False)): return [] import sys original_sys_path = sys.path try: sys.path = sys.path + [ input_api.os_path.join(input_api.PresubmitLocalPath(), 'tools', 'android', 'checkxmlstyle') ] import checkxmlstyle finally: # Restore sys.path to what it was before. sys.path = original_sys_path if is_check_on_upload: return checkxmlstyle.CheckStyleOnUpload(input_api, output_api) else: return checkxmlstyle.CheckStyleOnCommit(input_api, output_api) def _CheckAndroidInfoBarDeprecation(input_api, output_api): """Checks Android Infobar Deprecation """ import sys original_sys_path = sys.path try: sys.path = sys.path + [ input_api.os_path.join(input_api.PresubmitLocalPath(), 'tools', 'android', 'infobar_deprecation') ] import infobar_deprecation finally: # Restore sys.path to what it was before. sys.path = original_sys_path return infobar_deprecation.CheckDeprecationOnUpload(input_api, output_api) class _PydepsCheckerResult: def __init__(self, cmd, pydeps_path, process, old_contents): self._cmd = cmd self._pydeps_path = pydeps_path self._process = process self._old_contents = old_contents def GetError(self): """Returns an error message, or None.""" import difflib if self._process.wait() != 0: # STDERR should already be printed. return 'Command failed: ' + self._cmd new_contents = self._process.stdout.read().splitlines()[2:] if self._old_contents != new_contents: diff = '\n'.join( difflib.context_diff(self._old_contents, new_contents)) return ('File is stale: {}\n' 'Diff (apply to fix):\n' '{}\n' 'To regenerate, run:\n\n' ' {}').format(self._pydeps_path, diff, self._cmd) return None class PydepsChecker: def __init__(self, input_api, pydeps_files): self._file_cache = {} self._input_api = input_api self._pydeps_files = pydeps_files def _LoadFile(self, path): """Returns the list of paths within a .pydeps file relative to //.""" if path not in self._file_cache: with open(path, encoding='utf-8') as f: self._file_cache[path] = f.read() return self._file_cache[path] def _ComputeNormalizedPydepsEntries(self, pydeps_path): """Returns an iterable of paths within the .pydep, relativized to //.""" pydeps_data = self._LoadFile(pydeps_path) uses_gn_paths = '--gn-paths' in pydeps_data entries = (l for l in pydeps_data.splitlines() if not l.startswith('#')) if uses_gn_paths: # Paths look like: //foo/bar/baz return (e[2:] for e in entries) else: # Paths look like: path/relative/to/file.pydeps os_path = self._input_api.os_path pydeps_dir = os_path.dirname(pydeps_path) return (os_path.normpath(os_path.join(pydeps_dir, e)) for e in entries) def _CreateFilesToPydepsMap(self): """Returns a map of local_path -> list_of_pydeps.""" ret = {} for pydep_local_path in self._pydeps_files: for path in self._ComputeNormalizedPydepsEntries(pydep_local_path): ret.setdefault(path, []).append(pydep_local_path) return ret def ComputeAffectedPydeps(self): """Returns an iterable of .pydeps files that might need regenerating.""" affected_pydeps = set() file_to_pydeps_map = None for f in self._input_api.AffectedFiles(include_deletes=True): local_path = f.LocalPath() # Changes to DEPS can lead to .pydeps changes if any .py files are in # subrepositories. We can't figure out which files change, so re-check # all files. # Changes to print_python_deps.py affect all .pydeps. if local_path in ('DEPS', 'PRESUBMIT.py' ) or local_path.endswith('print_python_deps.py'): return self._pydeps_files elif local_path.endswith('.pydeps'): if local_path in self._pydeps_files: affected_pydeps.add(local_path) elif local_path.endswith('.py'): if file_to_pydeps_map is None: file_to_pydeps_map = self._CreateFilesToPydepsMap() affected_pydeps.update(file_to_pydeps_map.get(local_path, ())) return affected_pydeps def DetermineIfStaleAsync(self, pydeps_path): """Runs print_python_deps.py to see if the files is stale.""" import os old_pydeps_data = self._LoadFile(pydeps_path).splitlines() if old_pydeps_data: cmd = old_pydeps_data[1][1:].strip() if '--output' not in cmd: cmd += ' --output ' + pydeps_path old_contents = old_pydeps_data[2:] else: # A default cmd that should work in most cases (as long as pydeps filename # matches the script name) so that PRESUBMIT.py does not crash if pydeps # file is empty/new. cmd = 'build/print_python_deps.py {} --root={} --output={}'.format( pydeps_path[:-4], os.path.dirname(pydeps_path), pydeps_path) old_contents = [] env = dict(os.environ) env['PYTHONDONTWRITEBYTECODE'] = '1' process = self._input_api.subprocess.Popen( cmd + ' --output ""', shell=True, env=env, stdout=self._input_api.subprocess.PIPE, encoding='utf-8') return _PydepsCheckerResult(cmd, pydeps_path, process, old_contents) def _ParseGclientArgs(): args = {} with open('build/config/gclient_args.gni', 'r') as f: for line in f: line = line.strip() if not line or line.startswith('#'): continue attribute, value = line.split('=') args[attribute.strip()] = value.strip() return args def CheckPydepsNeedsUpdating(input_api, output_api, checker_for_tests=None): """Checks if a .pydeps file needs to be regenerated.""" # This check is for Python dependency lists (.pydeps files), and involves # paths not only in the PRESUBMIT.py, but also in the .pydeps files. It # doesn't work on Windows and Mac, so skip it on other platforms. if not input_api.platform.startswith('linux'): return [] results = [] # First, check for new / deleted .pydeps. for f in input_api.AffectedFiles(include_deletes=True): # Check whether we are running the presubmit check for a file in src. # f.LocalPath is relative to repo (src, or internal repo). # os_path.exists is relative to src repo. # Therefore if os_path.exists is true, it means f.LocalPath is relative # to src and we can conclude that the pydeps is in src. if f.LocalPath().endswith('.pydeps'): if input_api.os_path.exists(f.LocalPath()): if f.Action() == 'D' and f.LocalPath() in _ALL_PYDEPS_FILES: results.append( output_api.PresubmitError( 'Please update _ALL_PYDEPS_FILES within //PRESUBMIT.py to ' 'remove %s' % f.LocalPath())) elif f.Action() != 'D' and f.LocalPath( ) not in _ALL_PYDEPS_FILES: results.append( output_api.PresubmitError( 'Please update _ALL_PYDEPS_FILES within //PRESUBMIT.py to ' 'include %s' % f.LocalPath())) if results: return results is_android = _ParseGclientArgs().get('checkout_android', 'false') == 'true' checker = checker_for_tests or PydepsChecker(input_api, _ALL_PYDEPS_FILES) affected_pydeps = set(checker.ComputeAffectedPydeps()) affected_android_pydeps = affected_pydeps.intersection( set(_ANDROID_SPECIFIC_PYDEPS_FILES)) if affected_android_pydeps and not is_android: results.append( output_api.PresubmitPromptOrNotify( 'You have changed python files that may affect pydeps for android\n' 'specific scripts. However, the relevant presubmit check cannot be\n' 'run because you are not using an Android checkout. To validate that\n' 'the .pydeps are correct, re-run presubmit in an Android checkout, or\n' 'use the android-internal-presubmit optional trybot.\n' 'Possibly stale pydeps files:\n{}'.format( '\n'.join(affected_android_pydeps)))) all_pydeps = _ALL_PYDEPS_FILES if is_android else _GENERIC_PYDEPS_FILES pydeps_to_check = affected_pydeps.intersection(all_pydeps) # Process these concurrently, as each one takes 1-2 seconds. pydep_results = [checker.DetermineIfStaleAsync(p) for p in pydeps_to_check] for result in pydep_results: error_msg = result.GetError() if error_msg: results.append(output_api.PresubmitError(error_msg)) return results def CheckSingletonInHeaders(input_api, output_api): """Checks to make sure no header files have |Singleton<|.""" def FileFilter(affected_file): # It's ok for base/memory/singleton.h to have |Singleton<|. files_to_skip = (_EXCLUDED_PATHS + input_api.DEFAULT_FILES_TO_SKIP + (r"^base[\\/]memory[\\/]singleton\.h$", r"^net[\\/]quic[\\/]platform[\\/]impl[\\/]" r"quic_singleton_impl\.h$")) return input_api.FilterSourceFile(affected_file, files_to_skip=files_to_skip) pattern = input_api.re.compile(r'(? in the following header files.\n' + 'Please move them to an appropriate source file so that the ' + 'template gets instantiated in a single compilation unit.', files) ] return [] _DEPRECATED_CSS = [ # Values ( "-webkit-box", "flex" ), ( "-webkit-inline-box", "inline-flex" ), ( "-webkit-flex", "flex" ), ( "-webkit-inline-flex", "inline-flex" ), ( "-webkit-min-content", "min-content" ), ( "-webkit-max-content", "max-content" ), # Properties ( "-webkit-background-clip", "background-clip" ), ( "-webkit-background-origin", "background-origin" ), ( "-webkit-background-size", "background-size" ), ( "-webkit-box-shadow", "box-shadow" ), ( "-webkit-user-select", "user-select" ), # Functions ( "-webkit-gradient", "gradient" ), ( "-webkit-repeating-gradient", "repeating-gradient" ), ( "-webkit-linear-gradient", "linear-gradient" ), ( "-webkit-repeating-linear-gradient", "repeating-linear-gradient" ), ( "-webkit-radial-gradient", "radial-gradient" ), ( "-webkit-repeating-radial-gradient", "repeating-radial-gradient" ), ] # TODO: add unit tests def CheckNoDeprecatedCss(input_api, output_api): """ Make sure that we don't use deprecated CSS properties, functions or values. Our external documentation and iOS CSS for dom distiller (reader mode) are ignored by the hooks as it needs to be consumed by WebKit. """ results = [] file_inclusion_pattern = [r".+\.css$"] files_to_skip = (_EXCLUDED_PATHS + _TEST_CODE_EXCLUDED_PATHS + input_api.DEFAULT_FILES_TO_SKIP + (r"^chrome/common/extensions/docs", r"^chrome/docs", r"^native_client_sdk")) file_filter = lambda f: input_api.FilterSourceFile( f, files_to_check=file_inclusion_pattern, files_to_skip=files_to_skip) for fpath in input_api.AffectedFiles(file_filter=file_filter): for line_num, line in fpath.ChangedContents(): for (deprecated_value, value) in _DEPRECATED_CSS: if deprecated_value in line: results.append( output_api.PresubmitError( "%s:%d: Use of deprecated CSS %s, use %s instead" % (fpath.LocalPath(), line_num, deprecated_value, value))) return results def CheckForRelativeIncludes(input_api, output_api): bad_files = {} for f in input_api.AffectedFiles(include_deletes=False): if (f.LocalPath().startswith('third_party') and not f.LocalPath().startswith('third_party/blink') and not f.LocalPath().startswith('third_party\\blink')): continue if not _IsCPlusPlusFile(input_api, f.LocalPath()): continue relative_includes = [ line for _, line in f.ChangedContents() if "#include" in line and "../" in line ] if not relative_includes: continue bad_files[f.LocalPath()] = relative_includes if not bad_files: return [] error_descriptions = [] for file_path, bad_lines in bad_files.items(): error_description = file_path for line in bad_lines: error_description += '\n ' + line error_descriptions.append(error_description) results = [] results.append( output_api.PresubmitError( 'You added one or more relative #include paths (including "../").\n' 'These shouldn\'t be used because they can be used to include headers\n' 'from code that\'s not correctly specified as a dependency in the\n' 'relevant BUILD.gn file(s).', error_descriptions)) return results def CheckForCcIncludes(input_api, output_api): """Check that nobody tries to include a cc file. It's a relatively common error which results in duplicate symbols in object files. This may not always break the build until someone later gets very confusing linking errors.""" results = [] for f in input_api.AffectedFiles(include_deletes=False): # We let third_party code do whatever it wants if (f.LocalPath().startswith('third_party') and not f.LocalPath().startswith('third_party/blink') and not f.LocalPath().startswith('third_party\\blink')): continue if not _IsCPlusPlusFile(input_api, f.LocalPath()): continue for _, line in f.ChangedContents(): if line.startswith('#include "'): included_file = line.split('"')[1] if _IsCPlusPlusFile(input_api, included_file): # The most common naming for external files with C++ code, # apart from standard headers, is to call them foo.inc, but # Chromium sometimes uses foo-inc.cc so allow that as well. if not included_file.endswith(('.h', '-inc.cc')): results.append( output_api.PresubmitError( 'Only header files or .inc files should be included in other\n' 'C++ files. Compiling the contents of a cc file more than once\n' 'will cause duplicate information in the build which may later\n' 'result in strange link_errors.\n' + f.LocalPath() + ':\n ' + line)) return results def _CheckWatchlistDefinitionsEntrySyntax(key, value, ast): if not isinstance(key, ast.Str): return 'Key at line %d must be a string literal' % key.lineno if not isinstance(value, ast.Dict): return 'Value at line %d must be a dict' % value.lineno if len(value.keys) != 1: return 'Dict at line %d must have single entry' % value.lineno if not isinstance(value.keys[0], ast.Str) or value.keys[0].s != 'filepath': return ( 'Entry at line %d must have a string literal \'filepath\' as key' % value.lineno) return None def _CheckWatchlistsEntrySyntax(key, value, ast, email_regex): if not isinstance(key, ast.Str): return 'Key at line %d must be a string literal' % key.lineno if not isinstance(value, ast.List): return 'Value at line %d must be a list' % value.lineno for element in value.elts: if not isinstance(element, ast.Str): return 'Watchlist elements on line %d is not a string' % key.lineno if not email_regex.match(element.s): return ('Watchlist element on line %d doesn\'t look like a valid ' + 'email: %s') % (key.lineno, element.s) return None def _CheckWATCHLISTSEntries(wd_dict, w_dict, input_api): mismatch_template = ( 'Mismatch between WATCHLIST_DEFINITIONS entry (%s) and WATCHLISTS ' 'entry (%s)') email_regex = input_api.re.compile( r"^[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+$") ast = input_api.ast i = 0 last_key = '' while True: if i >= len(wd_dict.keys): if i >= len(w_dict.keys): return None return mismatch_template % ('missing', 'line %d' % w_dict.keys[i].lineno) elif i >= len(w_dict.keys): return (mismatch_template % ('line %d' % wd_dict.keys[i].lineno, 'missing')) wd_key = wd_dict.keys[i] w_key = w_dict.keys[i] result = _CheckWatchlistDefinitionsEntrySyntax(wd_key, wd_dict.values[i], ast) if result is not None: return 'Bad entry in WATCHLIST_DEFINITIONS dict: %s' % result result = _CheckWatchlistsEntrySyntax(w_key, w_dict.values[i], ast, email_regex) if result is not None: return 'Bad entry in WATCHLISTS dict: %s' % result if wd_key.s != w_key.s: return mismatch_template % ('%s at line %d' % (wd_key.s, wd_key.lineno), '%s at line %d' % (w_key.s, w_key.lineno)) if wd_key.s < last_key: return ( 'WATCHLISTS dict is not sorted lexicographically at line %d and %d' % (wd_key.lineno, w_key.lineno)) last_key = wd_key.s i = i + 1 def _CheckWATCHLISTSSyntax(expression, input_api): ast = input_api.ast if not isinstance(expression, ast.Expression): return 'WATCHLISTS file must contain a valid expression' dictionary = expression.body if not isinstance(dictionary, ast.Dict) or len(dictionary.keys) != 2: return 'WATCHLISTS file must have single dict with exactly two entries' first_key = dictionary.keys[0] first_value = dictionary.values[0] second_key = dictionary.keys[1] second_value = dictionary.values[1] if (not isinstance(first_key, ast.Str) or first_key.s != 'WATCHLIST_DEFINITIONS' or not isinstance(first_value, ast.Dict)): return ('The first entry of the dict in WATCHLISTS file must be ' 'WATCHLIST_DEFINITIONS dict') if (not isinstance(second_key, ast.Str) or second_key.s != 'WATCHLISTS' or not isinstance(second_value, ast.Dict)): return ('The second entry of the dict in WATCHLISTS file must be ' 'WATCHLISTS dict') return _CheckWATCHLISTSEntries(first_value, second_value, input_api) def CheckWATCHLISTS(input_api, output_api): for f in input_api.AffectedFiles(include_deletes=False): if f.LocalPath() == 'WATCHLISTS': contents = input_api.ReadFile(f, 'r') try: # First, make sure that it can be evaluated. input_api.ast.literal_eval(contents) # Get an AST tree for it and scan the tree for detailed style checking. expression = input_api.ast.parse(contents, filename='WATCHLISTS', mode='eval') except ValueError as e: return [ output_api.PresubmitError('Cannot parse WATCHLISTS file', long_text=repr(e)) ] except SyntaxError as e: return [ output_api.PresubmitError('Cannot parse WATCHLISTS file', long_text=repr(e)) ] except TypeError as e: return [ output_api.PresubmitError('Cannot parse WATCHLISTS file', long_text=repr(e)) ] result = _CheckWATCHLISTSSyntax(expression, input_api) if result is not None: return [output_api.PresubmitError(result)] break return [] def CheckGnGlobForward(input_api, output_api): """Checks that forward_variables_from(invoker, "*") follows best practices. As documented at //build/docs/writing_gn_templates.md """ def gn_files(f): return input_api.FilterSourceFile(f, files_to_check=(r'.+\.gni', )) problems = [] for f in input_api.AffectedSourceFiles(gn_files): for line_num, line in f.ChangedContents(): if 'forward_variables_from(invoker, "*")' in line: problems.append( 'Bare forward_variables_from(invoker, "*") in %s:%d' % (f.LocalPath(), line_num)) if problems: return [ output_api.PresubmitPromptWarning( 'forward_variables_from("*") without exclusions', items=sorted(problems), long_text=( 'The variables "visibility" and "test_only" should be ' 'explicitly listed in forward_variables_from(). For more ' 'details, see:\n' 'https://chromium.googlesource.com/chromium/src/+/HEAD/' 'build/docs/writing_gn_templates.md' '#Using-forward_variables_from')) ] return [] def CheckNewHeaderWithoutGnChangeOnUpload(input_api, output_api): """Checks that newly added header files have corresponding GN changes. Note that this is only a heuristic. To be precise, run script: build/check_gn_headers.py. """ def headers(f): return input_api.FilterSourceFile( f, files_to_check=(r'.+%s' % _HEADER_EXTENSIONS, )) new_headers = [] for f in input_api.AffectedSourceFiles(headers): if f.Action() != 'A': continue new_headers.append(f.LocalPath()) def gn_files(f): return input_api.FilterSourceFile(f, files_to_check=(r'.+\.gn', )) all_gn_changed_contents = '' for f in input_api.AffectedSourceFiles(gn_files): for _, line in f.ChangedContents(): all_gn_changed_contents += line problems = [] for header in new_headers: basename = input_api.os_path.basename(header) if basename not in all_gn_changed_contents: problems.append(header) if problems: return [ output_api.PresubmitPromptWarning( 'Missing GN changes for new header files', items=sorted(problems), long_text= 'Please double check whether newly added header files need ' 'corresponding changes in gn or gni files.\nThis checking is only a ' 'heuristic. Run build/check_gn_headers.py to be precise.\n' 'Read https://crbug.com/661774 for more info.') ] return [] def CheckCorrectProductNameInMessages(input_api, output_api): """Check that Chromium-branded strings don't include "Chrome" or vice versa. This assumes we won't intentionally reference one product from the other product. """ all_problems = [] test_cases = [{ "filename_postfix": "google_chrome_strings.grd", "correct_name": "Chrome", "incorrect_name": "Chromium", }, { "filename_postfix": "chromium_strings.grd", "correct_name": "Chromium", "incorrect_name": "Chrome", }] for test_case in test_cases: problems = [] filename_filter = lambda x: x.LocalPath().endswith(test_case[ "filename_postfix"]) # Check each new line. Can yield false positives in multiline comments, but # easier than trying to parse the XML because messages can have nested # children, and associating message elements with affected lines is hard. for f in input_api.AffectedSourceFiles(filename_filter): for line_num, line in f.ChangedContents(): if "" in line: continue if test_case["incorrect_name"] in line: problems.append("Incorrect product name in %s:%d" % (f.LocalPath(), line_num)) if problems: message = ( "Strings in %s-branded string files should reference \"%s\", not \"%s\"" % (test_case["correct_name"], test_case["correct_name"], test_case["incorrect_name"])) all_problems.append( output_api.PresubmitPromptWarning(message, items=problems)) return all_problems def CheckForTooLargeFiles(input_api, output_api): """Avoid large files, especially binary files, in the repository since git doesn't scale well for those. They will be in everyone's repo clones forever, forever making Chromium slower to clone and work with.""" # Uploading files to cloud storage is not trivial so we don't want # to set the limit too low, but the upper limit for "normal" large # files seems to be 1-2 MB, with a handful around 5-8 MB, so # anything over 20 MB is exceptional. TOO_LARGE_FILE_SIZE_LIMIT = 20 * 1024 * 1024 # 10 MB too_large_files = [] for f in input_api.AffectedFiles(): # Check both added and modified files (but not deleted files). if f.Action() in ('A', 'M'): size = input_api.os_path.getsize(f.AbsoluteLocalPath()) if size > TOO_LARGE_FILE_SIZE_LIMIT: too_large_files.append("%s: %d bytes" % (f.LocalPath(), size)) if too_large_files: message = ( 'Do not commit large files to git since git scales badly for those.\n' + 'Instead put the large files in cloud storage and use DEPS to\n' + 'fetch them.\n' + '\n'.join(too_large_files)) return [ output_api.PresubmitError('Too large files found in commit', long_text=message + '\n') ] else: return [] def CheckFuzzTargetsOnUpload(input_api, output_api): """Checks specific for fuzz target sources.""" EXPORTED_SYMBOLS = [ 'LLVMFuzzerInitialize', 'LLVMFuzzerCustomMutator', 'LLVMFuzzerCustomCrossOver', 'LLVMFuzzerMutate', ] REQUIRED_HEADER = '#include "testing/libfuzzer/libfuzzer_exports.h"' def FilterFile(affected_file): """Ignore libFuzzer source code.""" files_to_check = r'.*fuzz.*\.(h|hpp|hcc|cc|cpp|cxx)$' files_to_skip = r"^third_party[\\/]libFuzzer" return input_api.FilterSourceFile(affected_file, files_to_check=[files_to_check], files_to_skip=[files_to_skip]) files_with_missing_header = [] for f in input_api.AffectedSourceFiles(FilterFile): contents = input_api.ReadFile(f, 'r') if REQUIRED_HEADER in contents: continue if any(symbol in contents for symbol in EXPORTED_SYMBOLS): files_with_missing_header.append(f.LocalPath()) if not files_with_missing_header: return [] long_text = ( 'If you define any of the libFuzzer optional functions (%s), it is ' 'recommended to add \'%s\' directive. Otherwise, the fuzz target may ' 'work incorrectly on Mac (crbug.com/687076).\nNote that ' 'LLVMFuzzerInitialize should not be used, unless your fuzz target needs ' 'to access command line arguments passed to the fuzzer. Instead, prefer ' 'static initialization and shared resources as documented in ' 'https://chromium.googlesource.com/chromium/src/+/main/testing/' 'libfuzzer/efficient_fuzzing.md#simplifying-initialization_cleanup.\n' % (', '.join(EXPORTED_SYMBOLS), REQUIRED_HEADER)) return [ output_api.PresubmitPromptWarning(message="Missing '%s' in:" % REQUIRED_HEADER, items=files_with_missing_header, long_text=long_text) ] def _CheckNewImagesWarning(input_api, output_api): """ Warns authors who add images into the repo to make sure their images are optimized before committing. """ images_added = False image_paths = [] errors = [] filter_lambda = lambda x: input_api.FilterSourceFile( x, files_to_skip=(('(?i).*test', r'.*\/junit\/') + input_api. DEFAULT_FILES_TO_SKIP), files_to_check=[r'.*\/(drawable|mipmap)']) for f in input_api.AffectedFiles(include_deletes=False, file_filter=filter_lambda): local_path = f.LocalPath().lower() if any( local_path.endswith(extension) for extension in _IMAGE_EXTENSIONS): images_added = True image_paths.append(f) if images_added: errors.append( output_api.PresubmitPromptWarning( 'It looks like you are trying to commit some images. If these are ' 'non-test-only images, please make sure to read and apply the tips in ' 'https://chromium.googlesource.com/chromium/src/+/HEAD/docs/speed/' 'binary_size/optimization_advice.md#optimizing-images\nThis check is ' 'FYI only and will not block your CL on the CQ.', image_paths)) return errors def ChecksAndroidSpecificOnUpload(input_api, output_api): """Groups upload checks that target android code.""" results = [] results.extend(_CheckAndroidCrLogUsage(input_api, output_api)) results.extend(_CheckAndroidDebuggableBuild(input_api, output_api)) results.extend(_CheckAndroidNewMdpiAssetLocation(input_api, output_api)) results.extend(_CheckAndroidToastUsage(input_api, output_api)) results.extend(_CheckAndroidTestJUnitInheritance(input_api, output_api)) results.extend(_CheckAndroidTestJUnitFrameworkImport( input_api, output_api)) results.extend(_CheckAndroidTestAnnotationUsage(input_api, output_api)) results.extend(_CheckAndroidWebkitImports(input_api, output_api)) results.extend(_CheckAndroidXmlStyle(input_api, output_api, True)) results.extend(_CheckNewImagesWarning(input_api, output_api)) results.extend(_CheckAndroidNoBannedImports(input_api, output_api)) results.extend(_CheckAndroidInfoBarDeprecation(input_api, output_api)) return results def ChecksAndroidSpecificOnCommit(input_api, output_api): """Groups commit checks that target android code.""" results = [] results.extend(_CheckAndroidXmlStyle(input_api, output_api, False)) return results # TODO(chrishall): could we additionally match on any path owned by # ui/accessibility/OWNERS ? _ACCESSIBILITY_PATHS = ( r"^chrome[\\/]browser.*[\\/]accessibility[\\/]", r"^chrome[\\/]browser[\\/]extensions[\\/]api[\\/]automation.*[\\/]", r"^chrome[\\/]renderer[\\/]extensions[\\/]accessibility_.*", r"^chrome[\\/]tests[\\/]data[\\/]accessibility[\\/]", r"^content[\\/]browser[\\/]accessibility[\\/]", r"^content[\\/]renderer[\\/]accessibility[\\/]", r"^content[\\/]tests[\\/]data[\\/]accessibility[\\/]", r"^extensions[\\/]renderer[\\/]api[\\/]automation[\\/]", r"^ui[\\/]accessibility[\\/]", r"^ui[\\/]views[\\/]accessibility[\\/]", ) def CheckAccessibilityRelnotesField(input_api, output_api): """Checks that commits to accessibility code contain an AX-Relnotes field in their commit message.""" def FileFilter(affected_file): paths = _ACCESSIBILITY_PATHS return input_api.FilterSourceFile(affected_file, files_to_check=paths) # Only consider changes affecting accessibility paths. if not any(input_api.AffectedFiles(file_filter=FileFilter)): return [] # AX-Relnotes can appear in either the description or the footer. # When searching the description, require 'AX-Relnotes:' to appear at the # beginning of a line. ax_regex = input_api.re.compile('ax-relnotes[:=]') description_has_relnotes = any( ax_regex.match(line) for line in input_api.change.DescriptionText().lower().splitlines()) footer_relnotes = input_api.change.GitFootersFromDescription().get( 'AX-Relnotes', []) if description_has_relnotes or footer_relnotes: return [] # TODO(chrishall): link to Relnotes documentation in message. message = ( "Missing 'AX-Relnotes:' field required for accessibility changes" "\n please add 'AX-Relnotes: [release notes].' to describe any " "user-facing changes" "\n otherwise add 'AX-Relnotes: n/a.' if this change has no " "user-facing effects" "\n if this is confusing or annoying then please contact members " "of ui/accessibility/OWNERS.") return [output_api.PresubmitNotifyResult(message)] _ACCESSIBILITY_EVENTS_TEST_PATH = ( r"^content[\\/]test[\\/]data[\\/]accessibility[\\/]event[\\/].*\.html", ) _ACCESSIBILITY_TREE_TEST_PATH = ( r"^content[\\/]test[\\/]data[\\/]accessibility[\\/]accname[\\/].*\.html", r"^content[\\/]test[\\/]data[\\/]accessibility[\\/]aria[\\/].*\.html", r"^content[\\/]test[\\/]data[\\/]accessibility[\\/]css[\\/].*\.html", r"^content[\\/]test[\\/]data[\\/]accessibility[\\/]html[\\/].*\.html", ) _ACCESSIBILITY_ANDROID_EVENTS_TEST_PATH = ( r"^.*[\\/]WebContentsAccessibilityEventsTest\.java", ) _ACCESSIBILITY_ANDROID_TREE_TEST_PATH = ( r"^.*[\\/]WebContentsAccessibilityTreeTest\.java", ) def CheckAccessibilityEventsTestsAreIncludedForAndroid(input_api, output_api): """Checks that commits that include a newly added, renamed/moved, or deleted test in the DumpAccessibilityEventsTest suite also includes a corresponding change to the Android test.""" def FilePathFilter(affected_file): paths = _ACCESSIBILITY_EVENTS_TEST_PATH return input_api.FilterSourceFile(affected_file, files_to_check=paths) def AndroidFilePathFilter(affected_file): paths = _ACCESSIBILITY_ANDROID_EVENTS_TEST_PATH return input_api.FilterSourceFile(affected_file, files_to_check=paths) # Only consider changes in the events test data path with html type. if not any( input_api.AffectedFiles(include_deletes=True, file_filter=FilePathFilter)): return [] # If the commit contains any change to the Android test file, ignore. if any( input_api.AffectedFiles(include_deletes=True, file_filter=AndroidFilePathFilter)): return [] # Only consider changes that are adding/renaming or deleting a file message = [] for f in input_api.AffectedFiles(include_deletes=True, file_filter=FilePathFilter): if f.Action() == 'A' or f.Action() == 'D': message = ( "It appears that you are adding, renaming or deleting" "\na dump_accessibility_events* test, but have not included" "\na corresponding change for Android." "\nPlease include (or remove) the test from:" "\n content/public/android/javatests/src/org/chromium/" "content/browser/accessibility/" "WebContentsAccessibilityEventsTest.java" "\nIf this message is confusing or annoying, please contact" "\nmembers of ui/accessibility/OWNERS.") # If no message was set, return empty. if not len(message): return [] return [output_api.PresubmitPromptWarning(message)] def CheckAccessibilityTreeTestsAreIncludedForAndroid(input_api, output_api): """Checks that commits that include a newly added, renamed/moved, or deleted test in the DumpAccessibilityTreeTest suite also includes a corresponding change to the Android test.""" def FilePathFilter(affected_file): paths = _ACCESSIBILITY_TREE_TEST_PATH return input_api.FilterSourceFile(affected_file, files_to_check=paths) def AndroidFilePathFilter(affected_file): paths = _ACCESSIBILITY_ANDROID_TREE_TEST_PATH return input_api.FilterSourceFile(affected_file, files_to_check=paths) # Only consider changes in the various tree test data paths with html type. if not any( input_api.AffectedFiles(include_deletes=True, file_filter=FilePathFilter)): return [] # If the commit contains any change to the Android test file, ignore. if any( input_api.AffectedFiles(include_deletes=True, file_filter=AndroidFilePathFilter)): return [] # Only consider changes that are adding/renaming or deleting a file message = [] for f in input_api.AffectedFiles(include_deletes=True, file_filter=FilePathFilter): if f.Action() == 'A' or f.Action() == 'D': message = ( "It appears that you are adding, renaming or deleting" "\na dump_accessibility_tree* test, but have not included" "\na corresponding change for Android." "\nPlease include (or remove) the test from:" "\n content/public/android/javatests/src/org/chromium/" "content/browser/accessibility/" "WebContentsAccessibilityTreeTest.java" "\nIf this message is confusing or annoying, please contact" "\nmembers of ui/accessibility/OWNERS.") # If no message was set, return empty. if not len(message): return [] return [output_api.PresubmitPromptWarning(message)] # string pattern, sequence of strings to show when pattern matches, # error flag. True if match is a presubmit error, otherwise it's a warning. _NON_INCLUSIVE_TERMS = ( ( # Note that \b pattern in python re is pretty particular. In this # regexp, 'class WhiteList ...' will match, but 'class FooWhiteList # ...' will not. This may require some tweaking to catch these cases # without triggering a lot of false positives. Leaving it naive and # less matchy for now. r'/\b(?i)((black|white)list|master|slave)\b', # nocheck ( 'Please don\'t use blacklist, whitelist, ' # nocheck 'or slave in your', # nocheck 'code and make every effort to use other terms. Using "// nocheck"', '"# nocheck" or ""', 'at the end of the offending line will bypass this PRESUBMIT error', 'but avoid using this whenever possible. Reach out to', 'community@chromium.org if you have questions'), True),) def ChecksCommon(input_api, output_api): """Checks common to both upload and commit.""" results = [] results.extend( input_api.canned_checks.PanProjectChecks( input_api, output_api, excluded_paths=_EXCLUDED_PATHS)) author = input_api.change.author_email if author and author not in _KNOWN_ROBOTS: results.extend( input_api.canned_checks.CheckAuthorizedAuthor( input_api, output_api)) results.extend( input_api.canned_checks.CheckChangeHasNoTabs( input_api, output_api, source_file_filter=lambda x: x.LocalPath().endswith('.grd'))) results.extend( input_api.RunTests( input_api.canned_checks.CheckVPythonSpec(input_api, output_api))) dirmd = 'dirmd.bat' if input_api.is_windows else 'dirmd' dirmd_bin = input_api.os_path.join(input_api.PresubmitLocalPath(), 'third_party', 'depot_tools', dirmd) results.extend( input_api.RunTests( input_api.canned_checks.CheckDirMetadataFormat( input_api, output_api, dirmd_bin))) results.extend( input_api.canned_checks.CheckOwnersDirMetadataExclusive( input_api, output_api)) results.extend( input_api.canned_checks.CheckNoNewMetadataInOwners( input_api, output_api)) results.extend( input_api.canned_checks.CheckInclusiveLanguage( input_api, output_api, excluded_directories_relative_path=[ 'infra', 'inclusive_language_presubmit_exempt_dirs.txt' ], non_inclusive_terms=_NON_INCLUSIVE_TERMS)) presubmit_py_filter = lambda f: input_api.FilterSourceFile( f, files_to_check=[r'PRESUBMIT\.py$']) for f in input_api.AffectedFiles(include_deletes=False, file_filter=presubmit_py_filter): full_path = input_api.os_path.dirname(f.AbsoluteLocalPath()) test_file = input_api.os_path.join(full_path, 'PRESUBMIT_test.py') # The PRESUBMIT.py file (and the directory containing it) might have # been affected by being moved or removed, so only try to run the tests # if they still exist. if not input_api.os_path.exists(test_file): continue use_python3 = False with open(f.LocalPath()) as fp: use_python3 = any( line.startswith('USE_PYTHON3 = True') for line in fp.readlines()) results.extend( input_api.canned_checks.RunUnitTestsInDirectory( input_api, output_api, full_path, files_to_check=[r'^PRESUBMIT_test\.py$'], run_on_python2=not use_python3, run_on_python3=use_python3, skip_shebang_check=True)) return results def CheckPatchFiles(input_api, output_api): problems = [ f.LocalPath() for f in input_api.AffectedFiles() if f.LocalPath().endswith(('.orig', '.rej')) ] # Cargo.toml.orig files are part of third-party crates downloaded from # crates.io and should be included. problems = [f for f in problems if not f.endswith('Cargo.toml.orig')] if problems: return [ output_api.PresubmitError("Don't commit .rej and .orig files.", problems) ] else: return [] def CheckBuildConfigMacrosWithoutInclude(input_api, output_api): # Excludes OS_CHROMEOS, which is not defined in build_config.h. macro_re = input_api.re.compile( r'^\s*#(el)?if.*\bdefined\(((COMPILER_|ARCH_CPU_|WCHAR_T_IS_)[^)]*)') include_re = input_api.re.compile(r'^#include\s+"build/build_config.h"', input_api.re.MULTILINE) extension_re = input_api.re.compile(r'\.[a-z]+$') errors = [] config_h_file = input_api.os_path.join('build', 'build_config.h') for f in input_api.AffectedFiles(include_deletes=False): # The build-config macros are allowed to be used in build_config.h # without including itself. if f.LocalPath() == config_h_file: continue if not f.LocalPath().endswith( ('.h', '.c', '.cc', '.cpp', '.m', '.mm')): continue found_line_number = None found_macro = None all_lines = input_api.ReadFile(f, 'r').splitlines() for line_num, line in enumerate(all_lines): match = macro_re.search(line) if match: found_line_number = line_num found_macro = match.group(2) break if not found_line_number: continue found_include_line = -1 for line_num, line in enumerate(all_lines): if include_re.search(line): found_include_line = line_num break if found_include_line >= 0 and found_include_line < found_line_number: continue if not f.LocalPath().endswith('.h'): primary_header_path = extension_re.sub('.h', f.AbsoluteLocalPath()) try: content = input_api.ReadFile(primary_header_path, 'r') if include_re.search(content): continue except IOError: pass errors.append('%s:%d %s macro is used without first including build/' 'build_config.h.' % (f.LocalPath(), found_line_number, found_macro)) if errors: return [output_api.PresubmitPromptWarning('\n'.join(errors))] return [] def CheckForSuperfluousStlIncludesInHeaders(input_api, output_api): stl_include_re = input_api.re.compile(r'^#include\s+<(' r'algorithm|' r'array|' r'limits|' r'list|' r'map|' r'memory|' r'queue|' r'set|' r'string|' r'unordered_map|' r'unordered_set|' r'utility|' r'vector)>') std_namespace_re = input_api.re.compile(r'std::') errors = [] for f in input_api.AffectedFiles(): if not _IsCPlusPlusHeaderFile(input_api, f.LocalPath()): continue uses_std_namespace = False has_stl_include = False for line in f.NewContents(): if has_stl_include and uses_std_namespace: break if not has_stl_include and stl_include_re.search(line): has_stl_include = True continue if not uses_std_namespace and (std_namespace_re.search(line) or 'no-std-usage-because-pch-file' in line): uses_std_namespace = True continue if has_stl_include and not uses_std_namespace: errors.append( '%s: Includes STL header(s) but does not reference std::' % f.LocalPath()) if errors: return [output_api.PresubmitPromptWarning('\n'.join(errors))] return [] def _CheckForDeprecatedOSMacrosInFile(input_api, f): """Check for sensible looking, totally invalid OS macros.""" preprocessor_statement = input_api.re.compile(r'^\s*#') os_macro = input_api.re.compile(r'defined\(OS_([^)]+)\)') results = [] for lnum, line in f.ChangedContents(): if preprocessor_statement.search(line): for match in os_macro.finditer(line): results.append( ' %s:%d: %s' % (f.LocalPath(), lnum, 'defined(OS_' + match.group(1) + ') -> BUILDFLAG(IS_' + match.group(1) + ')')) return results def CheckForDeprecatedOSMacros(input_api, output_api): """Check all affected files for invalid OS macros.""" bad_macros = [] # The OS_ macros are allowed to be used in build/build_config.h. config_h_file = input_api.os_path.join('build', 'build_config.h') for f in input_api.AffectedSourceFiles(None): if not f.LocalPath().endswith(('.py', '.js', '.html', '.css', '.md')) \ and f.LocalPath() != config_h_file: bad_macros.extend(_CheckForDeprecatedOSMacrosInFile(input_api, f)) if not bad_macros: return [] return [ output_api.PresubmitError( 'OS macros have been deprecated. Please use BUILDFLAGs instead (still ' 'defined in build_config.h):', bad_macros) ] def _CheckForInvalidIfDefinedMacrosInFile(input_api, f): """Check all affected files for invalid "if defined" macros.""" ALWAYS_DEFINED_MACROS = ( "TARGET_CPU_PPC", "TARGET_CPU_PPC64", "TARGET_CPU_68K", "TARGET_CPU_X86", "TARGET_CPU_ARM", "TARGET_CPU_MIPS", "TARGET_CPU_SPARC", "TARGET_CPU_ALPHA", "TARGET_IPHONE_SIMULATOR", "TARGET_OS_EMBEDDED", "TARGET_OS_IPHONE", "TARGET_OS_MAC", "TARGET_OS_UNIX", "TARGET_OS_WIN32", ) ifdef_macro = input_api.re.compile( r'^\s*#.*(?:ifdef\s|defined\()([^\s\)]+)') results = [] for lnum, line in f.ChangedContents(): for match in ifdef_macro.finditer(line): if match.group(1) in ALWAYS_DEFINED_MACROS: always_defined = ' %s is always defined. ' % match.group(1) did_you_mean = 'Did you mean \'#if %s\'?' % match.group(1) results.append( ' %s:%d %s\n\t%s' % (f.LocalPath(), lnum, always_defined, did_you_mean)) return results def CheckForInvalidIfDefinedMacros(input_api, output_api): """Check all affected files for invalid "if defined" macros.""" bad_macros = [] skipped_paths = ['third_party/sqlite/', 'third_party/abseil-cpp/'] for f in input_api.AffectedFiles(): if any([f.LocalPath().startswith(path) for path in skipped_paths]): continue if f.LocalPath().endswith(('.h', '.c', '.cc', '.m', '.mm')): bad_macros.extend( _CheckForInvalidIfDefinedMacrosInFile(input_api, f)) if not bad_macros: return [] return [ output_api.PresubmitError( 'Found ifdef check on always-defined macro[s]. Please fix your code\n' 'or check the list of ALWAYS_DEFINED_MACROS in src/PRESUBMIT.py.', bad_macros) ] def CheckForIPCRules(input_api, output_api): """Check for same IPC rules described in http://www.chromium.org/Home/chromium-security/education/security-tips-for-ipc """ base_pattern = r'IPC_ENUM_TRAITS\(' inclusion_pattern = input_api.re.compile(r'(%s)' % base_pattern) comment_pattern = input_api.re.compile(r'//.*(%s)' % base_pattern) problems = [] for f in input_api.AffectedSourceFiles(None): local_path = f.LocalPath() if not local_path.endswith('.h'): continue for line_number, line in f.ChangedContents(): if inclusion_pattern.search( line) and not comment_pattern.search(line): problems.append('%s:%d\n %s' % (local_path, line_number, line.strip())) if problems: return [ output_api.PresubmitPromptWarning(_IPC_ENUM_TRAITS_DEPRECATED, problems) ] else: return [] def CheckForLongPathnames(input_api, output_api): """Check to make sure no files being submitted have long paths. This causes issues on Windows. """ problems = [] for f in input_api.AffectedTestableFiles(): local_path = f.LocalPath() # Windows has a path limit of 260 characters. Limit path length to 200 so # that we have some extra for the prefix on dev machines and the bots. if len(local_path) > 200: problems.append(local_path) if problems: return [output_api.PresubmitError(_LONG_PATH_ERROR, problems)] else: return [] def CheckForIncludeGuards(input_api, output_api): """Check that header files have proper guards against multiple inclusion. If a file should not have such guards (and it probably should) then it should include the string "no-include-guard-because-multiply-included" or "no-include-guard-because-pch-file". """ def is_chromium_header_file(f): # We only check header files under the control of the Chromium # project. That is, those outside third_party apart from # third_party/blink. # We also exclude *_message_generator.h headers as they use # include guards in a special, non-typical way. file_with_path = input_api.os_path.normpath(f.LocalPath()) return (file_with_path.endswith('.h') and not file_with_path.endswith('_message_generator.h') and not file_with_path.endswith('com_imported_mstscax.h') and (not file_with_path.startswith('third_party') or file_with_path.startswith( input_api.os_path.join('third_party', 'blink')))) def replace_special_with_underscore(string): return input_api.re.sub(r'[+\\/.-]', '_', string) errors = [] for f in input_api.AffectedSourceFiles(is_chromium_header_file): guard_name = None guard_line_number = None seen_guard_end = False file_with_path = input_api.os_path.normpath(f.LocalPath()) base_file_name = input_api.os_path.splitext( input_api.os_path.basename(file_with_path))[0] upper_base_file_name = base_file_name.upper() expected_guard = replace_special_with_underscore( file_with_path.upper() + '_') # For "path/elem/file_name.h" we should really only accept # PATH_ELEM_FILE_NAME_H_ per coding style. Unfortunately there # are too many (1000+) files with slight deviations from the # coding style. The most important part is that the include guard # is there, and that it's unique, not the name so this check is # forgiving for existing files. # # As code becomes more uniform, this could be made stricter. guard_name_pattern_list = [ # Anything with the right suffix (maybe with an extra _). r'\w+_H__?', # To cover include guards with old Blink style. r'\w+_h', # Anything including the uppercase name of the file. r'\w*' + input_api.re.escape( replace_special_with_underscore(upper_base_file_name)) + r'\w*', ] guard_name_pattern = '|'.join(guard_name_pattern_list) guard_pattern = input_api.re.compile(r'#ifndef\s+(' + guard_name_pattern + ')') for line_number, line in enumerate(f.NewContents()): if ('no-include-guard-because-multiply-included' in line or 'no-include-guard-because-pch-file' in line): guard_name = 'DUMMY' # To not trigger check outside the loop. break if guard_name is None: match = guard_pattern.match(line) if match: guard_name = match.group(1) guard_line_number = line_number # We allow existing files to use include guards whose names # don't match the chromium style guide, but new files should # get it right. if guard_name != expected_guard: if not f.OldContents(): errors.append( output_api.PresubmitPromptWarning( 'Header using the wrong include guard name %s' % guard_name, [ '%s:%d' % (f.LocalPath(), line_number + 1) ], 'Expected: %r\nFound: %r' % (expected_guard, guard_name))) else: # The line after #ifndef should have a #define of the same name. if line_number == guard_line_number + 1: expected_line = '#define %s' % guard_name if line != expected_line: errors.append( output_api.PresubmitPromptWarning( 'Missing "%s" for include guard' % expected_line, ['%s:%d' % (f.LocalPath(), line_number + 1)], 'Expected: %r\nGot: %r' % (expected_line, line))) if not seen_guard_end and line == '#endif // %s' % guard_name: seen_guard_end = True elif seen_guard_end: if line.strip() != '': errors.append( output_api.PresubmitPromptWarning( 'Include guard %s not covering the whole file' % (guard_name), [f.LocalPath()])) break # Nothing else to check and enough to warn once. if guard_name is None: errors.append( output_api.PresubmitPromptWarning( 'Missing include guard in %s\n' 'Recommended name: %s\n' 'This check can be disabled by having the string\n' '"no-include-guard-because-multiply-included" or\n' '"no-include-guard-because-pch-file" in the header.' % (f.LocalPath(), expected_guard))) return errors def CheckForWindowsLineEndings(input_api, output_api): """Check source code and known ascii text files for Windows style line endings. """ known_text_files = r'.*\.(txt|html|htm|py|gyp|gypi|gn|isolate|icon)$' file_inclusion_pattern = (known_text_files, r'.+%s' % _IMPLEMENTATION_EXTENSIONS, r'.+%s' % _HEADER_EXTENSIONS) problems = [] source_file_filter = lambda f: input_api.FilterSourceFile( f, files_to_check=file_inclusion_pattern, files_to_skip=None) for f in input_api.AffectedSourceFiles(source_file_filter): # Ignore test files that contain crlf intentionally. if f.LocalPath().endswith('crlf.txt'): continue include_file = False for line in input_api.ReadFile(f, 'r').splitlines(True): if line.endswith('\r\n'): include_file = True if include_file: problems.append(f.LocalPath()) if problems: return [ output_api.PresubmitPromptWarning( 'Are you sure that you want ' 'these files to contain Windows style line endings?\n' + '\n'.join(problems)) ] return [] def CheckIconFilesForLicenseHeaders(input_api, output_api): """Check that .icon files (which are fragments of C++) have license headers. """ icon_files = (r'.*\.icon$', ) icons = lambda x: input_api.FilterSourceFile(x, files_to_check=icon_files) return input_api.canned_checks.CheckLicense(input_api, output_api, source_file_filter=icons) def CheckForUseOfChromeAppsDeprecations(input_api, output_api): """Check source code for use of Chrome App technologies being deprecated. """ def _CheckForDeprecatedTech(input_api, output_api, detection_list, files_to_check=None, files_to_skip=None): if (files_to_check or files_to_skip): source_file_filter = lambda f: input_api.FilterSourceFile( f, files_to_check=files_to_check, files_to_skip=files_to_skip) else: source_file_filter = None problems = [] for f in input_api.AffectedSourceFiles(source_file_filter): if f.Action() == 'D': continue for _, line in f.ChangedContents(): if any(detect in line for detect in detection_list): problems.append(f.LocalPath()) return problems # to avoid this presubmit script triggering warnings files_to_skip = ['PRESUBMIT.py', 'PRESUBMIT_test.py'] problems = [] # NMF: any files with extensions .nmf or NMF _NMF_FILES = r'\.(nmf|NMF)$' problems += _CheckForDeprecatedTech( input_api, output_api, detection_list=[''], # any change to the file will trigger warning files_to_check=[r'.+%s' % _NMF_FILES]) # MANIFEST: any manifest.json that in its diff includes "app": _MANIFEST_FILES = r'(manifest\.json)$' problems += _CheckForDeprecatedTech( input_api, output_api, detection_list=['"app":'], files_to_check=[r'.*%s' % _MANIFEST_FILES]) # NaCl / PNaCl: any file that in its diff contains the strings in the list problems += _CheckForDeprecatedTech( input_api, output_api, detection_list=['config=nacl', 'enable-nacl', 'cpu=pnacl', 'nacl_io'], files_to_skip=files_to_skip + [r"^native_client_sdk[\\/]"]) # PPAPI: any C/C++ file that in its diff includes a ppapi library problems += _CheckForDeprecatedTech( input_api, output_api, detection_list=['#include "ppapi', '#include tag, such as . This # is OK as well, because grd_helper ignores tags when loading .grd or # .grdp files. if file_path.endswith('.grdp'): if f.OldContents(): old_id_to_msg_map = grd_helper.GetGrdpMessagesFromString( '\n'.join(f.OldContents())) if f.NewContents(): new_id_to_msg_map = grd_helper.GetGrdpMessagesFromString( '\n'.join(f.NewContents())) else: file_dir = input_api.os_path.dirname(file_path) or '.' if f.OldContents(): old_id_to_msg_map = grd_helper.GetGrdMessages( StringIO('\n'.join(f.OldContents())), file_dir) if f.NewContents(): new_id_to_msg_map = grd_helper.GetGrdMessages( StringIO('\n'.join(f.NewContents())), file_dir) grd_name, ext = input_api.os_path.splitext( input_api.os_path.basename(file_path)) screenshots_dir = input_api.os_path.join( input_api.os_path.dirname(file_path), grd_name + ext.replace('.', '_')) # Compute added, removed and modified message IDs. old_ids = set(old_id_to_msg_map) new_ids = set(new_id_to_msg_map) added_ids = new_ids - old_ids removed_ids = old_ids - new_ids modified_ids = set([]) for key in old_ids.intersection(new_ids): if (old_id_to_msg_map[key].ContentsAsXml('', True) != new_id_to_msg_map[key].ContentsAsXml('', True)): # The message content itself changed. Require an updated screenshot. modified_ids.add(key) elif old_id_to_msg_map[key].attrs['meaning'] != \ new_id_to_msg_map[key].attrs['meaning']: # The message meaning changed. Ensure there is a screenshot for it. sha1_path = input_api.os_path.join(screenshots_dir, key + '.png.sha1') if sha1_path not in new_or_added_paths and not \ input_api.os_path.exists(sha1_path): # There is neither a previous screenshot nor is a new one added now. # Require a screenshot. modified_ids.add(key) if run_screenshot_check: # Check the screenshot directory for .png files. Warn if there is any. for png_path in affected_png_paths: if png_path.startswith(screenshots_dir): unnecessary_screenshots.append(png_path) for added_id in added_ids: _CheckScreenshotAdded(screenshots_dir, added_id) for modified_id in modified_ids: _CheckScreenshotAdded(screenshots_dir, modified_id) for removed_id in removed_ids: _CheckScreenshotRemoved(screenshots_dir, removed_id) # Check new and changed strings for ICU syntax errors. for key in added_ids.union(modified_ids): msg = new_id_to_msg_map[key].ContentsAsXml('', True) err = _ValidateIcuSyntax(msg, 0, []) if err is not None: icu_syntax_errors.append(str(key) + ': ' + str(err[0])) results = [] if run_screenshot_check: if unnecessary_screenshots: results.append( output_api.PresubmitError( 'Do not include actual screenshots in the changelist. Run ' 'tools/translate/upload_screenshots.py to upload them instead:', sorted(unnecessary_screenshots))) if missing_sha1: results.append( output_api.PresubmitError( 'You are adding or modifying UI strings.\n' 'To ensure the best translations, take screenshots of the relevant UI ' '(https://g.co/chrome/translation) and add these files to your ' 'changelist:', sorted(missing_sha1))) if unnecessary_sha1_files: results.append( output_api.PresubmitError( 'You removed strings associated with these files. Remove:', sorted(unnecessary_sha1_files))) else: results.append( output_api.PresubmitPromptOrNotify('Skipping translation ' 'screenshots check.')) if icu_syntax_errors: results.append( output_api.PresubmitPromptWarning( 'ICU syntax errors were found in the following strings (problems or ' 'feedback? Contact rainhard@chromium.org):', items=icu_syntax_errors)) return results def CheckTranslationExpectations(input_api, output_api, repo_root=None, translation_expectations_path=None, grd_files=None): import sys affected_grds = [ f for f in input_api.AffectedFiles() if (f.LocalPath().endswith('.grd') or f.LocalPath().endswith('.grdp')) ] if not affected_grds: return [] try: old_sys_path = sys.path sys.path = sys.path + [ input_api.os_path.join(input_api.PresubmitLocalPath(), 'tools', 'translation') ] from helper import git_helper from helper import translation_helper finally: sys.path = old_sys_path # Check that translation expectations can be parsed and we can get a list of # translatable grd files. |repo_root| and |translation_expectations_path| are # only passed by tests. if not repo_root: repo_root = input_api.PresubmitLocalPath() if not translation_expectations_path: translation_expectations_path = input_api.os_path.join( repo_root, 'tools', 'gritsettings', 'translation_expectations.pyl') if not grd_files: grd_files = git_helper.list_grds_in_repository(repo_root) # Ignore bogus grd files used only for testing # ui/webui/resources/tools/generate_grd.py. ignore_path = input_api.os_path.join('ui', 'webui', 'resources', 'tools', 'tests') grd_files = [p for p in grd_files if ignore_path not in p] try: translation_helper.get_translatable_grds( repo_root, grd_files, translation_expectations_path) except Exception as e: return [ output_api.PresubmitNotifyResult( 'Failed to get a list of translatable grd files. This happens when:\n' ' - One of the modified grd or grdp files cannot be parsed or\n' ' - %s is not updated.\n' 'Stack:\n%s' % (translation_expectations_path, str(e))) ] return [] def CheckStableMojomChanges(input_api, output_api): """Changes to [Stable] mojom types must preserve backward-compatibility.""" changed_mojoms = input_api.AffectedFiles( include_deletes=True, file_filter=lambda f: f.LocalPath().endswith(('.mojom'))) if not changed_mojoms or input_api.no_diffs: return [] delta = [] for mojom in changed_mojoms: delta.append({ 'filename': mojom.LocalPath(), 'old': '\n'.join(mojom.OldContents()) or None, 'new': '\n'.join(mojom.NewContents()) or None, }) process = input_api.subprocess.Popen([ input_api.python3_executable, input_api.os_path.join( input_api.PresubmitLocalPath(), 'mojo', 'public', 'tools', 'mojom', 'check_stable_mojom_compatibility.py'), '--src-root', input_api.PresubmitLocalPath() ], stdin=input_api.subprocess.PIPE, stdout=input_api.subprocess.PIPE, stderr=input_api.subprocess.PIPE, universal_newlines=True) (x, error) = process.communicate(input=input_api.json.dumps(delta)) if process.returncode: return [ output_api.PresubmitError( 'One or more [Stable] mojom definitions appears to have been changed ' 'in a way that is not backward-compatible.', long_text=error) ] return [] def CheckDeprecationOfPreferences(input_api, output_api): """Removing a preference should come with a deprecation.""" def FilterFile(affected_file): """Accept only .cc files and the like.""" file_inclusion_pattern = [r'.+%s' % _IMPLEMENTATION_EXTENSIONS] files_to_skip = (_EXCLUDED_PATHS + _TEST_CODE_EXCLUDED_PATHS + input_api.DEFAULT_FILES_TO_SKIP) return input_api.FilterSourceFile( affected_file, files_to_check=file_inclusion_pattern, files_to_skip=files_to_skip) def ModifiedLines(affected_file): """Returns a list of tuples (line number, line text) of added and removed lines. Deleted lines share the same line number as the previous line. This relies on the scm diff output describing each changed code section with a line of the form ^@@ , , @@$ """ line_num = 0 modified_lines = [] for line in affected_file.GenerateScmDiff().splitlines(): # Extract of the patch fragment (see format above). m = input_api.re.match(r'^@@ [0-9\,\+\-]+ \+([0-9]+)\,[0-9]+ @@', line) if m: line_num = int(m.groups(1)[0]) continue if ((line.startswith('+') and not line.startswith('++')) or (line.startswith('-') and not line.startswith('--'))): modified_lines.append((line_num, line)) if not line.startswith('-'): line_num += 1 return modified_lines def FindLineWith(lines, needle): """Returns the line number (i.e. index + 1) in `lines` containing `needle`. If 0 or >1 lines contain `needle`, -1 is returned. """ matching_line_numbers = [ # + 1 for 1-based counting of line numbers. i + 1 for i, line in enumerate(lines) if needle in line ] return matching_line_numbers[0] if len( matching_line_numbers) == 1 else -1 def ModifiedPrefMigration(affected_file): """Returns whether the MigrateObsolete.*Pref functions were modified.""" # Determine first and last lines of MigrateObsolete.*Pref functions. new_contents = affected_file.NewContents() range_1 = (FindLineWith(new_contents, 'BEGIN_MIGRATE_OBSOLETE_LOCAL_STATE_PREFS'), FindLineWith(new_contents, 'END_MIGRATE_OBSOLETE_LOCAL_STATE_PREFS')) range_2 = (FindLineWith(new_contents, 'BEGIN_MIGRATE_OBSOLETE_PROFILE_PREFS'), FindLineWith(new_contents, 'END_MIGRATE_OBSOLETE_PROFILE_PREFS')) if (-1 in range_1 + range_2): raise Exception( 'Broken .*MIGRATE_OBSOLETE_.*_PREFS markers in browser_prefs.cc.' ) # Check whether any of the modified lines are part of the # MigrateObsolete.*Pref functions. for line_nr, line in ModifiedLines(affected_file): if (range_1[0] <= line_nr <= range_1[1] or range_2[0] <= line_nr <= range_2[1]): return True return False register_pref_pattern = input_api.re.compile(r'Register.+Pref') browser_prefs_file_pattern = input_api.re.compile( r'chrome/browser/prefs/browser_prefs.cc') changes = input_api.AffectedFiles(include_deletes=True, file_filter=FilterFile) potential_problems = [] for f in changes: for line in f.GenerateScmDiff().splitlines(): # Check deleted lines for pref registrations. if (line.startswith('-') and not line.startswith('--') and register_pref_pattern.search(line)): potential_problems.append('%s: %s' % (f.LocalPath(), line)) if browser_prefs_file_pattern.search(f.LocalPath()): # If the developer modified the MigrateObsolete.*Prefs() functions, we # assume that they knew that they have to deprecate preferences and don't # warn. try: if ModifiedPrefMigration(f): return [] except Exception as e: return [output_api.PresubmitError(str(e))] if potential_problems: return [ output_api.PresubmitPromptWarning( 'Discovered possible removal of preference registrations.\n\n' 'Please make sure to properly deprecate preferences by clearing their\n' 'value for a couple of milestones before finally removing the code.\n' 'Otherwise data may stay in the preferences files forever. See\n' 'Migrate*Prefs() in chrome/browser/prefs/browser_prefs.cc and\n' 'chrome/browser/prefs/README.md for examples.\n' 'This may be a false positive warning (e.g. if you move preference\n' 'registrations to a different place).\n', potential_problems) ] return [] def CheckConsistentGrdChanges(input_api, output_api): """Changes to GRD files must be consistent for tools to read them.""" changed_grds = input_api.AffectedFiles( include_deletes=False, file_filter=lambda f: f.LocalPath().endswith(('.grd'))) errors = [] invalid_file_regexes = [(input_api.re.compile(matcher), msg) for matcher, msg in _INVALID_GRD_FILE_LINE] for grd in changed_grds: for i, line in enumerate(grd.NewContents()): for matcher, msg in invalid_file_regexes: if matcher.search(line): errors.append( output_api.PresubmitError( 'Problem on {grd}:{i} - {msg}'.format( grd=grd.LocalPath(), i=i + 1, msg=msg))) return errors def CheckMPArchApiUsage(input_api, output_api): """CC the MPArch watchlist if the CL uses an API that is ambiguous in the presence of MPArch features such as bfcache, prerendering, and fenced frames. """ # Only consider top-level directories that (1) can use content APIs or # problematic blink APIs, (2) apply to desktop or android chrome, and (3) # are known to have a significant number of uses of the APIs of concern. files_to_check = ( r'^(chrome|components|content|extensions|third_party[\\/]blink[\\/]renderer)[\\/].+%s' % _IMPLEMENTATION_EXTENSIONS, r'^(chrome|components|content|extensions|third_party[\\/]blink[\\/]renderer)[\\/].+%s' % _HEADER_EXTENSIONS, ) files_to_skip = (_EXCLUDED_PATHS + _TEST_CODE_EXCLUDED_PATHS + input_api.DEFAULT_FILES_TO_SKIP) source_file_filter = lambda f: input_api.FilterSourceFile( f, files_to_check=files_to_check, files_to_skip=files_to_skip) # Here we list the classes/methods we're monitoring. For the "fyi" cases, # we add the CL to the watchlist, but we don't omit a warning or have it be # included in the triage rotation. # Note that since these are are just regular expressions and we don't have # the compiler's AST, we could have spurious matches (e.g. an unrelated class # could have a method named IsInMainFrame). fyi_concerning_class_pattern = input_api.re.compile( r'WebContentsObserver|WebContentsUserData') # A subset of WebContentsObserver overrides where there's particular risk for # confusing tab and page level operations and data (e.g. incorrectly # resetting page state in DidFinishNavigation). fyi_concerning_wco_methods = [ 'DidStartNavigation', 'ReadyToCommitNavigation', 'DidFinishNavigation', 'RenderViewReady', 'RenderViewDeleted', 'RenderViewHostChanged', 'DOMContentLoaded', 'DidFinishLoad', ] concerning_nav_handle_methods = [ 'IsInMainFrame', ] concerning_web_contents_methods = [ 'FromRenderFrameHost', 'FromRenderViewHost', ] fyi_concerning_web_contents_methods = [ 'GetRenderViewHost', ] concerning_rfh_methods = [ 'GetParent', 'GetMainFrame', ] fyi_concerning_rfh_methods = [ 'GetFrameTreeNodeId', ] concerning_rfhi_methods = [ 'is_main_frame', ] concerning_ftn_methods = [ 'IsMainFrame', ] concerning_blink_frame_methods = [ 'IsCrossOriginToNearestMainFrame', ] concerning_method_pattern = input_api.re.compile(r'(' + r'|'.join( item for sublist in [ concerning_nav_handle_methods, concerning_web_contents_methods, concerning_rfh_methods, concerning_rfhi_methods, concerning_ftn_methods, concerning_blink_frame_methods, ] for item in sublist) + r')\(') fyi_concerning_method_pattern = input_api.re.compile(r'(' + r'|'.join( item for sublist in [ fyi_concerning_wco_methods, fyi_concerning_web_contents_methods, fyi_concerning_rfh_methods, ] for item in sublist) + r')\(') used_apis = set() used_fyi_methods = False for f in input_api.AffectedFiles(include_deletes=False, file_filter=source_file_filter): for line_num, line in f.ChangedContents(): fyi_class_match = fyi_concerning_class_pattern.search(line) if fyi_class_match: used_fyi_methods = True fyi_method_match = fyi_concerning_method_pattern.search(line) if fyi_method_match: used_fyi_methods = True method_match = concerning_method_pattern.search(line) if method_match: used_apis.add(method_match[1]) if not used_apis: if used_fyi_methods: output_api.AppendCC('mparch-reviews+watchfyi@chromium.org') return [] output_api.AppendCC('mparch-reviews+watch@chromium.org') message = ('This change uses API(s) that are ambiguous in the presence of ' 'MPArch features such as bfcache, prerendering, and fenced ' 'frames.') explanation = ( 'Please double check whether new code assumes that a WebContents only ' 'contains a single page at a time. Notably, checking whether a frame ' 'is the \"main frame\" is not specific enough to determine whether it ' 'corresponds to the document reflected in the omnibox. A WebContents ' 'may have additional main frames for prerendered pages, bfcached ' 'pages, fenced frames, etc. ' 'See this doc [1] and the comments on the individual APIs ' 'for guidance and this doc [2] for context. The MPArch review ' 'watchlist has been CC\'d on this change to help identify any issues.\n' '[1] https://docs.google.com/document/d/13l16rWTal3o5wce4i0RwdpMP5ESELLKr439Faj2BBRo/edit?usp=sharing\n' '[2] https://docs.google.com/document/d/1NginQ8k0w3znuwTiJ5qjYmBKgZDekvEPC22q0I4swxQ/edit?usp=sharing' ) return [ output_api.PresubmitNotifyResult(message, items=list(used_apis), long_text=explanation) ] def CheckAssertAshOnlyCode(input_api, output_api): """Errors if a BUILD.gn file in an ash/ directory doesn't include assert(is_chromeos_ash). """ def FileFilter(affected_file): """Includes directories known to be Ash only.""" return input_api.FilterSourceFile( affected_file, files_to_check=( r'^ash/.*BUILD\.gn', # Top-level src/ash/. r'.*/ash/.*BUILD\.gn'), # Any path component. files_to_skip=(input_api.DEFAULT_FILES_TO_SKIP)) errors = [] pattern = input_api.re.compile(r'assert\(is_chromeos_ash') for f in input_api.AffectedFiles(include_deletes=False, file_filter=FileFilter): if (not pattern.search(input_api.ReadFile(f))): errors.append( output_api.PresubmitError( 'Please add assert(is_chromeos_ash) to %s. If that\'s not ' 'possible, please create and issue and add a comment such ' 'as:\n # TODO(https://crbug.com/XXX): add ' 'assert(is_chromeos_ash) when ...' % f.LocalPath())) return errors def _IsRendererOnlyCppFile(input_api, affected_file): path = affected_file.LocalPath() if not _IsCPlusPlusFile(input_api, path): return False # Any code under a "renderer" subdirectory is assumed to be Renderer-only. if "/renderer/" in path: return True # Blink's public/web API is only used/included by Renderer-only code. Note # that public/platform API may be used in non-Renderer processes (e.g. there # are some includes in code used by Utility, PDF, or Plugin processes). if "/blink/public/web/" in path: return True # We assume that everything else may be used outside of Renderer processes. return False # TODO(https://crbug.com/1273182): Remove these checks, once they are replaced # by the Chromium Clang Plugin (which will be preferable because it will # 1) report errors earlier - at compile-time and 2) cover more rules). def CheckRawPtrUsage(input_api, output_api): """Rough checks that raw_ptr usage guidelines are followed.""" errors = [] # The regex below matches "raw_ptr<" following a word boundary, but not in a # C++ comment. raw_ptr_matcher = input_api.re.compile(r'^((?!//).)*\braw_ptr<') file_filter = lambda f: _IsRendererOnlyCppFile(input_api, f) for f, line_num, line in input_api.RightHandSideLines(file_filter): if raw_ptr_matcher.search(line): errors.append( output_api.PresubmitError( 'Problem on {path}:{line} - '\ 'raw_ptr should not be used in Renderer-only code '\ '(as documented in the "Pointers to unprotected memory" '\ 'section in //base/memory/raw_ptr.md)'.format( path=f.LocalPath(), line=line_num))) return errors def CheckPythonShebang(input_api, output_api): """Checks that python scripts use #!/usr/bin/env instead of hardcoding a system-wide python. """ errors = [] sources = lambda affected_file: input_api.FilterSourceFile( affected_file, files_to_skip=((_THIRD_PARTY_EXCEPT_BLINK, r'third_party/blink/web_tests/external/') + input_api. DEFAULT_FILES_TO_SKIP), files_to_check=[r'.*\.py$']) for f in input_api.AffectedSourceFiles(sources): for line_num, line in f.ChangedContents(): if line_num == 1 and line.startswith('#!/usr/bin/python'): errors.append(f.LocalPath()) break result = [] for file in errors: result.append( output_api.PresubmitError( "Please use '#!/usr/bin/env python/2/3' as the shebang of %s" % file)) return result def CheckBatchAnnotation(input_api, output_api): """Checks that tests have either @Batch or @DoNotBatch annotation. If this is not an instrumentation test, disregard.""" batch_annotation = input_api.re.compile(r'^\s*@Batch') do_not_batch_annotation = input_api.re.compile(r'^\s*@DoNotBatch') robolectric_test = input_api.re.compile(r'[rR]obolectric') test_class_declaration = input_api.re.compile(r'^\s*public\sclass.*Test') uiautomator_test = input_api.re.compile(r'[uU]i[aA]utomator') missing_annotation_errors = [] extra_annotation_errors = [] def _FilterFile(affected_file): return input_api.FilterSourceFile( affected_file, files_to_skip=input_api.DEFAULT_FILES_TO_SKIP, files_to_check=[r'.*Test\.java$']) for f in input_api.AffectedSourceFiles(_FilterFile): batch_matched = None do_not_batch_matched = None is_instrumentation_test = True for line in f.NewContents(): if robolectric_test.search(line) or uiautomator_test.search(line): # Skip Robolectric and UiAutomator tests. is_instrumentation_test = False break if not batch_matched: batch_matched = batch_annotation.search(line) if not do_not_batch_matched: do_not_batch_matched = do_not_batch_annotation.search(line) test_class_declaration_matched = test_class_declaration.search( line) if test_class_declaration_matched: break if (is_instrumentation_test and not batch_matched and not do_not_batch_matched): missing_annotation_errors.append(str(f.LocalPath())) if (not is_instrumentation_test and (batch_matched or do_not_batch_matched)): extra_annotation_errors.append(str(f.LocalPath())) results = [] if missing_annotation_errors: results.append( output_api.PresubmitPromptWarning( """ Instrumentation tests should use either @Batch or @DoNotBatch. If tests are not safe to run in batch, please use @DoNotBatch with reasons. """, missing_annotation_errors)) if extra_annotation_errors: results.append( output_api.PresubmitPromptWarning( """ Robolectric tests do not need a @Batch or @DoNotBatch annotations. """, extra_annotation_errors)) return results