current/deps/v8/tools/v8_presubmit.py
#!/usr/bin/env python
#
# Copyright 2012 the V8 project authors. All rights reserved.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# for py2/py3 compatibility
from __future__ import print_function
try:
import hashlib
md5er = hashlib.md5
except ImportError as e:
import md5
md5er = md5.new
import json
import optparse
import os
from os.path import abspath, join, dirname, basename, exists
import pickle
import re
import sys
import subprocess
import multiprocessing
from subprocess import PIPE
from testrunner.local import statusfile
from testrunner.local import testsuite
from testrunner.local import utils
# Special LINT rules diverging from default and reason.
# build/header_guard: Our guards have the form "V8_FOO_H_", not "SRC_FOO_H_".
# We now run our own header guard check in PRESUBMIT.py.
# build/include_what_you_use: Started giving false positives for variables
# named "string" and "map" assuming that you needed to include STL headers.
LINT_RULES = """
-build/header_guard
-build/include_what_you_use
-readability/fn_size
-readability/multiline_comment
-whitespace/comments
""".split()
LINT_OUTPUT_PATTERN = re.compile(r'^.+[:(]\d+[:)]|^Done processing')
FLAGS_LINE = re.compile("//\s*Flags:.*--([A-z0-9-])+_[A-z0-9].*\n")
ASSERT_OPTIMIZED_PATTERN = re.compile("assertOptimized")
FLAGS_ENABLE_OPT = re.compile("//\s*Flags:.*--opt[^-].*\n")
ASSERT_UNOPTIMIZED_PATTERN = re.compile("assertUnoptimized")
FLAGS_NO_ALWAYS_OPT = re.compile("//\s*Flags:.*--no-?always-opt.*\n")
TOOLS_PATH = dirname(abspath(__file__))
def CppLintWorker(command):
try:
process = subprocess.Popen(command, stderr=subprocess.PIPE)
process.wait()
out_lines = ""
error_count = -1
while True:
out_line = process.stderr.readline()
if out_line == '' and process.poll() != None:
if error_count == -1:
print("Failed to process %s" % command.pop())
return 1
break
m = LINT_OUTPUT_PATTERN.match(out_line)
if m:
out_lines += out_line
error_count += 1
sys.stdout.write(out_lines)
return error_count
except KeyboardInterrupt:
process.kill()
except:
print('Error running cpplint.py. Please make sure you have depot_tools' +
' in your $PATH. Lint check skipped.')
process.kill()
def TorqueLintWorker(command):
try:
process = subprocess.Popen(command, stderr=subprocess.PIPE)
process.wait()
out_lines = ""
error_count = 0
while True:
out_line = process.stderr.readline()
if out_line == '' and process.poll() != None:
break
out_lines += out_line
error_count += 1
sys.stdout.write(out_lines)
if error_count != 0:
sys.stdout.write(
"warning: formatting and overwriting unformatted Torque files\n")
return error_count
except KeyboardInterrupt:
process.kill()
except:
print('Error running format-torque.py')
process.kill()
class FileContentsCache(object):
def __init__(self, sums_file_name):
self.sums = {}
self.sums_file_name = sums_file_name
def Load(self):
try:
sums_file = None
try:
sums_file = open(self.sums_file_name, 'r')
self.sums = pickle.load(sums_file)
except:
# Cannot parse pickle for any reason. Not much we can do about it.
pass
finally:
if sums_file:
sums_file.close()
def Save(self):
try:
sums_file = open(self.sums_file_name, 'w')
pickle.dump(self.sums, sums_file)
except:
# Failed to write pickle. Try to clean-up behind us.
if sums_file:
sums_file.close()
try:
os.unlink(self.sums_file_name)
except:
pass
finally:
sums_file.close()
def FilterUnchangedFiles(self, files):
changed_or_new = []
for file in files:
try:
handle = open(file, "r")
file_sum = md5er(handle.read()).digest()
if not file in self.sums or self.sums[file] != file_sum:
changed_or_new.append(file)
self.sums[file] = file_sum
finally:
handle.close()
return changed_or_new
def RemoveFile(self, file):
if file in self.sums:
self.sums.pop(file)
class SourceFileProcessor(object):
"""
Utility class that can run through a directory structure, find all relevant
files and invoke a custom check on the files.
"""
def RunOnPath(self, path):
"""Runs processor on all files under the given path."""
all_files = []
for file in self.GetPathsToSearch():
all_files += self.FindFilesIn(join(path, file))
return self.ProcessFiles(all_files)
def RunOnFiles(self, files):
"""Runs processor only on affected files."""
# Helper for getting directory pieces.
dirs = lambda f: dirname(f).split(os.sep)
# Path offsets where to look (to be in sync with RunOnPath).
# Normalize '.' to check for it with str.startswith.
search_paths = [('' if p == '.' else p) for p in self.GetPathsToSearch()]
all_files = [
f.AbsoluteLocalPath()
for f in files
if (not self.IgnoreFile(f.LocalPath()) and
self.IsRelevant(f.LocalPath()) and
all(not self.IgnoreDir(d) for d in dirs(f.LocalPath())) and
any(map(f.LocalPath().startswith, search_paths)))
]
return self.ProcessFiles(all_files)
def IgnoreDir(self, name):
return (name.startswith('.') or
name in ('buildtools', 'data', 'gmock', 'gtest', 'kraken',
'octane', 'sunspider', 'traces-arm64'))
def IgnoreFile(self, name):
return name.startswith('.')
def FindFilesIn(self, path):
result = []
for (root, dirs, files) in os.walk(path):
for ignored in [x for x in dirs if self.IgnoreDir(x)]:
dirs.remove(ignored)
for file in files:
if not self.IgnoreFile(file) and self.IsRelevant(file):
result.append(join(root, file))
return result
class CacheableSourceFileProcessor(SourceFileProcessor):
"""Utility class that allows caching ProcessFiles() method calls.
In order to use it, create a ProcessFilesWithoutCaching method that returns
the files requiring intervention after processing the source files.
"""
def __init__(self, use_cache, cache_file_path, file_type):
self.use_cache = use_cache
self.cache_file_path = cache_file_path
self.file_type = file_type
def GetProcessorWorker(self):
"""Expected to return the worker function to run the formatter."""
raise NotImplementedError
def GetProcessorScript(self):
"""Expected to return a tuple
(path to the format processor script, list of arguments)."""
raise NotImplementedError
def GetProcessorCommand(self):
format_processor, options = self.GetProcessorScript()
if not format_processor:
print('Could not find the formatter for % files' % self.file_type)
sys.exit(1)
command = [sys.executable, format_processor]
command.extend(options)
return command
def ProcessFiles(self, files):
if self.use_cache:
cache = FileContentsCache(self.cache_file_path)
cache.Load()
files = cache.FilterUnchangedFiles(files)
if len(files) == 0:
print('No changes in %s files detected. Skipping check' % self.file_type)
return True
files_requiring_changes = self.DetectFilesToChange(files)
print (
'Total %s files found that require formatting: %d' %
(self.file_type, len(files_requiring_changes)))
if self.use_cache:
for file in files_requiring_changes:
cache.RemoveFile(file)
cache.Save()
return files_requiring_changes == []
def DetectFilesToChange(self, files):
command = self.GetProcessorCommand()
worker = self.GetProcessorWorker()
commands = [command + [file] for file in files]
count = multiprocessing.cpu_count()
pool = multiprocessing.Pool(count)
try:
results = pool.map_async(worker, commands).get(timeout=240)
except KeyboardInterrupt:
print("\nCaught KeyboardInterrupt, terminating workers.")
pool.terminate()
pool.join()
sys.exit(1)
unformatted_files = []
for index, errors in enumerate(results):
if errors > 0:
unformatted_files.append(files[index])
return unformatted_files
class CppLintProcessor(CacheableSourceFileProcessor):
"""
Lint files to check that they follow the google code style.
"""
def __init__(self, use_cache=True):
super(CppLintProcessor, self).__init__(
use_cache=use_cache, cache_file_path='.cpplint-cache', file_type='C/C++')
def IsRelevant(self, name):
return name.endswith('.cc') or name.endswith('.h')
def IgnoreDir(self, name):
return (super(CppLintProcessor, self).IgnoreDir(name)
or (name == 'third_party'))
IGNORE_LINT = [
'export-template.h',
'flag-definitions.h',
'gay-fixed.cc',
'gay-precision.cc',
'gay-shortest.cc',
]
def IgnoreFile(self, name):
return (super(CppLintProcessor, self).IgnoreFile(name)
or (name in CppLintProcessor.IGNORE_LINT))
def GetPathsToSearch(self):
dirs = ['include', 'samples', 'src']
test_dirs = ['cctest', 'common', 'fuzzer', 'inspector', 'unittests']
return dirs + [join('test', dir) for dir in test_dirs]
def GetProcessorWorker(self):
return CppLintWorker
def GetProcessorScript(self):
filters = ','.join([n for n in LINT_RULES])
arguments = ['--filter', filters]
for path in [TOOLS_PATH] + os.environ["PATH"].split(os.pathsep):
path = path.strip('"')
cpplint = os.path.join(path, 'cpplint.py')
if os.path.isfile(cpplint):
return cpplint, arguments
return None, arguments
class TorqueLintProcessor(CacheableSourceFileProcessor):
"""
Check .tq files to verify they follow the Torque style guide.
"""
def __init__(self, use_cache=True):
super(TorqueLintProcessor, self).__init__(
use_cache=use_cache, cache_file_path='.torquelint-cache',
file_type='Torque')
def IsRelevant(self, name):
return name.endswith('.tq')
def GetPathsToSearch(self):
dirs = ['third_party', 'src']
test_dirs = ['torque']
return dirs + [join('test', dir) for dir in test_dirs]
def GetProcessorWorker(self):
return TorqueLintWorker
def GetProcessorScript(self):
torque_tools = os.path.join(TOOLS_PATH, "torque")
torque_path = os.path.join(torque_tools, "format-torque.py")
arguments = ["-il"]
if os.path.isfile(torque_path):
return torque_path, arguments
return None, arguments
COPYRIGHT_HEADER_PATTERN = re.compile(
r'Copyright [\d-]*20[0-2][0-9] the V8 project authors. All rights reserved.')
class SourceProcessor(SourceFileProcessor):
"""
Check that all files include a copyright notice and no trailing whitespaces.
"""
RELEVANT_EXTENSIONS = ['.js', '.cc', '.h', '.py', '.c', '.status', '.tq', '.g4']
def __init__(self):
self.runtime_function_call_pattern = self.CreateRuntimeFunctionCallMatcher()
def CreateRuntimeFunctionCallMatcher(self):
runtime_h_path = join(dirname(TOOLS_PATH), 'src/runtime/runtime.h')
pattern = re.compile(r'\s+F\(([^,]*),.*\)')
runtime_functions = []
with open(runtime_h_path) as f:
for line in f.readlines():
m = pattern.match(line)
if m:
runtime_functions.append(m.group(1))
if len(runtime_functions) < 250:
print ("Runtime functions list is suspiciously short. "
"Consider updating the presubmit script.")
sys.exit(1)
str = '(\%\s+(' + '|'.join(runtime_functions) + '))[\s\(]'
return re.compile(str)
# Overwriting the one in the parent class.
def FindFilesIn(self, path):
if os.path.exists(path+'/.git'):
output = subprocess.Popen('git ls-files --full-name',
stdout=PIPE, cwd=path, shell=True)
result = []
for file in output.stdout.read().split():
for dir_part in os.path.dirname(file).replace(os.sep, '/').split('/'):
if self.IgnoreDir(dir_part):
break
else:
if (self.IsRelevant(file) and os.path.exists(file)
and not self.IgnoreFile(file)):
result.append(join(path, file))
if output.wait() == 0:
return result
return super(SourceProcessor, self).FindFilesIn(path)
def IsRelevant(self, name):
for ext in SourceProcessor.RELEVANT_EXTENSIONS:
if name.endswith(ext):
return True
return False
def GetPathsToSearch(self):
return ['.']
def IgnoreDir(self, name):
return (super(SourceProcessor, self).IgnoreDir(name) or
name in ('third_party', 'out', 'obj', 'DerivedSources'))
IGNORE_COPYRIGHTS = ['box2d.js',
'cpplint.py',
'copy.js',
'corrections.js',
'crypto.js',
'daemon.py',
'earley-boyer.js',
'fannkuch.js',
'fasta.js',
'injected-script.cc',
'injected-script.h',
'libraries.cc',
'libraries-empty.cc',
'lua_binarytrees.js',
'meta-123.js',
'memops.js',
'poppler.js',
'primes.js',
'raytrace.js',
'regexp-pcre.js',
'resources-123.js',
'sqlite.js',
'sqlite-change-heap.js',
'sqlite-pointer-masking.js',
'sqlite-safe-heap.js',
'v8-debugger-script.h',
'v8-inspector-impl.cc',
'v8-inspector-impl.h',
'v8-runtime-agent-impl.cc',
'v8-runtime-agent-impl.h',
'gnuplot-4.6.3-emscripten.js',
'zlib.js']
IGNORE_TABS = IGNORE_COPYRIGHTS + ['unicode-test.js', 'html-comments.js']
IGNORE_COPYRIGHTS_DIRECTORIES = [
"test/test262/local-tests",
"test/mjsunit/wasm/bulk-memory-spec",
]
def EndOfDeclaration(self, line):
return line == "}" or line == "};"
def StartOfDeclaration(self, line):
return line.find("//") == 0 or \
line.find("/*") == 0 or \
line.find(") {") != -1
def ProcessContents(self, name, contents):
result = True
base = basename(name)
if not base in SourceProcessor.IGNORE_TABS:
if '\t' in contents:
print("%s contains tabs" % name)
result = False
if not base in SourceProcessor.IGNORE_COPYRIGHTS and \
not any(ignore_dir in name for ignore_dir
in SourceProcessor.IGNORE_COPYRIGHTS_DIRECTORIES):
if not COPYRIGHT_HEADER_PATTERN.search(contents):
print("%s is missing a correct copyright header." % name)
result = False
if ' \n' in contents or contents.endswith(' '):
line = 0
lines = []
parts = contents.split(' \n')
if not contents.endswith(' '):
parts.pop()
for part in parts:
line += part.count('\n') + 1
lines.append(str(line))
linenumbers = ', '.join(lines)
if len(lines) > 1:
print("%s has trailing whitespaces in lines %s." % (name, linenumbers))
else:
print("%s has trailing whitespaces in line %s." % (name, linenumbers))
result = False
if not contents.endswith('\n') or contents.endswith('\n\n'):
print("%s does not end with a single new line." % name)
result = False
# Sanitize flags for fuzzer.
if (".js" in name or ".mjs" in name) and ("mjsunit" in name or "debugger" in name):
match = FLAGS_LINE.search(contents)
if match:
print("%s Flags should use '-' (not '_')" % name)
result = False
if (not "mjsunit/mjsunit.js" in name and
not "mjsunit/mjsunit_numfuzz.js" in name):
if ASSERT_OPTIMIZED_PATTERN.search(contents) and \
not FLAGS_ENABLE_OPT.search(contents):
print("%s Flag --opt should be set if " \
"assertOptimized() is used" % name)
result = False
if ASSERT_UNOPTIMIZED_PATTERN.search(contents) and \
not FLAGS_NO_ALWAYS_OPT.search(contents):
print("%s Flag --no-always-opt should be set if " \
"assertUnoptimized() is used" % name)
result = False
match = self.runtime_function_call_pattern.search(contents)
if match:
print("%s has unexpected spaces in a runtime call '%s'" % (name, match.group(1)))
result = False
return result
def ProcessFiles(self, files):
success = True
violations = 0
for file in files:
try:
handle = open(file)
contents = handle.read()
if len(contents) > 0 and not self.ProcessContents(file, contents):
success = False
violations += 1
finally:
handle.close()
print("Total violating files: %s" % violations)
return success
def _CheckStatusFileForDuplicateKeys(filepath):
comma_space_bracket = re.compile(", *]")
lines = []
with open(filepath) as f:
for line in f.readlines():
# Skip all-comment lines.
if line.lstrip().startswith("#"): continue
# Strip away comments at the end of the line.
comment_start = line.find("#")
if comment_start != -1:
line = line[:comment_start]
line = line.strip()
# Strip away trailing commas within the line.
line = comma_space_bracket.sub("]", line)
if len(line) > 0:
lines.append(line)
# Strip away trailing commas at line ends. Ugh.
for i in range(len(lines) - 1):
if (lines[i].endswith(",") and len(lines[i + 1]) > 0 and
lines[i + 1][0] in ("}", "]")):
lines[i] = lines[i][:-1]
contents = "\n".join(lines)
# JSON wants double-quotes.
contents = contents.replace("'", '"')
# Fill in keywords (like PASS, SKIP).
for key in statusfile.KEYWORDS:
contents = re.sub(r"\b%s\b" % key, "\"%s\"" % key, contents)
status = {"success": True}
def check_pairs(pairs):
keys = {}
for key, value in pairs:
if key in keys:
print("%s: Error: duplicate key %s" % (filepath, key))
status["success"] = False
keys[key] = True
json.loads(contents, object_pairs_hook=check_pairs)
return status["success"]
class StatusFilesProcessor(SourceFileProcessor):
"""Checks status files for incorrect syntax and duplicate keys."""
def IsRelevant(self, name):
# Several changes to files under the test directories could impact status
# files.
return True
def GetPathsToSearch(self):
return ['test', 'tools/testrunner']
def ProcessFiles(self, files):
success = True
for status_file_path in sorted(self._GetStatusFiles(files)):
success &= statusfile.PresubmitCheck(status_file_path)
success &= _CheckStatusFileForDuplicateKeys(status_file_path)
return success
def _GetStatusFiles(self, files):
test_path = join(dirname(TOOLS_PATH), 'test')
testrunner_path = join(TOOLS_PATH, 'testrunner')
status_files = set()
for file_path in files:
if file_path.startswith(testrunner_path):
for suitepath in os.listdir(test_path):
suitename = os.path.basename(suitepath)
status_file = os.path.join(
test_path, suitename, suitename + ".status")
if os.path.exists(status_file):
status_files.add(status_file)
return status_files
for file_path in files:
if file_path.startswith(test_path):
# Strip off absolute path prefix pointing to test suites.
pieces = file_path[len(test_path):].lstrip(os.sep).split(os.sep)
if pieces:
# Infer affected status file name. Only care for existing status
# files. Some directories under "test" don't have any.
if not os.path.isdir(join(test_path, pieces[0])):
continue
status_file = join(test_path, pieces[0], pieces[0] + ".status")
if not os.path.exists(status_file):
continue
status_files.add(status_file)
return status_files
def CheckDeps(workspace):
checkdeps_py = join(workspace, 'buildtools', 'checkdeps', 'checkdeps.py')
return subprocess.call([sys.executable, checkdeps_py, workspace]) == 0
def PyTests(workspace):
result = True
for script in [
join(workspace, 'tools', 'clusterfuzz', 'v8_foozzie_test.py'),
join(workspace, 'tools', 'release', 'test_scripts.py'),
join(workspace, 'tools', 'unittests', 'run_tests_test.py'),
join(workspace, 'tools', 'unittests', 'run_perf_test.py'),
join(workspace, 'tools', 'testrunner', 'testproc', 'variant_unittest.py'),
]:
print('Running ' + script)
result &= subprocess.call(
[sys.executable, script], stdout=subprocess.PIPE) == 0
return result
def GetOptions():
result = optparse.OptionParser()
result.add_option('--no-lint', help="Do not run cpplint", default=False,
action="store_true")
result.add_option('--no-linter-cache', help="Do not cache linter results",
default=False, action="store_true")
return result
def Main():
workspace = abspath(join(dirname(sys.argv[0]), '..'))
parser = GetOptions()
(options, args) = parser.parse_args()
success = True
print("Running checkdeps...")
success &= CheckDeps(workspace)
use_linter_cache = not options.no_linter_cache
if not options.no_lint:
print("Running C++ lint check...")
success &= CppLintProcessor(use_cache=use_linter_cache).RunOnPath(workspace)
print("Running Torque formatting check...")
success &= TorqueLintProcessor(use_cache=use_linter_cache).RunOnPath(
workspace)
print("Running copyright header, trailing whitespaces and " \
"two empty lines between declarations check...")
success &= SourceProcessor().RunOnPath(workspace)
print("Running status-files check...")
success &= StatusFilesProcessor().RunOnPath(workspace)
print("Running python tests...")
success &= PyTests(workspace)
if success:
return 0
else:
return 1
if __name__ == '__main__':
sys.exit(Main())