#!/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 absolute_import 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. # runtime/references: As of May 2020 the C++ style guide suggests using # references for out parameters, see # https://google.github.io/styleguide/cppguide.html#Inputs_and_Outputs. LINT_RULES = """ -build/header_guard -build/include_what_you_use -readability/fn_size -readability/multiline_comment -runtime/references -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())