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507 lines
16 KiB
507 lines
16 KiB
#!/usr/bin/env python
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#
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# Copyright 2012 the V8 project authors. All rights reserved.
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials provided
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# with the distribution.
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# * Neither the name of Google Inc. nor the names of its
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# contributors may be used to endorse or promote products derived
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# from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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try:
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import hashlib
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md5er = hashlib.md5
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except ImportError, e:
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import md5
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md5er = md5.new
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import optparse
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import os
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from os.path import abspath, join, dirname, basename, exists
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import pickle
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import re
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import sys
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import subprocess
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import multiprocessing
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from subprocess import PIPE
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# Disabled LINT rules and reason.
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# build/include_what_you_use: Started giving false positives for variables
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# named "string" and "map" assuming that you needed to include STL headers.
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ENABLED_LINT_RULES = """
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build/class
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build/deprecated
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build/endif_comment
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build/forward_decl
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build/include_alpha
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build/include_order
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build/printf_format
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build/storage_class
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legal/copyright
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readability/boost
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readability/braces
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readability/casting
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readability/constructors
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readability/fn_size
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readability/function
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readability/multiline_comment
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readability/multiline_string
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readability/streams
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readability/todo
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readability/utf8
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runtime/arrays
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runtime/casting
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runtime/deprecated_fn
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runtime/explicit
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runtime/int
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runtime/memset
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runtime/mutex
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runtime/nonconf
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runtime/printf
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runtime/printf_format
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runtime/rtti
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runtime/sizeof
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runtime/string
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runtime/virtual
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runtime/vlog
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whitespace/blank_line
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whitespace/braces
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whitespace/comma
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whitespace/comments
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whitespace/ending_newline
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whitespace/indent
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whitespace/labels
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whitespace/line_length
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whitespace/newline
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whitespace/operators
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whitespace/parens
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whitespace/tab
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whitespace/todo
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""".split()
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# TODO(bmeurer): Fix and re-enable readability/check
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LINT_OUTPUT_PATTERN = re.compile(r'^.+[:(]\d+[:)]|^Done processing')
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FLAGS_LINE = re.compile("//\s*Flags:.*--([A-z0-9-])+_[A-z0-9].*\n")
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def CppLintWorker(command):
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try:
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process = subprocess.Popen(command, stderr=subprocess.PIPE)
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process.wait()
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out_lines = ""
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error_count = -1
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while True:
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out_line = process.stderr.readline()
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if out_line == '' and process.poll() != None:
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if error_count == -1:
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print "Failed to process %s" % command.pop()
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return 1
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break
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m = LINT_OUTPUT_PATTERN.match(out_line)
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if m:
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out_lines += out_line
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error_count += 1
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sys.stdout.write(out_lines)
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return error_count
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except KeyboardInterrupt:
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process.kill()
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except:
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print('Error running cpplint.py. Please make sure you have depot_tools' +
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' in your $PATH. Lint check skipped.')
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process.kill()
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class FileContentsCache(object):
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def __init__(self, sums_file_name):
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self.sums = {}
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self.sums_file_name = sums_file_name
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def Load(self):
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try:
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sums_file = None
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try:
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sums_file = open(self.sums_file_name, 'r')
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self.sums = pickle.load(sums_file)
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except:
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# Cannot parse pickle for any reason. Not much we can do about it.
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pass
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finally:
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if sums_file:
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sums_file.close()
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def Save(self):
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try:
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sums_file = open(self.sums_file_name, 'w')
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pickle.dump(self.sums, sums_file)
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except:
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# Failed to write pickle. Try to clean-up behind us.
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if sums_file:
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sums_file.close()
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try:
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os.unlink(self.sums_file_name)
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except:
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pass
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finally:
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sums_file.close()
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def FilterUnchangedFiles(self, files):
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changed_or_new = []
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for file in files:
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try:
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handle = open(file, "r")
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file_sum = md5er(handle.read()).digest()
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if not file in self.sums or self.sums[file] != file_sum:
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changed_or_new.append(file)
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self.sums[file] = file_sum
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finally:
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handle.close()
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return changed_or_new
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def RemoveFile(self, file):
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if file in self.sums:
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self.sums.pop(file)
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class SourceFileProcessor(object):
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"""
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Utility class that can run through a directory structure, find all relevant
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files and invoke a custom check on the files.
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"""
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def Run(self, path):
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all_files = []
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for file in self.GetPathsToSearch():
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all_files += self.FindFilesIn(join(path, file))
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if not self.ProcessFiles(all_files, path):
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return False
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return True
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def IgnoreDir(self, name):
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return (name.startswith('.') or
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name in ('buildtools', 'data', 'gmock', 'gtest', 'kraken',
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'octane', 'sunspider'))
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def IgnoreFile(self, name):
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return name.startswith('.')
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def FindFilesIn(self, path):
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result = []
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for (root, dirs, files) in os.walk(path):
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for ignored in [x for x in dirs if self.IgnoreDir(x)]:
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dirs.remove(ignored)
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for file in files:
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if not self.IgnoreFile(file) and self.IsRelevant(file):
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result.append(join(root, file))
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return result
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class CppLintProcessor(SourceFileProcessor):
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"""
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Lint files to check that they follow the google code style.
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"""
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def IsRelevant(self, name):
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return name.endswith('.cc') or name.endswith('.h')
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def IgnoreDir(self, name):
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return (super(CppLintProcessor, self).IgnoreDir(name)
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or (name == 'third_party'))
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IGNORE_LINT = ['flag-definitions.h']
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def IgnoreFile(self, name):
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return (super(CppLintProcessor, self).IgnoreFile(name)
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or (name in CppLintProcessor.IGNORE_LINT))
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def GetPathsToSearch(self):
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return ['src', 'include', 'samples', join('test', 'cctest'),
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join('test', 'unittests')]
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def GetCpplintScript(self, prio_path):
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for path in [prio_path] + os.environ["PATH"].split(os.pathsep):
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path = path.strip('"')
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cpplint = os.path.join(path, "cpplint.py")
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if os.path.isfile(cpplint):
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return cpplint
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return None
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def ProcessFiles(self, files, path):
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good_files_cache = FileContentsCache('.cpplint-cache')
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good_files_cache.Load()
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files = good_files_cache.FilterUnchangedFiles(files)
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if len(files) == 0:
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print 'No changes in files detected. Skipping cpplint check.'
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return True
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filt = '-,' + ",".join(['+' + n for n in ENABLED_LINT_RULES])
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command = [sys.executable, 'cpplint.py', '--filter', filt]
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cpplint = self.GetCpplintScript(join(path, "tools"))
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if cpplint is None:
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print('Could not find cpplint.py. Make sure '
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'depot_tools is installed and in the path.')
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sys.exit(1)
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command = [sys.executable, cpplint, '--filter', filt]
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commands = join([command + [file] for file in files])
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count = multiprocessing.cpu_count()
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pool = multiprocessing.Pool(count)
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try:
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results = pool.map_async(CppLintWorker, commands).get(999999)
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except KeyboardInterrupt:
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print "\nCaught KeyboardInterrupt, terminating workers."
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sys.exit(1)
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for i in range(len(files)):
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if results[i] > 0:
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good_files_cache.RemoveFile(files[i])
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total_errors = sum(results)
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print "Total errors found: %d" % total_errors
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good_files_cache.Save()
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return total_errors == 0
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COPYRIGHT_HEADER_PATTERN = re.compile(
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r'Copyright [\d-]*20[0-1][0-9] the V8 project authors. All rights reserved.')
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class SourceProcessor(SourceFileProcessor):
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"""
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Check that all files include a copyright notice and no trailing whitespaces.
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"""
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RELEVANT_EXTENSIONS = ['.js', '.cc', '.h', '.py', '.c',
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'.status', '.gyp', '.gypi']
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# Overwriting the one in the parent class.
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def FindFilesIn(self, path):
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if os.path.exists(path+'/.git'):
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output = subprocess.Popen('git ls-files --full-name',
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stdout=PIPE, cwd=path, shell=True)
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result = []
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for file in output.stdout.read().split():
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for dir_part in os.path.dirname(file).replace(os.sep, '/').split('/'):
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if self.IgnoreDir(dir_part):
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break
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else:
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if (self.IsRelevant(file) and os.path.exists(file)
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and not self.IgnoreFile(file)):
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result.append(join(path, file))
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if output.wait() == 0:
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return result
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return super(SourceProcessor, self).FindFilesIn(path)
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def IsRelevant(self, name):
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for ext in SourceProcessor.RELEVANT_EXTENSIONS:
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if name.endswith(ext):
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return True
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return False
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def GetPathsToSearch(self):
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return ['.']
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def IgnoreDir(self, name):
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return (super(SourceProcessor, self).IgnoreDir(name) or
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name in ('third_party', 'gyp', 'out', 'obj', 'DerivedSources'))
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IGNORE_COPYRIGHTS = ['box2d.js',
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'cpplint.py',
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'copy.js',
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'corrections.js',
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'crypto.js',
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'daemon.py',
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'earley-boyer.js',
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'fannkuch.js',
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'fasta.js',
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'jsmin.py',
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'libraries.cc',
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'libraries-empty.cc',
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'lua_binarytrees.js',
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'memops.js',
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'poppler.js',
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'primes.js',
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'raytrace.js',
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'regexp-pcre.js',
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'sqlite.js',
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'sqlite-change-heap.js',
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'sqlite-pointer-masking.js',
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'sqlite-safe-heap.js',
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'gnuplot-4.6.3-emscripten.js',
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'zlib.js']
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IGNORE_TABS = IGNORE_COPYRIGHTS + ['unicode-test.js', 'html-comments.js']
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def EndOfDeclaration(self, line):
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return line == "}" or line == "};"
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def StartOfDeclaration(self, line):
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return line.find("//") == 0 or \
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line.find("/*") == 0 or \
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line.find(") {") != -1
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def ProcessContents(self, name, contents):
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result = True
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base = basename(name)
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if not base in SourceProcessor.IGNORE_TABS:
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if '\t' in contents:
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print "%s contains tabs" % name
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result = False
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if not base in SourceProcessor.IGNORE_COPYRIGHTS:
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if not COPYRIGHT_HEADER_PATTERN.search(contents):
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print "%s is missing a correct copyright header." % name
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result = False
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if ' \n' in contents or contents.endswith(' '):
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line = 0
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lines = []
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parts = contents.split(' \n')
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if not contents.endswith(' '):
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parts.pop()
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for part in parts:
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line += part.count('\n') + 1
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lines.append(str(line))
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linenumbers = ', '.join(lines)
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if len(lines) > 1:
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print "%s has trailing whitespaces in lines %s." % (name, linenumbers)
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else:
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print "%s has trailing whitespaces in line %s." % (name, linenumbers)
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result = False
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if not contents.endswith('\n') or contents.endswith('\n\n'):
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print "%s does not end with a single new line." % name
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result = False
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# Check two empty lines between declarations.
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if name.endswith(".cc"):
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line = 0
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lines = []
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parts = contents.split('\n')
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while line < len(parts) - 2:
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if self.EndOfDeclaration(parts[line]):
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if self.StartOfDeclaration(parts[line + 1]):
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lines.append(str(line + 1))
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line += 1
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elif parts[line + 1] == "" and \
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self.StartOfDeclaration(parts[line + 2]):
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lines.append(str(line + 1))
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line += 2
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line += 1
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if len(lines) >= 1:
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linenumbers = ', '.join(lines)
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if len(lines) > 1:
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print "%s does not have two empty lines between declarations " \
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"in lines %s." % (name, linenumbers)
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else:
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print "%s does not have two empty lines between declarations " \
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"in line %s." % (name, linenumbers)
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result = False
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# Sanitize flags for fuzzer.
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if "mjsunit" in name:
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match = FLAGS_LINE.search(contents)
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if match:
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print "%s Flags should use '-' (not '_')" % name
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result = False
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return result
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def ProcessFiles(self, files, path):
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success = True
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violations = 0
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for file in files:
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try:
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handle = open(file)
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contents = handle.read()
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if not self.ProcessContents(file, contents):
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success = False
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violations += 1
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finally:
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handle.close()
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print "Total violating files: %s" % violations
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return success
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def CheckRuntimeVsNativesNameClashes(workspace):
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code = subprocess.call(
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[sys.executable, join(workspace, "tools", "check-name-clashes.py")])
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return code == 0
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def CheckExternalReferenceRegistration(workspace):
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code = subprocess.call(
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[sys.executable, join(workspace, "tools", "external-reference-check.py")])
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return code == 0
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def CheckAuthorizedAuthor(input_api, output_api):
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"""For non-googler/chromites committers, verify the author's email address is
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in AUTHORS.
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"""
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# TODO(maruel): Add it to input_api?
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import fnmatch
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author = input_api.change.author_email
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if not author:
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input_api.logging.info('No author, skipping AUTHOR check')
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return []
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authors_path = input_api.os_path.join(
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input_api.PresubmitLocalPath(), 'AUTHORS')
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valid_authors = (
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input_api.re.match(r'[^#]+\s+\<(.+?)\>\s*$', line)
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for line in open(authors_path))
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valid_authors = [item.group(1).lower() for item in valid_authors if item]
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if not any(fnmatch.fnmatch(author.lower(), valid) for valid in valid_authors):
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input_api.logging.info('Valid authors are %s', ', '.join(valid_authors))
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return [output_api.PresubmitPromptWarning(
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('%s is not in AUTHORS file. If you are a new contributor, please visit'
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'\n'
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'http://www.chromium.org/developers/contributing-code and read the '
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'"Legal" section\n'
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'If you are a chromite, verify the contributor signed the CLA.') %
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author)]
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return []
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def GetOptions():
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result = optparse.OptionParser()
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result.add_option('--no-lint', help="Do not run cpplint", default=False,
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action="store_true")
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return result
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def Main():
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workspace = abspath(join(dirname(sys.argv[0]), '..'))
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parser = GetOptions()
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(options, args) = parser.parse_args()
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success = True
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print "Running C++ lint check..."
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if not options.no_lint:
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success = CppLintProcessor().Run(workspace) and success
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print "Running copyright header, trailing whitespaces and " \
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"two empty lines between declarations check..."
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success = SourceProcessor().Run(workspace) and success
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success = CheckRuntimeVsNativesNameClashes(workspace) and success
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success = CheckExternalReferenceRegistration(workspace) and success
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if success:
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return 0
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else:
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return 1
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if __name__ == '__main__':
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sys.exit(Main())
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