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173 lines
6.6 KiB
Python
Executable File
173 lines
6.6 KiB
Python
Executable File
#!/usr/bin/python
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#
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# Copyright (C) 2009 Google Inc. All rights reserved.
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#
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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 disclaimer
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# in the documentation and/or other materials provided with the
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# 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 from
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# 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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"""Script to run the linter for source code of WebKit."""
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import os
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import os.path
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import re
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import sys
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import modules.cpplint as cpplint
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from modules.diff_parser import DiffParser
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from modules.scm import detect_scm_system
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# Override the usage of the lint tool.
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cpplint._USAGE = """
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Syntax: %(program_name)s [--verbose=#] [--git-commit=<COMMITISH>] [--output=vs7] [--filter=-x,+y,...]
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The style guidelines this tries to follow are those in
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http://webkit.org/coding/coding-style.html
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Every problem is given a confidence score from 1-5, with 5 meaning we are
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certain of the problem, and 1 meaning it could be a legitimate construct.
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This will miss some errors, and is not a substitute for a code review.
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To prevent specific lines from being linted, add a '// NOLINT' comment to the
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end of the line.
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Linted extensions are .cpp, .c and .h. Other file types will be ignored.
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Flags:
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verbose=#
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Specify a number 0-5 to restrict errors to certain verbosity levels.
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git-commit=<COMMITISH>
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Check style for a specified git commit.
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Note that the program checks style based on current local file
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instead of actual diff of the git commit. So, if the files are
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updated after the specified git commit, the information of line
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number may be wrong.
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output=vs7
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By default, the output is formatted to ease emacs parsing. Visual Studio
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compatible output (vs7) may also be used. Other formats are unsupported.
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filter=-x,+y,...
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Specify a comma-separated list of category-filters to apply: only
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error messages whose category names pass the filters will be printed.
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(Category names are printed with the message and look like
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"[whitespace/indent]".) Filters are evaluated left to right.
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"-FOO" and "FOO" means "do not print categories that start with FOO".
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"+FOO" means "do print categories that start with FOO".
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Examples: --filter=-whitespace,+whitespace/braces
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--filter=whitespace,runtime/printf,+runtime/printf_format
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--filter=-,+build/include_what_you_use
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To see a list of all the categories used in %(program_name)s, pass no arg:
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--filter=
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""" % {'program_name': sys.argv[0]}
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def process_patch(patch_string, root, cwd, scm):
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"""Does lint on a single patch.
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Args:
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patch_string: A string of a patch.
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"""
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patch = DiffParser(patch_string.splitlines())
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if not len(patch.files):
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cpplint.error("patch", 0, "patch/notempty", 3,
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"Patch does not appear to diff against any file.")
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return
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if not patch.status_line:
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cpplint.error("patch", 0, "patch/nosummary", 3,
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"Patch does not have a summary.")
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else:
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proper_format = re.match(r"^Bug [0-9]+ - ", patch.status_line)
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if not proper_format:
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proper_format = re.match(r"^No bug - ", patch.status_line)
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cpplint.error("patch", 0, "patch/bugnumber", 3,
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"Patch summary should begin with 'Bug XXXXX - ' " +
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"or 'No bug -'.")
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if not patch.patch_description:
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cpplint.error("patch", 0, "patch/nodescription", 3,
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"Patch does not have a description.")
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for filename, diff in patch.files.iteritems():
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file_extension = os.path.splitext(filename)[1]
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if file_extension in ['.cpp', '.c', '.h']:
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line_numbers = set()
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orig_filename = filename
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def error_for_patch(filename, line_number, category, confidence,
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message):
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"""Wrapper function of cpplint.error for patches.
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This function outputs errors only if the line number
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corresponds to lines which are modified or added.
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"""
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if not line_numbers:
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for line in diff.lines:
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# When deleted line is not set, it means that
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# the line is newly added.
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if not line[0]:
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line_numbers.add(line[1])
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if line_number in line_numbers:
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cpplint.error(orig_filename, line_number,
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category, confidence, message)
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cpplint.process_file(os.path.join(root, filename),
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relative_name=orig_filename,
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error=error_for_patch)
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def main():
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cpplint.use_mozilla_styles()
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(args, flags) = cpplint.parse_arguments(sys.argv[1:], ["git-commit="])
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if args:
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sys.stderr.write("ERROR: We don't support files as arguments for " +
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"now.\n" + cpplint._USAGE)
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sys.exit(1)
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cwd = os.path.abspath('.')
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scm = detect_scm_system(cwd)
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root = scm.find_checkout_root(cwd)
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if "--git-commit" in flags:
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process_patch(scm.create_patch_from_local_commit(flags["--git-commit"]), root, cwd, scm)
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else:
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process_patch(scm.create_patch(), root, cwd, scm)
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sys.stderr.write('Total errors found: %d\n' % cpplint.error_count())
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sys.exit(cpplint.error_count() > 0)
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if __name__ == "__main__":
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main()
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