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84 lines
3.6 KiB
Python
84 lines
3.6 KiB
Python
# Copyright (C) 2010 Google Inc. All rights reserved.
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# Copyright (C) 2010 Chris Jerdonek (chris.jerdonek@gmail.com)
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# Copyright (C) 2010 ProFUSION embedded systems
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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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import logging
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import re
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from webkitpy.common.checkout.diff_parser import DiffParser
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from webkitpy.common.system.executive import Executive
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from webkitpy.common.system.filesystem import FileSystem
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from webkitpy.common.checkout.scm.detection import SCMDetector
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_log = logging.getLogger(__name__)
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class PatchReader(object):
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"""Supports checking style in patches."""
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def __init__(self, text_file_reader):
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"""Create a PatchReader instance.
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Args:
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text_file_reader: A TextFileReader instance.
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"""
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self._text_file_reader = text_file_reader
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def check(self, patch_string, fs=None):
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"""Check style in the given patch."""
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fs = fs or FileSystem()
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patch_files = DiffParser(patch_string.splitlines()).files
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# If the user uses git, checking subversion config file only once is enough.
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call_only_once = True
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for path, diff_file in patch_files.iteritems():
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line_numbers = diff_file.added_or_modified_line_numbers()
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_log.debug('Found %s new or modified lines in: %s' % (len(line_numbers), path))
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if not line_numbers:
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match = re.search("\s*png$", path)
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if match and fs.exists(path):
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if call_only_once:
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self._text_file_reader.process_file(file_path=path, line_numbers=None)
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cwd = FileSystem().getcwd()
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detection = SCMDetector(fs, Executive()).detect_scm_system(cwd)
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if detection.display_name() == "git":
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call_only_once = False
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continue
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# Don't check files which contain only deleted lines
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# as they can never add style errors. However, mark them as
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# processed so that we count up number of such files.
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self._text_file_reader.count_delete_only_file()
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continue
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self._text_file_reader.process_file(file_path=path, line_numbers=line_numbers)
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