Remove committer list, bugzilla, watchlist code and transitive closure of stuff.

Tools/Scripts/webkitpy/common/watchlist/amountchangedpattern.py

-# Copyright (C) 2011 Google Inc. 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.
-
-
-class AmountChangedPattern:
-    def __init__(self, compile_regex, index_for_zero_value):
-        self._regex = compile_regex
-        self._index_for_zero_value = index_for_zero_value
-
-    def match(self, path, diff_file):
-        examined_strings = set()
-        for diff_line in diff_file:
-            if diff_line[self._index_for_zero_value]:
-                continue
-            match = self._regex.search(diff_line[2])
-            if not match:
-                continue
-            matching_string = match.group(0)
-            if matching_string in examined_strings:
-                continue
-            if self._instance_difference(diff_file, matching_string) > 0:
-                return True
-            # Avoid reprocessing this same string.
-            examined_strings.add(matching_string)
-        return False
-
-    def _instance_difference(self, diff_file, matching_string):
-        '''Returns the difference between the number of string occurences in
-        the added lines and deleted lines (which one is subtracted from the
-        other depends on _index_for_zero_value).'''
-        count = 0
-        for diff_line in diff_file:
-            # If the line is unchanged, then don't examine it.
-            if diff_line[self._index_for_zero_value] and diff_line[1 - self._index_for_zero_value]:
-                continue
-            location_found = -len(matching_string)
-            while True:
-                location_found = diff_line[2].find(matching_string, location_found + len(matching_string))
-                if location_found == -1:
-                    break
-                if not diff_line[self._index_for_zero_value]:
-                    count += 1
-                else:
-                    count -= 1
-        return count