--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebKitTools/Scripts/roll-over-ChangeLogs	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,47 @@
+#!/usr/bin/env ruby
+
+# Copyright (C) 2009 Apple 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:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. 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.
+#
+# THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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. 
+
+
+require 'date'
+
+CHANGELOG_SIZE_THRESHOLD = 750 * 1024
+
+scripts_directory = File.dirname(__FILE__)
+base_directory = File.expand_path(ARGV[0] || `perl -I#{scripts_directory} -Mwebkitdirs -e 'print sourceDir();'`)
+
+date_suffix = Date.today.strftime("-%Y-%m-%d")
+
+Dir.chdir base_directory
+`find . -type f -name 'ChangeLog'`.split.each do |path|
+    next unless File.stat(path).size > CHANGELOG_SIZE_THRESHOLD
+
+    old_path = "#{path}#{date_suffix}"
+    puts "Moving #{path} to #{old_path}..."
+    system "git", "mv", path, old_path
+    File.open path, "w" do |file|
+        file.write "== Rolled over to ChangeLog#{date_suffix} ==\n"
+    end
+    system "git", "add", path
+end