starting a script to update changelog for a RC branching

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@16782 71c3de6d-444a-0410-be80-ed276b4c234a

rc.changelog.rb

+#!/bin/ruby
+# The MIT License
+# 
+# Copyright (c) 2004-2009, Sun Microsystems, Inc., Kohsuke Kawaguchi
+# 
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+# 
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+# 
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+
+# Updates changelog.html
+#   Usage: update.changelog.rb <nextVer> < changelog.html > output.html
+
+# version number manipulation class
+class VersionNumber
+  def initialize(str)
+    @tokens = str.split(/\./)
+  end
+  def inc
+    @tokens[-1] = (@tokens[-1].to_i()+1).to_s()
+  end
+  def dec
+    @tokens[-1] = (@tokens[-1].to_i()-1).to_s()
+  end
+  def to_s
+    @tokens.join(".")
+  end
+end
+
+id=VersionNumber.new(ARGV.shift)
+id.inc()
+
+
+ARGF.each do |line|
+  if /=BEGIN=/ =~ line
+    puts line
+    puts "<a name=v#{id}><h3>What's new in #{id}</h3></a>"
+    puts "<ul class=image>"
+    puts "  <li class=>"
+    puts "</ul>"
+    puts "</div><!--=END=-->"
+
+    next
+  end
+  if /=END=/ =~ line
+    next
+  end
+  puts line
+end
\ No newline at end of file