Add --remap and --show-unchanged options to compare script.

options = {

  :title => "Comparison of Ext 4.0.7 and Ext 4.1.1",

  :remap => {},

}

input_files = OptionParser.new do |opts|

    options[:title] = text

  end

  opts.on("--show-unchanged", "To list classes that have not changed.",

    "By default only classes with changes are listed.") do

    options[:show_unchanged] = true

  end

  opts.on("--map=A:B", "Maps class A in old/classes/ to class B",

    "in new/classes/. For example --map Ext.Foo:Ext.NewFoo") do |pair|

    (a, b) = pair.split(/:/)

    options[:remap][a] = b

  end

  opts.on("-h", "--help", "Show this help message") do

    puts opts

    exit

new_classes = read_all_classes(options[:new_classes])

ignored_members = options[:ignore] ? read_ignored_members(options[:ignore]) : {}

# Explicit remapping of classes

remap = {

  "Array" => "Ext.Array",

  "Date" => "Ext.Date",

  "Function" => "Ext.Function",

  "Number" => "Ext.Number",

  "String" => "Ext.String",

  "Ext.supports" => "Ext.feature.has",

}

diff_data = []

old_classes.each_pair do |name, cls|

  # only go through classes, not alternate names

  if name == cls["name"]

    if remap[name]

      new_cls = new_classes[remap[name]]

    if options[:remap][name]

      new_cls = new_classes[options[:remap][name]]

    else

      new_cls = new_classes[name]

    end

html << "<ul>"

diff_data.sort! {|a, b| a[:name] <=> b[:name] }

diff_data.each do |cls|

  html << "<li>"

  if cls[:found]

    if cls[:diff].length > 0 || options[:show_unchanged]

      html << "<li>"

      new_name = (cls[:new_name] == cls[:name] ? "" : " --> " + cls[:new_name])

      diff_count = cls[:diff].length > 0 ? "(#{cls[:diff].length} changes)" : ""

      link = cls[:diff].length > 0? "<a href='#expand'>#{cls[:name]}</a>" : "<span style='color:green'>"+cls[:name]+'</span>'

        end

        html << "</ul>"

      end

      html << "</li>"

    end

  else

    html << "<li>"

    html << "<h2>" + cls[:name] + " <b>not found</b></h2>"

  end

    html << "</li>"

  end

end

html << "</ul>"

html << "<h2>Summary</h2>"