Merge rails i18n YAML files

merger.rb

# LOAD RAILS ENV ...

def returning(value)
  yield(value)
  value
end

def convert_hash_to_ordered_hash_and_sort(object, deep = false)
# from http://seb.box.re/2010/1/15/deep-hash-ordering-with-ruby-1-8/
  if object.is_a?(Hash)
    # Hash is ordered in Ruby 1.9! 
    res = returning(RUBY_VERSION >= '1.9' ? Hash.new : ActiveSupport::OrderedHash.new) do |map|
      object.each {|k, v| map[k.to_s] = deep ? convert_hash_to_ordered_hash_and_sort(v, deep) : v }
    end
    return res.class[res.sort {|a, b| a[0].to_s <=> b[0].to_s } ]
  elsif deep && object.is_a?(Array)
    array = Array.new
    object.each_with_index {|v, i| array[i] = convert_hash_to_ordered_hash_and_sort(v, deep) }
    return array
  else
    return object
  end
end

translations = convert_hash_to_ordered_hash_and_sort(I18n.backend.send(:translations),true)
f = File.open(Rails.root.join('en.yml'),'w+')
f.write translations[:en].to_yaml
f.close