Merge all yaml locale files into one by locale

yaml_i18n_merge.rb

# to run in a Rails console !

def returning(value)
  yield(value)
  value
end

class Hash
  def deep_reject_key!(key)
    keys.each {|k| delete(k) if k == key || self[k] == self[key] }

    values.each {|v| v.deep_reject_key!(key) if v.is_a? Hash }
    self
  end
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); puts ''

translations.deep_reject_key!('faker'); puts '' # remove faker keys !

f = File.open(Rails.root.join('config/locales/en.yml'),'w+')
f.write({ 'en' => translations['en'] }.to_yaml); puts ''
f.close
f = File.open(Rails.root.join('config/locales/fr.yml'),'w+')
f.write({ 'fr' => translations['fr'] }.to_yaml); puts ''
f.close