show in rails logger all i18n keys for current page

i18n_debug.rb

if Rails.env.development?
  module I18n
    class << self
      alias :translate_orig :translate

      def translate(*options)
        Rails.logger.debug options.inspect
        translate_orig *options
      end

      alias :localize_orig :localize
      def localize(*options)
        Rails.logger.debug options.inspect
        localize_orig *options
      end
    end
  end
end