# File lib/chef/knife/index_rebuild.rb, line 37
      def nag
        unless config[:yes]
          yea_or_nay = ask_question("This operation is destructive. Rebuilding the index may take some time. You sure? (yes/no): ")
          unless yea_or_nay =~ /^y/i
            puts "aborting"
            exit 7
          end
        end
      end