# File lib/chef/knife/search.rb, line 77
      def run
        if config[:query] && @name_args[1]
          ui.error "please specify query as an argument or an option via -q, not both"
          ui.msg opt_parser
          exit 1
        end
        raw_query = config[:query] || @name_args[1]
        if !raw_query || raw_query.empty?
          ui.error "no query specified"
          ui.msg opt_parser
          exit 1
        end

        if name_args[0].nil?
          ui.error "you must specify an item type to search for"
          exit 1
        end

        if name_args[0] == 'node'
          ui.use_presenter Knife::Core::NodePresenter
        end


        q = Chef::Search::Query.new
        query = URI.escape(raw_query,
                           Regexp.new("[^#{URI::PATTERN::UNRESERVED}]"))

        result_items = []
        result_count = 0

        rows = config[:rows]
        start = config[:start]
        begin
          q.search(@name_args[0], query, config[:sort], start, rows) do |item|
            formatted_item = format_for_display(item)
            if formatted_item.respond_to?(:has_key?) && !formatted_item.has_key?('id')
              formatted_item['id'] = item.has_key?('id') ? item['id'] : item.name
            end
            result_items << formatted_item
            result_count += 1
          end
        rescue Net::HTTPServerException => e
          msg = Chef::JSONCompat.from_json(e.response.body)["error"].first
          ui.error("knife search failed: #{msg}")
          exit 1
        end

        if ui.interchange?
          output({:results => result_count, :rows => result_items})
        else
          ui.msg "#{result_count} items found"
          ui.msg("\n")
          result_items.each do |item|
            output(item)
            ui.msg("\n")
          end
        end
      end