# File lib/grit/git-ruby/repository.rb, line 173
      def ls_tree(sha, paths = [], recursive = false)
        if paths.size > 0
          # pathing
          part = []
          paths.each do |path|
            part += ls_tree_path(sha, path)
          end
          return part.join("\n")
        else
          get_raw_tree(sha, recursive)
        end
      end