# File lib/gitlab_git/repository.rb, line 918
      def ls_files(ref)
        actual_ref = ref || root_ref

        begin
          sha_from_ref(actual_ref)
        rescue Rugged::OdbError, Rugged::InvalidError, Rugged::ReferenceError
          # Return an empty array if the ref wasn't found
          return []
        end

        cmd = ??(git --git-dir=#{path} ls-tree)
        cmd += %w(-r)
        cmd += %w(--full-tree)
        cmd += %w(--full-name)
        cmd += ??(-- #{actual_ref})

        raw_output = IO.popen(cmd, &:read).split("\n").map do |f|
          stuff, path = f.split("\t")
          mode, type, sha = stuff.split(" ")
          path if type == "blob"
          # Contain only blob type
        end

        raw_output.compact
      end