# File lib/gitlab_git/repository.rb, line 255
      def search_files(query, ref = nil)
        greps = []
        ref ||= root_ref

        populated_index(ref).each do |entry|
          # Discard submodules
          next if submodule?(entry)

          blob = Blob.raw(self, entry[:oid])

          # Skip binary files
          next if blob.data.encoding == Encoding::ASCII_8BIT

          blob.load_all_data!(self)
          greps += build_greps(blob.data, query, ref, entry[:path])
        end

        greps
      end