boost::filesystem::path path = directory;
path /= container_name_format.get(i.front()->name_values(), ".zip", "s");
if (!boost::filesystem::exists (path) || confirm_overwrite (path)) {
boost::filesystem::path path = directory;
path /= container_name_format.get(i.front()->name_values(), ".zip", "s");
if (!boost::filesystem::exists (path) || confirm_overwrite (path)) {