def __create_navigator(self, main_root):
		navigator_dir = os.path.join(main_root, 'navigator')
		safe_mkdir(navigator_dir)

		navigators = self.__config_mgr.navigator()
		self.__navigator_mgr.create_navigators(navigators, navigator_dir)
def _swdb_group_upgrade(self, group_id, pkg_types, pkgs):
        if not self._base.history.group.get(group_id):
            self._raise_or_warn( self._ignore_installed, _("Group id '%s' is not installed.") % group_id)
            return

        swdb_group = self._create_swdb_group(group_id, pkg_types, pkgs)

        if swdb_group is not None:
            self._base.history.group.upgrade(swdb_group)