cdrom.py 文件源码

def generate_iso(self, cleanup=True):
        self.cdrom_iso_tmp = NamedTemporaryFile(delete=False, dir=self.tmp_dir.name)
        cdrom_iso = self.cdrom_iso_tmp.name
        # chmod to be r/w by everyone
        # so we can remove the file even when qemu takes the ownership

        tools = {
            "genisoimage": self.__genisoimage,
            "mkisofs": self.__mkisofs
        }

        available = next(bin for bin in tools.keys() 
                         if shutil.which(bin) is not None)

        # generate iso
        if available is None:
            raise Exception('Cannot find tools for creating ISO images')

        tools[available](cdrom_iso)

        logging.debug('ISO generated at %s', cdrom_iso)
        # cleanup
        if cleanup:
            self.cdrom_dir_tmp.cleanup()
        return cdrom_iso