node_control_tool.py 文件源码

def _restore_from_backup(self, version):
        logger.debug('Restoring from backup for {}'.format(version))
        for file_path in self.files_to_preserve:
            try:
                shutil.copy2(os.path.join(self.backup_target, file_path),
                             os.path.join(self.tmp_dir, file_path))
            except IOError as e:
                logger.warning('Copying {} failed due to {}'
                               .format(file_path, e))
        shutil.unpack_archive(self._backup_name_ext(
            version), self.backup_target, self.backup_format)
        for file_path in self.files_to_preserve:
            try:
                shutil.copy2(os.path.join(self.tmp_dir, file_path),
                             os.path.join(self.backup_target, file_path))
            except IOError as e:
                logger.warning('Copying {} failed due to {}'
                               .format(file_path, e))
        shutil.rmtree(self.tmp_dir, ignore_errors=True)