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Re: [Qemu-devel] [PATCH v2 1/3] backup: QEMU Backup Tool
From: |
Fam Zheng |
Subject: |
Re: [Qemu-devel] [PATCH v2 1/3] backup: QEMU Backup Tool |
Date: |
Wed, 30 Aug 2017 12:15:39 +0800 |
User-agent: |
Mutt/1.8.3 (2017-05-23) |
On Tue, 08/29 22:13, Ishani Chugh wrote:
> + def _restore(self, guest_name):
> + """
> + Prints Steps to perform restore operation
> + """
> + if guest_name not in self.config.sections():
> + print("Cannot find specified guest", file=sys.stderr)
> + sys.exit(1)
> +
> + self.verify_guest_running(guest_name)
> + connection = QEMUMonitorProtocol(
> + self.get_socket_address(
> + self.config[guest_name]['qmp']))
> + connection.connect()
> + print("To perform restore:")
> + print("Shut down guest")
> + for key in self.config[guest_name]:
> + if key.startswith("drive_"):
> + drive = key[len('drive_'):]
> + target = self.config[guest_name][key]
> + cmd = {'execute': 'query-block'}
> + returned_json = connection.cmd_obj(cmd)
> + device_present = False
> + for device in returned_json['return']:
> + if device['device'] == drive:
> + device_present = True
> + location = device['inserted']['image']['filename']
> + print("Replace " + location + " By " + target)
Maybe just
print("qemu-img convert " + location + " " + target)
which is almost ready to copy&paste into a command line? (You or the user needs
take care of quoting and escaping to handle the special characters, if any.)
> +
> + if not device_present:
> + print("No such drive in guest", file=sys.stderr)
> + sys.exit(1)
> +
Fam