# Copyright (c) 2015 SUSE Linux GmbH. All rights reserved.
#
# This file is part of kiwi.
#
# kiwi is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# kiwi is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with kiwi. If not, see <http://www.gnu.org/licenses/>
#
import os
# project
from kiwi.storage.device_provider import DeviceProvider
from kiwi.exceptions import (
KiwiMappedDeviceError
)
[docs]
class MappedDevice(DeviceProvider):
"""
**Hold a reference on a single device**
:param object device_provider: Instance of class based on DeviceProvider
:param string device: Device node name
"""
def __init__(self, device: str, device_provider: DeviceProvider):
if not os.path.exists(device):
raise KiwiMappedDeviceError(
'Device %s does not exist' % device
)
self.device_provider = device_provider
self.device = device
[docs]
def get_device(self) -> str:
"""
Mapped device node name
:return: device node name
:rtype: str
"""
return self.device
[docs]
def is_loop(self) -> bool:
"""
Check if storage provider is loop based
Return loop status from base storage provider
:return: True or False
:rtype: bool
"""
return self.device_provider.is_loop()