# 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/>
#
# project
import kiwi.defaults as defaults
from kiwi.command import Command
from kiwi.filesystem.base import FileSystemBase
[docs]
class FileSystemBtrfs(FileSystemBase):
"""
**Implements creation of btrfs filesystem**
"""
[docs]
def create_on_device(
self, label: str = None, size: int = 0, unit: str = defaults.UNIT.kb,
uuid: str = None
):
"""
Create btrfs filesystem on block device
:param str label: label name
:param int size:
size value, can also be counted from the end via -X
The value is interpreted in units of: unit
:param str unit:
unit name. Default unit is set to: defaults.UNIT.kb
:param str uuid: UUID name
"""
device = self.device_provider.get_device()
if label:
self.custom_args['create_options'].append('-L')
self.custom_args['create_options'].append(label)
if uuid:
self.custom_args['create_options'].append('-U')
self.custom_args['create_options'].append(uuid)
if size:
self.custom_args['create_options'].append('--byte-count')
self.custom_args['create_options'].append(
self._fs_size(
size=self._map_size(
size, from_unit=unit, to_unit=defaults.UNIT.byte
), unit=defaults.UNIT.byte
)
)
Command.run(
['mkfs.btrfs'] + self.custom_args['create_options'] + [device]
)
[docs]
def set_uuid(self):
"""
Create new random filesystem UUID
"""
device = self.device_provider.get_device()
Command.run(
['btrfstune', '-f', '-u', device]
)