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# 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.filesystem.base import FileSystemBase
from kiwi.command import Command


class FileSystemXfs(FileSystemBase):
    """
    **Implements creation of xfs filesystem**
    """
    def create_on_device(
        self, label: str = None, size: int = 0,
        unit: str = defaults.UNIT.kb, uuid: str = None
    ):
        """
        Create xfs 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()
        call_args = self.custom_args['create_options'].copy()
        if not uuid and label:
            uuid = self._generate_seed_uuid(label)
        if label:
            call_args.append('-L')
            call_args.append(label)
        if uuid:
            call_args.append('-m')
            call_args.append(f'uuid={uuid}')
        if size:
            call_args.append('-d')
            call_args.append(
                'size={0}k'.format(
                    self._fs_size(
                        size=self._map_size(
                            size, from_unit=unit, to_unit=defaults.UNIT.kb
                        ), unit=defaults.UNIT.kb
                    )
                )
            )
        Command.run(
            ['mkfs.xfs', '-f'] + call_args + [device]
        )

    def set_uuid(self):
        """
        Create new random filesystem UUID
        """
        device = self.device_provider.get_device()
        Command.run(
            ['xfs_repair', '-L', device]
        )
        Command.run(
            ['xfs_admin', '-U', 'generate', device]
        )