Source code for kiwi.filesystem.squashfs

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


[docs]class FileSystemSquashFs(FileSystemBase): """ **Implements creation of squashfs filesystem** """
[docs] def create_on_file(self, filename, label=None, exclude=None): """ Create squashfs filesystem from data tree There is no label which could be set for squashfs thus this parameter is not used :param string filename: result file path name :param string label: unused :param list exclude: list of exclude dirs/files """ exclude_options = [] compression = self.custom_args.get('compression') if compression is None or compression == 'xz': if '-comp' not in self.custom_args['create_options']: self.custom_args['create_options'].append('-comp') self.custom_args['create_options'].append('xz') if '-Xbcj' not in self.custom_args['create_options']: host_architecture = Defaults.get_platform_name() if Defaults.is_x86_arch(host_architecture): self.custom_args['create_options'].append('-Xbcj') self.custom_args['create_options'].append('x86') if 'ppc' in host_architecture: self.custom_args['create_options'].append('-Xbcj') self.custom_args['create_options'].append('powerpc') elif compression != 'uncompressed': if '-comp' not in self.custom_args['create_options']: self.custom_args['create_options'].append('-comp') self.custom_args['create_options'].append(compression) else: for flag in ['-noI', '-noD', '-noF', '-noX']: if flag not in self.custom_args['create_options']: self.custom_args['create_options'].append(flag) if exclude: exclude_options.extend(['-wildcards', '-e']) for item in exclude: exclude_options.append(item) Command.run( [ 'mksquashfs', self.root_dir, filename, '-noappend', '-b', '1M' ] + self.custom_args['create_options'] + exclude_options )