95 lines
3.2 KiB
Python
95 lines
3.2 KiB
Python
# Copyright (c) 2015 SUSE Linux GmbH. All rights reserved.
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#
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# This file is part of kiwi.
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#
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# kiwi is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# kiwi is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with kiwi. If not, see <http://www.gnu.org/licenses/>
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#
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# project
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from ..system.size import SystemSize
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from ..logger import log
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from ..defaults import Defaults
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class FileSystemSetup(object):
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"""
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Implement filesystem setup methods providing information
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from the root directory required before building a
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filesystem image
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Attributes
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* :attr:`configured_size`
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Configured size section from the build type section
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* :attr:`size`
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Instance of Size
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* :attr:`requested_image_type`
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Configured image type name
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* :attr:`requested_filesystem`
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Configured filesystem name
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"""
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def __init__(self, xml_state, root_dir):
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self.configured_size = xml_state.get_build_type_size()
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self.size = SystemSize(root_dir)
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self.requested_image_type = xml_state.get_build_type_name()
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if self.requested_image_type in Defaults.get_filesystem_image_types():
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self.requested_filesystem = self.requested_image_type
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else:
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self.requested_filesystem = xml_state.build_type.get_filesystem()
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def get_size_mbytes(self):
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"""
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Precalculate the requires size in mbytes to store all data
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from the root directory in the requested filesystem. Return
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the configured value if present, if not return the calculated
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result
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:return: mbytes
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:rtype: int
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"""
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root_dir_mbytes = self.size.accumulate_mbyte_file_sizes()
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filesystem_mbytes = self.size.customize(
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root_dir_mbytes, self.requested_filesystem
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)
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if not self.configured_size:
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log.info(
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'Using calculated size: %d MB',
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filesystem_mbytes
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)
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return filesystem_mbytes
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elif self.configured_size.additive:
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result_filesystem_mbytes = \
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self.configured_size.mbytes + filesystem_mbytes
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log.info(
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'Using configured size: %d MB + %d MB calculated = %d MB',
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self.configured_size.mbytes,
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filesystem_mbytes,
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result_filesystem_mbytes
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)
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return result_filesystem_mbytes
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else:
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log.info(
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'Using configured size: %d MB',
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self.configured_size.mbytes
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)
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if self.configured_size.mbytes < filesystem_mbytes:
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log.warning(
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'--> Configured size smaller than calculated size: %d MB',
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filesystem_mbytes
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)
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return self.configured_size.mbytes
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