bdb7123fa1
Use getLogger method instead of a global log object Also use caplog fixture to capture log messages in unit tests. This Fixes #1244
143 lines
4.4 KiB
Python
143 lines
4.4 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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"""
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usage: kiwi image resize -h | --help
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kiwi image resize --target-dir=<directory> --size=<size>
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[--root=<directory>]
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kiwi image resize help
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commands:
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resize
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for disk based images, allow to resize the image to a new
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disk geometry. The additional space is free and not in use
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by the image. In order to make use of the additional free
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space a repartition process is required like it is provided
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by kiwi's oem boot code. Therefore the resize operation is
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useful for oem image builds most of the time
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options:
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--root=<directory>
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the path to the root directory, if not specified kiwi
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searches the root directory in build/image-root below
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the specified target directory
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--size=<size>
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new size of the image. The value is either a size in bytes
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or can be specified with m=MB or g=GB. Example: 20g
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--target-dir=<directory>
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the target directory to expect image build results
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"""
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import os
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import logging
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# project
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from kiwi.firmware import FirmWare
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from kiwi.storage.loop_device import LoopDevice
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from kiwi.partitioner import Partitioner
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from kiwi.tasks.base import CliTask
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from kiwi.help import Help
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from kiwi.storage.subformat import DiskFormat
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from kiwi.utils.size import StringToSize
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from kiwi.exceptions import (
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KiwiImageResizeError
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)
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log = logging.getLogger('kiwi')
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class ImageResizeTask(CliTask):
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"""
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Implements resizing of disk images and their disk format
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Attributes
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* :attr:`manual`
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Instance of Help
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"""
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def process(self):
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"""
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reformats raw disk image and its format to a new disk
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geometry using the qemu tool chain
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"""
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self.manual = Help()
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if self.command_args.get('help') is True:
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return self.manual.show('kiwi::image::resize')
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abs_target_dir_path = os.path.abspath(
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self.command_args['--target-dir']
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)
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if self.command_args['--root']:
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image_root = os.path.abspath(
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os.path.normpath(self.command_args['--root'])
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)
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else:
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image_root = os.sep.join(
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[abs_target_dir_path, 'build', 'image-root']
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)
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self.load_xml_description(
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image_root
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)
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disk_format = self.xml_state.build_type.get_format()
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image_format = DiskFormat(
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disk_format or 'raw', self.xml_state, image_root,
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abs_target_dir_path
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)
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if not image_format.has_raw_disk():
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raise KiwiImageResizeError(
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'no raw disk image {0} found in build results'.format(
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image_format.diskname
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)
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)
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new_disk_size = StringToSize.to_bytes(self.command_args['--size'])
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# resize raw disk
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log.info(
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'Resizing raw disk to {0} bytes'.format(new_disk_size)
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)
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resize_result = image_format.resize_raw_disk(new_disk_size)
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# resize raw disk partition table
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firmware = FirmWare(self.xml_state)
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loop_provider = LoopDevice(image_format.diskname)
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loop_provider.create(overwrite=False)
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partitioner = Partitioner(
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firmware.get_partition_table_type(), loop_provider
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)
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partitioner.resize_table()
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del loop_provider
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# resize disk format from resized raw disk
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if disk_format and resize_result is True:
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log.info(
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'Creating {0} disk format from resized raw disk'.format(
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disk_format
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)
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)
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image_format.create_image_format()
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elif resize_result is False:
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log.info(
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'Raw disk is already at {0} bytes'.format(new_disk_size)
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)
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