def _to_bytes(self, size_value):
size_format = '^(\d+)([gGmM]{0,1})$'
size = re.search(size_format, size_value)
if not size:
raise KiwiImageResizeError(
'unsupported size format {0}, must match {1}'.format(
size_value, size_format))
size_base = int(size.group(1))
size_unit = {'g': 3, 'm': 2}.get(size.group(2).lower())
return size_unit and size_base * math.pow(0x400,
size_unit) or size_base
def process(self):
"""
reformats raw disk image and its format to a new disk
geometry using the qemu tool chain
"""
self.manual = Help()
if self.command_args.get('help') is True:
return self.manual.show('kiwi::image::resize')
abs_target_dir_path = os.path.abspath(
self.command_args['--target-dir'])
if self.command_args['--root']:
image_root = os.path.abspath(
os.path.normpath(self.command_args['--root']))
else:
image_root = os.sep.join(
[abs_target_dir_path, 'build', 'image-root'])
self.load_xml_description(image_root)
disk_format = self.xml_state.build_type.get_format()
image_format = DiskFormat(disk_format or 'raw', self.xml_state,
image_root, abs_target_dir_path)
if not image_format.has_raw_disk():
raise KiwiImageResizeError(
'no raw disk image {0} found in build results'.format(
image_format.diskname))
new_disk_size = StringToSize.to_bytes(self.command_args['--size'])
# resize raw disk
log.info('Resizing raw disk to {0} bytes'.format(new_disk_size))
resize_result = image_format.resize_raw_disk(new_disk_size)
# resize raw disk partition table
firmware = FirmWare(self.xml_state)
loop_provider = LoopDevice(image_format.diskname)
loop_provider.create(overwrite=False)
partitioner = Partitioner(firmware.get_partition_table_type(),
loop_provider)
partitioner.resize_table()
del loop_provider
# resize disk format from resized raw disk
if disk_format and resize_result is True:
log.info('Creating {0} disk format from resized raw disk'.format(
disk_format))
image_format.create_image_format()
elif resize_result is False:
log.info('Raw disk is already at {0} bytes'.format(new_disk_size))