diskimage-builder/diskimage_builder/block_device/level1/partition.py

70 lines
2.1 KiB
Python
Raw Normal View History

# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import logging
from diskimage_builder.block_device.exception import \
BlockDeviceSetupException
from diskimage_builder.block_device.plugin import NodeBase
logger = logging.getLogger(__name__)
class PartitionNode(NodeBase):
flag_boot = 1
flag_primary = 2
def __init__(self, config, parent, prev_partition):
super(PartitionNode, self).__init__(config['name'])
self.base = config['base']
self.partitioning = parent
self.prev_partition = prev_partition
self.flags = set()
if 'flags' in config:
for f in config['flags']:
if f == 'boot':
self.flags.add(self.flag_boot)
elif f == 'primary':
self.flags.add(self.flag_primary)
else:
raise BlockDeviceSetupException("Unknown flag: %s" % f)
if 'size' not in config:
raise BlockDeviceSetupException("No size in partition" % self.name)
self.size = config['size']
self.ptype = int(config['type'], 16) if 'type' in config else 0x83
def get_flags(self):
return self.flags
def get_size(self):
return self.size
def get_type(self):
return self.ptype
def get_edges(self):
edge_from = [self.base]
edge_to = []
if self.prev_partition is not None:
edge_from.append(self.prev_partition.name)
return (edge_from, edge_to)
def create(self, result, rollback):
self.partitioning.create(result, rollback)