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https://github.com/kevingruesser/bootstrap-vz.git
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ff7c04c120
MAJOR refactor. The volume is now abstracted into a model along with a partitionmap and partitions. Volumes and partitions are now controlled via an FSM to ensure that commands are called in the proper sequence. GRUB can now be installed properly onto loop devices by using dmsetup to fake a proper harddisk.
56 lines
1.7 KiB
Python
56 lines
1.7 KiB
Python
from common.tools import log_check_call
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from abc import ABCMeta
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from fysom import Fysom
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class AbstractPartition(object):
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__metaclass__ = ABCMeta
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events = [{'name': 'create', 'src': 'nonexistent', 'dst': 'created'},
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{'name': 'format', 'src': 'created', 'dst': 'formatted'},
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{'name': 'mount', 'src': 'formatted', 'dst': 'mounted'},
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{'name': 'unmount', 'src': 'mounted', 'dst': 'formatted'},
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]
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def __init__(self, size, filesystem, callbacks={}):
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self.size = size
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self.filesystem = filesystem
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self.device_path = None
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self.initial_state = 'nonexistent'
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callbacks.update({'onbeforeformat': self._format,
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'onbeforemount': self._mount,
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'onbeforeunmount': self._unmount,
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})
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self.fsm = Fysom({'initial': 'nonexistent',
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'events': self.events,
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'callbacks': callbacks})
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from common.fsm import attach_proxy_methods
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attach_proxy_methods(self, self.events, self.fsm)
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def state(self):
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return self.fsm.current
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def force_state(self, state):
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self.fsm.current = state
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def get_uuid(self):
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[uuid] = log_check_call(['/sbin/blkid', '-s', 'UUID', '-o', 'value', self.device_path])
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return uuid
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def _format(self, e):
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mkfs = '/sbin/mkfs.{fs}'.format(fs=self.filesystem)
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log_check_call([mkfs, self.device_path])
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def mount(self, destination):
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self.fsm.mount(destination=destination)
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def _mount(self, e):
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log_check_call(['/bin/mount', '--types', self.filesystem, self.device_path, e.destination])
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self.mount_dir = e.destination
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def _unmount(self, e):
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log_check_call(['/bin/umount', self.mount_dir])
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del self.mount_dir
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