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50 lines
1.5 KiB
Python
50 lines
1.5 KiB
Python
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from abstract import AbstractPartition
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import os.path
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from bootstrapvz.common.tools import log_check_call
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class Mount(object):
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"""Represents a mount into the partition
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"""
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def __init__(self, source, destination, opts):
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"""
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:param str,AbstractPartition source: The path from where we mount or a partition
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:param str destination: The path of the mountpoint
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:param list opts: List of options to pass to the mount command
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"""
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self.source = source
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self.destination = destination
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self.opts = opts
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def mount(self, prefix):
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"""Performs the mount operation or forwards it to another partition
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:param str prefix: Path prefix of the mountpoint
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"""
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mount_dir = os.path.join(prefix, self.destination)
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# If the source is another partition, we tell that partition to mount itself
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if isinstance(self.source, AbstractPartition):
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self.source.mount(destination=mount_dir)
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else:
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log_check_call(['mount'] + self.opts + [self.source, mount_dir])
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self.mount_dir = mount_dir
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def unmount(self):
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"""Performs the unmount operation or asks the partition to unmount itself
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"""
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# If its a partition, it can unmount itself
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if isinstance(self.source, AbstractPartition):
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self.source.unmount()
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else:
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log_check_call(['umount', self.mount_dir])
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del self.mount_dir
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def __getstate__(self):
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state = self.__dict__.copy()
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state['__class__'] = self.__module__ + '.' + self.__class__.__name__
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return state
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def __setstate__(self, state):
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for key in state:
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self.__dict__[key] = state[key]
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