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cba0a99d0a
`truncate` doesn't expect the parameter `create` that was used previously by `qemu-img`. This made a sparse file named "create" to appear at current working directory every time the command as executed. This closes #212.
29 lines
823 B
Python
29 lines
823 B
Python
from bootstrapvz.base.fs.volume import Volume
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from ..tools import log_check_call
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class LoopbackVolume(Volume):
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extension = 'raw'
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def create(self, image_path):
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self.fsm.create(image_path=image_path)
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def _before_create(self, e):
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self.image_path = e.image_path
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size_opt = '--size={mib}M'.format(mib=self.size.bytes.get_qty_in('MiB'))
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log_check_call(['truncate', size_opt, self.image_path])
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def _before_attach(self, e):
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[self.loop_device_path] = log_check_call(['losetup', '--show', '--find', self.image_path])
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self.device_path = self.loop_device_path
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def _before_detach(self, e):
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log_check_call(['losetup', '--detach', self.loop_device_path])
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del self.loop_device_path
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self.device_path = None
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def _before_delete(self, e):
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from os import remove
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remove(self.image_path)
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del self.image_path
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