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Return better error messages from file pool

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A `qubes.storage.StoragePoolException` will be returned as a useful
error from `qvm-backup`.
This commit is contained in:
Demi Marie Obenour 2020-11-26 11:17:33 -05:00
parent 7275939000
commit 09785449ed
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GPG Key ID: 28A45C93B0B5B6E0
1 changed files with 3 additions and 3 deletions
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6
qubes/storage/file.py
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@ -271,9 +271,9 @@ class FileVolume(qubes.storage.Volume):
if self._export_lock is not None:
assert self._export_lock is FileVolume._marker_running, \
'nested calls to export()'
self._not_implemented('exporting a starting volume')
raise qubes.storage.StoragePoolException('file pool cannot export running volumes')
if self.is_dirty():
self._not_implemented('exporting a dirty volume')
raise qubes.storage.StoragePoolException('file pool cannot export dirty volumes')
self._export_lock = FileVolume._marker_exported
return self.path
@ -327,7 +327,7 @@ class FileVolume(qubes.storage.Volume):
if self._export_lock is not None:
assert self._export_lock is FileVolume._marker_exported, \
'nested calls to start()'
self._not_implemented('starting a VM with an exported volume')
raise qubes.storage.StoragePoolException('file pool cannot start a VM with an exported volume')
self._export_lock = FileVolume._marker_running
if not self.save_on_stop and not self.snap_on_start:
self.reset()