Merging in parts of Master related to disk.py

This commit is contained in:
Anton Hvornum 2021-10-30 20:26:54 +02:00
parent 522ca2e41c
commit 62f5bf4c83
1 changed files with 18 additions and 8 deletions

View File

@ -21,7 +21,7 @@ class BlockDevice:
# I'm placing the encryption password on a BlockDevice level.
def __repr__(self, *args, **kwargs):
return f"BlockDevice({self.device}, size={self.size}GB, free_space={'+'.join(part[2] for part in self.free_space)}, bus_type={self.bus_type})"
return f"BlockDevice({self.device_or_backfile}, size={self.size}GB, free_space={'+'.join(part[2] for part in self.free_space)}, bus_type={self.bus_type})"
def __iter__(self):
for partition in self.partitions:
@ -62,23 +62,33 @@ class BlockDevice:
return device['pttype']
@property
def device(self):
def device_or_backfile(self):
"""
Returns the actual device-endpoint of the BlockDevice.
If it's a loop-back-device it returns the back-file,
If it's a ATA-drive it returns the /dev/X device
And if it's a crypto-device it returns the parent device
For other types it return self.device
"""
if "type" not in self.info:
raise DiskError(f'Could not locate backplane info for "{self.path}"')
if self.info['type'] == 'loop':
for drive in json.loads(SysCommand(['losetup', '--json']).decode('UTF_8'))['loopdevices']:
if not drive['name'] == self.path:
continue
return drive['back-file']
elif self.info['type'] == 'disk':
else:
return self.device
@property
def device(self):
"""
Returns the device file of the BlockDevice.
If it's a loop-back-device it returns the /dev/X device,
If it's a ATA-drive it returns the /dev/X device
And if it's a crypto-device it returns the parent device
"""
if "type" not in self.info:
raise DiskError(f'Could not locate backplane info for "{self.path}"')
if self.info['type'] in ['disk','loop']:
return self.path
elif self.info['type'][:4] == 'raid':
# This should catch /dev/md## raid devices