def search(cls, pathspec=None):
"""Search for logical volumes matching ``pathspec``
This will search for any logical volumes matching ``pathspec`` and
return an iterable that provides instances of LogicalVolume
:returns: iterable of LogicalVolume instances
"""
for volume in lvs(pathspec):
yield cls(volume)
def search(cls, pathspec=None):
"""Search for logical volumes matching ``pathspec``
This will search for any logical volumes matching ``pathspec`` and
return an iterable that provides instances of LogicalVolume
:returns: iterable of LogicalVolume instances
"""
for volume in lvs(pathspec):
yield cls(volume)
def test_lvs(self):
"""Test lv"""
log_vol, = lvs("%s/%s" % (TEST_VG, TEST_LV))
self.assertEqual(log_vol["vg_name"], TEST_VG)
vg_extents = int(log_vol["vg_extent_count"])
self.assertEqual(int(vg_extents), 31)
vg_extent_size = int(log_vol["vg_extent_size"])
self.assertEqual(int(vg_extent_size), 4194304)
self.assertEqual(int(log_vol["lv_size"]), IMG_SIZE / 2)
def lookup(cls, pathspec):
"""Lookup a logical volume for ``pathspec``
This will always return the first volume group found and raise an error
if multiple volumes match ``pathspec``
:returns: LogicalVolume instance
"""
try:
volume, = lvs(pathspec)
return cls(volume)
except (LVMCommandError, ValueError):
#XX: Perhaps we should be more specific :)
raise LookupError("No LogicalVolume could be found "
"for pathspec %r" %
pathspec)
def reload(self):
"""Reload the data for this LogicalVolume"""
self.attributes, = lvs(self.device_name())
def reload(self):
"""Reload the data for this LogicalVolume"""
self.attributes, = lvs(self.device_name())
