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import string
from flags import flags
def getDiskPart(dev, storage):
path = storage.devicetree.getDeviceByName(dev).path[5:]
cut = len(dev)
if (path.startswith('rd/') or path.startswith('ida/') or
path.startswith('cciss/') or path.startswith('sx8/') or
path.startswith('mapper/') or path.startswith('mmcblk') or
path.startswith('md')):
if dev[-2] == 'p':
cut = -1
elif dev[-3] == 'p':
cut = -2
else:
if dev[-2] in string.digits:
cut = -2
elif dev[-1] in string.digits:
cut = -1
name = dev[:cut]
# hack off the trailing 'p' from /dev/cciss/*, for example
if name[-1] == 'p':
for letter in name:
if letter not in string.letters and letter != "/":
name = name[:-1]
break
if cut < 0:
partNum = int(dev[cut:]) - 1
else:
partNum = None
return (name, partNum)
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