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from os import system, listdir, statvfs, popen
from Tools.Directories import SCOPE_HDD, resolveFilename
def tryOpen(filename):
try:
procFile = open(filename)
except IOError:
return ""
return procFile
def num2prochdx(num):
return "/proc/ide/hd" + ("a","b","c","d","e","f","g","h","i")[num] + "/"
class Harddisk:
def __init__(self, index):
self.index = index
host = self.index / 4
bus = (self.index & 2)
target = (self.index & 1)
self.prochdx = num2prochdx(index)
self.devidex = "/dev/ide/host%d/bus%d/target%d/lun0/" % (host, bus, target)
def getIndex(self):
return self.index
def bus(self):
ret = ""
if self.index & 2:
ret = "External (CF) - "
else:
ret = "Internal - "
if self.index & 1:
return ret + "Slave"
else:
return ret + "Master"
def capacity(self):
procfile = tryOpen(self.prochdx + "capacity")
if procfile == "":
return ""
line = procfile.readline()
procfile.close()
try:
cap = int(line)
except:
return ""
cap = cap / 1000 * 512 / 1000
return "%d.%03d GB" % (cap/1024, cap%1024)
def model(self):
procfile = tryOpen(self.prochdx + "model")
if procfile == "":
return ""
line = procfile.readline()
procfile.close()
return line.strip()
def free(self):
procfile = tryOpen("/proc/mounts")
if procfile == "":
return -1
free = -1
while 1:
line = procfile.readline()
if line == "":
break
if line.startswith(self.devidex):
parts = line.strip().split(" ")
try:
stat = statvfs(parts[1])
except OSError:
continue
free = stat.f_bfree/1000 * stat.f_bsize/1000
break
procfile.close()
return free
def numPartitions(self):
try:
idedir = listdir(self.devidex)
except OSError:
return -1
numPart = -1
for filename in idedir:
if filename.startswith("disc"):
numPart += 1
if filename.startswith("part"):
numPart += 1
return numPart
def unmount(self):
cmd = "/bin/umount " + self.devidex + "part*"
res = system(cmd)
return (res >> 8)
def createPartition(self):
cmd = "/sbin/sfdisk -f " + self.devidex + "disc"
sfdisk = popen(cmd, "w")
sfdisk.write("0,\n;\n;\n;\ny\n")
sfdisk.close()
return 0
def mkfs(self):
cmd = "/sbin/mkfs.ext3 -T largefile -m0 " + self.devidex + "part1"
res = system(cmd)
return (res >> 8)
def mount(self):
cmd = "/bin/mount -t ext3 " + self.devidex + "part1 /hdd"
res = system(cmd)
return (res >> 8)
def createMovieFolder(self):
res = system("mkdir " + resolveFilename(SCOPE_HDD))
return (res >> 8)
errorList = [ _("Everything is fine"), _("Creating partition failed"), _("Mkfs failed"), _("Mount failed"), _("Create movie folder failed"), _("Unmount failed")]
def initialize(self):
self.unmount()
if self.createPartition() != 0:
return -1
if self.mkfs() != 0:
return -2
if self.mount() != 0:
return -3
if self.createMovieFolder() != 0:
return -4
return 0
def existHDD(num):
mediafile = tryOpen(num2prochdx(num) + "media")
if mediafile == "":
return -1
line = mediafile.readline()
mediafile.close()
if line.startswith("disk"):
return 1
return -1
class Partition:
def __init__(self, mountpoint, description = ""):
self.mountpoint = mountpoint
self.description = description
def stat(self):
return statvfs(self.mountpoint)
def free(self):
try:
s = self.stat()
return s.f_bavail * s.f_bsize
except OSError:
return None
def total(self):
try:
s = self.stat()
return s.f_blocks * s.f_bsize
except OSError:
return None
def mounted(self):
# THANK YOU PYTHON FOR STRIPPING AWAY f_fsid.
# TODO: can os.path.ismount be used?
procfile = tryOpen("/proc/mounts")
for n in procfile.readlines():
if n.split(' ')[1] == self.mountpoint:
return True
return False
class HarddiskManager:
def __init__(self):
hddNum = 0
self.hdd = [ ]
self.partitions = [ ]
for hddNum in range(8):
if existHDD(hddNum):
hdd = Harddisk(hddNum)
self.hdd.append(hdd)
# currently, this is just an enumeration of what's possible,
# this probably has to be changed to support automount stuff.
# still, if stuff is mounted into the correct mountpoints by
# external tools, everything is fine (until somebody inserts
# a second usb stick.)
p = [
("/media/hdd", _("Harddisk")),
("/media/card", _("Card")),
("/media/cf", _("Compact Flash")),
("/media/mmc1", _("MMC Card")),
("/media/net", _("Network Mount")),
("/media/ram", _("Ram Disk")),
("/media/usb", _("USB Stick")),
("/", _("Internal Flash"))
]
for x in p:
self.partitions.append(Partition(mountpoint = x[0], description = x[1]))
def HDDCount(self):
return len(self.hdd)
def HDDList(self):
list = [ ]
for hd in self.hdd:
hdd = hd.model() + " ("
hdd += hd.bus()
cap = hd.capacity()
if cap != "":
hdd += ", " + cap
hdd += ")"
list.append((hdd, hd))
return list
def getMountedPartitions(self):
return [x for x in self.partitions if x.mounted()]
harddiskmanager = HarddiskManager()
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