You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
309 lines
9.2 KiB
309 lines
9.2 KiB
#!/usr/bin/python
|
|
#
|
|
# Module for manipulation of lilo.conf files. Original found
|
|
# in the anaconda installer
|
|
# Copyright (c) 1999-2001 Red Hat, Inc. Distributed under GPL.
|
|
#
|
|
# Author: Matt Wilson <msw@redhat.com>
|
|
# Eric Troan <ewt@redhat.com>
|
|
# Adrian Likins <alikins@redhat.com>
|
|
"""Module for manipulation of lilo.conf files."""
|
|
import string
|
|
import os
|
|
|
|
from UserDict import UserDict
|
|
|
|
|
|
class UserDictCase(UserDict):
|
|
"""A dictionary with case insensitive keys"""
|
|
def __init__(self, data = {}):
|
|
UserDict.__init__(self)
|
|
# if we are passed a dictionary transfer it over...
|
|
for k in data.keys():
|
|
kl = string.lower(k)
|
|
self.data[kl] = data[k]
|
|
# some methods used to make the class work as a dictionary
|
|
def __setitem__(self, key, value):
|
|
key = string.lower(key)
|
|
self.data[key] = value
|
|
def __getitem__(self, key):
|
|
key = string.lower(key)
|
|
if not self.data.has_key(key):
|
|
return None
|
|
return self.data[key]
|
|
get = __getitem__
|
|
def __delitem__(self, key):
|
|
key = string.lower(key)
|
|
del self.data[key]
|
|
def has_key(self, key):
|
|
key = string.lower(key)
|
|
return self.data.has_key(key)
|
|
# return this data as a real hash
|
|
def get_hash(self):
|
|
return self.data
|
|
# return the data for marshalling
|
|
def __getstate__(self):
|
|
return self.data
|
|
# we need a setstate because of the __getstate__ presence screws up deepcopy
|
|
def __setstate__(self, state):
|
|
self.__init__(state)
|
|
# get a dictionary out of this instance ({}.update doesn't get instances)
|
|
def dict(self):
|
|
return self.data
|
|
|
|
class LiloConfigFile:
|
|
"""class representing a lilo.conf lilo configuration file. Used to
|
|
manipulate the file directly"""
|
|
|
|
def __repr__ (self, tab = 0):
|
|
s = ""
|
|
for n in self.order:
|
|
if (tab):
|
|
s = s + '\t'
|
|
if n[0] == '#':
|
|
s = s + n[1:]
|
|
else:
|
|
s = s + n
|
|
if self.items[n]:
|
|
s = s + "=" + self.items[n]
|
|
s = s + '\n'
|
|
for count in range(len(self.diskRemaps)):
|
|
s = s + "disk = %s\n" % self.diskRemaps[count][1]
|
|
s = s + "\tbios = %s\n" % self.biosRemaps[count][1]
|
|
for cl in self.images:
|
|
s = s + "\n%s=%s\n" % (cl.imageType, cl.path)
|
|
s = s + cl.__repr__(1)
|
|
return s
|
|
|
|
def addEntry(self, item, val = None, replace = 1):
|
|
if not self.items.has_key(item):
|
|
self.order.append(item)
|
|
elif not replace:
|
|
return
|
|
|
|
if (val):
|
|
self.items[item] = str(val)
|
|
else:
|
|
self.items[item] = None
|
|
|
|
def getEntry(self, item):
|
|
if self.items.has_key(item):
|
|
return self.items[item]
|
|
else:
|
|
return None
|
|
|
|
def delEntry(self, item):
|
|
newOrder = []
|
|
for i in self.order:
|
|
if item != i: newOrder.append(i)
|
|
self.order = newOrder
|
|
|
|
del self.items[item]
|
|
|
|
def listEntries(self):
|
|
foo = self.items
|
|
return foo
|
|
|
|
def testEntry(self, item):
|
|
if self.items.has_key(item):
|
|
return 1
|
|
else:
|
|
return 0
|
|
|
|
def getImage(self, label):
|
|
for config in self.images:
|
|
# sanity check
|
|
if label is None:
|
|
break
|
|
if config.getEntry('label'):
|
|
if string.lower(config.getEntry('label')) == string.lower(label):
|
|
return (config.imageType, config, config.path, config.other)
|
|
if config.getEntry('alias'):
|
|
if string.lower(config.getEntry('alias')) == string.lower(label):
|
|
return (config.imageType, config, config.path, config.other)
|
|
|
|
|
|
raise IndexError, "unknown image %s" % (label)
|
|
|
|
def addImage (self, config,first=None):
|
|
# make sure the config has a valid label
|
|
config.getEntry('label')
|
|
if not config.path or not config.imageType:
|
|
raise ValueError, "subconfig missing path or image type"
|
|
|
|
if first:
|
|
self.images = [config] + self.images
|
|
else:
|
|
self.images.append(config)
|
|
|
|
def delImage (self, label):
|
|
for config in self.images:
|
|
# sanity check
|
|
if label is None:
|
|
break
|
|
if config.getEntry('label'):
|
|
if string.lower(config.getEntry('label')) == string.lower(label):
|
|
self.images.remove (config)
|
|
return
|
|
|
|
raise IndexError, "unknown image %s" % (label,)
|
|
|
|
def getDefault (self):
|
|
default = None
|
|
try:
|
|
default = self.getEntry("default")
|
|
except:
|
|
pass
|
|
|
|
if not default:
|
|
default = self.listImages()[0]
|
|
|
|
theDefault = self.getImage(default)
|
|
|
|
return theDefault[1]
|
|
|
|
def getDefaultLinux (self):
|
|
defaultIsOther = None
|
|
|
|
# XXX ick... this code badly needs work =\
|
|
theDefault = self.getDefault()
|
|
|
|
if theDefault.other:
|
|
defaultIsOther = 1
|
|
|
|
# if the default is other, look for the first linux image
|
|
if theDefault.other:
|
|
for image_label in self.listImages():
|
|
image = self.getImage(image_label)[1]
|
|
if not image.other:
|
|
theDefault = image
|
|
break
|
|
|
|
# if we get here and are *still* an other, then we have no linux
|
|
# images. ick
|
|
if theDefault.other:
|
|
return None
|
|
else:
|
|
return theDefault
|
|
|
|
def listImages (self):
|
|
l = []
|
|
for config in self.images:
|
|
l.append(config.getEntry('label'))
|
|
return l
|
|
|
|
def listAliases (self):
|
|
l = []
|
|
for config in self.images:
|
|
if config.getEntry('alias'):
|
|
l.append(config.getEntry('alias'))
|
|
return l
|
|
|
|
def getPath (self):
|
|
return self.path
|
|
|
|
def write(self, file, perms = 0644):
|
|
f = open(file, "w")
|
|
f.write(self.__repr__())
|
|
f.close()
|
|
os.chmod(file, perms)
|
|
|
|
def read (self, file):
|
|
f = open(file, "r")
|
|
image = None
|
|
for l in f.readlines():
|
|
l = l[:-1]
|
|
orig = l
|
|
while (l and (l[0] == ' ' or l[0] == '\t')):
|
|
l = l[1:]
|
|
if not l:
|
|
continue
|
|
if l[0] == '#' and not image:
|
|
self.order.append('#' + orig)
|
|
continue
|
|
fields = string.split(l, '=', 1)
|
|
if l[0] == '#' and image:
|
|
args = ('#' + l,)
|
|
elif (len(fields) == 2):
|
|
f0 = string.strip (fields [0])
|
|
f1 = string.strip (fields [1])
|
|
if (f0 != "append"):
|
|
# people are silly and put quotes brokenly in their
|
|
# lilo.conf but you have to use them for append. ARGH!
|
|
f1 = string.replace(f1, '"', '')
|
|
f1 = string.replace(f1, "'", "")
|
|
if (f0 == "image" or f0 == "other"):
|
|
if image: self.addImage(image)
|
|
image = LiloConfigFile(imageType = f0,
|
|
path = f1)
|
|
if (f0 == "other"):
|
|
image.other = 1
|
|
args = None
|
|
else:
|
|
args = (f0, f1)
|
|
if (f0 == "disk"):
|
|
self.diskRemaps.append((f0,f1))
|
|
args = None
|
|
if (f0 == "bios"):
|
|
self.biosRemaps.append((f0,f1))
|
|
args = None
|
|
|
|
else:
|
|
args = (string.strip (l),)
|
|
|
|
if (args and image):
|
|
apply(image.addEntry, args)
|
|
elif args:
|
|
apply(self.addEntry, args)
|
|
|
|
if image: self.addImage(image)
|
|
|
|
f.close()
|
|
|
|
def __init__(self, imageType = None, path = None):
|
|
self.imageType = imageType
|
|
self.path = path
|
|
self.order = []
|
|
self.images = []
|
|
self.other = None
|
|
self.items = UserDictCase()
|
|
self.biosRemaps = []
|
|
self.diskRemaps = []
|
|
self.unsupported = []
|
|
|
|
|
|
if __name__ == "__main__":
|
|
import sys
|
|
#sys.path.append("")
|
|
config = LiloConfigFile ()
|
|
config.read ('/etc/lilo.conf')
|
|
print config
|
|
print "image list", config.listImages()
|
|
config.delImage ('linux')
|
|
print '----------------------------------'
|
|
config = LiloConfigFile ()
|
|
config.read ('/etc/lilo.conf')
|
|
print config
|
|
print '----------------------------------'
|
|
print '----------------------------------'
|
|
print "list images"
|
|
print config.listImages()
|
|
print config.getImage('linux')
|
|
print "----------------------------------"
|
|
print "addimage (testlinux)"
|
|
blip = """
|
|
read-only
|
|
blippy-blob=sdfsdf
|
|
append=\"sdfasdfasdf\"
|
|
root=/dev/hda6
|
|
"""
|
|
sl = LiloConfigFile(imageType = "image", path="/boot/somevmlinuz-2.4.0")
|
|
sl.addEntry("label", "newkernel")
|
|
sl.addEntry("initrd", "blipppy")
|
|
config.addImage(sl)
|
|
|
|
print '-------------------------------------'
|
|
print "writing out /tmp/lilo.conf"
|
|
print config.write("/tmp/lilo.conf")
|
|
print config
|