qubes-installer-qubes-os/anaconda/sortedtransaction.py
2011-03-31 13:40:54 +02:00

88 lines
3.0 KiB
Python

#
# sortedtransaction.py
#
# Copyright (C) 2007 Red Hat, Inc. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
from yum.transactioninfo import TransactionData, TransactionMember, SortableTransactionData
from yum.constants import *
from yum.Errors import YumBaseError
import urlparse
urlparse.uses_fragment.append('media')
import logging
log = logging.getLogger("anaconda")
class SplitMediaTransactionData(SortableTransactionData):
def __init__(self):
SortableTransactionData.__init__(self)
self.reqmedia = {}
self.curmedia = 0
def __getMedia(self, po):
try:
uri = po.returnSimple('basepath')
(scheme, netloc, path, query, fragid) = urlparse.urlsplit(uri)
if scheme != "media" or not fragid:
return -99
else:
return int(fragid)
except (KeyError, AttributeError):
return -99
def getMembers(self, pkgtup=None):
if not self.curmedia:
return TransactionData.getMembers(self, pkgtup)
if pkgtup is None:
returnlist = []
for ele in self.reqmedia[self.curmedia]:
returnlist.extend(self.pkgdict[ele])
return returnlist
if pkgtup in self.reqmedia[self.curmedia]:
return self.pkgdict[pkgtup]
else:
return []
def add(self, txmember):
if txmember.output_state in TS_INSTALL_STATES:
id = self.__getMedia(txmember.po)
if id:
if id not in self.reqmedia.keys():
self.reqmedia[id] = [ txmember.pkgtup ]
elif txmember.pkgtup not in self.reqmedia[id]:
self.reqmedia[id].append(txmember.pkgtup)
SortableTransactionData.add(self, txmember)
def remove(self, pkgtup):
if not self.pkgdict.has_key(pkgtup):
return
txmembers = self.pkgdict[pkgtup]
if len(txmembers) > 0:
for txmbr in txmembers:
if txmbr.output_state not in TS_INSTALL_STATES:
continue
id = self.__getMedia(txmbr.po)
if id:
self.reqmedia[id].remove(pkgtup)
if len(self.reqmedia[id]) == 0:
self.reqmedia.pop(id)
del txmbr
SortableTransactionData.remove(self, pkgtup)