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#
# backend.py: Interface for installation backends
#
# Copyright (C) 2005, 2006, 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/>.
#
# Author(s): Paul Nasrat <pnasrat@redhat.com>
# Jeremy Katz <katzj@redhat.com>
#
import glob
import shutil
import iutil
import os, sys
import logging
from syslogd import syslog
from constants import *
import kickstart
import packages
from rhpl.translate import _
from flags import flags
log = logging.getLogger("anaconda")
class NoSuchGroup(Exception):
def __init__ (self, value):
self.value = value
def __str__ (self):
return self.value
class AnacondaBackend:
def __init__(self, anaconda):
"""Abstract backend class all backends should inherit from this
@param instPath: root path for the installation to occur"""
self.instPath = anaconda.rootPath
self.instLog = None
self.modeText = ""
# some backends may not support upgrading
self.supportsUpgrades = True
self.supportsPackageSelection = False
# some backends may have a special case for rootfs formatting
# FIXME: we should handle this a little more elegantly
self.skipFormatRoot = False
def postAction(self, anaconda):
pass
def doPreSelection(self, intf, id, instPath):
pass
def doPostSelection(self, anaconda):
pass
def doPreInstall(self, anaconda):
self.initLog(anaconda.id, anaconda.rootPath)
def copyFirmware(self, anaconda):
# Multiple driver disks may be loaded, so we need to glob for all
# the firmware files in all the driver disk directories.
for f in glob.glob("/tmp/DD-*/firmware/*"):
try:
shutil.copyfile(f, "%s/lib/firmware/" % anaconda.rootPath)
except IOError, e:
log.error("Could not copy firmware file %s: %s" % (f, e.strerror))
def doPostInstall(self, anaconda):
if anaconda.id.extraModules:
self.copyFirmware(anaconda)
for (n, arch, tag) in self.kernelVersionList(anaconda.rootPath):
packages.recreateInitrd(n, anaconda.rootPath)
for d in glob.glob("/tmp/DD-*"):
shutil.copytree(d, "/root/" + os.path.basename(d))
sys.stdout.flush()
if flags.setupFilesystems:
syslog.stop()
def doInstall(self, anaconda):
log.warning("doInstall not implemented for backend!")
pass
def initLog(self, id, instPath):
upgrade = id.getUpgrade()
if not os.path.isdir(instPath + "/root"):
iutil.mkdirChain(instPath + "/root")
if upgrade:
logname = '/root/upgrade.log'
else:
logname = '/root/install.log'
instLogName = instPath + logname
try:
shutil.rmtree (instLogName)
except OSError:
pass
self.instLog = open(instLogName, "w+")
# dont start syslogd if we arent creating filesystems
if flags.setupFilesystems:
syslogname = "%s%s.syslog" % (instPath, logname)
try:
shutil.rmtree (syslogname)
except OSError:
pass
syslog.start (instPath, syslogname)
else:
syslogname = None
if upgrade:
self.modeText = _("Upgrading %s\n")
else:
self.modeText = _("Installing %s\n")
def kernelVersionList(self, rootPath="/"):
return []
def doInitialSetup(self, anaconda):
pass
def doRepoSetup(self, anaconda):
log.warning("doRepoSetup not implemented for backend!")
pass
def groupExists(self, group):
log.warning("groupExists not implemented for backend!")
pass
def selectGroup(self, group, *args):
log.warning("selectGroup not implemented for backend!")
pass
def deselectGroup(self, group, *args):
log.warning("deselectGroup not implemented for backend!")
pass
def packageExists(self, pkg):
log.warning("packageExists not implemented for backend!")
pass
def selectPackage(self, pkg, *args):
log.warning("selectPackage not implemented for backend!")
pass
def deselectPackage(self, pkg, *args):
log.warning("deselectPackage not implemented for backend!")
pass
def getDefaultGroups(self, anaconda):
log.warning("getDefaultGroups not implemented for backend!")
pass
# write out the %packages section of anaconda-ks.cfg
def writePackagesKS(self, f, anaconda):
log.warning("writePackagesKS not implemented for backend!")
pass
# write out any config files that live on the installed system
# (e.g., /etc/yum.repos.d/* files)
def writeConfiguration(self):
log.warning("writeConfig not implemented for backend!")
pass
# write out any other kickstart bits the backend requires - no warning
# here because this may not be needed
def writeKS(self, f):
pass
def getRequiredMedia(self):
log.warning("getRequiredMedia not implmented for backend!")
pass
def complete(self, anaconda):
pass
def doRepoSetup(anaconda):
if anaconda.backend.doInitialSetup(anaconda) == DISPATCH_BACK:
return DISPATCH_BACK
anaconda.backend.doRepoSetup(anaconda)
if anaconda.id.upgrade:
anaconda.backend.checkSupportedUpgrade(anaconda)
iutil.writeRpmPlatform(anaconda.rootPath)
def doPostSelection(anaconda):
return anaconda.backend.doPostSelection(anaconda)
def doPreInstall(anaconda):
anaconda.backend.doPreInstall(anaconda)
def doPostInstall(anaconda):
anaconda.backend.doPostInstall(anaconda)
def doInstall(anaconda):
return anaconda.backend.doInstall(anaconda)
# does this need to be per-backend? we'll just leave here until it does :)
def doBasePackageSelect(anaconda):
if anaconda.isKickstart:
kickstart.selectPackages(anaconda)
else:
anaconda.id.instClass.setPackageSelection(anaconda)
anaconda.id.instClass.setGroupSelection(anaconda)
def writeConfiguration(anaconda):
log.info("Writing main configuration")
if not flags.test:
anaconda.id.write()
anaconda.backend.writeConfiguration()
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