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#
# packages.py: package management - mainly package installation
#
# Erik Troan <ewt@redhat.com>
# Matt Wilson <msw@redhat.com>
# Michael Fulbright <msf@redhat.com>
# Jeremy Katz <katzj@redhat.com>
#
# Copyright 2001-2006 Red Hat, Inc.
#
# This software may be freely redistributed under the terms of the GNU
# library public license.
#
# You should have received a copy of the GNU Library Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#

import iutil
import isys
import os
import timer
import time
import sys
import string
import language
import fsset
import kudzu
import shutil
from flags import flags
from product import *
from constants import *
from installmethod import FileCopyException

import rhpl
from rhpl.translate import _
import rhpl.arch

import logging
log = logging.getLogger("anaconda")

def doPostAction(anaconda):
    anaconda.id.instClass.postAction(anaconda, flags.serial)

def firstbootConfiguration(anaconda):
    if anaconda.id.firstboot == FIRSTBOOT_RECONFIG:
        f = open(anaconda.rootPath + '/etc/reconfigSys', 'w+')
        f.close()
    elif anaconda.id.firstboot == FIRSTBOOT_SKIP:
        f = open(anaconda.rootPath + '/etc/sysconfig/firstboot', 'w+')
        f.write('RUN_FIRSTBOOT=NO')
        f.close()

    return
        

def writeKSConfiguration(anaconda):
    log.info("Writing autokickstart file")
    if not flags.test:
	fn = anaconda.rootPath + "/root/anaconda-ks.cfg"
    else:
	fn = "/tmp/anaconda-ks.cfg"

    anaconda.id.writeKS(fn)

def copyAnacondaLogs(anaconda):
    log.info("Copying anaconda logs")
    for (fn, dest) in (("/tmp/anaconda.log", "anaconda.log"),
                       ("/tmp/syslog", "anaconda.syslog"),
                       ("/tmp/ramfs/X.log", "anaconda.xlog")):
        if os.access(fn, os.R_OK):
            try:
                shutil.copyfile(fn, "%s/var/log/%s" %(anaconda.rootPath, dest))
                os.chmod("%s/var/log/%s" %(anaconda.rootPath, dest), 0600)
            except:
                pass

def writeXConfiguration(anaconda):
    testmode = flags.test

# comment out to test
    if testmode:
        return
# end code to comment to test 
# uncomment to test writing X config in test mode
#    try:
#	os.mkdir("/tmp/etc")
#    except:
#	pass
#    try:
#	os.mkdir("/tmp/etc/X11")
#    except:
#	pass
#    instPath = '/'
# end code for test writing

    if anaconda.id.xsetup.skipx:
        return

    card = anaconda.id.videocard.primaryCard()
    if not card:
	return

    log.info("Writing X configuration")
    if not testmode:
        fn = anaconda.rootPath
    else:
        fn = "/tmp/"

    anaconda.id.xsetup.write(fn+"/etc/X11", anaconda.id.mouse, anaconda.id.keyboard)
    anaconda.id.desktop.write(anaconda.rootPath)

def doMigrateFilesystems(anaconda):
    if anaconda.dir == DISPATCH_BACK:
        return DISPATCH_NOOP

    if anaconda.id.fsset.haveMigratedFilesystems():
        return DISPATCH_NOOP

    anaconda.id.fsset.migrateFilesystems (anaconda.rootPath)

    # if we're upgrading, we may need to do lvm device node hackery
    if anaconda.id.upgrade:
        anaconda.id.fsset.makeLVMNodes(anaconda.rootPath, trylvm1 = 1)
    

def turnOnFilesystems(anaconda):
    if anaconda.dir == DISPATCH_BACK:
        log.info("unmounting filesystems")
	anaconda.id.fsset.umountFilesystems(anaconda.rootPath)
	return

    if flags.setupFilesystems:
	if not anaconda.id.upgrade:
            anaconda.id.partitions.doMetaDeletes(anaconda.id.diskset)
            anaconda.id.fsset.setActive(anaconda.id.diskset)
            if not anaconda.id.fsset.isActive():
                anaconda.id.diskset.savePartitions ()
            anaconda.id.fsset.checkBadblocks(anaconda.rootPath)
            if not anaconda.id.fsset.volumesCreated:
                anaconda.id.fsset.createLogicalVolumes(anaconda.rootPath)
            anaconda.id.fsset.formatSwap(anaconda.rootPath)
            anaconda.id.fsset.turnOnSwap(anaconda.rootPath)
	    anaconda.id.fsset.makeFilesystems (anaconda.rootPath)
            anaconda.id.fsset.mountFilesystems (anaconda)

def setupTimezone(anaconda):
    # we don't need this on an upgrade or going backwards
    if anaconda.id.upgrade or anaconda.dir == DISPATCH_BACK:
        return

    # dont do this in test mode!
    if flags.test or flags.rootpath:
	return
    
    os.environ["TZ"] = anaconda.id.timezone.tz
    tzfile = "/usr/share/zoneinfo/" + anaconda.id.timezone.tz
    if not os.access(tzfile, os.R_OK):
        log.error("unable to set timezone")
    else:
        try:
            shutil.copyfile(tzfile, "/etc/localtime")
        except OSError, (errno, msg):
            log.error("Error copying timezone (from %s): %s" %(tzfile, msg))

    if rhpl.getArch() == "s390":
        return
    args = [ "--hctosys" ]
    if anaconda.id.timezone.utc:
        args.append("-u")
    elif anaconda.id.timezone.arc:
        args.append("-a")

    try:
        iutil.execWithRedirect("/usr/sbin/hwclock", args, stdin = None,
                               stdout = "/dev/tty5", stderr = "/dev/tty5")
    except RuntimeError:
        log.error("Failed to set clock")


# FIXME: this is a huge gross hack.  hard coded list of files
# created by anaconda so that we can not be killed by selinux
def setFileCons(anaconda):
    import partRequests
    
    if flags.selinux:
        log.info("setting SELinux contexts for anaconda created files")

        files = ["/etc/rpm/platform", "/etc/rpm/macros",
                 "/etc/lilo.conf.anaconda", "/lib64", "/usr/lib64",
                 "/etc/blkid.tab", "/etc/blkid.tab.old", 
                 "/etc/mtab", "/etc/fstab", "/etc/resolv.conf",
                 "/etc/modprobe.conf", "/etc/modprobe.conf~",
                 "/var/log/wtmp", "/var/run/utmp",
                 "/dev/log", "/var/lib/rpm", "/", "/etc/raidtab",
                 "/etc/mdadm.conf", "/etc/hosts", "/etc/sysconfig/network",
                 "/root/install.log", "/root/install.log.syslog",
                 "/etc/shadow", "/etc/shadow-", "/etc/gshadow",
                 "/var/log/lastlog", "/var/log/btmp"]

        vgs = []
        for entry in anaconda.id.partitions.requests:
            if isinstance(entry, partRequests.VolumeGroupRequestSpec):
                vgs.append("/dev/%s" %(entry.volumeGroupName,))

        # ugh, this is ugly
        for dir in ["/etc/sysconfig/network-scripts", "/var/lib/rpm", "/etc/lvm", "/dev/mapper", "/etc/iscsi", "/var/lib/iscsi"] + vgs:
            def addpath(x): return dir + "/" + x

            if not os.path.isdir(anaconda.rootPath + dir):
                continue
            dirfiles = os.listdir(anaconda.rootPath + dir)
            files.extend(map(addpath, dirfiles))
            files.append(dir)

        for f in files:
            if not os.access("%s/%s" %(anaconda.rootPath, f), os.R_OK):
                log.warning("%s doesn't exist" %(f,))
                continue
            ret = isys.resetFileContext(os.path.normpath(f),
                                        anaconda.rootPath)
            log.info("set fc of %s to %s" %(f, ret))
            

    return

#Recreate initrd for use when driver disks add modules
def recreateInitrd (kernelTag, instRoot):
    log.info("recreating initrd for %s" % (kernelTag,))
    iutil.execWithRedirect("/sbin/new-kernel-pkg",
                           [ "--mkinitrd", "--depmod", "--install", kernelTag ],
                           stdout = None, stderr = None,
                           searchPath = 1, root = instRoot)

def regKeyScreen(anaconda):
    if anaconda.dir == DISPATCH_BACK:
        return DISPATCH_NOOP

    while 1:
        if anaconda.id.instClass.regkeydesc is None:
            desc = _("Please enter the registration key for your version of %s.") %(productName,)
        else:
            desc = anaconda.id.instClass.regkeydesc
            
        rc = anaconda.intf.entryWindow(_("Enter Registration Key"),
                                       desc, _("Key:"))

        try:
            anaconda.id.instClass.handleRegKey(rc, anaconda.intf)
        except Exception, e:
            log.info("exception handling regkey: %s" %(e,))
            continue
        break

    # FIXME: currently, we only allow this screen to ever be hit _once_
    anaconda.dispatch.skipStep("regkey", permanent = 1)
    return 

def betaNagScreen(anaconda):
    publicBetas = { "Red Hat Linux": "Red Hat Linux Public Beta",
                    "Red Hat Enterprise Linux": "Red Hat Enterprise Linux Public Beta",
                    "Fedora Core": "Fedora Core",
                    "Fedora": "Fedora Core" }

    
    if anaconda.dir == DISPATCH_BACK:
	return DISPATCH_NOOP

    fileagainst = None
    for (key, val) in publicBetas.items():
        if productName.startswith(key):
            fileagainst = val
    if fileagainst is None:
        fileagainst = "%s Beta" %(productName,)
    
    while 1:
	rc = anaconda.intf.messageWindow( _("Warning! This is pre-release software!"),
				 _("Thank you for downloading this "
				   "pre-release of %s.\n\n"
				   "This is not a final "
				   "release and is not intended for use "
				   "on production systems.  The purpose of "
				   "this release is to collect feedback "
				   "from testers, and it is not suitable "
				   "for day to day usage.\n\n"
				   "To report feedback, please visit:\n\n"
				   "   %s\n\n"
				   "and file a report against '%s'.\n")
                                   %(productName, bugzillaUrl, fileagainst),
				   type="custom", custom_icon="warning",
				   custom_buttons=[_("_Exit"), _("_Install anyway")])

	if not rc:
            if flags.rootpath:
                msg =  _("The installer will now exit...")
                buttons = [_("_Back"), _("_Exit")]
            else:
                msg =  _("Your system will now be rebooted...")
                buttons = [_("_Back"), _("_Reboot")]
	    rc = anaconda.intf.messageWindow( _("Rebooting System"),
                                     msg,
                                     type="custom", custom_icon="warning",
                                     custom_buttons=buttons)
	    if rc:
		sys.exit(0)
	else:
	    break

# FIXME: this is a kind of poor way to do this, but it will work for now
def selectPackageConditionals(grpset, grp):
    xmlgrp = grpset.compsxml.groups[grp.basename]

    for package in xmlgrp.pkgConditionals.keys():
        req = xmlgrp.pkgConditionals[package]
        if not grpset.hdrlist.has_key(package):
            log.warning ("Missing %s which is in a conditional" %(package,))
            continue
        # add to the deps in the dependencies structure for the
        # package.  this should take care of whenever we're
        # selected
        grpset.hdrlist[req].addDeps([package], main = 0)
        if grpset.hdrlist[req].isSelected():
            grpset.hdrlist[package].select()
            grpset.hdrlist[package].usecount += grpset.hdrlist[req].usecount - 1
            grp.selectDeps([package], uses = grpset.hdrlist[req].usecount)

# Loop over all the selected groups and make sure all the conditionals are
# met.
def fixupConditionals(grpset):
    for grp in grpset.groups:
        if grpset.groups[grp].isSelected():
            selectPackageConditionals(grpset, grpset.groups[grp])

def selectLanguageSupportGroups(grpset, instLanguage):
    if not grpset.groups.has_key("language-support"):
        return

    langs = []
    for l in language.expandLangs (instLanguage.getDefault()):
        langs.append(l)

    grp = grpset.groups["language-support"]
    for (pid, pdict) in grp.packages.items():
        if pdict['meta'] != 1:
            continue
        if not grpset.groups.has_key(pid):
            continue
        group = grpset.groups[pid]

        if group.langonly is not None and group.langonly in langs:
            grp.selectPackage(pid)
            grp.usecount = grp.usecount + 1
            selectPackageConditionals(grpset, group)

    if grp.usecount > 0:
        grpset.groups["language-support"].select()