krb5.git - MIT Kerberos patches

diff options

author	Tom Yu <tlyu@mit.edu>	1994-05-25 22:31:55 +0000
committer	Tom Yu <tlyu@mit.edu>	1994-05-25 22:31:55 +0000
commit	ad64c5a554bec9d9acc1a6d25c114da38bf671e1 (patch)
tree	e3c346f623a3b1d9a391147ec4a4decd3e5d0712 /src/admin/create
parent	1793ce6c395a35f4f64511f431d7d466fe2bb3d3 (diff)

HesiodIncludes, HESINCLUDES to do the right thing

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@3643 dc483132-0cff-0310-8789-dd5450dbe970

Diffstat (limited to 'src/admin/create')

0 files changed, 0 insertions, 0 deletions

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#
# yuminstall.py
#
# 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/>.
#

from flags import flags

import sys
import os
import os.path
import shutil
import time
import warnings
import types
import locale
import glob

import rpm
import rpmUtils
import urlgrabber.progress
import urlgrabber.grabber
from urlgrabber.grabber import URLGrabber, URLGrabError
import yum
import iniparse
import rhpl
from yum.constants import *
from yum.Errors import RepoError, YumBaseError, PackageSackError
from yum.yumRepo import YumRepository
from backend import AnacondaBackend
from product import productName, productStamp
from sortedtransaction import SplitMediaTransactionData
from constants import *
from image import *
from rhpl.translate import _

# specspo stuff
rpm.addMacro("_i18ndomains", "redhat-dist")

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

import urlparse
urlparse.uses_fragment.append('media')


import iutil
import isys

import whiteout

def size_string (size):
    def number_format(s):
        return locale.format("%s", s, 1)

    if size > 1024 * 1024:
        size = size / (1024*1024)
        return _("%s MB") %(number_format(size),)
    elif size > 1024:
        size = size / 1024
        return _("%s KB") %(number_format(size),)        
    else:
        if size == 1:
            return _("%s Byte") %(number_format(size),)                    
        else:
            return _("%s Bytes") %(number_format(size),)

class AnacondaCallback:

    def __init__(self, ayum, anaconda, instLog, modeText):
        self.repos = ayum.repos
        self.ts = ayum.ts
        self.ayum = ayum
        
        self.messageWindow = anaconda.intf.messageWindow
        self.waitWindow = anaconda.intf.waitWindow        
        self.progress = anaconda.id.instProgress
        self.progressWindowClass = anaconda.intf.progressWindow
        self.rootPath = anaconda.rootPath

        self.initWindow = None

        self.progressWindow = None
        self.lastprogress = 0
        self.incr = 20

        self.instLog = instLog
        self.modeText = modeText

        self.openfile = None
        self.inProgressPo = None

    def setSizes(self, numpkgs, totalSize, totalFiles):
        self.numpkgs = numpkgs
        self.totalSize = totalSize
        self.totalFiles = totalFiles

        self.donepkgs = 0
        self.doneSize = 0
        self.doneFiles = 0
        

    def callback(self, what, amount, total, h, user):
        # first time here means we should pop the window telling
        # user to wait until we get here
        if self.initWindow is not None:
            self.initWindow.pop()
            self.initWindow = None

        if what == rpm.RPMCALLBACK_TRANS_START:
            # step 6 is the bulk of the ts processing time
            if amount == 6:
                self.progressWindow = \
                    self.progressWindowClass (_("Processing"), 
                                              _("Preparing transaction from installation source..."),
                                              total)
                try:
                    self.incr = total / 10
                except:
                    pass

        if what == rpm.RPMCALLBACK_TRANS_PROGRESS:
            if self.progressWindow and amount > self.lastprogress + self.incr:
                self.progressWindow.set(amount)
                self.lastprogress = amount

        if what == rpm.RPMCALLBACK_TRANS_STOP and self.progressWindow:
            self.progressWindow.pop()

        if what == rpm.RPMCALLBACK_INST_OPEN_FILE:
            (hdr, rpmloc) = h
            # hate hate hate at epochs...
            epoch = hdr['epoch']
            if epoch is not None:
                epoch = str(epoch)
            txmbrs = self.ayum.tsInfo.matchNaevr(hdr['name'], hdr['arch'],
                                                 epoch, hdr['version'],
                                                 hdr['release'])
            if len(txmbrs) == 0:
                raise RuntimeError, "Unable to find package %s-%s-%s.%s" %(hdr['name'], hdr['version'], hdr['release'], hdr['arch'])
            po = txmbrs[0].po

            repo = self.repos.getRepo(po.repoid)

            pkgStr = "%s-%s-%s.%s" % (po.name, po.version, po.release, po.arch)
            s = _("<b>Installing %s</b> (%s)\n") %(pkgStr, size_string(hdr['size']))
            sum = hdr['summary'] or ""
            if type(sum) != unicode:
                sum = unicode(sum, encoding='utf-8')
            s += sum
            self.progress.set_label(s)

            self.instLog.write(self.modeText % pkgStr)

            self.instLog.flush()
            self.openfile = None

            while self.openfile is None:
                try:
                    fn = repo.getPackage(po)

                    f = open(fn, 'r')
                    self.openfile = f
                except yum.Errors.NoMoreMirrorsRepoError:
                    self.ayum._handleFailure(po)
                except yum.Errors.RepoError, e:
                    continue
            self.inProgressPo = po

            return self.openfile.fileno()

        elif what == rpm.RPMCALLBACK_INST_CLOSE_FILE:
            (hdr, rpmloc) = h

            fn = self.openfile.name
            self.openfile.close()
            self.openfile = None

            repo = self.repos.getRepo(self.inProgressPo.repoid)
            if os.path.dirname(fn).startswith("%s/tmp/cache/" % self.rootPath):
                try:
                    os.unlink(fn)
                except OSError, e:
                    log.debug("unable to remove file %s" %(e,))

            self.donepkgs += 1
            self.doneSize += self.inProgressPo.returnSimple("installedsize") / 1024.0
            self.doneFiles += len(hdr[rpm.RPMTAG_BASENAMES])

            self.progress.set_label("")
            self.progress.set_text(_("%s of %s packages completed")
                                   %(self.donepkgs, self.numpkgs))
            self.progress.set_fraction(float(self.doneSize / self.totalSize))
            self.progress.processEvents()

            self.inProgressPo = None

        # FIXME: we should probably integrate this into the progress bar
        # and actually show progress on cleanups.....
        elif what in (rpm.RPMCALLBACK_UNINST_START,
                      rpm.RPMCALLBACK_UNINST_STOP):
            if self.initWindow is None:
                self.initWindow = self.waitWindow(_("Finishing upgrade"),
                                                  _("Finishing upgrade process.  This may take a little while..."))
            else:
                self.initWindow.refresh()

        else:
            pass

        self.progress.processEvents()

class AnacondaYumRepo(YumRepository):
    def __init__( self, uri=None, mirrorlist=None,
                  repoid='anaconda%s' % productStamp,
                  root = "/mnt/sysimage/", addon=True):
        YumRepository.__init__(self, repoid)
        conf = yum.config.RepoConf()
        for k, v in conf.iteritems():
            if v or not self.getAttribute(k):
                self.setAttribute(k, v)
        self.gpgcheck = False
        #self.gpgkey = "%s/RPM-GPG-KEY-fedora" % (method, )
        self.keepalive = False
        self.addon = addon

        if type(uri) == types.ListType:
            self.baseurl = uri
        else:
            self.baseurl = [ uri ]

        if mirrorlist:
            self.mirrorlist = mirrorlist

        self.setAttribute('cachedir', os.path.join(root, "/tmp/cache", self.id))

    def dirSetup(self):
        # FIXME: this is terrible, awful and shouldn't be allowed to see
        # the light of day.  but if we use YumRepository.dirSetup(), then
        # our value of cachedir is overridden.  So just make sure we do
        # the bits that are done in that parent class for now :-/
        self.setAttribute('pkgdir', os.path.join(self.cachedir, "packages"))
        self.setAttribute('hdrdir', os.path.join(self.cachedir, "headers"))
        self.setAttribute('metadata_cookie', os.path.join(self.cachedir, self.metadata_cookie_fn))

        if not os.path.isdir(self.hdrdir):
            os.makedirs(self.hdrdir, mode=0755)
        if not os.path.isdir(self.pkgdir):
            os.makedirs(self.pkgdir, mode=0755)
        if not os.path.isdir(self.cachedir):
            os.makedirs(self.cachedir, mode=0755)

    def _getFile(self, url=None, relative=None, local=None, start=None, end=None,
            copy_local=None, checkfunc=None, text=None, reget='simple', cache=True):
        # FIXME: we end up doing a regrab in the preupgrade case here for some
        # reason I can't figure out
        if os.path.exists(local):
            return local
        return YumRepository._getFile(self, url, relative, local, start, end, copy_local, checkfunc, text, reget, cache)


class YumSorter(yum.YumBase):
    def _transactionDataFactory(self):
        return SplitMediaTransactionData()

class AnacondaYum(YumSorter):
    def __init__(self, anaconda):
        YumSorter.__init__(self)
        self.anaconda = anaconda
        self.currentMedia = None
        self._loopbackFile = None
        self._timestamp = None

        # Only needed for hard drive and nfsiso installs.
        self._discImages = {}

        # Where is the source media mounted?  isodir only matters if we are
        # doing NFS or HD image installs, and points to the directory where
        # the ISO images themselves may be found.  tree always points to the
        # directory where Packages/ is located.
        self.tree = "/mnt/source"

        if self.anaconda.methodstr.startswith("hd:") or self.anaconda.methodstr.startswith("nfsiso:"):
            self.isodir = "/mnt/isodir"
        else:
            self.isodir = None

        # The loader may have mounted the first disc for us, but there's
        # no guarantee what with the stage2= stuff.
        if self.anaconda.mediaDevice or self.isodir:
            if os.path.ismount(self.tree):
                self.currentMedia = 1
            else:
                self._switchImage(1)

            self.mediagrabber = self.mediaHandler
        else:
            self.mediagrabber = None

        self.doConfigSetup(root=anaconda.rootPath)
        self.conf.installonlypkgs = []
        self.macros = {}

        if flags.selinux:
            for directory in ("/tmp/updates", "/mnt/source/RHupdates",
                        "/etc/selinux/targeted/contexts/files",
                        "/etc/security/selinux/src/policy/file_contexts",
                        "/etc/security/selinux"):
                fn = "%s/file_contexts" %(directory,)
                if os.access(fn, os.R_OK):
                    break
            self.macros["__file_context_path"] = fn
        else:
            self.macros["__file_context_path"]  = "%{nil}"

        self.macros["_dependency_whiteout"] = whiteout.whiteout

        self.updates = []
        self.localPackages = []

    def systemMounted(self, fsset, chroot):
        stage2img = None

        if os.path.exists("/tmp/stage2.img"):
            log.info("Using /tmp/stage2.img as stage2 image")
            stage2img = "/tmp/stage2.img"
        elif os.path.exists("%s/images/stage2.img" % self.tree):
            log.info("Using %s/images/stage2.img as stage2 image" % self.tree)
            stage2img = "%s/images/stage2.img" % self.tree
        else:
            log.debug("Not copying stage2.img as we can't find it")
            return

        self._loopbackFile = "%s%s/rhinstall-stage2.img" % (chroot,
                             fsset.filesystemSpace(chroot)[0][0])

        try:
            win = self.anaconda.intf.waitWindow(_("Copying File"),
                    _("Transferring install image to hard drive..."))
            shutil.copyfile(stage2img, self._loopbackFile)
            win.pop()
        except Exception, e:
            if win:
                win.pop()

            log.critical("error transferring stage2.img: %s" %(e,))

            if isinstance(e, IOError) and e.errno == 5:
                msg = _("An error occurred transferring the install image "
                        "to your hard drive.  This is probably due to "
                        "bad media.")
            else:
                msg = _("An error occurred transferring the install image "
                        "to your hard drive. You are probably out of disk "
                        "space.")

            self.anaconda.intf.messageWindow(_("Error"), msg)
            try:
                os.unlink(self._loopbackFile)
            except:
                pass

            return 1

        isys.lochangefd("/dev/loop0", self._loopbackFile)

        # Try to remove the stage2 image from /tmp to decrease memory usage.
        if stage2img == "/tmp/stage2.img":
            try:
                os.unlink(stage2img)
            except:
                pass

    def _switchCD(self, discnum):
        if os.access("%s/.discinfo" % self.tree, os.R_OK):
            f = open("%s/.discinfo" % self.tree)
            self._timestamp = f.readline().strip()
            f.close()

        # If self.currentMedia is None, then we shouldn't have anything
        # mounted.  double-check by trying to unmount, but we don't want
        # to get into a loop of trying to unmount forever.  If
        # self.currentMedia is set, then it should still be mounted and
        # we want to loop until it unmounts successfully
        if self.currentMedia is None:
            try:
                isys.umount(self.tree)
            except:
                pass
        else:
            unmountCD(self.tree, self.anaconda.intf.messageWindow)
            self.currentMedia = None

        isys.ejectCdrom(self.anaconda.mediaDevice)

        while True:
            if self.anaconda.intf:
                self.anaconda.intf.beep()

            self.anaconda.intf.messageWindow(_("Change Disc"),
                _("Please insert %s disc %d to continue.") % (productName,
                                                              discnum))

            try:
                if isys.mount(self.anaconda.mediaDevice, self.tree,
                              fstype = "iso9660", readOnly = 1):
                    time.sleep(3)
                    isys.mount(self.anaconda.mediaDevice, self.tree,
                               fstype = "iso9660", readOnly = 1)

                if verifyMedia(self.tree, discnum, self._timestamp):
                    self.currentMedia = discnum
                    break

                self.anaconda.intf.messageWindow(_("Wrong Disc"),
                        _("That's not the correct %s disc.")
                          % (productName,))
                isys.umount(self.tree)
                isys.ejectCdrom(self.anaconda.mediaDevice)
            except:
                self.anaconda.intf.messageWindow(_("Error"),
                        _("Unable to access the disc."))

    def _switchImage(self, discnum):
        umountImage(self.tree, self.currentMedia)
        self.currentMedia = None

        # mountDirectory checks before doing anything, so it's safe to
        # call this repeatedly.
        mountDirectory(self.isodir, self.anaconda.methodstr,
                       self.anaconda.intf.messageWindow)

        self._discImages = mountImage(self.isodir, self.tree, discnum,
                                      self.anaconda.intf.messageWindow,
                                      discImages=self._discImages)
        self.currentMedia = discnum

    def mediaHandler(self, *args, **kwargs):
        mediaid = kwargs["mediaid"]
        discnum = kwargs["discnum"]
        relative = kwargs["relative"]

        # The package exists on media other than what's mounted right now.
        if discnum != self.currentMedia:
            log.info("switching from media #%s to #%s for %s" %
                     (self.currentMedia, discnum, relative))

            # Unmount any currently mounted ISO images and mount the one
            # containing the requested packages.
            if self.isodir:
                self._switchImage(discnum)
            else:
                self._switchCD(discnum)

        ug = URLGrabber(checkfunc=kwargs["checkfunc"])
        ug.urlgrab("%s/%s" % (self.tree, kwargs["relative"]), kwargs["local"],
                   text=kwargs["text"], range=kwargs["range"], copy_local=1)
        return kwargs["local"]

    def doConfigSetup(self, fn='/etc/yum.conf', root='/'):
        self.conf = yum.config.YumConf()
        self.conf.installroot = root
        self.conf.reposdir=["/tmp/repos.d"]
        self.conf.logfile="/tmp/yum.log"
        self.conf.obsoletes=True
        self.conf.cache=0
        self.conf.cachedir = "%s/tmp/cache/" % self.anaconda.rootPath
        self.conf.metadata_expire = 0

        if self.anaconda.methodstr.startswith("nfs:"):
            methodstr = "file://%s" % self.tree
            if not os.path.ismount(self.tree):
                isys.mount(self.anaconda.methodstr[4:], self.tree, "nfs")
        elif self.anaconda.methodstr.startswith("nfsiso:"):
            methodstr = "file://%s" % self.tree
        elif self.anaconda.methodstr.startswith("cdrom:"):
            methodstr = "file://%s" % self.tree
        elif self.anaconda.methodstr.startswith("hd:"):
            methodstr = "file://%s" % self.tree
        elif self.anaconda.methodstr.startswith("ftp:") or self.anaconda.methodstr.startswith("http:"):
            methodstr = self.anaconda.methodstr

        # set up logging to log to our logs
        ylog = logging.getLogger("yum")
        map(lambda x: ylog.addHandler(x), log.handlers)

        _preupgset = False
        # add default repos
        for (name, uri) in self.anaconda.id.instClass.getPackagePaths(methodstr).items():
            rid = name.replace(" ", "")
            repo = AnacondaYumRepo(uri, addon=False,
                                   repoid="anaconda-%s-%s" %(rid, productStamp),
                                   root = root)
            repo.name = name
            repo.cost = 100

            # if we've been booted with 'preupgrade', then we want to
            # use the cache on the hd for the upgrade info and thus avoid
            # needing to use the network.
            # FIXME: longer-term, I'd like to see
            # the anaconda-upgrade dir just become a full-fledged repo
            # (maybe combining input from multiple repos) that we add
            # in addition to the base repos.  then we catch a depcheck error
            # and ask if you want to add more repos.
            if flags.cmdline.has_key("preupgrade") and _preupgset == False:
                _preupgset = True
                if os.path.exists("%s/var/cache/yum/anaconda-upgrade" % self.anaconda.rootPath):
                    repo.cachedir = "%s/var/cache/yum/anaconda-upgrade" % self.anaconda.rootPath
                    repo.metadata_expire = -1
                    log.info("setting cachedir for %s to %s based on preupgrade flag" %(rid, repo.cachedir))

            if self.anaconda.mediaDevice or self.isodir:
                repo.mediaid = getMediaId(self.tree)
                log.info("set mediaid of repo to: %s" % repo.mediaid)

            repo.enable()
            self.repos.add(repo)

        extraRepos = []

        # add some additional not enabled by default repos.
        # FIXME: this is a hack and should probably be integrated
        # with the above
        for (name, (uri, mirror)) in self.anaconda.id.instClass.repos.items():
            rid = name.replace(" ", "")
            repo = AnacondaYumRepo(uri=uri, mirrorlist=mirror, repoid=rid,
                                   root=root)
            repo.name = name
            repo.disable()
            extraRepos.append(repo)

        if self.anaconda.id.extraModules:
            for d in glob.glob("/tmp/DD-*/rpms"):
                dirname = os.path.basename(os.path.dirname(d))
                rid = "anaconda-%s" % dirname

                repo = AnacondaYumRepo(uri="file:///%s" % d, repoid=rid,
                                       root=root, addon=False)
                repo.name = "Driver Disk %s" % dirname.split("-")[1]
                repo.enable()
                extraRepos.append(repo)

        if self.anaconda.isKickstart:
            for ksrepo in self.anaconda.id.ksdata.repo.repoList:
                repo = AnacondaYumRepo(uri=ksrepo.baseurl,
                                       mirrorlist=ksrepo.mirrorlist,
                                       repoid=ksrepo.name)
                repo.name = ksrepo.name
                repo.enable()
                extraRepos.append(repo)

        for repo in extraRepos:
            try:
                self.repos.add(repo)
                log.info("added repository %s with URL %s" % (repo.name, repo.mirrorlist or repo.baseurl))
            except yum.Errors.DuplicateRepoError, e:
                log.warning("ignoring duplicate repository %s with URL %s" % (repo.name, repo.mirrorlist or repo.baseurl))

        self.doPluginSetup(searchpath=["/usr/lib/yum-plugins",
                                       "/tmp/updates/yum-plugins",
                                       "/mnt/source/RHupdates/yum-plugins"], 
                           confpath=["/etc/yum/pluginconf.d",
                                     "/tmp/updates/pluginconf.d",
                                     "/mnt/source/RHupdates/pluginconf.d"])
        self.plugins.run('init')

        self.repos.setCacheDir("%s/tmp/cache" % self.anaconda.rootPath)

    def downloadHeader(self, po):
        while True:
            # retrying version of download header
            try:
                YumSorter.downloadHeader(self, po)
                break
            except yum.Errors.NoMoreMirrorsRepoError:
                self._handleFailure(po)
            except IOError:
                self._handleFailure(po)
            except yum.Errors.RepoError, e:
                continue

    def _handleFailure(self, package):
        if not self.isodir and self.currentMedia:
            buttons = [_("Re_boot"), _("_Eject")]
        else:
            buttons = [_("Re_boot"), _("_Retry")]

        pkgFile = os.path.basename(package.returnSimple('relativepath'))
        rc = self.anaconda.intf.messageWindow(_("Error"),
                   _("The file %s cannot be opened.  This is due to a missing "
                     "file, a corrupt package or corrupt media.  Please "
                     "verify your installation source.\n\n"
                     "If you exit, your system will be left in an inconsistent "
                     "state that will likely require reinstallation.\n\n") %
                                              (pkgFile,),
                                    type="custom", custom_icon="error",
                                    custom_buttons=buttons)

        if rc == 0:
            sys.exit(0)
        else:
            if not self.isodir and self.currentMedia:
                self._switchCD(self.currentMedia)
            else:
                return

    def mirrorFailureCB (self, obj, *args, **kwargs):
        # This gets called when a mirror fails, but it cannot know whether
        # or not there are other mirrors left to try, since it cannot know
        # which mirror we were on when we started this particular download. 
        # Whenever we have run out of mirrors the grabber's get/open/retrieve
        # method will raise a URLGrabError exception with errno 256.
        grab = self.repos.getRepo(kwargs["repo"]).grab
        log.warning("Failed to get %s from mirror %d/%d, "
                    "or downloaded file is corrupt" % (obj.url, grab._next + 1,
                                                       len(grab.mirrors)))

        if self.currentMedia:
            unmountCD(self.tree, self.anaconda.intf.messageWindow)
            self.currentMedia = None

    def urlgrabberFailureCB (self, obj, *args, **kwargs):
        log.warning("Try %s/%s for %s failed" % (obj.tries, obj.retry, obj.url))

        if obj.tries == obj.retry:
            return

        delay = 0.25*(2**(obj.tries-1))
        if delay > 1:
            w = self.anaconda.intf.waitWindow(_("Retrying"), _("Retrying package download..."))
            time.sleep(delay)
            w.pop()
        else:
            time.sleep(delay)

    def getDownloadPkgs(self):
        downloadpkgs = []
        totalSize = 0
        totalFiles = 0
        for txmbr in self.tsInfo.getMembers():
            if txmbr.ts_state in ['i', 'u']:
                po = txmbr.po
            else:
                continue

            if po:
                totalSize += int(po.returnSimple("installedsize")) / 1024
                for filetype in po.returnFileTypes():
                    totalFiles += len(po.returnFileEntries(ftype=filetype))
                downloadpkgs.append(po)

        return (downloadpkgs, totalSize, totalFiles)

    def setColor(self):
        if (rpmUtils.arch.canonArch.startswith("ppc64") or
        rpmUtils.arch.canonArch in ("s390x", "sparc64", "x86_64", "ia64")):
            self.ts.ts.setColor(3)

    def run(self, instLog, cb, intf, id):
        def mediasort(a, b):
            # sort so that first CD comes first, etc.  -99 is a magic number
            # to tell us that the cd should be last
            if a == -99:
                return 1
            elif b == -99:
                return -1
            if a < b:
                return -1
            elif a > b:
                return 1
            return 0

        self.initActionTs()
        if id.getUpgrade():
            self.ts.ts.setProbFilter(~rpm.RPMPROB_FILTER_DISKSPACE)
        self.setColor()

        # If we don't have any required media assume single disc
        if self.tsInfo.reqmedia == {}:
            self.tsInfo.reqmedia[0] = None
        mkeys = self.tsInfo.reqmedia.keys()
        mkeys.sort(mediasort)
        for i in mkeys:
            self.tsInfo.curmedia = i
            if i > 0:
                pkgtup = self.tsInfo.reqmedia[i][0]

            try:
                self.dsCallback = DownloadHeaderProgress(intf, self)
                self.populateTs(keepold=0)
                self.dsCallback.pop()
                self.dsCallback = None
            except Exception, e:
                rc = intf.messageWindow(_("Error"),
                          _("There was an error running your transaction for "
                            "the following reason: %s\n") % str(e),
                            type="custom", custom_icon="error",
                            custom_buttons=[_("_Back"), _("_Exit installer")])

                if rc == 1:
                    sys.exit(1)
                else:
                    self.tsInfo.curmedia = None
                    return DISPATCH_BACK

            self.ts.check()
            self.ts.order()

            if self._run(instLog, cb, intf) == DISPATCH_BACK:
                self.tsInfo.curmedia = None
                return DISPATCH_BACK

    def _run(self, instLog, cb, intf):
        # set log fd.  FIXME: this is ugly.  see changelog entry from 2005-09-13
        self.ts.ts.scriptFd = instLog.fileno()
        rpm.setLogFile(instLog)

        uniqueProbs = {}
        spaceneeded = {}
        spaceprob = ""
        fileConflicts = []
        fileprob = ""

        try:
            self.runTransaction(cb=cb)
        except YumBaseError, probs:
            # FIXME: we need to actually look at these problems...
            probTypes = { rpm.RPMPROB_NEW_FILE_CONFLICT : _('file conflicts'),
                          rpm.RPMPROB_FILE_CONFLICT : _('file conflicts'),
                          rpm.RPMPROB_OLDPACKAGE: _('older package(s)'),
                          rpm.RPMPROB_DISKSPACE: _('insufficient disk space'),
                          rpm.RPMPROB_DISKNODES: _('insufficient disk inodes'),
                          rpm.RPMPROB_CONFLICT: _('package conflicts'),
                          rpm.RPMPROB_PKG_INSTALLED: _('package already installed'),
                          rpm.RPMPROB_REQUIRES: _('required package'),
                          rpm.RPMPROB_BADARCH: _('package for incorrect arch'),
                          rpm.RPMPROB_BADOS: _('package for incorrect os'),
            }

            for (descr, (type, mount, need)) in probs.value: # FIXME: probs.value???
                log.error("%s: %s" %(probTypes[type], descr))
                if not uniqueProbs.has_key(type) and probTypes.has_key(type):
                    uniqueProbs[type] = probTypes[type]

                if type == rpm.RPMPROB_DISKSPACE:
                    spaceneeded[mount] = need
                elif type in [rpm.RPMPROB_NEW_FILE_CONFLICT, rpm.RPMPROB_FILE_CONFLICT]:
                    fileConflicts.append(descr)

            if spaceneeded:
                spaceprob = _("You need more space on the following "
                              "file systems:\n")

                for (mount, need) in spaceneeded.items():
                    log.info("(%s, %s)" %(mount, need))

                    if mount.startswith("/mnt/sysimage/"):
                        mount.replace("/mnt/sysimage", "")
                    elif mount.startswith("/mnt/sysimage"):
                        mount = "/" + mount.replace("/mnt/sysimage", "")

                    spaceprob += "%d M on %s\n" % (need / (1024*1024), mount)
            elif fileConflicts:
                fileprob = _("There were file conflicts when checking the "
                             "packages to be installed:\n%s\n") % ("\n".join(fileConflicts),)

            msg = _("There was an error running your transaction for "
                    "the following reason(s): %s.\n") % ', '.join(uniqueProbs.values())

            if len(self.anaconda.backend.getRequiredMedia()) > 1:
                intf.detailedMessageWindow(_("Error Running Transaction"),
                   msg, spaceprob + "\n" + fileprob, type="custom",
                   custom_icon="error", custom_buttons=[_("_Exit installer")])
                sys.exit(1)
            else:
                rc = intf.detailedMessageWindow(_("Error running transaction"),
                        msg, spaceprob + "\n" + fileprob, type="custom",
                        custom_icon="error",
                        custom_buttons=[_("_Back"), _("_Exit installer")])

            if rc == 1:
                sys.exit(1)
            else:
                self._undoDepInstalls()
                return DISPATCH_BACK

    def doMacros(self):
        for (key, val) in self.macros.items():
            rpm.addMacro(key, val)

    def simpleDBInstalled(self, name, arch=None):
        # FIXME: doing this directly instead of using self.rpmdb.installed()
        # speeds things up by 400%
        mi = self.ts.ts.dbMatch('name', name)
        if mi.count() == 0:
            return False
        if arch is None:
            return True
        if arch in map(lambda h: h['arch'], mi):
            return True
        return False

    def isPackageInstalled(self, name = None, epoch = None, version = None,
                           release = None, arch = None, po = None):
        # FIXME: this sucks.  we should probably suck it into yum proper
        # but it'll need a bit of cleanup first.
        if po is not None:
            (name, epoch, version, release, arch) = po.returnNevraTuple()

        installed = False
        if name and not (epoch or version or release or arch):
            installed = self.simpleDBInstalled(name)
        elif self.rpmdb.installed(name = name, epoch = epoch, ver = version,
                                rel = release, arch = arch):
            installed = True

        lst = self.tsInfo.matchNaevr(name = name, epoch = epoch,
                                     ver = version, rel = release,
                                     arch = arch)
        for txmbr in lst:
            if txmbr.output_state in TS_INSTALL_STATES:
                return True
        if installed and len(lst) > 0:
            # if we get here, then it was installed, but it's in the tsInfo
            # for an erase or obsoleted --> not going to be installed at end
            return False
        return installed

    def isGroupInstalled(self, grp):
        if grp.selected:
            return True
        elif grp.installed and not grp.toremove:
            return True
        return False

class YumBackend(AnacondaBackend):
    def __init__ (self, anaconda):
        AnacondaBackend.__init__(self, anaconda)
        self.supportsPackageSelection = True

    def complete(self, anaconda):
        try:
            isys.umount(self.ayum.tree)
        except Exception:
            pass

        if anaconda.mediaDevice:
            try:
                shutil.copyfile("%s/media.repo" % self.ayum.tree,
                                "%s/etc/yum.repos.d/%s-install-media.repo" %(anaconda.rootPath, productName))
            except Exception, e:
                log.debug("Error copying media.repo: %s" %(e,))

            try:
                i = iniparse.ConfigParser()
                i.read("%s/media.repo" % self.ayum.tree)
                repo = i.sections()[0]
                del i
                shutil.copytree("%s/repodata" % self.ayum.tree,
                                "%s/var/cache/yum/%s" %(anaconda.rootPath, repo))
            except Exception, e:
                log.debug("Error setting up media repository: %s" %(e,))

        if self.ayum._loopbackFile and (anaconda.mediaDevice or self.ayum.isodir):
            try:
                os.unlink(self.ayum._loopbackFile)
            except SystemError:
                pass

    def doInitialSetup(self, anaconda):
        if anaconda.id.getUpgrade():
           # FIXME: make sure that the rpmdb doesn't have stale locks :/
           self._resetRpmDb(anaconda.rootPath)

        iutil.writeRpmPlatform()
        self.ayum = AnacondaYum(anaconda)

        if self.ayum.systemMounted (anaconda.id.fsset, anaconda.rootPath):
            anaconda.id.fsset.umountFilesystems(anaconda.rootPath)
            return DISPATCH_BACK
        else:
            return DISPATCH_FORWARD

    def doGroupSetup(self):
        # FIXME: this is a pretty ugly hack to make it so that we don't lose
        # groups being selected (#237708)
        sel = filter(lambda g: g.selected, self.ayum.comps.get_groups())
        self.ayum.doGroupSetup()
        # now we'll actually reselect groups..
        map(lambda g: self.selectGroup(g.groupid), sel)

        # and now, to add to the hacks, we'll make sure that packages don't
        # have groups double-listed.  this avoids problems with deselecting
        # groups later
        for txmbr in self.ayum.tsInfo.getMembers():
            txmbr.groups = yum.misc.unique(txmbr.groups)

        # FIXME: this is a bad hack to remove support for xen on xen (#179387)
        if os.path.exists("/proc/xen"):
            if self.ayum.comps._groups.has_key("virtualization"):
                del self.ayum.comps._groups["virtualization"]

        # FIXME: and another bad hack since our xen kernel is PAE
        if rpmUtils.arch.getBaseArch() == "i386" and "pae" not in iutil.cpuFeatureFlags():
            if self.ayum.comps._groups.has_key("virtualization"):
                del self.ayum.comps._groups["virtualization"]


    def doRepoSetup(self, anaconda, thisrepo = None, fatalerrors = True):
        # We want to call ayum.doRepoSetup one repo at a time so we have
        # some concept of which repo didn't set up correctly.
        repos = []

        # Don't do this if we're being called as a dispatcher step (instead
        # of being called when a repo is added via the UI) and we're going
        # back.
        if thisrepo is None and anaconda.dir == DISPATCH_BACK:
            return

        if thisrepo is not None:
            repos.append(self.ayum.repos.getRepo(thisrepo))
        else:
            repos.extend(self.ayum.repos.listEnabled())

        self.ayum.doMacros()

        longtasks = ( (self.ayum.doRepoSetup, 4),
                      (self.ayum.doSackSetup, 6) )

        tot = 0
        for t in longtasks:
            tot += t[1]

        for repo in repos:
            if repo.name is None:
                txt = _("Retrieving installation information...")
            else:
                txt = _("Retrieving installation information for %s...")%(repo.name)
            while 1:
                waitwin = YumProgress(anaconda.intf, txt, tot)
                self.ayum.repos.callback = waitwin

                try:
                    for (task, incr) in longtasks:
                        waitwin.set_incr(incr)
                        task(thisrepo = repo.id)
                        waitwin.next_task()
                    waitwin.pop()
                except Exception, e:
                    buttons = [_("_Exit installer"), _("Edit"), _("_Retry")]
                else:
                    break # success

                if anaconda.isKickstart:
                    buttons.append(_("_Continue"))

                waitwin.pop()
                if not fatalerrors:
                    raise RepoError, e

                rc = anaconda.intf.messageWindow(_("Error"),
                                   _("Unable to read package metadata. This may be "
                                     "due to a missing repodata directory.  Please "
                                     "ensure that your install tree has been "
                                     "correctly generated.\n\n%s" % e),
                                     type="custom", custom_icon="error",
                                     custom_buttons=buttons)
                if rc == 0:
                    # abort
                    sys.exit(0)
                elif rc == 1:
                    # edit
                    anaconda.intf.editRepoWindow(anaconda, repo)
                elif rc == 2:
                    # retry, but only if button is present
                    continue
                else:
                    # continue, but only if button is present
                    self.ayum.repos.delete(repo.id)
                    break

            # if we're in kickstart the repo may have been deleted just above
            try:
                self.ayum.repos.getRepo(repo.id)
            except RepoError:
                log.debug("repo %s has been removed" % (repo.id,))
                continue

            repo.setFailureObj(self.ayum.urlgrabberFailureCB)
            repo.setMirrorFailureObj((self.ayum.mirrorFailureCB, (),
                                     {"tsInfo":self.ayum.tsInfo, 
                                      "repo": repo.id}))

        while 1:
            try:
                self.doGroupSetup()
            except Exception, e:
                buttons = [_("_Exit installer"), _("_Retry")]
            else:
                break # success

            rc = anaconda.intf.messageWindow(_("Error"),
                                        _("Unable to read group information "
                                          "from repositories.  This is "
                                          "a problem with the generation "
                                          "of your install tree."),
                                        type="custom", custom_icon="error",
                                        custom_buttons = buttons)
            if rc == 0:
                sys.exit(0)
            else:
                self.ayum._setGroups(None)
                continue

        self._catchallCategory()
        self.ayum.repos.callback = None

    def _catchallCategory(self):
        # FIXME: this is a bad hack, but catch groups which aren't in
        # a category yet are supposed to be user-visible somehow.
        # conceivably should be handled by yum
        grps = {}
        for g in self.ayum.comps.groups:
            if g.user_visible:
                grps[g.groupid] = g

        for cat in self.ayum.comps.categories:
            for g in cat.groups:
                if grps.has_key(g):
                    del grps[g]

        if len(grps.keys()) == 0:
            log.info("no groups missing")
            return
        c = yum.comps.Category()
        c.name = _("Uncategorized")
        c._groups = grps
        c.categoryid = "uncategorized"
        self.ayum.comps._categories[c.categoryid] = c

    def getDefaultGroups(self, anaconda):
        langs = anaconda.id.instLanguage.getCurrentLangSearchList()
        rc = map(lambda x: x.groupid,
                 filter(lambda x: x.default, self.ayum.comps.groups))
        for g in self.ayum.comps.groups:
            if g.langonly in langs:
                rc.append(g.groupid)
        return rc

    def selectModulePackages(self, anaconda, kernelPkgName):
        (base, sep, ext) = kernelPkgName.partition("-")

        for (path, name) in anaconda.id.extraModules:
            if ext != "":
                moduleProvides = "kmod-%s-%s" % (name, ext)
            else:
                moduleProvides = "%s-kmod" % name

            pkgs = self.ayum.returnPackagesByDep(moduleProvides)

            if not pkgs:
                log.warning("Didn't find any package providing module %s" % name)

            for pkg in pkgs:
                if ext == "" and pkg.name == "kmod"+name:
                    log.info("selecting package %s for module %s" % (pkg.name, name))
                    self.ayum.install(po=pkg)
                elif ext != "" and pkg.name.find("-"+ext) != -1:
                    log.info("selecting package %s for module %s" % (pkg.name, name))
                    self.ayum.install(po=pkg)
                else:
                    continue

    def selectBestKernel(self, anaconda):
        """Find the best kernel package which is available and select it."""

        def getBestKernelByArch(pkgname, ayum):
            """Convenience func to find the best arch of a kernel by name"""
            pkgs = ayum.pkgSack.returnNewestByName(pkgname)
            if len(pkgs) == 0:
                return None
            pkgs = self.ayum.bestPackagesFromList(pkgs)
            if len(pkgs) == 0:
                return None
            return pkgs[0]

        foundkernel = False
        kpkg = getBestKernelByArch("kernel", self.ayum)

        # FIXME: this is a bit of a hack.  we shouldn't hard-code and
        # instead check by provides.  but alas.
        for k in ("kernel", "kernel-smp", "kernel-xen0", "kernel-xen",
                  "kernel-PAE"):
            if len(self.ayum.tsInfo.matchNaevr(name=k)) > 0:
                self.selectModulePackages(anaconda, k)
                foundkernel = True

        if not foundkernel and os.path.exists("/proc/xen"):
            try:
                kxen = getBestKernelByArch("kernel-xen", self.ayum)
                log.info("selecting kernel-xen package for kernel")
                foundkernel = True
            except PackageSackError:
                kxen = None
                log.debug("no kernel-xen package")
            else:
                self.ayum.install(po = kxen)
                self.selectModulePackages(anaconda, kxen.name)
                if len(self.ayum.tsInfo.matchNaevr(name="gcc")) > 0:
                    log.debug("selecting kernel-xen-devel")
                    self.selectPackage("kernel-xen-devel.%s" % (kxen.arch,))

        if not foundkernel and (isys.smpAvailable() or isys.htavailable()):
            try:
                ksmp = getBestKernelByArch("kernel-smp", self.ayum)
            except PackageSackError:
                ksmp = None
                log.debug("no kernel-smp package")

            if ksmp and ksmp.returnSimple("arch") == kpkg.returnSimple("arch"):
                foundkernel = True
                log.info("selected kernel-smp package for kernel")
                self.ayum.install(po=ksmp)
                self.selectModulePackages(anaconda, ksmp.name)

                if len(self.ayum.tsInfo.matchNaevr(name="gcc")) > 0:
                    log.debug("selecting kernel-smp-devel")
                    self.selectPackage("kernel-smp-devel.%s" % (kpkg.arch,))

        if not foundkernel and isys.isPaeAvailable():
            try:
                kpae = getBestKernelByArch("kernel-PAE", self.ayum)
            except PackageSackError:
                kpae = None
                log.debug("no kernel-PAE package")

            if kpae and kpae.returnSimple("arch") == kpkg.returnSimple("arch"):
                foundkernel = True
                log.info("select kernel-PAE package for kernel")
                self.ayum.install(po=kpae)
                self.selectModulePackages(anaconda, kpae.name)

                if len(self.ayum.tsInfo.matchNaevr(name="gcc")) > 0:
                    log.debug("selecting kernel-PAE-devel")
                    self.selectPackage("kernel-PAE-devel.%s" % (kpkg.arch,))

        if not foundkernel:
            log.info("selected kernel package for kernel")
            self.ayum.install(po=kpkg)
            self.selectModulePackages(anaconda, kpkg.name)

            if len(self.ayum.tsInfo.matchNaevr(name="gcc")) > 0:
                log.debug("selecting kernel-devel")
                self.selectPackage("kernel-devel.%s" % (kpkg.arch,))

    def selectBootloader(self):
        if rhpl.getArch() in ("i386", "x86_64"):
            self.selectPackage("grub")
        elif rhpl.getArch() == "s390":
            self.selectPackage("s390utils")
        elif rhpl.getArch() == "ppc":
            self.selectPackage("yaboot")
        # XXX this needs to become grub, and we need an upgrade path...
        elif rhpl.getArch() == "ia64":
            self.selectPackage("elilo")

    def selectFSPackages(self, fsset, diskset):
        for entry in fsset.entries:
            map(self.selectPackage, entry.fsystem.getNeededPackages())
            if entry.device.crypto:
                self.selectPackage("cryptsetup-luks")

        for disk in diskset.disks.keys():
            if isys.driveIsIscsi(disk):
                log.info("ensuring iscsi is installed")
                self.selectPackage("iscsi-initiator-utils")
                break

        if diskset.__class__.mpList:
            log.info("ensuring device-mapper-multipath is installed")
            self.selectPackage("device-mapper-multipath")
        if diskset.__class__.dmList:
            log.info("ensuring dmraid is installed")
            self.selectPackage("dmraid")


    # anaconda requires several programs on the installed system to complete
    # installation, but we have no guarantees that some of these will be
    # installed (they could have been removed in kickstart).  So we'll force
    # it.
    def selectAnacondaNeeds(self):
        for pkg in ['authconfig', 'chkconfig', 'mkinitrd', 'rhpl',
                    'system-config-firewall-tui']:
            self.selectPackage(pkg)

    def doPostSelection(self, anaconda):
        # Only solve dependencies on the way through the installer, not the way back.
        if anaconda.dir == DISPATCH_BACK:
            return

        dscb = YumDepSolveProgress(anaconda.intf, self.ayum)
        self.ayum.dsCallback = dscb

        # do some sanity checks for kernel and bootloader
        self.selectBestKernel(anaconda)
        self.selectBootloader()
        self.selectFSPackages(anaconda.id.fsset, anaconda.id.diskset)

        self.selectAnacondaNeeds()

        if anaconda.id.getUpgrade():
            from upgrade import upgrade_remove_blacklist
            self.upgradeFindPackages()
            for pkg in upgrade_remove_blacklist:
                pkgarch = None
                pkgnames = None
                if len(pkg) == 1:
                    pkgname = pkg[0]
                elif len(pkg) == 2:
                    pkgname, pkgarch = pkg
                if pkgname is None:
                    continue
                self.ayum.remove(name=pkgname, arch=pkgarch)
            self.ayum.update()

        try:
            while 1:
                try:
                    (code, msgs) = self.ayum.buildTransaction()
                except Exception, e:
                    buttons = [_("_Exit installer"), "gtk-edit", _("_Retry")]
                else:
                    break


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