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#
# autopart.py - auto partitioning logic
#
# Jeremy Katz <katzj@redhat.com>
#
# Copyright 2001-2002 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 parted
import math
import copy
import string, sys
import fsset
import lvm
from partitioning import *
import partedUtils
import partRequests
from constants import *
from partErrors import *

from rhpl.translate import _, N_
from rhpl.log import log

PARTITION_FAIL = -1
PARTITION_SUCCESS = 0

BOOT_ABOVE_1024 = -1
BOOTEFI_NOT_VFAT = -2

DEBUG_LVM_GROW = 0

# check that our "boot" partition meets necessary constraints unless
# the request has its ignore flag set
def bootRequestCheck(requests, diskset):
    dev = requests.getBootableRequest()
    if not dev or not dev.device or dev.ignoreBootConstraints:
        return PARTITION_SUCCESS
    part = partedUtils.get_partition_by_name(diskset.disks, dev.device)
    if not part:
        return PARTITION_SUCCESS

    
    if iutil.getArch() == "ia64":
        if part.fs_type.name != "FAT":
            return BOOTEFI_NOT_VFAT
        pass
    elif iutil.getArch() == "i386":
        if partedUtils.end_sector_to_cyl(part.geom.disk.dev, part.geom.end) >= 1024:
            return BOOT_ABOVE_1024
        
    return PARTITION_SUCCESS

def printNewRequestsCyl(diskset, newRequest):
    for req in newRequest.requests:
        if req.type != REQUEST_NEW:
            continue
        
        part = partedUtils.get_partition_by_name(diskset.disks, req.device)
        print req
        print "Start Cyl:%s    End Cyl: %s" % (partedUtils.start_sector_to_cyl(part.geom.disk.dev, part.geom.start),
                                 partedUtils.end_sector_to_cyl(part.geom.disk.dev, part.geom.end))

def printFreespaceitem(part):
    return partedUtils.get_partition_name(part), part.geom.start, part.geom.end, partedUtils.getPartSizeMB(part)

def printFreespace(free):
    print "Free Space Summary:"
    for drive in free.keys():
        print "On drive ",drive
        for part in free[drive]:
            print "Freespace:", printFreespaceitem(part)
        

def findFreespace(diskset):
    free = {}
    for drive in diskset.disks.keys():
        disk = diskset.disks[drive]
        free[drive] = []
        part = disk.next_partition()
        while part:
            if part.type & parted.PARTITION_FREESPACE:
                free[drive].append(part)
            part = disk.next_partition(part)
    return free


def bestPartType(disk, request):
    numPrimary = len(partedUtils.get_primary_partitions(disk))
    maxPrimary = disk.max_primary_partition_count
    if numPrimary == maxPrimary:
        raise PartitioningError, "Unable to create additional primary partitions on /dev/%s" % (disk.dev.path[5:])
    if request.primary:
        return parted.PARTITION_PRIMARY
    if (numPrimary == (maxPrimary - 1)) and not disk.extended_partition:
        return parted.PARTITION_EXTENDED
    return parted.PARTITION_PRIMARY

class partlist:
    def __init__(self):
        self.parts = []

    def __str__(self):
        retval = ""
        for p in self.parts:
            retval = retval + "\t%s %s %s\n" % (partedUtils.get_partition_name(p), partedUtils.get_partition_file_system_type(p), partedUtils.getPartSizeMB(p))

        return retval

    def reset(self):
        dellist = []
        for part in self.parts:
            dellist.append(part)

        for part in dellist:
            self.parts.remove(part)
            del part
            
        self.parts = []


# first step of partitioning voodoo
# partitions with a specific start and end cylinder requested are
# placed where they were asked to go
def fitConstrained(diskset, requests, primOnly=0, newParts = None):
    bootreq = requests.getBootableRequest()
    
    for request in requests.requests:
        if request.type != REQUEST_NEW:
            continue
        if request.device:
            continue
        if primOnly and not request.primary and request != bootreq:
            continue
        if request.drive and (request.start != None):
            if not request.end and not request.size:
                raise PartitioningError, "Tried to create constrained partition without size or end"

            fsType = request.fstype.getPartedFileSystemType()
            disk = diskset.disks[request.drive[0]]
            if not disk: # this shouldn't happen
                raise PartitioningError, "Selected to put partition on non-existent disk!"

            startSec = partedUtils.start_cyl_to_sector(disk.dev, request.start)

            if request.end:
                endCyl = request.end
            elif request.size:
                endCyl = partedUtils.end_sector_to_cyl(disk.dev, ((1024L * 1024L * request.size) / disk.dev.sector_size) + startSec)

            endSec = partedUtils.end_cyl_to_sector(disk.dev, endCyl)

            if endSec > disk.dev.length:
                raise PartitioningError, "Unable to create partition which extends beyond the end of the disk."

            # XXX need to check overlaps properly here
            if startSec < 0:
                startSec = 0L

            if disk.type.check_feature(parted.DISK_TYPE_EXTENDED) and disk.extended_partition:
                
                if (disk.extended_partition.geom.start < startSec) and (disk.extended_partition.geom.end > endSec):
                    partType = parted.PARTITION_LOGICAL
                    if request.primary: # they've required a primary and we can't do it
                        return PARTITION_FAIL
                else:
                    partType = parted.PARTITION_PRIMARY
            else:
                # XXX need a better way to do primary vs logical stuff
                ret = bestPartType(disk, request)
                if ret == PARTITION_FAIL:
                    return ret
                if ret == parted.PARTITION_PRIMARY:
                    partType = parted.PARTITION_PRIMARY
                elif ret == parted.PARTITION_EXTENDED:
                    newp = disk.partition_new(parted.PARTITION_EXTENDED, None, startSec, endSec)
                    constraint = disk.constraint_any()
                    disk.add_partition(newp, constraint)
                    disk.maximize_partition (newp, constraint)
                    newParts.parts.append(newp)
                    requests.nextUniqueID = requests.nextUniqueID + 1
                    partType = parted.PARTITION_LOGICAL
                else: # shouldn't get here
                    raise PartitioningError, "Impossible partition type to create"
            newp = disk.partition_new (partType, fsType, startSec, endSec)
            constraint = disk.constraint_any ()
            try:
                disk.add_partition (newp, constraint)

            except parted.error, msg:
                return PARTITION_FAIL
#                raise PartitioningError, msg
            for flag in request.fstype.getPartedPartitionFlags():
                if not newp.is_flag_available(flag):
                    disk.delete_partition(newp)
                    raise PartitioningError, ("requested FileSystemType needs "
                                           "a flag that is not available.")
                newp.set_flag(flag, 1)
            request.device = fsset.PartedPartitionDevice(newp).getDevice()
            request.currentDrive = request.drive[0]
            newParts.parts.append(newp)

    return PARTITION_SUCCESS


# get the list of the "best" drives to try to use...
# if currentdrive is set, use that, else use the drive list, or use
# all the drives
def getDriveList(request, diskset):
    if request.currentDrive:
        drives = request.currentDrive
    elif request.drive:
        drives = request.drive
    else:
        drives = diskset.disks.keys()

    if not type(drives) == type([]):
        drives = [ drives ]

    drives.sort()

    return drives
    

# fit partitions of a specific size with or without a specific disk
# into the freespace
def fitSized(diskset, requests, primOnly = 0, newParts = None):
    todo = {}
    bootreq = requests.getBootableRequest()

    for request in requests.requests:
        if request.type != REQUEST_NEW:
            continue
        if request.device:
            continue
        if primOnly and not request.primary and request != bootreq:
            continue
        if request == bootreq:
            drives = getDriveList(request, diskset)
            numDrives = 0 # allocate bootable requests first
        else:
            drives = getDriveList(request, diskset)
            numDrives = len(drives)
        if not todo.has_key(numDrives):
            todo[numDrives] = [ request ]
        else:
            todo[numDrives].append(request)

    number = todo.keys()
    number.sort()
    free = findFreespace(diskset)

    for num in number:
        for request in todo[num]:
#            print "\nInserting ->",request
            if requests.isBootable(request):
                isBoot = 1
            else:
                isBoot = 0
                
            largestPart = (0, None)
            drives = getDriveList(request, diskset)
#            log("Trying drives to find best free space out of", free)
            for drive in drives:
                # this request is bootable and we've found a large enough
                # partition already, so we don't need to keep trying other
                # drives.  this keeps us on the first possible drive
                if isBoot and largestPart[1]:
                    break
#                print "Trying drive", drive
                disk = diskset.disks[drive]
                numPrimary = len(partedUtils.get_primary_partitions(disk))

                # if there is an extended partition add it in
		if disk.extended_partition:
		    numPrimary = numPrimary + 1
		    
                maxPrimary = disk.max_primary_partition_count

                for part in free[drive]:
		    # if this is a free space outside extended partition
		    # make sure we have free primary partition slots
		    if not part.type & parted.PARTITION_LOGICAL:
			if numPrimary == maxPrimary:
			    continue
		    
#                    log( "Trying partition %s" % (printFreespaceitem(part),))
                    partSize = partedUtils.getPartSizeMB(part)
#		    log("partSize %s  request %s" % (partSize, request.requestSize))
                    if partSize >= request.requestSize and partSize > largestPart[0]:
                        if not request.primary or (not part.type & parted.PARTITION_LOGICAL):
                            largestPart = (partSize, part)
                            if isBoot:
                                break

            if not largestPart[1]:
                return PARTITION_FAIL
#                raise PartitioningError, "Can't fulfill request for partition: \n%s" %(request)

#            log( "largestPart is %s" % (largestPart,))
            freespace = largestPart[1]
            freeStartSec = freespace.geom.start
            freeEndSec = freespace.geom.end

            disk = freespace.geom.disk

            startSec = freeStartSec
            endSec = startSec + long(((request.requestSize * 1024L * 1024L) / disk.dev.sector_size)) - 1

            if endSec > freeEndSec:
                endSec = freeEndSec
            if startSec < freeStartSec:
                startSec = freeStartSec

            if freespace.type & parted.PARTITION_LOGICAL:
                partType = parted.PARTITION_LOGICAL
            else:
                # XXX need a better way to do primary vs logical stuff
                ret = bestPartType(disk, request)
                if ret == PARTITION_FAIL:
                    return ret
                if ret == parted.PARTITION_PRIMARY:
                    partType = parted.PARTITION_PRIMARY
                elif ret == parted.PARTITION_EXTENDED:
                    newp = disk.partition_new(parted.PARTITION_EXTENDED, None, startSec, endSec)
                    constraint = disk.constraint_any()
                    disk.add_partition(newp, constraint)
                    disk.maximize_partition (newp, constraint)
                    newParts.parts.append(newp)
                    requests.nextUniqueID = requests.nextUniqueID + 1
                    partType = parted.PARTITION_LOGICAL

                    # now need to update freespace since adding extended
                    # took some space
                    found = 0
                    part = disk.next_partition()
                    while part:
                        if part.type & parted.PARTITION_FREESPACE:
                            if part.geom.start > freeStartSec and part.geom.end <= freeEndSec:
                                found = 1
                                freeStartSec = part.geom.start
                                freeEndSec = part.geom.end
                                break

                        part = disk.next_partition(part)

                    if not found:
                        raise PartitioningError, "Could not find free space after making new extended partition"

                    startSec = freeStartSec
                    endSec = startSec + long(((request.requestSize * 1024L * 1024L) / disk.dev.sector_size)) - 1

                    if endSec > freeEndSec:
                        endSec = freeEndSec
                    if startSec < freeStartSec:
                        startSec = freeStartSec

                else: # shouldn't get here
                    raise PartitioningError, "Impossible partition to create"

            fsType = request.fstype.getPartedFileSystemType()
#            log("creating newp with start=%s, end=%s, len=%s" % (startSec, endSec, endSec - startSec))
            newp = disk.partition_new (partType, fsType, startSec, endSec)
            constraint = disk.constraint_any ()

            try:
                disk.add_partition (newp, constraint)
            except parted.error, msg:
                return PARTITION_FAIL                
#                raise PartitioningError, msg
            for flag in request.fstype.getPartedPartitionFlags():
                if not newp.is_flag_available(flag):
                    disk.delete_partition(newp)                    
                    raise PartitioningError, ("requested FileSystemType needs "
                                           "a flag that is not available.")
                newp.set_flag(flag, 1)

            request.device = fsset.PartedPartitionDevice(newp).getDevice()
            drive = newp.geom.disk.dev.path[5:]
            request.currentDrive = drive
            newParts.parts.append(newp)
            free = findFreespace(diskset)

    return PARTITION_SUCCESS

# grow logical partitions
#
# do this ONLY after all other requests have been allocated
# we just go through and adjust the size for the logical
# volumes w/o rerunning process partitions
#
def growLogicalVolumes(diskset, requests):

    if requests is None or diskset is None:
	return

    # iterate over each volume group, grow logical volumes in each
    for vgreq in requests.requests:
	if vgreq.type != REQUEST_VG:
	    continue

#	print "In growLogicalVolumes, considering VG ", vgreq
	log("In growLogicalVolumes, considering VG %s", vgreq)
	lvreqs = requests.getLVMLVForVG(vgreq)

	if lvreqs is None or len(lvreqs) < 1:
#	    print "Apparently it had no logical volume requests, skipping..."
	    log("Apparently it had no logical volume requests, skipping...")
	    continue

	# come up with list of logvol that are growable
	growreqs = []
	for lvreq in lvreqs:
	    if lvreq.grow:
		growreqs.append(lvreq)

	# bail if none defined
        if len(growreqs) < 1:
	    log("No growable logical volumes defined.")
	    return

	log("VG %s has these growable logical volumes: %s",  vgreq.volumeGroupName, growreqs)

#	print "VG %s has these growable logical volumes: %s" % (vgreq.volumeGroupName, growreqs)

	# store size we are starting at
	initsize = {}
	cursize = {}
	for req in growreqs:
	    size = req.getActualSize(requests, diskset)
	    initsize[req.logicalVolumeName] = size
	    cursize[req.logicalVolumeName] = size
#	    print "init sizes",req.logicalVolumeName, size
            if DEBUG_LVM_GROW:
		log("init sizes for %s: %s",req.logicalVolumeName, size)
	    
	# now dolly out free space to all growing LVs
	bailcount = 0
	while 1:
	    nochange = 1
	    completed = []
	    for req in growreqs:
#		print "considering ",req.logicalVolumeName, req.getStartSize()
                if DEBUG_LVM_GROW:
		    log("considering %s, start size = %s",req.logicalVolumeName, req.getStartSize())
		    
		# get remaining free space
		vgfree = lvm.getVGFreeSpace(vgreq, requests, diskset)

#		print "vgfree = ", vgfree
                if DEBUG_LVM_GROW:
		    log("Free space in VG = %s",vgfree)
		    
		# compute fraction of remaining requests this
		# particular request represents
		totsize = 0.0
		for otherreq in growreqs:
		    if otherreq in completed:
			continue

		    if DEBUG_LVM_GROW:
			log("adding in %s %s %s", otherreq.logicalVolumeName, otherreq.getStartSize(), otherreq.maxSizeMB)
		    
#		    print "adding in ", otherreq.logicalVolumeName, otherreq.getStartSize(), otherreq.maxSizeMB
		    size = otherreq.getActualSize(requests, diskset)
		    if otherreq.maxSizeMB:
			if size < otherreq.maxSizeMB:
			    totsize = totsize + otherreq.getStartSize()
			else:
			    if DEBUG_LVM_GROW:
				log("%s is now at %s, and passed maxsize of %s", otherreq.logicalVolumeName, size, otherreq.maxSizeMB)
		    else:
			totsize = totsize + otherreq.getStartSize()

		if DEBUG_LVM_GROW:
		    log("totsize -> %s",totsize)

#		print "totsize ->", totsize

                # if totsize is zero we have no growable reqs left
		if totsize == 0:
		    break
		
		fraction = float(req.getStartSize())/float(totsize)

		newsize = cursize[req.logicalVolumeName] + vgfree*fraction
		if req.maxSizeMB:
		    newsize = min(newsize, req.maxSizeMB)
		    
		req.size = lvm.clampLVSizeRequest(newsize, vgreq.pesize)
		if req.size != cursize[req.logicalVolumeName]:
		    nochange = 0

		cursize[req.logicalVolumeName] = req.size
		
#		print req.logicalVolumeName, req.size, vgfree, fraction

                if DEBUG_LVM_GROW:
		    log("Name, size, cursize, vgfree, fraction = %s %s %s %s %s", req.logicalVolumeName, req.size, cursize[req.logicalVolumeName], vgfree, fraction)
		    
		completed.append(req)

	    if nochange:
		log("In growLogicalVolumes, no changes in size so breaking")
		break
		
	    bailcount = bailcount + 1
	    if bailcount > 10:
		log("In growLogicalVolumes, bailing after 10 interations.")
		break
		

	

# grow partitions
def growParts(diskset, requests, newParts):

    # returns free space segments for each drive IN SECTORS
    def getFreeSpace(diskset):
        free = findFreespace(diskset)
        freeSize = {}

        # find out the amount of free space on each drive
        for key in free.keys():
            if len(free[key]) == 0:
                del free[key]
                continue
            freeSize[key] = 0
            for part in free[key]:
                freeSize[key] = freeSize[key] + partedUtils.getPartSize(part)

        return (free, freeSize)

    ####
    # start of growParts
    ####
    newRequest = requests.copy()

#    print "new requests"
#    printNewRequestsCyl(diskset, requests)
#    print "orig requests"
#    printNewRequestsCyl(diskset, newRequest)
#    print "\n\n\n"
    
    (free, freeSize) = getFreeSpace(diskset)

    # find growable partitions
    growable = {}
    growSize = {}
    origSize = {}
    for request in newRequest.requests:
        if request.type != REQUEST_NEW or not request.grow:
            continue

        origSize[request.uniqueID] = request.requestSize
        if not growable.has_key(request.currentDrive):
            growable[request.currentDrive] = [ request ]
        else:
            growable[request.currentDrive].append(request)

    # there aren't any drives with growable partitions, this is easy!
    if not growable.keys():
        return PARTITION_SUCCESS
    
#    print "new requests before looping"
#    printNewRequestsCyl(diskset, requests)
#    print "\n\n\n"

    # loop over all drives, grow all growable partitions one at a time
    grownList = []
    for drive in growable.keys():
        # no free space on this drive, so can't grow any of its parts
        if not free.has_key(drive):
            continue

        # process each request
        # grow all growable partitions on this drive until all can grow no more
        donegrowing = 0
        outer_iter = 0
        lastFreeSize = None
        while not donegrowing and outer_iter < 20:
            # if less than one sector left, we're done
#            if drive not in freeSize.keys() or freeSize[drive] == lastFreeSize:
            if drive not in freeSize.keys():
#                print "leaving outer loop because no more space on %s\n\n" % drive
                break
##             print "\nAt start:"
##             print drive,freeSize.keys()
##             print freeSize[drive], lastFreeSize
##             print "\n"

##             print diskset.diskState()
            
            
            outer_iter = outer_iter + 1
            donegrowing = 1

            # pull out list of requests we want to grow on this drive
            growList = growable[drive]

            sector_size = diskset.disks[drive].dev.sector_size
            cylsectors = diskset.disks[drive].dev.sectors*diskset.disks[drive].dev.heads
            
            # sort in order of request size, consider biggest first
            n = 0
            while n < len(growList):
                for request in growList:
                    if request.size < growList[n].size:
                        tmp = growList[n]
                        index = growList.index(request)
                        growList[n] = request
                        growList[index] = tmp
                n = n + 1

            # recalculate the total size of growable requests for this drive
            # NOTE - we add up the ORIGINAL requested sizes, not grown sizes
            growSize[drive] = 0
            for request in growList:
                if request.uniqueID in grownList:
                    continue
                growSize[drive] = growSize[drive] + origSize[request.uniqueID]

            thisFreeSize = getFreeSpace(diskset)[1]
            # loop over requests for this drive
            for request in growList:
                # skip if we've finished growing this request
                if request.uniqueID in grownList:
                    continue

                if drive not in freeSize.keys():
                    donegrowing = 1
#                    print "leaving inner loop because no more space on %s\n\n" % drive
                    break

#                print "\nprocessing ID",request.uniqueID, request.mountpoint
#                print "growSize, freeSize = ",growSize[drive], freeSize[drive]

                donegrowing = 0

                # get amount of space actually used by current allocation
                part = partedUtils.get_partition_by_name(diskset.disks, request.device)
                startSize = partedUtils.getPartSize(part)

                # compute fraction of freespace which to give to this
                # request. Weight by original request size
                percent = origSize[request.uniqueID] / (growSize[drive] * 1.0)
                growby = long(percent * thisFreeSize[drive])
                if growby < cylsectors:
                    growby = cylsectors;
                maxsect = startSize + growby

#                print request
#                print "percent, growby, maxsect, free", percent, growby, maxsect,freeSize[drive], startSize, lastFreeSize
#                print "max is ",maxsect

                imposedMax = 0
                if request.maxSizeMB:
                    # round down a cylinder, see comment below
                    tmpint = request.maxSizeMB*1024.0*1024.0/sector_size
                    tmpint = long(tmpint / cylsectors)
                    maxUserSize = tmpint * cylsectors
                    if maxsect > maxUserSize:
                        maxsect = long(maxUserSize)
                        imposedMax = 1

                # round max fs limit down a cylinder, helps when growing
                # so we don't end up with a free cylinder at end if
                # maxlimit fell between cylinder boundaries
                tmpint = request.fstype.getMaxSizeMB()*1024.0*1024.0/sector_size
                tmpint = long(tmpint / cylsectors)
                maxFSSize = tmpint * cylsectors
                if maxsect > maxFSSize:
                    maxsect = long(maxFSSize)
                    imposedMax = 1

#                print "freesize, max = ",freeSize[drive],maxsect
#                print "startsize = ",startSize

                min = startSize
                max = maxsect
                diff = max - min
                cur = max - (diff / 2)
                lastDiff = 0

                # binary search
#                print "start min, max, cur, diffs = ",min,max,cur,diff,lastDiff
                inner_iter = 0
                ret = PARTITION_SUCCESS # request succeeded with initial size
                while (max != min) and (lastDiff != diff) and (inner_iter < 2000):
#                    printNewRequestsCyl(diskset, newRequest)

                    # XXX need to request in sectors preferably, more accurate
#		    print "trying cur=%s" % cur
                    request.requestSize = (cur*sector_size)/1024.0/1024.0

                    # try adding
                    (ret, msg) = processPartitioning(diskset, newRequest, newParts)
#                    if ret == PARTITION_FAIL:
#                        print "!!!!!!!!!!! processPartitioning failed - %s" % msg
                        
                    if ret == PARTITION_SUCCESS:
                        min = cur
                    else:
                        max = cur

                    lastDiff = diff
                    diff = max - min

#                    print min, max, diff, cylsectors
#                    print diskset.diskState()

                    cur = max - (diff / 2)

                    inner_iter = inner_iter + 1
#                    print "sizes at end of loop - cur: %s min:%s max:%s diff:%s lastDiff:%s" % (cur,min,max,diff,lastDiff)

#                freeSize[drive] = freeSize[drive] - (min - startSize)
#                print "shrinking freeSize to ",freeSize[drive], lastFreeSize
#                if freeSize[drive] < 0:
#                    print "freesize < 0!"
#                    freeSize[drive] = 0
                
                # we could have failed on the last try, in which case we
                # should go back to the smaller size
                if ret == PARTITION_FAIL:
#                    print "growing finally failed at size", min
                    request.requestSize = min*sector_size/1024.0/1024.0
                    # XXX this can't fail (?)
                    (retxxx, msgxxx) = processPartitioning(diskset, newRequest, newParts)

#                print "end min, max, cur, diffs = ",min,max,cur,diff,lastDiff
#                print "%s took %s loops" % (request.mountpoint, inner_iter)
                lastFreeSize = freeSize[drive]
                (free, freeSize) = getFreeSpace(diskset)
#                printFreespace(free)

                if ret == PARTITION_FAIL or (max == maxsect and imposedMax):
#                    print "putting ",request.uniqueID,request.mountpoint," in grownList"
                    grownList.append(request.uniqueID)
                    growSize[drive] = growSize[drive] - origSize[request.uniqueID]
                    if growSize[drive] < 0:
#                        print "growsize < 0!"
                        growSize[drive] = 0

    return PARTITION_SUCCESS


def setPreexistParts(diskset, requests, newParts):
    for request in requests:
        if request.type != REQUEST_PREEXIST:
            continue
        disk = diskset.disks[request.drive]
        part = disk.next_partition()
        while part:
            if part.geom.start == request.start and part.geom.end == request.end:
                request.device = partedUtils.get_partition_name(part)
                if request.fstype:
                    if request.fstype.getName() != request.origfstype.getName():
                        if request.fstype.getName() == "software RAID":
                            part.set_flag(parted.PARTITION_RAID, 1)
                        else:
                            part.set_flag(parted.PARTITION_RAID, 0)

                        if request.fstype.getName() == "physical volume (LVM)":
                            part.set_flag(parted.PARTITION_LVM, 1)
                        else:
                            part.set_flag(parted.PARTITION_LVM, 0)

                        partedUtils.set_partition_file_system_type(part, request.fstype)
                            
                break
            part = disk.next_partition(part)


def deletePart(diskset, delete):
    disk = diskset.disks[delete.drive]
    part = disk.next_partition()
    while part:
        if part.geom.start == delete.start and part.geom.end == delete.end:
            disk.delete_partition(part)
            return
        part = disk.next_partition(part)

def processPartitioning(diskset, requests, newParts):
    # collect a hash of all the devices that we have created extended
    # partitions on.  When we remove these extended partitions the logicals
    # (all of which we created) will be destroyed along with it.
    extendeds = {}

    for part in newParts.parts:
        if part.type == parted.PARTITION_EXTENDED:
            extendeds[part.geom.disk.dev.path] = None

    # Go through the list again and check for each logical partition we have.
    # If we created the extended partition on the same device as the logical
    # partition, remove it from out list, as it will be cleaned up for us
    # when the extended partition gets removed.
    dellist = []
    for part in newParts.parts:
        if (part.type & parted.PARTITION_LOGICAL
            and extendeds.has_key(part.geom.disk.dev.path)):
            dellist.append(part)

    for part in dellist:
        newParts.parts.remove(part)

    # Finally, remove all of the partitions we added in the last try from
    # the disks.  We'll start again from there.
    for part in newParts.parts:
        disk = part.geom.disk
#        disk = diskset.disks[partedUtils.get_partition_drive(part)]
        disk.delete_partition(part)

    newParts.reset()

    for request in requests.requests:
        if request.type == REQUEST_NEW:
            request.device = None

    setPreexistParts(diskset, requests.requests, newParts)

    # sort requests by size
    requests.sortRequests()
    
    # partitioning algorithm in simplistic terms
    #
    # we want to allocate partitions such that the most specifically
    # spelled out partitions get what they want first in order to ensure
    # they don't get preempted.  first conflict found returns an error
    # which must be handled by the caller by saying that the partition
    # add is impossible (XXX can we get an impossible situation after delete?)
    #
    # potentially confusing terms
    # type == primary vs logical
    #
    # order to allocate:
    # start and end cylinders given (note that start + size & !grow is equivalent)
    # drive, partnum
    # drive, type
    # drive
    # priority partition (/boot or /)
    # size

    # run through with primary only constraints first
    ret = fitConstrained(diskset, requests, 1, newParts)
    if ret == PARTITION_FAIL:
        return (ret, _("Could not allocate cylinder-based partitions as primary partitions"))
    ret = fitSized(diskset, requests, 1, newParts)
    if ret == PARTITION_FAIL:
        return (ret, _("Could not allocate partitions as primary partitions"))
    ret = fitConstrained(diskset, requests, 0, newParts)
    if ret == PARTITION_FAIL:
        return (ret, _("Could not allocate cylinder-based partitions"))
    ret = fitSized(diskset, requests, 0, newParts)
    if ret == PARTITION_FAIL:
        return (ret, _("Could not allocate partitions"))
    for request in requests.requests:
        # set the unique identifier for raid and lvm devices
        if request.type == REQUEST_RAID and not request.device:
            request.device = str(request.uniqueID)
        if request.type == REQUEST_VG and not request.device:
            request.device = str(request.uniqueID)
        # anything better we can use for the logical volume?
        if request.type == REQUEST_LV and not request.device:
            request.device = str(request.uniqueID)

        if not request.device:
#            return PARTITION_FAIL
            raise PartitioningError, "Unsatisfied partition request\n%s" %(request)


    # get the sizes for raid devices, vgs, and logical volumes
    for request in requests.requests:
        if request.type == REQUEST_RAID:
            request.size = request.getActualSize(requests, diskset)
        if request.type == REQUEST_VG:
            request.size = request.getActualSize(requests, diskset)
        if request.type == REQUEST_LV and request.percent:
	    if request.grow:
		request.size = request.getStartSize()
	    else:
		request.size = request.getActualSize(requests, diskset)
		
            vgreq = requests.getRequestByID(request.volumeGroup)

    return (PARTITION_SUCCESS, "success")            
##     print "disk layout after everything is done"
##     print diskset.diskState()

def doPartitioning(diskset, requests, doRefresh = 1):
    for request in requests.requests:
        request.requestSize = request.size
        request.currentDrive = None

    if doRefresh:
        diskset.refreshDevices()
        # XXX - handle delete requests
        for delete in requests.deletes:
            if isinstance(delete, partRequests.DeleteSpec):
                deletePart(diskset, delete)
            # FIXME: do we need to do anything with other types of deletes??

    newParts = partlist()
    (ret, msg) = processPartitioning(diskset, requests, newParts)

    if ret == PARTITION_FAIL:
        raise PartitioningError, "Partitioning failed: %s" %(msg)
    ret = growParts(diskset, requests, newParts)

    newParts.reset()

    if ret != PARTITION_SUCCESS:
        raise PartitioningError, "Growing partitions failed"

    ret = bootRequestCheck(requests, diskset)

    if ret != PARTITION_SUCCESS:
        # more specific message?
        raise PartitioningWarning, _("Boot partition %s may not meet booting constraints for your architecture.  Creation of a boot disk is highly encouraged.") %(requests.getBootableRequest().mountpoint)

    # now grow the logical partitions
    growLogicalVolumes(diskset, requests)
    
    # make sure our logical volumes still fit
    #
    # XXXX should make all this used lvm.getVGFreeSpace() and
    # lvm.getVGUsedSpace() at some point
    #
    
    vgused = {}
    for request in requests.requests:
        if request.type == REQUEST_LV:
            size = int(request.getActualSize(requests, diskset))
            if vgused.has_key(request.volumeGroup):
                vgused[request.volumeGroup] = (vgused[request.volumeGroup] +
                                               size)
            else:
                vgused[request.volumeGroup] = size
	    
    for vg in vgused.keys():
        request = requests.getRequestByID(vg)
	log("Used size vs. available for vg %s:  %s %s", request.volumeGroupName, vgused[vg], request.getActualSize(requests, diskset))
        if vgused[vg] > request.getActualSize(requests, diskset):
            raise PartitioningError, _("Adding this partition would not "
                                       "leave enough disk space for already "
                                       "allocated logical volumes in "
                                       "%s." % (request.volumeGroupName))

    if ret == PARTITION_SUCCESS:
        return


# given clearpart specification execute it
# probably want to reset diskset and partition request lists before calling
# this the first time
def doClearPartAction(partitions, diskset):
    type = partitions.autoClearPartType
    cleardrives = partitions.autoClearPartDrives

    if type == CLEARPART_TYPE_LINUX:
        linuxOnly = 1
    elif type == CLEARPART_TYPE_ALL:
        linuxOnly = 0
    elif type == CLEARPART_TYPE_NONE:
        return
    else:
        raise ValueError, "Invalid clear part type in doClearPartAction"
        
    drives = diskset.disks.keys()
    drives.sort()

    for drive in drives:
        # skip drives not in clear drive list
        if cleardrives and len(cleardrives) > 0 and not drive in cleardrives:
            continue
        disk = diskset.disks[drive]
        part = disk.next_partition()
        while part:
            if not part.is_active() or (part.type == parted.PARTITION_EXTENDED):
                part = disk.next_partition(part)
                continue
            if part.fs_type:
                ptype = partedUtils.get_partition_file_system_type(part)
            else:
                ptype = None
            if ((linuxOnly == 0) or (ptype and ptype.isLinuxNativeFS()) or 
                (not ptype and
                 partedUtils.isLinuxNativeByNumtype(part.native_type))):
                old = partitions.getRequestByDeviceName(partedUtils.get_partition_name(part))
                if old.getProtected():
                    part = disk.next_partition(part)
                    continue

                partitions.deleteDependentRequests(old)
                partitions.removeRequest(old)

                drive = partedUtils.get_partition_drive(part)
                delete = partRequests.DeleteSpec(drive, part.geom.start,
                                                 part.geom.end)
                partitions.addDelete(delete)

            # ia64 autopartitioning is strange as /boot/efi is vfat --
            # if linuxonly and have an msdos partition and it has the
            # bootable flag set, do not delete it and make it our
            # /boot/efi as it could contain system utils.
            # doesn't apply on kickstart installs or if no boot flag
            if ((iutil.getArch() == "ia64") and (linuxOnly == 1)
                and (not partitions.isKickstart) and
                part.is_flag_available(parted.PARTITION_BOOT)):
                if part.fs_type and part.fs_type.name == "FAT":
                    if part.get_flag(parted.PARTITION_BOOT):
                        req = partitions.getRequestByDeviceName(partedUtils.get_partition_name(part))
                        req.mountpoint = "/boot/efi"
                        req.format = 0

                        request = None
                        for req in partitions.autoPartitionRequests:
                            if req.mountpoint == "/boot/efi":
                                request = req
                                break
                        if request:
                            partitions.autoPartitionRequests.remove(request)

            part = disk.next_partition(part)

    # set the diskset up
    doPartitioning(diskset, partitions, doRefresh = 1)
    for drive in drives:
        if cleardrives and len(cleardrives) > 0 and not drive in cleardrives:
            continue

        disk = diskset.disks[drive]
        ext = disk.extended_partition
        # if the extended is empty, blow it away
        if ext and len(partedUtils.get_logical_partitions(disk)) == 0:
            delete = partRequests.DeleteSpec(drive, ext.geom.start,
                                             ext.geom.end)
            old = partitions.getRequestByDeviceName(partedUtils.get_partition_name(ext))
            partitions.removeRequest(old)
            partitions.addDelete(delete)
            deletePart(diskset, delete)
            continue
    
def doAutoPartition(dir, diskset, partitions, intf, instClass, dispatch):
    if instClass.name and instClass.name == "kickstart":
        isKickstart = 1
	# XXX hack
	partitions.setProtected(dispatch)
    else:
        isKickstart = 0
        
    if dir == DISPATCH_BACK:
        diskset.refreshDevices()
        partitions.setFromDisk(diskset)
        partitions.setProtected(dispatch)
        return
    
    # if no auto partition info in instclass we bail
    if len(partitions.autoPartitionRequests) < 1:
        #return DISPATCH_NOOP
        # XXX if we noop, then we fail later steps... let's just make it
        # the workstation default.  should instead just never get here
        # if no autopart info
        autorequests = [ ("/", None, 1100, None, 1, 1) ]

        bootreq = getAutopartitionBoot()
        if bootreq:
            autorequests.append(bootreq)

        (minswap, maxswap) = iutil.swapSuggestion()
        autorequests.append((None, "swap", minswap, maxswap, 1, 1))
        partitions.autoPartitionRequests = autoCreatePartitionRequests(autorequests)

    # reset drive and request info to original state
    # XXX only do this if we're dirty
##     id.diskset.refreshDevices()
##     id.partrequests = PartitionRequests(id.diskset)
    doClearPartAction(partitions, diskset)

    # XXX clearpartdrives is overloaded as drives we want to use for linux
    drives = partitions.autoClearPartDrives

    for request in partitions.autoPartitionRequests:
        if request.device:
            # get the preexisting partition they want to use
            req = partitions.getRequestByDeviceName(request.device)
            if not req or not req.type or req.type != REQUEST_PREEXIST:
                intf.messageWindow(_("Requested Partition Does Not Exist"),
                                   _("Unable to locate partition %s to use "
                                     "for %s.\n\n"
                                     "Press 'OK' to reboot your system.")
                                   % (request.device, request.mountpoint),
				   custom_icon='error')
                sys.exit(0)

            # now go through and set things from the request to the
            # preexisting partition's request... ladeda
            if request.mountpoint:
                req.mountpoint = request.mountpoint
            if request.badblocks:
                req.badblocks = request.badblocks
            if request.uniqueID:  # for raid to work
                req.uniqueID = request.uniqueID
            if not request.format:
                req.format = 0
            else:
                req.format = 1
                req.fstype = request.fstype
        else:
            req = copy.copy(request)
            if req.type == REQUEST_NEW and not req.drive:
                req.drive = drives
            partitions.addRequest(req)

    # sanity checks for the auto partitioning requests; mostly only useful
    # for kickstart as our installclass defaults SHOULD be sane
    for req in partitions.requests:
        errors = req.sanityCheckRequest(partitions)
        if errors:
            intf.messageWindow(_("Automatic Partitioning Errors"),
                               _("The following errors occurred with your "
                                 "partitioning:\n\n%s\n\n"
                                 "Press 'OK' to reboot your system.") %
                               (errors,), custom_icon='error')

    try:
        doPartitioning(diskset, partitions, doRefresh = 0)
    except PartitioningWarning, msg:
        if not isKickstart:
            intf.messageWindow(_("Warnings During Automatic Partitioning"),
                           _("Following warnings occurred during automatic "
                           "partitioning:\n\n%s") % (msg.value,),
			       custom_icon='warning')
        else:
            log("WARNING: %s" % (msg.value))
    except PartitioningError, msg:
        # restore drives to original state
        diskset.refreshDevices()
        partitions.setFromDisk(diskset)
        if not isKickstart:
            extra = ""
            dispatch.skipStep("partition", skip = 0)
        else:
            extra = _("\n\nPress 'OK' to reboot your system.")
        intf.messageWindow(_("Error Partitioning"),
               _("Could not allocate requested partitions: \n\n"
                 "%s.%s") % (msg.value, extra), custom_icon='error')
        

        if isKickstart:
            sys.exit(0)

    # now do a full check of the requests
    (errors, warnings) = partitions.sanityCheckAllRequests(diskset)
    if warnings:
        for warning in warnings:
            log("WARNING: %s" % (warning))
    if errors:
        errortxt = string.join(errors, '\n')
        intf.messageWindow(_("Automatic Partitioning Errors"),
                           _("The following errors occurred with your "
                             "partitioning:\n\n%s\n\n"
			     "This can happen if there is not enough "
			     "space on your hard drive(s) for the "
			     "installation. "
			     "You can choose a different automatic "
			     "partitioning option, or click 'Back' "
			     "to select manual partitioning.\n\n"
                             "Press 'OK' to continue.") % (errortxt),
			   custom_icon='error')
	return DISPATCH_BACK

def autoCreatePartitionRequests(autoreq):
    """Return a list of requests created with a shorthand notation.

    Mainly used by installclasses; make a list of tuples of the form
    (mntpt, fstype, minsize, maxsize, grow, format)
    mntpt = None for non-mountable, otherwise is mount point
    fstype = None to use default, otherwise a string
    minsize = smallest size
    maxsize = max size, or None means no max
    grow = 0 or 1, should partition be grown
    format = 0 or 1, whether to format
    """
    
    requests = []
    for (mntpt, fstype, minsize, maxsize, grow, format) in autoreq:
        if fstype:
            ptype = fsset.fileSystemTypeGet(fstype)
        else:
            ptype = fsset.fileSystemTypeGetDefault()
            
        newrequest = partRequests.PartitionSpec(ptype,
                                                mountpoint = mntpt,
                                                size = minsize,
                                                maxSizeMB = maxsize,
                                                grow = grow,
                                                format = format)
        
        requests.append(newrequest)

    return requests

def getAutopartitionBoot():
    """Return the proper shorthand for the boot dir (arch dependent)."""
    if iutil.getArch() == "ia64":
        return ("/boot/efi", "vfat", 100, None, 0, 1)
    else:
        return ("/boot", None, 100, None, 0, 1)

def queryAutoPartitionOK(intf, diskset, partitions):
    type = partitions.autoClearPartType
    drives = partitions.autoClearPartDrives

    if type == CLEARPART_TYPE_LINUX:
        msg = CLEARPART_TYPE_LINUX_WARNING_MSG
    elif type == CLEARPART_TYPE_ALL:
        msg = CLEARPART_TYPE_ALL_WARNING_MSG
    elif type == CLEARPART_TYPE_NONE:
        return 1
    else:
        raise ValueError, "Invalid clear part type in doClearPartAction"

    drvstr = "\n\n"
    if drives == None:
        drives = diskset.disks.keys()

    drives.sort()
    i = 0
    for drive in drives:
        drvstr = drvstr + "%-10s" % ("/dev/"+drive)
#        i = i + 1
#        if i > 3:
#            drvstr = drvstr + "\n    "
#            i = 0

    drvstr = drvstr +"\n"
    
    rc = intf.messageWindow(_("Warning"), _(msg) % drvstr, type="yesno", default="no", custom_icon ="warning")

    return rc


# XXX hack but these are common strings to TUI and GUI
PARTMETHOD_TYPE_DESCR_TEXT = N_("Automatic Partitioning sets partitions "
                               "based on the selected installation type. "
                               "You also "
                               "can customize the partitions once they "
                               "have been created.\n\n"
                               "The manual disk partitioning tool, Disk Druid, "
                               "allows you "
                               "to create partitions in an interactive "
                               "environment. You can set the file system "
                               "types, mount points, partition sizes, and more.\n\n"
                               "The partitioning tool, fdisk, is a text-based "
                               "utility only recommended for advanced users "
			       "who need to perform specialized tasks.")

AUTOPART_DISK_CHOICE_DESCR_TEXT = N_("Before automatic partitioning can be "
                                     "set up by the installation program, you "
                                     "must choose how to use the space on "
                                     "hard drives.")

CLEARPART_TYPE_ALL_DESCR_TEXT = N_("Remove all partitions on this system")
CLEARPART_TYPE_LINUX_DESCR_TEXT = N_("Remove all Linux Partitions on this system")
CLEARPART_TYPE_NONE_DESCR_TEXT = N_("Keep all partitions and use existing free space")

CLEARPART_TYPE_ALL_WARNING_MSG = N_("You have selected to remove "
                                    "all partitions (ALL DATA) on the "
                                    "following drives:%s\nAre you sure you "
                                    "want to do this?")
CLEARPART_TYPE_LINUX_WARNING_MSG = N_("You have selected to "
                                      "remove all Linux partitions "
                                      "(and ALL DATA on them) on the "
                                      "following drives:%s\n"
                                      "Are you sure you want to do this?")