#! /bin/bash

# Usually a disk_config file has to provide all details in order to set up
# the disk device. If a different filesystem is to be used or the name for
# the volume group changes, then that requires a new class (because the
# name of the disk_config file is tied to a class.

# I don't like that, because it's too strict. If lvm2 binaries are too be
# installed only on hosts that actually use LVM, then either they have to
# be specified for DISKlvm_xfs, DISKlvm_reiserfs, DISKlvm_ext3 or a new
# "superclass" must be introduced. If the name for the volumegroup changes
# then that also requires a new class.

# Instead use a template, fill it with user specified data or apply
# defaults if nothing else is given. Want a change? Define a variable.
# Don't care? Don't want to consider? Do nothing.


# create a working directory
tmpdir=$(mktemp -d)

## first step - fetch appropriate values from /tmp/fai/IDENTITY or use defaults
## 
ROOTFS="ext2"
ROOTFSOPTS="-b 2048"
VGNAME="vg_system"
LVFS="reiserfs"
LVFSOPTS="-q"
if [ -r /tmp/fai/IDENTITY ] ; then
	source /tmp/fai/IDENTITY
fi

if [[ $verbose = 1 ]] ; then
	echo "Make sure filesystem and filesystem options match up."
	echo "  root:	$ROOTFS / ${ROOTFSOPTS}"
	echo "  root:	$LVFS / ${LVFSOPTS}"
fi


## second step - transform disk layout template into valid config file
##               read defaults from file
##
LAYOUTFILE=$(basename $0|cut -d"." -f2)		# e.g. DISKlvm

# first cat is unnecessary, I use it anyway to make the code more readable
cat ${FAI}/disk_config/${LAYOUTFILE}		|\
	grep -v "^ROOTFS"			|\
	grep -v "^VGNAME"			|\
	grep -v "^LVFS"				|\
	sed -e "s/#ROOTFS#/${ROOTFS}/g"		|\
	sed -e "s/#ROOTFSOPTS#/${ROOTFSOPTS}/g"	|\
	sed -e "s/#VGNAME#/${VGNAME}/g"		|\
	sed -e "s/#LVFS#/${LVFS}/g"		|\
	sed -e "s/#LVFSOPTS#/${LVFSOPTS}/g"	> ${tmpdir}/${LAYOUTFILE}


## third step - partition the disc
#

# Normally setup-storage selects an appropriate configuration from
# $FAI/disk_config/ by picking comparing classes and available files.
# If however -f is given the configuration in filename is used.

# this code is copied from <NFSROOT>/usr/lib/fai/subroutines-linux
# the only modification is the addition of "-f ${tmpdir}/${LAYOUTFILE}"
if [ X$USE_SETUP_STORAGE = X1 ]; then
	echo "Partitioning local harddisks using setup-storage"
	[ ! -s $LOGDIR/disk_var.sh ] && setup-storage -f ${tmpdir}/${LAYOUTFILE} -X 2>&1 | tee $LOGDIR/format.log 
else
	echo "Partitioning local harddisks using setup_harddisks"
	[ ! -s $LOGDIR/disk_var.sh ] && setup_harddisks -f ${tmpdir}/${LAYOUTFILE} -d -X 2>&1 | tee $LOGDIR/format.log
fi

# partitioning tool must create $LOGDIR/disk_var.sh file
if [ ! -s $LOGDIR/disk_var.sh ]; then
	task_error 710
	cat $LOGDIR/format.log
	sendmon "TASKERROR partition 21"
	die "Partitioning tool did not create $LOGDIR/disk_var.sh file."
fi
# now define variable for root and boot partition and boot device
. $LOGDIR/disk_var.sh


# clean up
rm -rf ${tmpdir}

# now skip the original code
skiptask task_partition