#!/bin/sh
if [ $# -eq 0 -o $# -gt 2 ] ; then
        echo 'Usage: switch_dvm templatename [command]'
        exit 1
fi
TEMPLATENAME=$1
DVMTMPL="$TEMPLATENAME"-dvm
DVMTMPLDIR="/var/lib/qubes/appvms/$DVMTMPL"
ROOT=/var/lib/qubes/dvmdata/savefile-root
DEFAULT=/var/lib/qubes/dvmdata/default-savefile
CURRENT=/var/run/qubes/current-savefile
SHMDIR=/dev/shm/qubes
SHMCOPY=$SHMDIR/current-savefile
if [ -d $DVMTMPLDIR ] ; then
rm -f $ROOT $DEFAULT $CURRENT
ln -s "$DVMTMPLDIR/dvm-savefile" $DEFAULT
ln -s "/var/lib/qubes/vm-templates/$TEMPLATENAME/root.img" $ROOT
rm -f $SHMCOPY
cp $DEFAULT $SHMCOPY || exit 1
chgrp qubes $SHMCOPY
chmod 660 $SHMCOPY
ln -s $SHMCOPY $CURRENT
rm /var/lib/qubes/dvmdata/vmdir
ln -s  $DVMTMPLDIR /var/lib/qubes/dvmdata/vmdir
else
echo "Creating new dvm"
qvm-create-default-dvm $1
fi
if [ $2 ] ; then
echo $2 | /usr/lib/qubes/qfile-daemon-dvm qubes.VMShell dom0 DEFAULT red
fi