#!/bin/bash
# copyright (C) 2014 FUJITSU LIMITED 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; version 2
# of the License.
# 
# 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  
# 02110-1301, USA.

# check distro
DISTRO=`/usr/lib64/lxcf/lxcf-distro`

# check root
if [ ${EUID:-${UID}} != 0 ]; then
    echo "error: Because you are not root, you cannot execute this command. "
    exit 1
fi

# check options
FLG_F=0

while getopts f OPT
do
  case $OPT in
    "f" ) FLG_F=1 ;;
  esac
done

shift `expr $OPTIND - 1`

# check args
if [ $# -lt 1 ]; then
	echo "usage : lxcf snapshot erase SNAPSHOT_IMAGE ..."
	exit 1
fi

lsdir() {
  ls -f --ind=none $1 | sed '/^\.\{1,2\}$/d'
}


# When uuid is specified, the container name is returned. 
uuid2name() {
  NAME=$1
  if [ -d /opt/lxcf/${NAME} ]; then
    echo -n $NAME
    return
  fi
  for i in `lsdir /etc/lxcf/rsc`
  do
     if [ x$NAME == x`cat /etc/lxcf/rsc/${i}/uuid` ]; then
       echo -n $i
       return
     fi
  done
  echo -n $NAME
}

for i in $* 
do
  INAME=`basename $i`
  if [ x$i != x$INAME ]; then
    echo "error: $i is a invalid path"
    exit -1
  fi
  if [ ! -f /opt/lxcf_rep/$INAME ]; then
    echo "error: $i image is not exist"
    exit -1
  fi
done

for i in $* 
do
  if [ -f /opt/lxcf_rep/$i ]; then
    if [ $FLG_F -eq 1 ]; then
      /bin/rm -f /opt/lxcf_rep/$i
    else
      /bin/rm -i /opt/lxcf_rep/$i
    fi
    echo "erased : $i"
  fi
done

exit 0

