#!/bin/bash
################################################################################
##
##    Copyright 2002 Sistina Software, Inc.
##
##    This is free software released under the GNU General Public License.
##    There is no warranty for this software.  See the file COPYING for
##    details.
##
##    See the file CONTRIBUTORS for a list of contributors.
##
##    This file is maintained by:
##      Heinz Mauelshagen <mauelshagen@sistina.com>
## 
##    File name: libver
##
##    Description: outputs the library version of lvm in the src directory
##                 specified to stdout
##
################################################################################

# help message
usage()
{
  echo "usage: $0 [OPTIONS]";
  echo -e "\t-d\tLVM src directory";
  echo -e "\t-h\tDisplay this help message";
  exit 0;
}

while getopts "d:h" option ;
do
	case $option in
		d) lvm_src=${OPTARG};;
		*) usage; exit;;
	esac
done

if [ -z "${lvm_src}" ]; then
	lvm_src=".";
fi

file1="${lvm_src}/tools/lib/liblvm.h";

ver1=`sed -e '/#define[[:space:]]*LVM_LIB_VERSION/!d;s!^.*LVM_LIB_VERSION[[:space:]]*\([^[:space:]]*\).*$!\1!' $file1`

if [ -z "$ver1" ]; then
	echo "Error: $cmd can't determine the library version from $file1" > \
		/dev/stderr;
	exit -1;
fi

echo "$ver1"