#!/bin/bash

#query mage database for installed packages
# $Header: /home/cvsd/magellan-cvs/magellan-src/mage/usr/lib/mage/magequery.sh,v 1.7 2005-06-01 15:48:31 niro Exp $

print_usage()
{
	echo "$(basename $0 .sh) querys the mage database for installed packages."
	echo
	echo "    -n NAME   searches for name NAME"
	echo "    -v VER    searches for version VER, needs -n"
	echo "    -b BUILD  searches for build number BUILD, needs -n -v"
	echo
	echo " Examples:"
	echo
	echo "    $(basename $0 .sh) -n xorg -v 6.8.0 -b r1"
	echo "          searches for package xorg-6.8.0-r1"
	echo
}

while getopts "n:v:b:h-" opt ; do
	case "${opt}" in
		n)
			S_PNAME="${OPTARG}"
			;;

		v)
			S_PVER="${OPTARG}"
			;;

		b)
			S_PBUILD="${OPTARG}"
			;;
		h)
			print_usage
			exit 0
			;;

		-) break
			;;

		*)
			print_usage
			exit 1
			;;
	esac
done
shift $(($OPTIND - 1))


source /etc/mage.rc
RETVAL=1

for i in ${INSTALLDB}/*/*
do
	INST_PNAME=no
	INST_PVER=no
	INST_PBUILD=no

	x=$(basename ${i})
	PNAME=${x%-*-*}
	PVER=$(echo ${x#${PNAME}-}| cut -d- -f1)
	PBUILD=$(echo ${x#${PNAME}-}| cut -d- -f2)

	if [[ ${PNAME} == ${S_PNAME} ]]
	then
		INST_PNAME=yes

		if [ -n "${S_PVER}" ]
		then
			if [[ ${PVER} == ${S_PVER} ]]
			then
				INST_PVER=yes
			fi
			
			if [ -n "${S_PBUILD}" ]
			then
				if [[ ${PBUILD} == ${S_PBUILD} ]]
				then
					INST_PBUILD=yes
				fi
			fi
		fi

		# search for pname only
		if [ -n "${S_PNAME}" -a -z "${S_PVER}" -a -z "${S_PBUILD}" ]
		then
			if [ "${INST_PNAME}" = yes ]
			then
				echo "${S_PNAME} is installed [ ${PNAME}-${PVER}-${PBUILD} ]"
				RETVAL=0
				break
			fi
		fi

		# search for pname and pver
		if [ -n "${S_PNAME}" -a -n "${S_PVER}" -a -z "${S_PBUILD}" ]
		then
			if [ "${INST_PNAME}" = "yes" -a "${INST_PVER}" = "yes" ]
			then
				echo "${S_PNAME}-${S_PVER} is installed [ ${PNAME}-${PVER}-${PBUILD} ]"
				RETVAL=0
				break
			fi
		fi

		# search for pname, pver and pbuild
		if [ -n "${S_PNAME}" -a -n "${S_PVER}" -a -n "${S_PBUILD}" ]
		then
			if [ "${INST_PNAME}" = "yes" -a "${INST_PVER}" = "yes"  -a "${INST_PBUILD}" = "yes" ]
			then
				echo "${S_PNAME}-${S_PVER}-${S_PBUILD} is installed [ ${PNAME}-${PVER}-${PBUILD} ]"
				RETVAL=0
				break
			fi
		fi
	fi
done

exit ${RETVAL}