#!/bin/sh -e
# Copyright (C) @BABOLO  2003 Jan 15
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $Id: babololib-version,v 1.2 2004/02/01 05:28:32 babolo Exp $
basename=basename
cat=cat
ex=""
baboloinclude="`dirname ${0}`"
baboloinclude="`dirname ${baboloinclude}`/include/babolo"
case "${1}" in
/*)
    # V0.01
    if  [ $# -ne 2 ]; then
        echo "Usage:"
        echo "`basename ${0}` /full/path/to/versin.VERSION V.M"
        echo "`basename ${0}` pkg-name:V.M ..."
        exit 1
    fi
    path="${1}"
    rvers="${2}"
    pkg=`${basename} "${path}"`
    rmajor="${rvers%%.*}"
    rminor="${rvers#*.}"
    evers="`${cat} \"${path}\"`"
    emajor="${evers%%.*}"
    eminor="${evers#*.}"

    if  [ "${emajor}" -lt "${rmajor}" ]; then
        echo "${pkg}-${rmajor}.${rminor} or higher required."
        ex=1
    elif [ "${eminor}" -lt "${rminor}" ]; then
        echo "${pkg}-${rmajor}.${rminor} or higher required."
        ex=1
    fi
    ;;
*)
    exit=""
    for i in "$@"; do
        pkg="${i%:*}"
        path="${baboloinclude}/${pkg}.VERSION"
        rvers="${i##*:}"
        rmajor="${rvers%%.*}"
        rminor="${rvers#*.}"
        evers="`${cat} \"${path}\"`"
        emajor="${evers%%.*}"
        eminor="${evers#*.}"

        if  [ "${emajor}" -lt "${rmajor}" ]; then
            echo "${pkg}-${rmajor}.${rminor} or higher required."
            ex=1
        elif  [ "${emajor}" -eq "${rmajor}" -a "${eminor}" -lt "${rminor}" ]; then
            echo "${pkg}-${rmajor}.${rminor} or higher required."
            ex=1
        fi
    done
    ;;
esac
if  [ -n "${ex}" ]; then
    exit "${ex}"
fi
