#!/bin/sh
#
# UNLOAD - This script is a front-end to pkgtrans and can be used to
#          transfer the Skunkware 7 filesystem format packages to data-stream
#          package files on your hard disk. This is potentially useful to
#          those folks that might want to redistribute these packages via
#          ftp/http and would prefer data-stream format files.
#

#
# Edit the following setting of MOUNTPT to be wherever you have
# mounted the SCO Skunkware 7 CD-ROM. By default, i have set it
# to /mnt. If you mounted the SCO Skunkware 7 CD-ROM on /usr/skunk7,
# then you would set MOUNTPT=/usr/skunk7
#

MOUNTPT=/mnt

#
# ------------------------------------------------------------------
#

getnum() {
        ans=
        while [ "$ans" = "" ]
        do
                read ans
                [ "$ans" = "1" ] || [ "$ans" = "2" ] || [ "$ans" = "3" ] || [ "$ans" = "4" ] && break
                ans=
                echo "\nPlease answer with 1, 2, 3, or 4 : \c"
        done
}

getyn() {
        ans=
        while [ "$ans" = "" ]
        do
                read ans
                [ "$ans" = "Y" ] || [ "$ans" = "y" ] && {
                        ans=Y
                        break
                }
                [ "$ans" = "n" ] || [ "$ans" = "N" ] && {
                        ans=N
                        break
                }
                ans=
                echo "\nPlease answer with a Y or N \c"
        done
}

Sorry() {
echo "\nI'm sorry, but it appears you are running an operating system"
echo "other than UnixWare 7, UnixWare 2.x, or OpenServer 5. If that is"
echo "not the case, then run this script again and specify your operating"
echo "system as one of the three supported."
exit 2
}

Trans() {
    for i in $MOUNTPT/*
    do
        b=`basename $i`
        [ -f $i/pkginfo ] && {
            pkgtrans -s $MOUNTPT $DEST/$b.pkg $b
        }
    done
}

Unload() {
while [ ! -d $MOUNTPT/uw7 ]
do
        echo "\nIt appears you have the SCO Skunkware 7 CD-ROM mounted"
        echo "somewhere other than $MOUNTPT .\n"
        echo "Please enter the full absolute pathname of the CD-ROM"
        echo "mount point (e.g. /cdrom, /usr/skunk, ...) : \c"
        read MOUNTPT
done

NOTYET=1
while [ "$NOTYET" ]
do
    echo "Please enter the full path to the directory you wish to unload to."
    echo "Enter Path : \c"
    read DEST
    [ -d $DEST ] || {
        echo "$DEST either does not exist or is not a directory."
        continue
    }
    echo "Unloading to $DEST . Is this ok ? <Y/N> \c"
    getyn
    if [ "$ans" = "Y" ] || [ "$ans" = "y" ]
    then
        Trans
        NOTYET=
    else
        echo "Try again."
        continue
    fi
done
echo "Unload of SCO Skunkware 7 packages to $DEST complete."
}

QueryOS() {
        if [ -d /usr/sbin ]
        then
		VER=`uname -v`
		OSNAME=UnixWare
		case $VER in
		7) GUESS=Gemini ;;
		*) GUESS=UnixWare ;;
		esac
        else
		VER=`uname -X | grep Release | awk ' { print $3 } '`
		OSNAME=OpenServer
                GUESS=OpenServer
        fi
        echo "I am uncertain of your operating system type."
        echo "I think it's SCO $OSNAME $VER, is this correct ? <Y/N> \c"
        getyn
        if [ "$ans" = "Y" ]
        then
                Unload
        else
        	echo "Choose one of the following (enter 1, 2, 3, or 4) :"
		echo "\t1. SCO UnixWare 7"
		echo "\t2. SCO UnixWare 2.x"
		echo "\t3. SCO OpenServer 5"
		echo "\t4. Other"
        	getnum
		case $ans in
		1) Unload ;;
		2) Unload ;;
		3) Unload ;;
		4) Sorry ;;
		esac
        fi
}

case `uname` in
SCO_SV) Unload ;;
UNIX_SV) Unload ;;
UnixWare) Unload ;;
*) QueryOS ;;
esac