#!/bin/sh

#
# Edit the following setting of MOUNTPT to be wherever you have
# mounted the SCO Skunkware 2000 CD-ROM. By default, i have set it
# to /mnt. If you mounted the SCO Skunkware 2000 CD-ROM on /usr/skunk2000,
# then you would set MOUNTPT=/usr/skunk2000
#

MOUNTPT=/mnt

#
# ------------------------------------------------------------------
#
# In order to easily access many of the installed SCO Skunkware 2000
# components, you may wish to add /usr/local/bin to your PATH and
# /usr/local/man to your MANPATH. For instance, a Bourne shell user
# could add the following to their $HOME/.profile :
# 
#     PATH=$PATH:/usr/local/bin
#     MANPATH=$MANPATH:/usr/local/man
#     export PATH MANPATH
# 
# The system administrator can set these on a system-wide basis by
# modifying the files /etc/default/login and /etc/default/man.
#
# ------------------------------------------------------------------
#
# The list of packages upon which other packages depend.
# These must be removed last for non-interactive removal.

DEPENDS="Glib Pixmaps TK Diffutils Tags Slang FSUpthreads qt"

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 SCO OpenServer 5 or UnixWare 7. If that is not the case,"
echo "then run this script again and specify your operating system as one"
echo "of the two supported."
exit 2
}

OpenServer() {
echo "\nWould you like to remove all of the SCO Skunkware 2000 custom"
echo "installed software from your hard disk at this time ? <Y/N> \c"

getyn

while [ ! -f $MOUNTPT/.id_sw_2000 ]
do
    echo "\nIt appears you have the SCO Skunkware 2000 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

if [ "$ans" = "Y" ] 
then
    for b in $MOUNTPT/opt/K/SKUNK2000/*
    do
        CONT=
        p=`basename $b`
        for c in $DEPENDS
        do
            [ "$c" = "$p" ] && {
                CONT=1
                break
            }
        done
        [ "$CONT" ] && continue
        custom -p SKUNK2000:default:$p -r 2>&1 > /dev/null
    done
    for b in $DEPENDS
    do
        [ -d $MOUNTPT/opt/K/SKUNK2000/$b ] && {
           custom -p SKUNK2000:default:$b -r 2>&1 > /dev/null
        }
    done
    echo "Removal of SCO Skunkware 2000 packages complete."
else
    for b in $MOUNTPT/opt/K/SKUNK2000/*
    do
        p=`basename $b`
        echo "Would you like to remove $p ? <Y/N> \c"
        getyn
        [ "$ans" = "Y" ] && {
        custom -p SKUNK2000:default:$p -r 2>&1 > /dev/null
        }
    done
    echo "Removal of SCO Skunkware 2000 packages complete."
fi
}

UnixWare() {
echo "\nWould you like to remove all of the SCO Skunkware pkgadd"
echo "installed software from your hard disk at this time ? <Y/N> \c"

getyn

while [ ! -f $MOUNTPT/.id_sw_2000 ]
do
    echo "\nIt appears you have the SCO Skunkware 2000 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

if [ "$ans" = "Y" ] 
then
    for p in $MOUNTPT/uw2/Packages/*.pkg
    do
		btmp=`basename $p`
        b=`echo $btmp | sed -e "s/\.pkg//"`
        pkginfo -q $b && pkgrm -a $MOUNTPT/remove.admin -n $b
    done
    echo "Removal of SCO Skunkware 2000 packages complete."
else
    for p in $MOUNTPT/uw2/Packages/*.pkg
    do
		btmp=`basename $p`
        b=`echo $btmp | sed -e "s/\.pkg//"`
		[ "$VGR" ] && {
        Skipit $b && continue
		    [ -d $MOUNTPT/$b ] && continue
		}
        echo "Would you like to remove $b ? <Y/N> \c"
        getyn
        [ "$ans" = "Y" ] && {
        pkginfo -q $b && pkgrm -a $MOUNTPT/remove.admin -n $b
        }
    done
fi
}

Voyager() {
echo "\nWould you like to remove all of the SCO Skunkware 2000 pkgadd"
echo "installed software from your hard disk at this time ? <Y/N> \c"

getyn

while [ ! -f $MOUNTPT/.id_sw_2000 ]
do
    echo "\nIt appears you have the SCO Skunkware 2000 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

if [ "$ans" = "Y" ] 
then
    for b in $MOUNTPT/*
    do
    [ -f $b/pkginfo ] && {
        p=`basename $b`
        pkginfo -q $p && pkgrm -a $MOUNTPT/remove.admin -n $p
    }
    done
    echo "Removal of SCO Skunkware 2000 packages complete."
else
    for b in $MOUNTPT/*
    do
    [ -f $b/pkginfo ] && {
        echo "Would you like to remove $b ? <Y/N> \c"
        getyn
        [ "$ans" = "Y" ] && {
        p=`basename $b`
        pkginfo -q $p && pkgrm -a $MOUNTPT/remove.admin -n $p
        }
    }
    done
    echo "Removal of SCO Skunkware 2000 packages complete."
fi
}

QueryOS() {
    if [ -d /usr/sbin ]
    then
		VER=`uname -v`
		OSNAME=UnixWare
		case $VER in
		7*) GUESS=Voyager ;;
		*) 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
        $GUESS
    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) Voyager ;;
		2) UnixWare ;;
		3) OpenServer ;;
		4) Sorry ;;
		esac
    fi
}

[ -f $MOUNTPT/.id_sw_2000 ] || MOUNTPT=`dirname $0`
[ "$MOUNTPT" = "." ] && MOUNTPT=`pwd`
case `uname` in
SCO_SV) OpenServer ;;
UNIX_SV) UnixWare ;;
UnixWare) Voyager ;;
*) QueryOS ;;
esac