#
# $Id$ 
#
# postinstall script to handle package upgrade
#
# Taken from http://dlc.sun.com/pdf/817-0406/817-0406.pdf 'Upgrading' section
PATH=/usr/sadm/bin:$PATH
UPGR_SCRIPT=/tmp/upgr.$PKGINST

UPGRADE_MSG="Do you want to upgrade the installed version ?"
UPGRADE_HLP="If upgrade is desired, the existing version of the \
package will be replaced by this version. If it is not \
desired, no further actions will be taken."
UPGRADE_NOTICE="Conflict approval questions may be displayed. The \
listed files are the ones that will be upgraded. Please \
answer \"y\" to these questions if they are presented."

pkginfo -q $PKG.\*

if [ $? -eq 0 ]; then
    # check to see if its the same version as we are installing
    # if so, do not set up removal script
    pkginfo -v $VERSION -q $PKGINST
    if [ $? -eq 0 ]; then
	exit 0
    fi

    # See if upgrade is desired here
    response=`ckyorn -p "$UPGRADE_MSG" -h "$UPGRADE_HLP"`

    if [ $response = "y" ]; then
        oldpkg=`pkginfo -x ${PKG}.\* | nawk "/$PKG/ {print \\$1}" | head -1`
        echo "PATH=/usr/sadm/bin:$PATH" > $UPGR_SCRIPT
        echo "sleep 3" >> $UPGR_SCRIPT
        echo "echo Now removing old instance of $PKG" >> $UPGR_SCRIPT
        echo "echo '======================================================='" >> $UPGR_SCRIPT
        echo "echo '  If this step fails, please remove $oldpkg by hand'" >> $UPGR_SCRIPT
        echo "echo '======================================================='" >> $UPGR_SCRIPT


        if [ ${PKG_INSTALL_ROOT} ]; then
              echo "pkgrm -n -R $PKG_INSTALL_ROOT $oldpkg" >> $UPGR_SCRIPT
        else
              echo "su - root -c 'pkgrm -n $oldpkg'" >> $UPGR_SCRIPT
        fi

        echo "rm $UPGR_SCRIPT" >> $UPGR_SCRIPT
        echo "exit $?" >> $UPGR_SCRIPT

        puttext -l 5 "$UPGRADE_NOTICE"

    else
        if [ -f $UPGR_SCRIPT ]; then
              rm -r $UPGR_SCRIPT
        fi
        echo "Performing no further actions"
        exit 1
    fi
fi

exit 0