#!/bin/sh
###############################################################################
# The preremove script cleans up any leftover links and files after removal
###############################################################################
# Copyright (c) 2022 Veritas Technologies LLC. All rights reserved
###############################################################################

INSTALL_PATH="/usr/openv/pdde"
LOGDIR="/var/log/puredisk"
OSTPLUGINS_PATH="/usr/openv/lib/ost-plugins"
PKG_NAME="VRTSpddea"
TIMESTAMP=`date +%F_%H:%M`

# The rpm package manager on Linux has a limitation where if a postinstall
# scriptlet fails, rpm still indicates the package is successfully installed.
# To get around this there is a touch file to record postinstall scriptlet
# failures. If the previous_rpm_pkg_install_failed touch file exists and
# contains this package's name, remove the touch file since we are now removing
# the package that had the postinstall failure and created the touch file.
#
remove_previous_rpm_pkg_install_failed_file ()
{
	if [ -f /tmp/previous_rpm_pkg_install_failed ] ; then
		failed_pkg_name=`sed -n '1p' /tmp/previous_rpm_pkg_install_failed`
		if [ "${failed_pkg_name}" = "${PKG_NAME}" ] ; then
			rm -f /tmp/previous_rpm_pkg_install_failed
		fi
	fi
}

#------------------------------------MAIN--------------------------------------------------------
if [ ! -d "${LOGDIR}" ] ; then
    mkdir -p ${LOGDIR}
fi
LOGFILE=${LOGDIR}/${TIMESTAMP}-pdde-preremove.log

echo | tee -a ${LOGFILE}
echo "Starting VRTSpddea preremove script." | tee -a ${LOGFILE}
echo| tee -a ${LOGFILE}
if [ -f /tmp/PDDE_SKIP_PACKAGE_SCRIPTS ] ; then
    echo "Skipping..."| tee -a ${LOGFILE}
else

# Remove group and world writable permissions
umask 0022

remove_previous_rpm_pkg_install_failed_file

# Determine the platforms
os=`uname -s`
case "${os}" in
    Linux*) 
        PLATFORM="RedHat"
        if [ -f /etc/SuSE-release -o -f /sbin/SuSEconfig ]; then 
            PLATFORM="SuSE"
        elif [ -f /etc/os-release ] ; then
            # Both Red Hat 7 and SUSE 12 have an os-release file.
            grep -i SUSE /etc/os-release > /dev/null 2>&1
            if [ $? = 0 ] ; then
                PLATFORM="SuSE"
            fi
        elif [ -f /etc/debian_version ]; then 
            PLATFORM="Debian"
        fi      
    ;;      
    SunOS)  PLATFORM="Solaris"  ;;
    AIX)    PLATFORM="AIX"      ;;      
    HP-UX)  PLATFORM="HPUX"     ;;
esac

fi 
echo | tee -a ${LOGFILE}
echo "VRTSpddea preremove script done!" | tee -a ${LOGFILE}
echo | tee -a ${LOGFILE}