#!/bin/bash
set -e -o pipefail
errhandler() {
    echo >&2
    echo "Uninstallation encountered error on line $1.  Aborting.  Please contact Groundwork Support for assistance." >&2
    echo >&2
}
trap 'errhandler $LINENO' ERR
GWVER="7.1.1"
PATCH="TB$GWVER-2"
GWDIR="/usr/local/groundwork"
OUTDIR="$GWDIR/common/var/patches"
LOGFILE="$OUTDIR/$PATCH.log"
OUTFILE="$OUTDIR/$PATCH.installed"
echo "===== Groundwork Patch $PATCH uninstaller ====="
echo
echo "This patch will allow you to have Groundwork use a"
echo "custom installed JDK7 instead of the included Oracle JDK7."
echo
echo "Please note that this script will stop/start Groundwork which"
echo "will result in a few minutes of downtime.  This script will also"
echo "modify various portions of your Groundwork installation."
echo
echo -n "Ok to proceed? [y/N] "
read -r proceed
echo
case "$proceed" in
    [yY][eE][sS]|[yY])
        ;;
    *)
        echo "Installation aborted"
        exit 0
        ;;
esac
if [[ $EUID -ne 0 ]]; then
    echo "ERROR: This script must be run as root" >&2
    exit 1
fi
if [ ! -f $OUTFILE ]; then
    echo "ERROR: Patch not installed.  Please contact Groundwork Support for assistance." >&2
    exit 1
fi
if ! grep -Exq "version= 7.1.0|version= $GWVER" $GWDIR/Info.txt; then
    echo "ERROR: Version 7.1.0 or $GWVER required" >&2
    exit 1
fi
exec &> >(tee -a "$LOGFILE")
echo "PATCH: $PATCH"
echo "USER: $USER"
echo "HOST: `hostname -f`"
echo "UNINSTALL START: `date`"
echo "=================================================="
echo "Stopping gwservices..."
/etc/init.d/groundwork stop gwservices
echo "Restoring original JDK..."
mv $GWDIR/java.original $GWDIR/java
echo "Restoring original $GWDIR/scripts/setenv.sh..."
mv $GWDIR/scripts/setenv.sh.original $GWDIR/scripts/setenv.sh
echo "Restoring original $GWDIR/nagios/libexec/check_jvm.pl..."
mv $GWDIR/nagios/libexec/check_jvm.pl.original $GWDIR/nagios/libexec/check_jvm.pl
echo "Restoring original $GWDIR/foundation/container/rstools/php/bsmCheck/protected/components/ConsoleCommand.php..."
mv $GWDIR/foundation/container/rstools/php/bsmCheck/protected/components/ConsoleCommand.php.original $GWDIR/foundation/container/rstools/php/bsmCheck/protected/components/ConsoleCommand.php
echo "Starting gwservices..."
/etc/init.d/groundwork start gwservices
echo "=================================================="
echo "UNINSTALL COMPLETE: `date`"
rm $OUTFILE