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#!/bin/bash

# Copyright (C) 2017 AT&T Intellectual Property. All rights reserved. 
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this code except in compliance
# with the License. You may obtain a copy of the License
# at http://www.apache.org/licenses/LICENSE-2.0
# 
# Unless required by applicable law or agreed to in writing, software  
# distributed under the License is distributed on an "AS IS" BASIS,  
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or  
# implied. See the License for the specific language governing  
# permissions and limitations under the License. 


die()
{
    exec 1>&2
    echo "$@"
    exit 1
}

usage()
{
    exec 1>&2
    [ $# -gt 0 ] && echo "$@"
    echo "Usage: $0 -n name -v value [-x]"
    echo " -n\tname to configure"
    echo " -v\tvalue to set"
    echo " -x\tencrypt the value"
    exit 1
}

NAME=
VAL=
ENCRYPT=false
FILE=/opt/app/pgaas/lib/pgaas.cfg

while getopts f:n:v:x c
do
    case "$c" in
	f ) FILE=$OPTARG ;;
	n ) NAME=$OPTARG ;;
	v ) VAL=$OPTARG ;;
	x ) ENCRYPT=true ;;
	\?) usage ;;
    esac
done
shift $(($OPTIND - 1))

[ -n "$NAME" ] || die "-n name is required"
[ -n "$VAL" ] || die "-v value is required"
[ -f "$FILE" -a -w "$FILE" ] || die "-f file must exist and be writable"

ed $FILE <<-!
	H
	g/^$NAME[=]/d
	g/^$NAME[.]x=/d
	w
	q
!

if $ENCRYPT
then /opt/app/cdf/bin/getpropvalue -e AES -n $NAME -v $VAL >> $FILE
else echo "$NAME='$VAL'" >> $FILE
fi