#!/bin/sh
#-------------------------------------------------------------------------
#
# dropuser--
#    Utility for removing a user from the PostgreSQL database.
#
# Copyright (c) 1994, Regents of the University of California
#
#
# IDENTIFICATION
#    $Header: /cvsroot/pgsql/src/bin/scripts/Attic/dropuser,v 1.4 1999/12/16 20:10:02 momjian Exp $
#
# Note - this should NOT be setuid.
#
#-------------------------------------------------------------------------

CMDNAME=`basename $0`
PSQLOPT=
forcedel=t
DelUser=

# Check for echo -n vs echo \c

if echo '\c' | grep -s c >/dev/null 2>&1
then
    ECHO_N="echo -n"
    ECHO_C=""
else
    ECHO_N="echo"
    ECHO_C='\c'
fi


while [ $# -gt 0 ]
do
    case "$1" in
	--help|-\?)
		usage=t
		;;
# options passed on to psql
	--host|-h)
		PSQLOPT="$PSQLOPT -h $2"
		shift;;
        -h*)
                PSQLOPT="$PSQLOPT $1"
                ;;
        --host=*)
                PSQLOPT="$PSQLOPT -h "`echo $1 | sed 's/^--host=//'`
                ;;
	--port|-p)
		PSQLOPT="$PSQLOPT -p $2"
		shift;;
        -p*)
                PSQLOPT="$PSQLOPT $1"
                ;;
        --port=*)
                PSQLOPT="$PSQLOPT -p "`echo $1 | sed 's/^--port=//'`
                ;;
# Note: These two specify the user to connect as (like in psql),
#       not the user you're dropping.
	--user|--username|-U)
		PSQLOPT="$PSQLOPT -U '$2'"
		shift;;
        -U*)
                PSQLOPT="$PSQLOPT $1"
                ;;
        --user=*)
                PSQLOPT="$PSQLOPT -U "`echo $1 | sed 's/^--user=//'`
                ;;
        --username=*)
                PSQLOPT="$PSQLOPT -U "`echo $1 | sed 's/^--username=//'`
                ;;
	--password|-W)
		PSQLOPT="$PSQLOPT -W"
		;;
	--echo|-e)
		PSQLOPT="$PSQLOPT -e"
		;;
	--quiet|-q)
		PSQLOPT="$PSQLOPT -o /dev/null"
		;;
# other options
	--interactive|-i)
		forcedel=f
		;;
	-*)
		echo "$CMDNAME: Unrecognized option: $1. Try -? for help."
		exit 1
		;;
         *)
		DelUser="$1"
		;;
    esac
    shift;
done


if [ "$usage" ]; then
	echo ""
	echo "Usage: $CMDNAME [options] [username]"
	echo ""
	echo "    -h HOSTNAME, --host=HOSTNAME     "
	echo "    -p PORT,     --port=PORT         "
	echo "    -u USERNAME, --username=USERNAME (for connect to db)"
	echo "    -W,          --password          "
	echo "    -e,          --echo              "
        echo "    -q,          --quiet             "
	echo "    -i,          --interactive       "   
	echo "    -?,          --help              "
	echo ""
	exit 1
fi

# Prompt for username if missing

if [ -z "$DelUser" ]; then
	$ECHO_N "Enter name of user to delete: "$ECHO_C
	read DelUser
	[ $? -ne 0 ] && exit 1
fi


if [ "$forcedel" = f ]; then
	echo "User \"$DelUser\" and any owned databases will be permanently deleted."
	$ECHO_N "Are you sure? (y/n) "$ECHO_C
	read REPLY

	[ $? -eq 1 ] && exit 1
	[ "$REPLY" != "y" -a "$REPLY" != "Y" ] && exit 0
fi


DelUser=`echo $DelUser | sed 's/\"/\\\"/g'`

psql $PSQLOPT -d template1 -c "DROP USER \"$DelUser\""

if [ $? -ne 0 ]; then
	echo "$CMDNAME: Deletion of user \"$DelUser\" failed."
	exit 1
fi

exit 0
