#!/bin/sh
#
#	$FreeBSD$
#
# Created by: hetzels@westbend.net

#set -vx

PKG_BATCH=${BATCH:=NO}

PKG_PREFIX=${PKG_PREFIX:=/usr/local}

checkfile() {
	diff -bBqw $1 $1.dist >/dev/null 2>&1
	case $? in
		0)	# config file exists, but is the same
			rm $1
			;;
		1)	# config file exists and differs
			;;
		*)	# no config file exists
			;;
	esac
}

# Uninstall timseived's Cyrus.conf file.

cyrus_conf() {
	if [ -f ${PKG_PREFIX}/lib/sasl/Cyrus.conf ]; then
		echo "pwcheck_method: pwcheck" > ${PKG_PREFIX}/lib/sasl/Cyrus.conf.tmp
		if cmp -s ${PKG_PREFIX}/lib/sasl/Cyrus.conf ${PKG_PREFIX}/lib/sasl/Cyrus.conf.tmp; then
			rm -f ${PKG_PREFIX}/lib/sasl/Cyrus.conf
		fi
		rm -f ${PKG_PREFIX}/lib/sasl/Cyrus.conf.tmp
	fi
}

#
# Modify the 'cyrus' user created from the cyrus-sasl port
#

modify_cyrus_user() {
	USER=cyrus
	PW=/usr/sbin/pw
	if [ -x /usr/sbin/nologin ]; then
		shell=/usr/sbin/nologin
	elif [ -x /sbin/nologin ]; then
		shell=/sbin/nologin
	else
		shell=/nonexistent
	fi
	uhome=/nonexistent

	if ! ${PW} mod user ${USER} -d "${uhome}" -s "${shell}"; then
		echo "*** Failed to update user \`${USER}'."
	else
		echo "*** Updated user \`${USER}'."
	fi
}

case $2 in
	DEINSTALL)
		cd ${PKG_PREFIX}
		cyrus_conf
		checkfile ${PKG_PREIFX}/etc/imapd.conf
		checkfile ${PKG_PREIFX}/etc/cyrus.conf
		;;
	POST-DEINSTALL)
		modify_cyrus_user
		;;

esac