freebsd-ports/mail/dovecot/pkg-deinstall

#! /bin/sh
#
# ex:ts=4

ask() {
	local question default answer

	question=$1
	default=$2
	if [ -z "${PACKAGE_BUILDING}" -a -z "${BATCH}" ]; then
		read -p "${question} [${default}]? " answer
	fi
	echo ${answer:-${default}}
}

yesno() {
	local question default answer

	question=$1
	default=$2
	while :; do
		answer=$(ask "${question}" "${default}")
		case "${answer}" in
		[Yy]*)	return 0;;
		[Nn]*)	return 1;;
		esac
		echo "Please answer yes or no."
	done
}

delete_account() {
	local port user uid group gid

	port=$1
	user=${2%:*}
	uid=${2#*:}
	group=${3%:*}
	gid=${3#*:}

	echo "If you do not intend to reinstall ${port}, you should manually remove the user '${user}' (uid='${uid}') and the group '${group}' (gid='${gid}')."
}

case $2 in

DEINSTALL)
	if ps -axc | grep -qw dovecot; then
		if yesno "Dovecot is still running. Shall I stop it?" y; then
			killall dovecot
			sleep 2
		else
			echo "OK ... I hope you know what you are doing."
		fi
	fi

	delete_account Dovecot dovecot:${DOVECOT_UID:-143} dovecot:${DOVECOT_GID:-143}

	base=/var/run/dovecot
	DIRLIST="${base}/login ${base}"
	echo "Cleaning up \"${base}\"."
	for directory in ${DIRLIST}; do
		rmdir ${directory} 2>/dev/null || :
	done
	;;

esac