freebsd-ports/mail/p5-Mail-SpamAssassin/pkg-install

#!/bin/sh

if [ "$2" != "PRE-INSTALL" ]; then
    exit 0
fi

USER=spamd
GROUP=${USER}
UID=58
GID=${UID}
HOME=/var/spool/${USER}

if ! pw groupshow "${GROUP}" 2>/dev/null 1>&2; then
	if pw groupadd ${GROUP} -g ${GID}; then
		echo "Added group \"${GROUP}\"."
	else
		echo "Adding group \"${GROUP}\" failed..."
		exit 1
	fi
fi

if ! pw usershow "${USER}" 2>/dev/null 1>&2; then
	if pw useradd ${USER} -u ${UID} -g ${GROUP} -h - \
		-s "/sbin/nologin" -d "${HOME}" \
		-c "SpamAssassin user"; \
	then
		echo "Added user \"${USER}\"."
		mkdir ${HOME} && chown ${USER}:${GROUP} ${HOME}
	else
		echo "Adding user \"${USER}\" failed..."
		exit 1
	fi
fi

# Create pid directory
mkdir /var/run/spamd 2> /dev/null && chown ${USER}:${GROUP} /var/run/spamd

exit 0