iuser=riak;
igroup="$iuser";
ihome="/opt/$iuser";

# arg 1:  the new package version
post_install() {
	if [ -z "`grep '^$igroup::' /etc/group`" ]; then
		groupadd "$igroup" >& /dev/null
	fi
	if [ -z "`grep '^$iuser:' /etc/passwd`" ]; then
		useradd -d "$ihome" -g "$igroup" -s /bin/sh "$iuser"
	fi

	#chown -R "root:$igroup" "$ihome"
	chown -R "$iuser:$igroup" "$ihome"
	#chmod -R g+rw "$ihome"
	chmod a+x "$ihome"

	ls /opt/riak/etc/*.pacnew &> /dev/null && cat <<EOS
==> WARNING! Riak configuration (or even storage backend) may changed since
==> the last version, you rather check http://basho.com/ for changelog...
EOS
}

# arg 1:  the new package version
# arg 2:  the old package version
post_upgrade() {
	post_install $1
}

# arg 1:  the old package version
pre_remove() {
	/etc/rc.d/riak stop &>/dev/null; sleep 1;
	pkill -u "$iuser"
	pkill -9 -u "$iuser"

	chown -R "root:root" "$ihome"

  userdel "$iuser" &> /dev/null
  groupdel "$igroup" &> /dev/null
}