post_install() {
	if ! getent passwd timidity &>/dev/null; then
		useradd -r -g audio -d /var/lib/timidity -s /bin/nologin timidity >/dev/null
	fi
	if ! groups timidity | grep audio &>/dev/null; then
		gpasswd -a timidity audio >/dev/null
	fi
	timidity_shell=$(getent passwd timidity | cut -d: -f7)
	if [ "$timidity_shell" != '/bin/nologin' ]; then
		chsh -s /bin/nologin timidity &>/dev/null
	fi
	if [[ ! -d /var/lib/timidity ]]; then
		mkdir -p /var/lib/timidity
	fi
	chown -R timidity:audio /var/lib/timidity
}

post_upgrade() {
	post_install
}

post_remove() {
	echo "-- You may want to remove /var/lib/timidity"
	if getent passwd timidity &>/dev/null; then
		userdel timidity >/dev/null
	fi
}