post_install() {
	echo "You must run 'sa-update' to install spam rules before use."
}

post_upgrade() {
	if  [ "$(vercmp $2 3.4)" -lt 0 ]; then
		echo '/var/lib/spamassassin is now owned by the spamd user. spamassassin.service'
		echo 'will also run under that user. You may need to adjust your setup.'
	fi

	# Compile rules, if rules have previously been compiled, and it's possible
	if type re2c &>/dev/null && type sa-compile &>/dev/null && [[ -d /var/lib/spamassassin/compiled ]]; then
		echo "Detected compiled rules, running sa-compile..."
		sa-compile > /dev/null 2>&1
	fi

	true
}