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#!/bin/bash
#
# Update SpamAssassin rules and reload daemons that use them.
#

# First, redirect stdout to /dev/null.
exec 1>/dev/null

# Try to update the rules.
sa-update

# Exit code 0: all new updates were installed.
# Exit code 1: we were already up-to-date.
# Exit code 3: some updates were installed, but some weren't.
# Any other exit code indicates failure.
if (( $? == 0 || $? == 3 )); then
    # Compilation spits out its progress onto stderr.
    sa-compile 2>/dev/null

    # Do you run spamd or amavisd? Both daemons need to be reloaded
    # in order to pick up the newly-updated rules.
    if command -v rc-service >/dev/null; then
        # OpenRC is installed. These "status" checks should succeed
        # only when the daemon is running under OpenRC. We redirect
        # stderr to hide the lecture that OpenRC gives you if you
        # try this on a system running systemd.
        rc-service spamd status 2>/dev/null && rc-service spamd reload
        rc-service amavisd status 2>/dev/null && rc-service amavisd reload
    fi

    if command -v systemctl >/dev/null; then
        # The systemctl (systemd) executable is installed, so try to
        # use it to restart spamd and amavisd. These are safe to run
        # if systemd is installed but not in use.  The is-active
	# check is to keep systemctl from outputting warnings if
	# amavisd is not installed (bug #681872).
        systemctl try-restart spamassassin
        systemctl is-active --quiet amavisd \
            && systemctl try-reload-or-restart amavisd
    fi
fi