#!/usr/bin/sh
# -*- sh -*-

: << =cut

=head1 NAME

sendmail_mailqueue - Plugin to graph the sendmail queue size

=head1 CONFIGURATION

This plugin uses the following configuration variables

 [sendmail_mailqueue]
  env.mspqueue - MSQ queue directory
  env.mtaqueue - MTA queue directory

=head2 DEFAULT CONFIGURATION

The default configuration is

 [sendmail_mailqueue]
  env.mspqueue /var/spool/mqueue-client
  env.mtaqueue /var/spool/mqueue

=head1 AUTHOR

Unknown author

=head1 LICENSE

GPLv2

=head1 MAGIC MARKERS

 #%# family=auto
 #%# capabilities=autoconf

=cut

MSP_QUEUE=${mspqueue:-/var/spool/mqueue-client}
MTA_QUEUE=${mtaqueue:-/var/spool/mqueue}

if [ "$1" = "autoconf" ]; then
	if [ -d "$MSP_QUEUE" ] && [ -d "$MTA_QUEUE" ] ; then
		echo yes
		exit 0
	else
		echo "no (directories ${MSP_QUEUE} and ${MTA_QUEUE} not found)"
		exit 0
	fi
fi

if [ "$1" = "config" ]; then

	echo 'graph_title Sendmail queued mails'
	echo 'graph_order mails'
	echo 'graph_vlabel mails in queue'
	echo 'graph_category sendmail'
	echo 'mails.label mails'
	exit 0
fi

# Append /. to directory to force following symlinks at the start
# point.
mspmails=$(find "${MSP_QUEUE}/." -type f -name '[qQ]*' 2>/dev/null | grep -vF '.hoststat' | wc -l)
mtamails=$(find "${MTA_QUEUE}/." -type f -name '[qQ]*' 2>/dev/null | grep -vF '.hoststat' | wc -l)
echo "mails.value $((mspmails + mtamails))"