#!/bin/bash

: <<=cut

=head1 NAME

pacman_pending_updates - Plugin to monitor pending updates

=head1 APPLICABLE SYSTEMS

All systems with pacman as their package manager.

=head1 CONFIGURATION

The plugin needs no additional configuration and works out of the box.

It is possible to add warnings for certain numbers of updates pending. The
following will send a warning when there are more than 10 updates pending.

  [pacman_pending_updates]
  env.PENDING_UPDATES_WARNING :10

=head1 INTERPRETATION

This plugin will draw one line: the number of updates pending.

=head1 MAGIC MARKERS

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

=head1 VERSION

  1.0.0

=head1 AUTHOR

Bert Peters <bert@bertptrs.nl>

=head1 LICENSE

GPLv2

=cut

case $1 in
	config)
		cat <<'EOM'
graph_args --base 1000 -l 0
graph_title Pending updates
graph_vlabel updates
graph_category security
updates.label updates
updates.info Current number of pending updates
EOM
		if [[ -n $PENDING_UPDATES_WARNING ]]; then
			echo updates.warning $PENDING_UPDATES_WARNING
		fi
		;;

	autoconf)
		hash checkupdates &> /dev/null && echo yes || echo "no (checkupdates not found)"
		;;

	*)
		echo updates.value $(checkupdates | wc -l)
		;;
esac

exit 0