[systemd_units] Rename, remove unused mode logic and cleanup syntax

Signed-off-by: Olivier Mehani <shtrom@ssji.net>

plugins/system/systemd

@@ -1,97 +0,0 @@
-#!/bin/sh
-# -*- sh -*-
-
-: << =cut
-
-=head1 NAME
-
-systemd - Plugin to monitor systemd units state
-
-=head1 APPLICABLE SYSTEMS
-
-Linux systems with systemd installed.
-
-=head1 CONFIGURATION
-
-None needed.
-
-=head1 AUTHOR
-
-Olivier Mehani <shtrom+munin@ssji.net>
-
-=head1 LICENSE
-
-GPLv2
-
-=head1 MAGIC MARKERS
-
- #%# family=auto
- #%# capabilities=autoconf
-
-=cut
-
-states="active \
-	reloading \
-	inactive \
-	failed \
-	activating \
-	deactivating"
-autoconf() {
-	which systemctl >/dev/null && \
-	       systemctl  --state=failed --no-pager --no-legend	>/dev/null 2>&1 && echo yes || echo "no (No systemctl or error running it)"
-}
-
-config () {
-	cat << EOF
-graph_title Systemd units state
-graph_args -l 0
-graph_category system
-graph_scale no
-graph_vlabel units
-EOF
-	for state in $states; do
-		echo "$state.label $state"
-		echo "$state.draw AREASTACK"
-		if [ $state = failed ]; then
-			echo "$state.warning 0"
-			echo "$state.critical 10"
-		fi
-	done
-}
-
-fetch () {
-	case $1 in
-		"units")
-			tmp=`mktemp -t munin-systemd.XXXXXX`
-			systemctl --no-pager --no-legend --all | awk '{print $1, $3}' > $tmp
-			for state in \
-				$states ; do
-				echo -n "$state.value "
-				grep $state$ $tmp | wc -l
-				extinfo=`grep $state$ $tmp | cut -d " " -f 1`
-				if [ "$extinfo" ]; then
-					echo "$state.extinfo" $extinfo
-				fi
-			done
-			rm $tmp
-			;;
-		"*")
-			echo "$0: unknown mode '$1'" >&2
-			exit 1
-	esac
-}
-
-# mode=`echo $0 | sed 's/.*_//'`
-mode=units
-
-case $1 in
-	"autoconf")
-		autoconf
-		;;
-	"config")
-		config $mode
-		;;
-	*)
-		fetch $mode
-		;;
-esac