#!/bin/sh
#
# Plugin to monitor inode-usage.
#
# Parameters understood:
#
# 	config   (required)
# 	autoconf (optional - used by munin-config)
#
# Magic markers (optional - used by munin-config and installation
# scripts):
#
#%# family=auto
#%# capabilities=autoconf

MAXLABEL=20

fs() {
	local escaped_mntpt=`echo "$*" | awk '{ print $NF }' | sed 's|/|\\\\/|g'`
	awk "/^[^ ]* $escaped_mntpt / { print \$3 }" /proc/mounts | grep -v rootfs
}

print_values() {
	df -P -l -i | sed 1d | grep -v "//" | while read i; do
		if [ "`fs $i`" = "reiserfs" ] ; then continue ; fi
		name=`echo $i | sed 's/[\/.]/_/g'| awk '{ print $1 ".value " }'`
		printf "$name "
		echo $i | awk '{ print $5 }' | cut -f1 -d%
	done
}

if [ "$1" = "autoconf" ]; then
	if [ "`print_values`" = "" ] ; then
		echo no
		exit 1
	else
		if [ `uname -s` = SunOS ]; then
			echo no
			exit 1
		else
			echo yes
			exit 0
		fi
	fi
	exit 0
fi

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

	echo 'graph_title Inode usage (in %)'
	echo 'graph_args --upper-limit 100 -l 0'
	echo 'graph_vlabel %'
	df -P -l -i  | sed 1d | grep -v "//" | sort | while read i; do
		if [ "`fs $i`" = "reiserfs" ] ; then continue ; fi
		name=`echo $i | sed 's/[\/.]/_/g'| awk '{ print $1 }'`
		printf "$name.label "
                echo $i | awk "{
                        dir=\$6
                        if (length(dir) <= $MAXLABEL)
                                print dir
                        else
                                printf (\"...%s\n\", substr (dir, length(dir)-$MAXLABEL+4, $MAXLABEL-3))
                }"
		echo "$name.warning 92"
		echo "$name.critical 98" 
	done
	exit 0
fi

print_values
