Munin contributed plugins

#!/bin/bash

#

# HDHomeRun Signal grapher

# David Muench - davemuench at gmail

#

# Version 1 - 1/19/11 - Initial release

#

# Munin plugin to graph the signal strength/quality for a HDHomeRun TV tuner.

# Developed and tested against a HDHR US Dual model.

#

# Requires the hdhomerun_config binary. It can be obtained from

# http://www.silicondust.com/support/hdhomerun/downloads/linux/

# Or if you are running Debian/Ubuntu:

# apt-get install hdhomerun-config

#

# Place the hdhomerun_ script in your munin plugins directory (usually

# /usr/share/munin/plugins) and create symlinks of the format

# "hdhomerun_<deviceid>_tuner<number>", such as hdhomerun_123456_tuner0.

# The deviceid can be obtained by running "hdhomerun_config discover".

# Alternatively, the script supports the suggest option which will

# scan for all HDHomeRun devices on the network and set up the symlinks.

# To do this, run:

#

# munin-node-configure --shell | grep hdhomerun | bash

#

# Note: It will assume you have a dual tuner model and set up links

# for tuner0 and tuner1. If you have a single tuner model, just delete

# the tuner1 link.

#

#%# family=auto

#%# capabilities=autoconf suggest

CONFIGPROG="/usr/bin/hdhomerun_config"

DEVID="`echo $0 | cut -d _ -f 2`"

TUNER="`echo $0 | cut -d _ -f 3`"

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

        if [ -x "$CONFIGPROG" ] ; then

                echo "yes"

        else

                echo "no ($CONFIGPROG Does not exist or isn't executable!)."

        fi

        exit

fi

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

	echo "graph_title HDHomeRun $DEVID $TUNER Signal Strength"

	echo "graph_args --upper-limit 100 -l 0"

	echo "graph_vlabel %"

	echo "graph_scale no"

	echo "graph_category tv"

	echo "ss.label Signal Strength"

	echo "snq.label Signal Quality"

	echo "seq.label Symbol Quality"

	exit

fi

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

	for i in "`$CONFIGPROG discover`"; do

		echo "`echo $i | awk '{print $3}'`_tuner0"

		echo "`echo $i | awk '{print $3}'`_tuner1"

	done

	exit

fi

OUTPUT="`$CONFIGPROG $DEVID get /$TUNER/status`"

# Signal Strength

echo "ss.value `echo $OUTPUT | sed -e 's/^.*ss=//' -e 's/d* .*$//'`"

# Signal Quality

echo "snq.value `echo $OUTPUT | sed -e 's/^.*snq=//' -e 's/d* .*$//'`"

# Symbol Quality

echo "seq.value `echo $OUTPUT | sed -e 's/^.*seq=//' -e 's/d* .*$//'`"