Merge pull request #208 from letompouce/master

New plugin: mpdstats_

plugins/mpd/mpdstats_

@@ -0,0 +1,134 @@
+#!/bin/sh
+
+# vim: set ft=sh :
+# -*- sh -*-
+
+: << =cut
+
+=head1 NAME
+
+mpdstats_ - Munin plugin to monitor a MPD database
+
+=head1 DEPENDENCIES
+
+This plugin uses netcat(1) to communicate with the MPD daemon.
+
+Tip: To see if it is already set up correctly, just run this plugin
+with the parameter "autoconf". If you get a "yes", everything should
+work like a charm already.
+
+=head1 INSTALLATION
+
+This wildcard plugin should be symlinked using one of these names:
+mpdstats_artists, mpdstats_albums, mpdstats_songs
+
+=head1 CONFIGURATION
+
+No configuration should be required if run on the same server as
+MPD. If the plugin is run from remote or in a non-default configuration,
+please use the environment variables 'mpd_host' and 'mpd_port' to connect.
+
+Also, if your netcat(1) binary is anywhere else than /bin/nc please define
+it using the 'netcat' environment variable.
+
+=head2 CONFIGURATION EXAMPLE
+
+ [mpd_*]
+  env.mpd_host 192.168.0.43
+  env.mpd_port 6606
+  env.netcat /usr/local/bin/nc
+
+=head1 AUTHOR
+
+Copyright (C) 2012 ToM <tom@leloop.org>
+
+=head1 LICENSE
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; version 2 dated June,
+1991.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+=head1 MAGIC MARKERS
+
+ #%# family=auto
+ #%# capabilities=autoconf suggest
+
+=cut
+
+
+
+MPDHOST=${mpd_host:-localhost}
+MPDPORT=${mpd_port:-6600}
+NCBIN=${netcat:-/bin/nc}
+
+#
+# FUNCTIONS
+#
+
+do_autoconf () {
+    case "$ACTION" in
+        albums|artists|songs)
+            ;;
+        *)
+            echo "no (not a valid symlink name, please read the plugin doc)"
+            exit 1
+            ;;
+    esac
+
+    if [ ! -x $NCBIN ] ; then
+        echo "no ($NCBIN: not found or not executable)"
+        exit 1
+    fi
+
+    echo version | $NCBIN -q 2 $MPDHOST $MPDPORT 1>/dev/null 2>&1
+    if [ "$?" != 0 ] ; then
+        echo "no (connection failed)"
+        exit 1
+    fi
+
+    echo "yes"
+    exit 0
+}
+
+#
+# MAIN
+#
+
+SCRIPTNAME=${0##*/}
+ACTION=${SCRIPTNAME##*_}
+
+case "$1" in
+    autoconf)
+        do_autoconf
+        ;;
+    suggest)
+        echo "$ACTION"
+        exit 0
+        ;;
+    config)
+        echo "graph_category MPD
+graph_title $ACTION in the database
+graph_info Number of $ACTION in the database.
+graph_vlabel $ACTION in the db
+graph_args --base 1000 -l 0
+graph_scale no
+$ACTION.type GAUGE
+$ACTION.draw LINE2
+$ACTION.label $ACTION"
+        exit 0
+        ;;
+    *)
+        printf "$ACTION.value "
+        echo stats | $NCBIN -q 2 $MPDHOST $MPDPORT | awk " /^${ACTION}/ {print \$2}"
+        ;;
+esac