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#!@@GOODSH@@
# -*- sh -*-
: << =cut
=head1 NAME
digitemp_ - Plugin to monitor Dallas 1-wire temperature sensors using
digitemp
=head1 CONFIGURATION
The following enviroment variables are used by this plugin:
digitemprc - config file to use. (Default /etc/digitemp.conf)
This must be generated with digitemp_<model> -i
=head1 USAGE
Symlink as the name of the digitemp program to use, i.e. digitemp_DS2490
and create configuration file (default: /etc/digitemp.conf).
=head1 AUTHOR
Copyright (C) 2006 Dagfinn Ilmari Mannsåker <ilmari@ilmari.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
#%# capabilities=autoconf suggest
#%# family=auto
=cut
# common values: digitemp_DS2490, digitemp_DS9097, digitemp_DS9097U
digitemp_bin=${0##*/}
model=${digitemp_bin##*_}
digitemprc=${digitemprc:-/etc/digitemp.conf}
get_sensor_data() {
local output_pattern="$1"
"$digitemp_bin" -c "$digitemprc" -q -a -o "$output_pattern" | grep -v ^Found
}
# find executable files in the search path starting with "digitemp_"
find_digitemp_executables() {
[ -z "${PATH:-}" ] && return
# split PATH by colons
local IFS=":"
# shellcheck disable=SC2086
find $PATH -maxdepth 1 -xtype f -executable -name "digitemp_*" -print0 2>/dev/null \
| xargs -0 -r -n 1 basename
}
if [ "$1" = "suggest" ]; then
find_digitemp_executables
exit 0
fi
if [ "$1" = "autoconf" ]; then
if [ -z "$(find_digitemp_executables)" ]; then
echo "no (failed to find executable starting with 'digitemp_')"
elif [ ! -r "$digitemprc" ]; then
echo "no (failed to read configuration file: $digitemprc)"
else
echo "yes"
fi
exit 0
fi
# check if the digitemp executable is available
if ! [ -x "$(command -v "$digitemp_bin")" ]; then
echo "executable '$digitemp_bin' not found" >&2
exit 1
fi
if [ "$1" = "config" ]; then
echo "graph_title DigiTemp $model temperatures"
echo 'graph_vlabel degrees C'
echo 'graph_category sensors'
echo "graph_info This graph shows the temperature read from $model 1-wire sensors"
get_sensor_data "%R %s" | while read -r serial sensor; do
echo "sensor$serial.label sensor #$sensor"
echo "sensor$serial.type GAUGE"
echo "sensor$serial.info Temperature from sensor #$sensor"
echo "sensor$serial.critical 30"
echo "sensor$serial.warning 25"
done
exit 0
fi
get_sensor_data "sensor%R.value %C"
|
