#!/bin/sh

export LC_NUMERIC=C

# rrdtool create /var/log/temperature.rrd -s 300 \
# DS:cpu:GAUGE:600:0:100 \
# DS:board:GAUGE:600:0:100 \
# DS:ds1:GAUGE:600:-50:50 \
# DS:ds2:GAUGE:600:-50:50 \
# DS:ds3:GAUGE:600:-50:50 \
# DS:ds4:GAUGE:600:-50:50 \
# RRA:AVERAGE:0.5:1:600 \
# RRA:AVERAGE:0.5:6:700 \
# RRA:AVERAGE:0.5:24:775 \
# RRA:AVERAGE:0.5:288:797

# This command creates a database which stores every 300 seconds (5
# minutes) a temperature sample and contains averages over:

# 600 5-minute samples (2 days and 2 hours),
# 600 30-minute samples (2 days and 2 hours, plus 12.5 days),
# 775 2-hour samples (above plus 50 days) and
# 797 1-day samples (above plus 732 days rounded up to 797).

FILE=/var/log/temperature.rrd
eval `sensors | awk '/M.B:/ { printf "board=%f\n", $2 }; /CPU:/ { printf "cpu=%f\n", $2 }'`
ds1=`cat /var/spool/tsl.1`
ds2=`cat /var/spool/tsl.2`
ds3=''
ds4=''
eval `tail -1 /var/log/smarttemp | cut -f6- -d, | awk 'BEGIN { FS="," } { print "sda=" $1, "sdb=" $2 }'`

rrdtool update $FILE N:$cpu:$board:$ds1:$ds2:$ds3:$ds4:$sda:$sdb