100 lines
2.3 KiB
Bash
Executable file
100 lines
2.3 KiB
Bash
Executable file
#!/bin/sh
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################################################################################
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#
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# nut-recorder
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# An utility to record device running sequence (Ie power failures or any
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# other change) and dump it in a .seq format
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# The .seq file can then be used by the 'dummy-ups driver to replay the
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# sequence.
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#
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################################################################################
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# FIXME:
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# - implement PAUSE / RESUME (do not increment TIMER) on pressing space (?)
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# - implement support for creating either .dev (static dump) or .seq
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# - implement dump of instcmd and upsrw
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################################################################################
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strUsage="Usage: nut-recorder <device-name> [output-file] [interval]"
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# log data each 5 seconds
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DEFAULT_INTERVAL=5
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# temporary files location
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TEMP_DIR="/tmp"
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# output this file by default
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DEFAULT_OUTPUT="dummy-device.seq"
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# Process command line parameters
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if [ -z "$1" ]; then
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echo "$strUsage"
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exit
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else
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devName=$1
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fi
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if [ -z "$2" ]; then
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outFile=$DEFAULT_OUTPUT
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else
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outFile=$2
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fi
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if [ -z "$3" ]; then
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pollInterval=$DEFAULT_INTERVAL
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else
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pollInterval=$3
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fi
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# initialize TIMER value
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curTimer=0
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# Test communication with the device
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testResult="`upsc $devName > /dev/null`"
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if [ $? -gt 0 ]; then
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echo "$devName: $testResult"
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exit
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fi
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# initialize output file
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echo "# dummy-ups sequence recorded with $0\n"> $outFile
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# initialize data
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upsc $devName >> $outFile
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cp -f $outFile ${TEMP_DIR}/prevDump.tmp
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echo "Initial data:\n"
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cat $outFile
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while (true)
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do
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# rest a bit before getting fresh data
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sleep $pollInterval
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# update the TIMER value
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curTimer=`expr $curTimer + $pollInterval`
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# dump the current data
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testResult="`upsc $devName > ${TEMP_DIR}/curDump.tmp`"
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if [ $? -gt 0 ]; then
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echo "$devName: $testResult"
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# FIXME: what to do (pause, exit)?
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fi
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# do the diff
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dataDiff="`diff --unchanged-line-format='' --old-line-format='' --new-line-format='%L' ${TEMP_DIR}/prevDump.tmp ${TEMP_DIR}/curDump.tmp`"
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# dump actual, if any
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if [ ! -z "${dataDiff}" ]; then
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# dump differences
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echo "TIMER $curTimer" >> $outFile
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echo "$dataDiff" >> $outFile
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# and echo out
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echo "TIMER $curTimer"
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echo "$dataDiff"
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curTimer=0
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fi
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# rotate dumps
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mv ${TEMP_DIR}/curDump.tmp ${TEMP_DIR}/prevDump.tmp
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done
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