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  • Committer: Saikrishna Arcot
  • Date: 2013-03-08 22:57:16 UTC
  • Revision ID: saiarcot895@gmail.com-20130308225716-1c60fatbyjqc4d2j
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debian/keep-alive.sh
 
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#!/bin/sh
 
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# Simple keep-alive script echoing the date on stdout
 
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# This is needed to prevent the builders from killing a build
 
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# staying too long without producing outputs, like while
 
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# linking chromium with ld-bfd.
 
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#
 
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# Usage:
 
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#    keep-alive.sh start &
 
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#    some actions...
 
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#    keep-alive.sh stop
 
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#
 
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# Authors:
 
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#  Fabien Tassin <fta@sofaraway.org>
 
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# License: GPLv2 or later
 
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ACTION=$1
 
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LOCK=/var/tmp/k-a.lock
 
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INTERVAL=5
 
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LINTERVAL=300
 
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case $ACTION in
 
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 start)
 
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   echo $$ > $LOCK
 
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   T0=$(date +%s)
 
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   T1=0
 
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   while [ 1 ] ; do
 
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     if [ ! -f $LOCK ] ; then
 
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       break
 
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     fi
 
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     T2=$(date +%s)
 
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     if [ $((T2-T1)) -ge $LINTERVAL ] ; then
 
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       DELTA=$((T2-T0))
 
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       FREE=$(free -mo | cut -c1-6,30-40 | tail -2 | awk '{ print "Free " $1 " " $2 "M" } ' | tr '\n' ' ')
 
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       echo "[keep-alive] $(date) ($((DELTA/60)) min) [ $FREE]"
 
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       T1=$T2
 
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     fi
 
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     sleep $INTERVAL
 
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   done
 
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   exit 0
 
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   ;;
 
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 stop)
 
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   PID=$(cat $LOCK)
 
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   rm -f $LOCK
 
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   exit 0
 
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   ;;
 
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 *)
 
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   echo "Usage: $(basename $0) [start|stop]"
 
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   exit 1
 
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esac