[master] 4bdfa56 vtest: optionally limit the number of runs

[Nils Goroll]

commit 4bdfa56ce1e134de7639cec84f8acb1f4a33f40a
Author: Nils Goroll <nils.goroll at uplex.de>
Date:   Wed Dec 7 11:53:59 2016 +0100

    vtest: optionally limit the number of runs
    
    This allows unattended updates of vtest.sh itself by looping externally

diff --git a/tools/vtest.sh b/tools/vtest.sh
index 5eff55c..befc44f 100755
--- a/tools/vtest.sh
+++ b/tools/vtest.sh
@@ -44,6 +44,7 @@ WAITPERIOD=60		# unit: Seconds
 
 WAITGOOD=60		# unit: WAITPERIOD
 WAITBAD=1		# unit: WAITPERIOD
+MAXRUNS="${MAXRUNS:-0}"
 
 SSH_DST="-p 203 vtest at varnish-cache.org"
 
@@ -125,9 +126,12 @@ fi
 
 orev=000
 waitnext=${WAITBAD}
+i=0
 
-while true
+while [ $MAXRUNS -eq 0 ] || [ $i -lt $MAXRUNS ]
 do
+	i=`expr $i + 1`
+
 	(cd varnish-cache && git pull > /dev/null 2>&1 || true)
 	rev=`cd varnish-cache && git show -s --pretty=format:%H`
 	if [ "${waitnext}" -gt 0 -a "x${rev}" = "x${orev}" ] ; then