run only one instance of this script at a time

[irspy-moved-to-github.git] / bin / irspy-update.sh

diff --git a/bin/irspy-update.sh b/bin/irspy-update.sh
index fea2758..a29d167 100755 (executable)
--- a/bin/irspy-update.sh
+++ b/bin/irspy-update.sh
@@ -8,11 +8,23 @@
 home=/usr/local/src/git
 cd $home/irspy/bin || exit 2
 logdir=../tmp
+lockfile=../tmp/irspy-update.lock
+
+if [ -f $lockfile ]; then
+    pid=`cat $lockfile`
+    if kill -0 $pid 2>/dev/null; then
+       echo "This script is already running with pid: $pid"
+       exit 1
+    fi
+fi
+echo $$ > $lockfile || exit 2
 
 for i in 0 1 2 3 4 5 6
 do
-   logfile=$logdir/irspy-mod-$i.log.`date '%w'`
+   logfile=$logdir/irspy-mod-$i.log.`date '+%w'`
    YAZ_LOG=irspy,irspy_test nice -10 time perl -I../lib irspy.pl -n 50 -d -M 3500 -a -t Main -m 7,$i localhost:8018/IR-Explain---1 > $logfile 2>&1
    gzip -f $logfile
 done
 
+rm -f $lockfile
+