make it only run once

afresh1 · Sep 3, 2012 · 7ffdc04 · 7ffdc04
1 parent 4e055dc
commit 7ffdc04
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/regen.sh b/regen.sh
@@ -4,6 +4,17 @@
 . /etc/OpenBSDTorrents.conf
 
 cd ${OBT_DIR_HOME}
+PIDFILE=${OBT_DIR_HOME}/run/regen.pid
+
+if [ -e ${PIDFILE} ]; then
+        PID=`head -1 ${PIDFILE}`
+        kill -0 ${PID} 2> /dev/null
+        if [ $? -eq 0 ]; then
+                echo Already running
+                exit 1
+        fi
+fi
+echo $$ > ${PIDFILE}
 
 if [[ $1 != skip ]]; then
 	echo ${OBT_DIR_HOME}/MakeTorrents.pl $*