Sync time of RF Daemon every 30min (#425)

* sync homematic time periodically

* Show "Run SetInterfaceClock" in log file

* signal handler added

* version incremented

* Update CHANGELOG.md

homematic/CHANGELOG.md

@@ -1,5 +1,8 @@
 # Changelog
 
+## 3
+ - Add periodically time sync
+
 ## 2
 - Fix wrong Timezone
 - Update OCCU to 3.37.8

homematic/config.json

@@ -1,6 +1,6 @@
 {
   "name": "HomeMatic OCCU",
-  "version": "2",
+  "version": "3",
   "slug": "homematic",
   "description": "HomeMatic central based on OCCU",
   "url": "https://home-assistant.io/addons/homematic/",

homematic/run.sh

@@ -75,5 +75,24 @@ if [ "$WIRED_ENABLE" == "true" ]; then
     WAIT_PIDS+=($!)
 fi
 
+# Register stop
+function stop_homematic() {
+    echo "Kill Processes..."
+    kill -15 "${WAIT_PIDS[@]}"
+    wait "${WAIT_PIDS[@]}"
+    echo "Done."
+}
+trap "stop_homematic" SIGTERM SIGHUP
+
+# sync time periodically
+if [ "$RF_ENABLE" == "true" ]; then
+    while true
+    do
+        sleep 30m
+        echo "$(date '+%Y-%m-%d %H:%M:%S.%3N') Run SetInterfaceClock now."
+        "$HM_HOME/bin/SetInterfaceClock" 127.0.0.1:2001
+    done
+fi
+
 # Wait until all is done
 wait "${WAIT_PIDS[@]}"