avoid log repetition when it is the same

aircox_streamer/management/commands/streamer.py

@@ -122,10 +122,17 @@ class Monitor:
         self.handle_diffusions()
         self.sync()
 
-    def log(self, date=None, **kwargs):
+    __last_log_kwargs = None
+
+    def log(self, **kwargs):
         """ Create a log using **kwargs, and print info """
+        if self.__last_log_kwargs == kwargs:
+            return
+
+        self.__last_log_kwargs = kwargs
         kwargs.setdefault('station', self.station)
-        log = Log(date=date or tz.now(), **kwargs)
+        kwargs.setdefault('date', tz.now())
+        log = Log(**kwargs)
         log.save()
         log.print()
         return log