pkg/proxy/config: clean up file.Run()

pkg/proxy/config/file.go

@@ -77,14 +77,19 @@ func (impl ConfigSourceFile) Run() {
 		data, err := ioutil.ReadFile(impl.filename)
 		if err != nil {
 			glog.Errorf("Couldn't read file: %s : %v", impl.filename, err)
-		} else {
-			var config ConfigFile
-			err = json.Unmarshal(data, &config)
-			if err != nil {
-				glog.Errorf("Couldn't unmarshal configuration from file : %s %v", data, err)
-			} else {
-				if !bytes.Equal(lastData, data) {
+			continue
+		}
+
+		if bytes.Equal(lastData, data) {
+			continue
+		}
 		lastData = data
+
+		config := new(ConfigFile)
+		if err = json.Unmarshal(data, config); err != nil {
+			glog.Errorf("Couldn't unmarshal configuration from file : %s %v", data, err)
+			continue
+		}
 		// Ok, we have a valid configuration, send to channel for
 		// rejiggering.
 		newServices := make([]api.Service, len(config.Services))
@@ -103,9 +108,7 @@ func (impl ConfigSourceFile) Run() {
 			impl.endpointsChannel <- endpointsUpdate
 			lastEndpoints = newEndpoints
 		}
-				}
-			}
-		}
+
 		time.Sleep(5 * time.Second)
 	}
 }