Merge pull request #508 from twhiston/cfg_file_error_scope

bugfix for error scopes in config checking

util/config.go

@@ -157,30 +157,19 @@ func loadConfig(){
 	//If the confPath option has been set try to load and decode it
 	if confPath != nil && len(*confPath) > 0 {
 		file, err := os.Open(*confPath)
-		if err != nil {
-			panic(err)
-		}
+		exitOnConfigError(err)
 		decodeConfig(file)
 	} else {
-
 		// if no confPath look in the cwd
 		cwd, err := os.Getwd()
+		exitOnConfigError(err)
 		cwd = cwd+"/config.json"
 		confPath = &cwd
-		if err == nil {
-			file, err := os.Open(*confPath)
-			if err == nil {
-				decodeConfig(file)
-			}
-		}
-		if err != nil {
-			fmt.Println("Cannot Find configuration! Use -c parameter to point to a JSON file generated by -setup.\n\n Hint: have you run `-setup` ?")
-			os.Exit(1)
-		}
-
+		file, err := os.Open(*confPath)
+		exitOnConfigError(err)
+		decodeConfig(file)
 	}
 	fmt.Println("Using config file: "+ *confPath)
-
 }
 
 func validateConfig(){
@@ -210,6 +199,13 @@ func validatePort() {
 	}
 }
 
+func exitOnConfigError(err error){
+	if err != nil {
+		fmt.Println("Cannot Find configuration! Use -c parameter to point to a JSON file generated by -setup.\n\n Hint: have you run `-setup` ?")
+		os.Exit(1)
+	}
+}
+
 
 
 func decodeConfig(file *os.File){