From 7ac94bbf5fe5bcf287233e6e73f2ca99aafc671c Mon Sep 17 00:00:00 2001
From: James Shubin <james@shubin.ca>
Date: Wed, 7 Jun 2017 03:15:06 -0400
Subject: [PATCH] resources: Panic if attempting to register a duplicate
 resource

Don't silently let this overwrite pass. It would mean a mistake.
---
 resources/resources.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/resources/resources.go b/resources/resources.go
index aee007e4..665b0507 100644
--- a/resources/resources.go
+++ b/resources/resources.go
@@ -45,6 +45,9 @@ var registeredResources = map[string]func() Res{}
 // RegisterResource registers a new resource by providing a constructor
 // function that returns a resource object ready to be unmarshalled from YAML.
 func RegisterResource(kind string, fn func() Res) {
+	if _, ok := registeredResources[kind]; ok {
+		panic(fmt.Sprintf("a resource kind of %s is already registered", kind))
+	}
 	gob.Register(fn())
 	registeredResources[kind] = fn
 }