feat util: Add silly map-merge function that should be in the stdlib

util/util.go

@@ -0,0 +1,25 @@
+package util
+
+// Merges two maps together. Values from the second map override values in the first map.
+// The returned map is new if anything was changed.
+func Merge(in1 *map[string]interface{}, in2 *map[string]interface{}) *map[string]interface{} {
+	if in1 == nil || len(*in1) == 0 {
+		return in2
+	}
+
+	if in2 == nil || len(*in2) == 0 {
+		return in1
+	}
+
+
+	new := make(map[string]interface{})
+	for k, v := range *in1 {
+		new[k] = v
+	}
+
+	for k, v := range *in2 {
+		new[k] = v
+	}
+
+	return &new
+}