Make types package public.

types/generationbehavior.go

@@ -0,0 +1,46 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package types
+
+// GenerationBehavior specifies generation behavior of configmaps, secrets and maybe other resources.
+type GenerationBehavior int
+
+const (
+	// BehaviorUnspecified is an Unspecified behavior; typically treated as a Create.
+	BehaviorUnspecified GenerationBehavior = iota
+	// BehaviorCreate makes a new resource.
+	BehaviorCreate
+	// BehaviorReplace replaces a resource.
+	BehaviorReplace
+	// BehaviorMerge attempts to merge a new resource with an existing resource.
+	BehaviorMerge
+)
+
+// String converts a GenerationBehavior to a string.
+func (b GenerationBehavior) String() string {
+	switch b {
+	case BehaviorReplace:
+		return "replace"
+	case BehaviorMerge:
+		return "merge"
+	case BehaviorCreate:
+		return "create"
+	default:
+		return "unspecified"
+	}
+}
+
+// NewGenerationBehavior converts a string to a GenerationBehavior.
+func NewGenerationBehavior(s string) GenerationBehavior {
+	switch s {
+	case "replace":
+		return BehaviorReplace
+	case "merge":
+		return BehaviorMerge
+	case "create":
+		return BehaviorCreate
+	default:
+		return BehaviorUnspecified
+	}
+}