Isolated content of pkg/kustomize

pkg/types/util.go

@@ -0,0 +1,59 @@
+/*
+Copyright 2018 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package types
+
+import (
+	"strings"
+
+	"k8s.io/apimachinery/pkg/runtime/schema"
+)
+
+func (gvkn GroupVersionKindName) String() string {
+	if gvkn.GVK.Group == "" {
+		return strings.Join([]string{gvkn.GVK.Version, gvkn.GVK.Kind, gvkn.Name}, "_") + ".yaml"
+	}
+	return strings.Join([]string{gvkn.GVK.Group, gvkn.GVK.Version, gvkn.GVK.Kind, gvkn.Name}, "_") + ".yaml"
+}
+
+// SelectByGVK returns true if `selector` selects `in`; otherwise, false.
+// If `selector` and `in` are the same, return true.
+// If `selector` is nil, it is considered as a wildcard and always return true.
+// e.g. selector <Group: "", Version: "", Kind: "Deployemt"> CAN select
+// <Group: "extensions", Version: "v1beta1", Kind: "Deployemt">.
+// selector <Group: "apps", Version: "", Kind: "Deployemt"> CANNOT select
+// <Group: "extensions", Version: "v1beta1", Kind: "Deployemt">.
+func SelectByGVK(in schema.GroupVersionKind, selector *schema.GroupVersionKind) bool {
+	if selector == nil {
+		return true
+	}
+	if len(selector.Group) > 0 {
+		if in.Group != selector.Group {
+			return false
+		}
+	}
+	if len(selector.Version) > 0 {
+		if in.Version != selector.Version {
+			return false
+		}
+	}
+	if len(selector.Kind) > 0 {
+		if in.Kind != selector.Kind {
+			return false
+		}
+	}
+	return true
+}