working commit

vendor/sigs.k8s.io/kustomize/kyaml/sets/string.go

@@ -0,0 +1,64 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package sets
+
+type String map[string]interface{}
+
+func (s String) Len() int {
+	return len(s)
+}
+
+func (s String) List() []string {
+	val := make([]string, 0, len(s))
+	for k := range s {
+		val = append(val, k)
+	}
+	return val
+}
+
+func (s String) Has(val string) bool {
+	_, found := s[val]
+	return found
+}
+
+func (s String) Insert(vals ...string) {
+	for _, val := range vals {
+		s[val] = nil
+	}
+}
+
+func (s String) Difference(s2 String) String {
+	s3 := String{}
+	for k := range s {
+		if _, found := s2[k]; !found {
+			s3.Insert(k)
+		}
+	}
+	return s3
+}
+
+func (s String) SymmetricDifference(s2 String) String {
+	s3 := String{}
+	for k := range s {
+		if _, found := s2[k]; !found {
+			s3.Insert(k)
+		}
+	}
+	for k := range s2 {
+		if _, found := s[k]; !found {
+			s3.Insert(k)
+		}
+	}
+	return s3
+}
+
+func (s String) Intersection(s2 String) String {
+	s3 := String{}
+	for k := range s {
+		if _, found := s2[k]; found {
+			s3.Insert(k)
+		}
+	}
+	return s3
+}