update hash util

pkg/kustomize/hash/hash.go

@@ -25,7 +25,7 @@ import (
 )
 
 // ConfigMapHash returns a hash of the ConfigMap.
-// The data, Kind, and Name are taken into account.
+// The Data, Kind, and Name are taken into account.
 func ConfigMapHash(cm *v1.ConfigMap) (string, error) {
 	encoded, err := encodeConfigMap(cm)
 	if err != nil {
@@ -39,7 +39,7 @@ func ConfigMapHash(cm *v1.ConfigMap) (string, error) {
 }
 
 // SecretHash returns a hash of the Secret.
-// The data, Kind, Name, and Type are taken into account.
+// The Data, Kind, Name, and Type are taken into account.
 func SecretHash(sec *v1.Secret) (string, error) {
 	encoded, err := encodeSecret(sec)
 	if err != nil {
@@ -53,10 +53,14 @@ func SecretHash(sec *v1.Secret) (string, error) {
 }
 
 // encodeConfigMap encodes a ConfigMap.
-// data, Kind, and Name are taken into account.
+// Data, Kind, and Name are taken into account.
 func encodeConfigMap(cm *v1.ConfigMap) (string, error) {
 	// json.Marshal sorts the keys in a stable order in the encoding
-	data, err := json.Marshal(map[string]interface{}{"kind": "ConfigMap", "name": cm.Name, "data": cm.Data})
+	m := map[string]interface{}{"kind": "ConfigMap", "name": cm.Name, "data": cm.Data}
+	if len(cm.BinaryData) > 0 {
+		m["binaryData"] = cm.BinaryData
+	}
+	data, err := json.Marshal(m)
 	if err != nil {
 		return "", err
 	}
@@ -64,7 +68,7 @@ func encodeConfigMap(cm *v1.ConfigMap) (string, error) {
 }
 
 // encodeSecret encodes a Secret.
-// data, Kind, Name, and Type are taken into account.
+// Data, Kind, Name, and Type are taken into account.
 func encodeSecret(sec *v1.Secret) (string, error) {
 	// json.Marshal sorts the keys in a stable order in the encoding
 	data, err := json.Marshal(map[string]interface{}{"kind": "Secret", "type": sec.Type, "name": sec.Name, "data": sec.Data})

pkg/kustomize/hash/hash_test.go

@@ -32,11 +32,19 @@ func TestConfigMapHash(t *testing.T) {
 		err  string
 	}{
 		// empty map
-		{"empty data", &v1.ConfigMap{Data: map[string]string{}}, "42745tchd9", ""},
+		{"empty data", &v1.ConfigMap{Data: map[string]string{}, BinaryData: map[string][]byte{}}, "42745tchd9", ""},
 		// one key
 		{"one key", &v1.ConfigMap{Data: map[string]string{"one": ""}}, "9g67k2htb6", ""},
 		// three keys (tests sorting order)
 		{"three keys", &v1.ConfigMap{Data: map[string]string{"two": "2", "one": "", "three": "3"}}, "f5h7t85m9b", ""},
+		// empty binary data map
+		{"empty binary data", &v1.ConfigMap{BinaryData: map[string][]byte{}}, "dk855m5d49", ""},
+		// one key with binary data
+		{"one key with binary data", &v1.ConfigMap{BinaryData: map[string][]byte{"one": []byte("")}}, "mk79584b8c", ""},
+		// three keys with binary data (tests sorting order)
+		{"three keys with binary data", &v1.ConfigMap{BinaryData: map[string][]byte{"two": []byte("2"), "one": []byte(""), "three": []byte("3")}}, "t458mc6db2", ""},
+		// two keys, one with string and another with binary data
+		{"two keys with one each", &v1.ConfigMap{Data: map[string]string{"one": ""}, BinaryData: map[string][]byte{"two": []byte("")}}, "698h7c7t9m", ""},
 	}
 
 	for _, c := range cases {
@@ -89,6 +97,14 @@ func TestEncodeConfigMap(t *testing.T) {
 		{"one key", &v1.ConfigMap{Data: map[string]string{"one": ""}}, `{"data":{"one":""},"kind":"ConfigMap","name":""}`, ""},
 		// three keys (tests sorting order)
 		{"three keys", &v1.ConfigMap{Data: map[string]string{"two": "2", "one": "", "three": "3"}}, `{"data":{"one":"","three":"3","two":"2"},"kind":"ConfigMap","name":""}`, ""},
+		// empty binary map
+		{"empty data", &v1.ConfigMap{BinaryData: map[string][]byte{}}, `{"data":null,"kind":"ConfigMap","name":""}`, ""},
+		// one key with binary data
+		{"one key", &v1.ConfigMap{BinaryData: map[string][]byte{"one": []byte("")}}, `{"binaryData":{"one":""},"data":null,"kind":"ConfigMap","name":""}`, ""},
+		// three keys with binary data (tests sorting order)
+		{"three keys", &v1.ConfigMap{BinaryData: map[string][]byte{"two": []byte("2"), "one": []byte(""), "three": []byte("3")}}, `{"binaryData":{"one":"","three":"Mw==","two":"Mg=="},"data":null,"kind":"ConfigMap","name":""}`, ""},
+		// two keys, one string and one binary values
+		{"two keys with one each", &v1.ConfigMap{Data: map[string]string{"one": ""}, BinaryData: map[string][]byte{"two": []byte("")}}, `{"binaryData":{"two":""},"data":{"one":""},"kind":"ConfigMap","name":""}`, ""},
 	}
 	for _, c := range cases {
 		s, err := encodeConfigMap(c.cm)
@@ -141,14 +157,14 @@ func TestTypeStability(t *testing.T) {
 	errfmt := `case %q, expected %d fields but got %d
 Depending on the field(s) you added, you may need to modify the hash function for this type.
 To guide you: the hash function targets fields that comprise the contents of objects,
-not their metadata (e.g. the data of a ConfigMap, but nothing in ObjectMeta).
+not their metadata (e.g. the Data of a ConfigMap, but nothing in ObjectMeta).
 `
 	cases := []struct {
 		typeName string
 		obj      interface{}
 		expect   int
 	}{
-		{"ConfigMap", v1.ConfigMap{}, 3},
+		{"ConfigMap", v1.ConfigMap{}, 4},
 		{"Secret", v1.Secret{}, 5},
 	}
 	for _, c := range cases {