Fix another license problem.

pkg/util/strategicpatch/patch.go

@@ -17,11 +17,12 @@ limitations under the License.
 package strategicpatch
 
 import (
-	"bytes"
 	"encoding/json"
 	"fmt"
 	"reflect"
 	"sort"
+
+	forkedjson "github.com/GoogleCloudPlatform/kubernetes/third_party/forked/json"
 )
 
 // An alternate implementation of JSON Merge Patch
@@ -101,7 +102,7 @@ func mergeMap(original, patch map[string]interface{}, t reflect.Type) (map[strin
 		}
 		// If they're both maps or lists, recurse into the value.
 		// First find the fieldPatchStrategy and fieldPatchMergeKey.
-		fieldType, fieldPatchStrategy, fieldPatchMergeKey, err := lookupPatchMetadata(t, k)
+		fieldType, fieldPatchStrategy, fieldPatchMergeKey, err := forkedjson.LookupPatchMetadata(t, k)
 		if err != nil {
 			return nil, err
 		}
@@ -268,7 +269,7 @@ func sortMergeListsByName(mapJSON []byte, dataStruct interface{}) ([]byte, error
 func sortMergeListsByNameMap(s map[string]interface{}, t reflect.Type) (map[string]interface{}, error) {
 	newS := map[string]interface{}{}
 	for k, v := range s {
-		fieldType, fieldPatchStrategy, fieldPatchMergeKey, err := lookupPatchMetadata(t, k)
+		fieldType, fieldPatchStrategy, fieldPatchMergeKey, err := forkedjson.LookupPatchMetadata(t, k)
 		if err != nil {
 			return nil, err
 		}
@@ -431,39 +432,3 @@ func sliceElementType(slices ...[]interface{}) (reflect.Type, error) {
 	}
 	return prevType, nil
 }
-
-// Finds the patchStrategy and patchMergeKey struct tag fields on a given
-// struct field given the struct type and the JSON name of the field.
-func lookupPatchMetadata(t reflect.Type, jsonField string) (reflect.Type, string, string, error) {
-	if t.Kind() == reflect.Map {
-		return t.Elem(), "", "", nil
-	}
-	if t.Kind() != reflect.Struct {
-		return nil, "", "", fmt.Errorf("merging an object in json but data type is not map or struct, instead is: %s",
-			t.Kind().String())
-	}
-	jf := []byte(jsonField)
-	// Find the field that the JSON library would use.
-	var f *field
-	fields := cachedTypeFields(t)
-	for i := range fields {
-		ff := &fields[i]
-		if bytes.Equal(ff.nameBytes, jf) {
-			f = ff
-			break
-		}
-		// Do case-insensitive comparison.
-		if f == nil && ff.equalFold(ff.nameBytes, jf) {
-			f = ff
-		}
-	}
-	if f != nil {
-		// Find the reflect.Value of the most preferential
-		// struct field.
-		tjf := t.Field(f.index[0])
-		patchStrategy := tjf.Tag.Get("patchStrategy")
-		patchMergeKey := tjf.Tag.Get("patchMergeKey")
-		return tjf.Type, patchStrategy, patchMergeKey, nil
-	}
-	return nil, "", "", fmt.Errorf("unable to find api field in struct %s for the json field %q", t.Name(), jsonField)
-}

third_party/forked/json/LICENSE

@@ -0,0 +1,27 @@
+Copyright (c) 2012 The Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

third_party/forked/json/fields.go

@@ -1,29 +1,14 @@
-/*
-Copyright 2014 Google Inc. All rights reserved.
-
-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.
-*/
-
-// NOTE: The below is taken from the Go standard library to enable us to find
-// the field of a struct that a given JSON key maps to.
-//
 // Copyright 2013 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
-package strategicpatch
+
+// Package json is forked from the Go standard library to enable us to find the
+// field of a struct that a given JSON key maps to.
+package json
 
 import (
 	"bytes"
+	"fmt"
 	"reflect"
 	"sort"
 	"strings"
@@ -32,6 +17,43 @@ import (
 	"unicode/utf8"
 )
 
+// Finds the patchStrategy and patchMergeKey struct tag fields on a given
+// struct field given the struct type and the JSON name of the field.
+// TODO: fix the returned errors to be introspectable.
+func LookupPatchMetadata(t reflect.Type, jsonField string) (reflect.Type, string, string, error) {
+	if t.Kind() == reflect.Map {
+		return t.Elem(), "", "", nil
+	}
+	if t.Kind() != reflect.Struct {
+		return nil, "", "", fmt.Errorf("merging an object in json but data type is not map or struct, instead is: %s",
+			t.Kind().String())
+	}
+	jf := []byte(jsonField)
+	// Find the field that the JSON library would use.
+	var f *field
+	fields := cachedTypeFields(t)
+	for i := range fields {
+		ff := &fields[i]
+		if bytes.Equal(ff.nameBytes, jf) {
+			f = ff
+			break
+		}
+		// Do case-insensitive comparison.
+		if f == nil && ff.equalFold(ff.nameBytes, jf) {
+			f = ff
+		}
+	}
+	if f != nil {
+		// Find the reflect.Value of the most preferential
+		// struct field.
+		tjf := t.Field(f.index[0])
+		patchStrategy := tjf.Tag.Get("patchStrategy")
+		patchMergeKey := tjf.Tag.Get("patchMergeKey")
+		return tjf.Type, patchStrategy, patchMergeKey, nil
+	}
+	return nil, "", "", fmt.Errorf("unable to find api field in struct %s for the json field %q", t.Name(), jsonField)
+}
+
 // A field represents a single field found in a struct.
 type field struct {
 	name      string