update kube and vendor dependencies

With kubernetes 1.18 release of client-go, signatures on methods in
generated clientsets, dynamic, metadata, and scale clients have been
modified to accept context.Context as a first argument.
Signatures of Create, Update, and Patch methods have been updated
to accept CreateOptions, UpdateOptions and PatchOptions respectively.
Signatures of Delete and DeleteCollection methods now accept
DeleteOptions by value instead of by reference.
These changes are now accommodated with this PR and client-go
and dependencies are updated to v1.18.0

Signed-off-by: Humble Chirammal <hchiramm@redhat.com>

vendor/k8s.io/apimachinery/pkg/runtime/conversion.go

@@ -53,14 +53,6 @@ func JSONKeyMapper(key string, sourceTag, destTag reflect.StructTag) (string, st
 	return key, key
 }
 
-// DefaultStringConversions are helpers for converting []string and string to real values.
-var DefaultStringConversions = []interface{}{
-	Convert_Slice_string_To_string,
-	Convert_Slice_string_To_int,
-	Convert_Slice_string_To_bool,
-	Convert_Slice_string_To_int64,
-}
-
 func Convert_Slice_string_To_string(in *[]string, out *string, s conversion.Scope) error {
 	if len(*in) == 0 {
 		*out = ""
@@ -178,3 +170,27 @@ func Convert_Slice_string_To_Pointer_int64(in *[]string, out **int64, s conversi
 	*out = &i
 	return nil
 }
+
+func RegisterStringConversions(s *Scheme) error {
+	if err := s.AddConversionFunc((*[]string)(nil), (*string)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_Slice_string_To_string(a.(*[]string), b.(*string), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*[]string)(nil), (*int)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_Slice_string_To_int(a.(*[]string), b.(*int), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*[]string)(nil), (*bool)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_Slice_string_To_bool(a.(*[]string), b.(*bool), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*[]string)(nil), (*int64)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_Slice_string_To_int64(a.(*[]string), b.(*int64), scope)
+	}); err != nil {
+		return err
+	}
+	return nil
+}

vendor/k8s.io/apimachinery/pkg/runtime/converter.go

@@ -17,7 +17,6 @@ limitations under the License.
 package runtime
 
 import (
-	"bytes"
 	encodingjson "encoding/json"
 	"fmt"
 	"math"
@@ -32,6 +31,7 @@ import (
 	"k8s.io/apimachinery/pkg/conversion"
 	"k8s.io/apimachinery/pkg/util/json"
 	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
+	"sigs.k8s.io/structured-merge-diff/v3/value"
 
 	"k8s.io/klog"
 )
@@ -68,13 +68,8 @@ func newFieldsCache() *fieldsCache {
 }
 
 var (
-	marshalerType          = reflect.TypeOf(new(encodingjson.Marshaler)).Elem()
-	unmarshalerType        = reflect.TypeOf(new(encodingjson.Unmarshaler)).Elem()
 	mapStringInterfaceType = reflect.TypeOf(map[string]interface{}{})
 	stringType             = reflect.TypeOf(string(""))
-	int64Type              = reflect.TypeOf(int64(0))
-	float64Type            = reflect.TypeOf(float64(0))
-	boolType               = reflect.TypeOf(bool(false))
 	fieldCache             = newFieldsCache()
 
 	// DefaultUnstructuredConverter performs unstructured to Go typed object conversions.
@@ -208,13 +203,9 @@ func fromUnstructured(sv, dv reflect.Value) error {
 	}
 
 	// Check if the object has a custom JSON marshaller/unmarshaller.
-	if reflect.PtrTo(dt).Implements(unmarshalerType) {
-		data, err := json.Marshal(sv.Interface())
-		if err != nil {
-			return fmt.Errorf("error encoding %s to json: %v", st.String(), err)
-		}
-		unmarshaler := dv.Addr().Interface().(encodingjson.Unmarshaler)
-		return unmarshaler.UnmarshalJSON(data)
+	entry := value.TypeReflectEntryOf(dv.Type())
+	if entry.CanConvertFromUnstructured() {
+		return entry.FromUnstructured(sv, dv)
 	}
 
 	switch dt.Kind() {
@@ -256,6 +247,7 @@ func fieldInfoFromField(structType reflect.Type, field int) *fieldInfo {
 		for i := range items {
 			if items[i] == "omitempty" {
 				info.omitempty = true
+				break
 			}
 		}
 	}
@@ -483,112 +475,28 @@ func toUnstructuredViaJSON(obj interface{}, u *map[string]interface{}) error {
 	return json.Unmarshal(data, u)
 }
 
-var (
-	nullBytes  = []byte("null")
-	trueBytes  = []byte("true")
-	falseBytes = []byte("false")
-)
-
-func getMarshaler(v reflect.Value) (encodingjson.Marshaler, bool) {
-	// Check value receivers if v is not a pointer and pointer receivers if v is a pointer
-	if v.Type().Implements(marshalerType) {
-		return v.Interface().(encodingjson.Marshaler), true
-	}
-	// Check pointer receivers if v is not a pointer
-	if v.Kind() != reflect.Ptr && v.CanAddr() {
-		v = v.Addr()
-		if v.Type().Implements(marshalerType) {
-			return v.Interface().(encodingjson.Marshaler), true
-		}
-	}
-	return nil, false
-}
-
 func toUnstructured(sv, dv reflect.Value) error {
-	// Check if the object has a custom JSON marshaller/unmarshaller.
-	if marshaler, ok := getMarshaler(sv); ok {
-		if sv.Kind() == reflect.Ptr && sv.IsNil() {
-			// We're done - we don't need to store anything.
-			return nil
-		}
-
-		data, err := marshaler.MarshalJSON()
+	// Check if the object has a custom string converter.
+	entry := value.TypeReflectEntryOf(sv.Type())
+	if entry.CanConvertToUnstructured() {
+		v, err := entry.ToUnstructured(sv)
 		if err != nil {
 			return err
 		}
-		switch {
-		case len(data) == 0:
-			return fmt.Errorf("error decoding from json: empty value")
-
-		case bytes.Equal(data, nullBytes):
-			// We're done - we don't need to store anything.
-
-		case bytes.Equal(data, trueBytes):
-			dv.Set(reflect.ValueOf(true))
-
-		case bytes.Equal(data, falseBytes):
-			dv.Set(reflect.ValueOf(false))
-
-		case data[0] == '"':
-			var result string
-			err := json.Unmarshal(data, &result)
-			if err != nil {
-				return fmt.Errorf("error decoding string from json: %v", err)
-			}
-			dv.Set(reflect.ValueOf(result))
-
-		case data[0] == '{':
-			result := make(map[string]interface{})
-			err := json.Unmarshal(data, &result)
-			if err != nil {
-				return fmt.Errorf("error decoding object from json: %v", err)
-			}
-			dv.Set(reflect.ValueOf(result))
-
-		case data[0] == '[':
-			result := make([]interface{}, 0)
-			err := json.Unmarshal(data, &result)
-			if err != nil {
-				return fmt.Errorf("error decoding array from json: %v", err)
-			}
-			dv.Set(reflect.ValueOf(result))
-
-		default:
-			var (
-				resultInt   int64
-				resultFloat float64
-				err         error
-			)
-			if err = json.Unmarshal(data, &resultInt); err == nil {
-				dv.Set(reflect.ValueOf(resultInt))
-			} else if err = json.Unmarshal(data, &resultFloat); err == nil {
-				dv.Set(reflect.ValueOf(resultFloat))
-			} else {
-				return fmt.Errorf("error decoding number from json: %v", err)
-			}
+		if v != nil {
+			dv.Set(reflect.ValueOf(v))
 		}
-
 		return nil
 	}
-
-	st, dt := sv.Type(), dv.Type()
+	st := sv.Type()
 	switch st.Kind() {
 	case reflect.String:
-		if dt.Kind() == reflect.Interface && dv.NumMethod() == 0 {
-			dv.Set(reflect.New(stringType))
-		}
 		dv.Set(reflect.ValueOf(sv.String()))
 		return nil
 	case reflect.Bool:
-		if dt.Kind() == reflect.Interface && dv.NumMethod() == 0 {
-			dv.Set(reflect.New(boolType))
-		}
 		dv.Set(reflect.ValueOf(sv.Bool()))
 		return nil
 	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-		if dt.Kind() == reflect.Interface && dv.NumMethod() == 0 {
-			dv.Set(reflect.New(int64Type))
-		}
 		dv.Set(reflect.ValueOf(sv.Int()))
 		return nil
 	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
@@ -596,15 +504,9 @@ func toUnstructured(sv, dv reflect.Value) error {
 		if uVal > math.MaxInt64 {
 			return fmt.Errorf("unsigned value %d does not fit into int64 (overflow)", uVal)
 		}
-		if dt.Kind() == reflect.Interface && dv.NumMethod() == 0 {
-			dv.Set(reflect.New(int64Type))
-		}
 		dv.Set(reflect.ValueOf(int64(uVal)))
 		return nil
 	case reflect.Float32, reflect.Float64:
-		if dt.Kind() == reflect.Interface && dv.NumMethod() == 0 {
-			dv.Set(reflect.New(float64Type))
-		}
 		dv.Set(reflect.ValueOf(sv.Float()))
 		return nil
 	case reflect.Map:

vendor/k8s.io/apimachinery/pkg/runtime/embedded.go

@@ -134,9 +134,16 @@ func Convert_runtime_RawExtension_To_runtime_Object(in *RawExtension, out *Objec
 	return nil
 }
 
-func DefaultEmbeddedConversions() []interface{} {
-	return []interface{}{
-		Convert_runtime_Object_To_runtime_RawExtension,
-		Convert_runtime_RawExtension_To_runtime_Object,
+func RegisterEmbeddedConversions(s *Scheme) error {
+	if err := s.AddConversionFunc((*Object)(nil), (*RawExtension)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_runtime_Object_To_runtime_RawExtension(a.(*Object), b.(*RawExtension), scope)
+	}); err != nil {
+		return err
 	}
+	if err := s.AddConversionFunc((*RawExtension)(nil), (*Object)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_runtime_RawExtension_To_runtime_Object(a.(*RawExtension), b.(*Object), scope)
+	}); err != nil {
+		return err
+	}
+	return nil
 }

vendor/k8s.io/apimachinery/pkg/runtime/generated.pb.go

@@ -40,7 +40,7 @@ var _ = math.Inf
 // is compatible with the proto package it is being compiled against.
 // A compilation error at this line likely means your copy of the
 // proto package needs to be updated.
-const _ = proto.GoGoProtoPackageIsVersion2 // please upgrade the proto package
+const _ = proto.GoGoProtoPackageIsVersion3 // please upgrade the proto package
 
 func (m *RawExtension) Reset()      { *m = RawExtension{} }
 func (*RawExtension) ProtoMessage() {}
@@ -772,6 +772,7 @@ func (m *Unknown) Unmarshal(dAtA []byte) error {
 func skipGenerated(dAtA []byte) (n int, err error) {
 	l := len(dAtA)
 	iNdEx := 0
+	depth := 0
 	for iNdEx < l {
 		var wire uint64
 		for shift := uint(0); ; shift += 7 {
@@ -803,10 +804,8 @@ func skipGenerated(dAtA []byte) (n int, err error) {
 					break
 				}
 			}
-			return iNdEx, nil
 		case 1:
 			iNdEx += 8
-			return iNdEx, nil
 		case 2:
 			var length int
 			for shift := uint(0); ; shift += 7 {
@@ -827,55 +826,30 @@ func skipGenerated(dAtA []byte) (n int, err error) {
 				return 0, ErrInvalidLengthGenerated
 			}
 			iNdEx += length
-			if iNdEx < 0 {
-				return 0, ErrInvalidLengthGenerated
-			}
-			return iNdEx, nil
 		case 3:
-			for {
-				var innerWire uint64
-				var start int = iNdEx
-				for shift := uint(0); ; shift += 7 {
-					if shift >= 64 {
-						return 0, ErrIntOverflowGenerated
-					}
-					if iNdEx >= l {
-						return 0, io.ErrUnexpectedEOF
-					}
-					b := dAtA[iNdEx]
-					iNdEx++
-					innerWire |= (uint64(b) & 0x7F) << shift
-					if b < 0x80 {
-						break
-					}
-				}
-				innerWireType := int(innerWire & 0x7)
-				if innerWireType == 4 {
-					break
-				}
-				next, err := skipGenerated(dAtA[start:])
-				if err != nil {
-					return 0, err
-				}
-				iNdEx = start + next
-				if iNdEx < 0 {
-					return 0, ErrInvalidLengthGenerated
-				}
-			}
-			return iNdEx, nil
+			depth++
 		case 4:
-			return iNdEx, nil
+			if depth == 0 {
+				return 0, ErrUnexpectedEndOfGroupGenerated
+			}
+			depth--
 		case 5:
 			iNdEx += 4
-			return iNdEx, nil
 		default:
 			return 0, fmt.Errorf("proto: illegal wireType %d", wireType)
 		}
+		if iNdEx < 0 {
+			return 0, ErrInvalidLengthGenerated
+		}
+		if depth == 0 {
+			return iNdEx, nil
+		}
 	}
-	panic("unreachable")
+	return 0, io.ErrUnexpectedEOF
 }
 
 var (
-	ErrInvalidLengthGenerated = fmt.Errorf("proto: negative length found during unmarshaling")
-	ErrIntOverflowGenerated   = fmt.Errorf("proto: integer overflow")
+	ErrInvalidLengthGenerated        = fmt.Errorf("proto: negative length found during unmarshaling")
+	ErrIntOverflowGenerated          = fmt.Errorf("proto: integer overflow")
+	ErrUnexpectedEndOfGroupGenerated = fmt.Errorf("proto: unexpected end of group")
 )

vendor/k8s.io/apimachinery/pkg/runtime/schema/generated.pb.go

@@ -36,7 +36,7 @@ var _ = math.Inf
 // is compatible with the proto package it is being compiled against.
 // A compilation error at this line likely means your copy of the
 // proto package needs to be updated.
-const _ = proto.GoGoProtoPackageIsVersion2 // please upgrade the proto package
+const _ = proto.GoGoProtoPackageIsVersion3 // please upgrade the proto package
 
 func init() {
 	proto.RegisterFile("k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/runtime/schema/generated.proto", fileDescriptor_0462724132518e0d)

vendor/k8s.io/apimachinery/pkg/runtime/scheme.go

@@ -102,10 +102,10 @@ func NewScheme() *Scheme {
 	}
 	s.converter = conversion.NewConverter(s.nameFunc)
 
-	utilruntime.Must(s.AddConversionFuncs(DefaultEmbeddedConversions()...))
+	// Enable couple default conversions by default.
+	utilruntime.Must(RegisterEmbeddedConversions(s))
+	utilruntime.Must(RegisterStringConversions(s))
 
-	// Enable map[string][]string conversions by default
-	utilruntime.Must(s.AddConversionFuncs(DefaultStringConversions...))
 	utilruntime.Must(s.RegisterInputDefaults(&map[string][]string{}, JSONKeyMapper, conversion.AllowDifferentFieldTypeNames|conversion.IgnoreMissingFields))
 	utilruntime.Must(s.RegisterInputDefaults(&url.Values{}, JSONKeyMapper, conversion.AllowDifferentFieldTypeNames|conversion.IgnoreMissingFields))
 	return s
@@ -308,45 +308,6 @@ func (s *Scheme) AddIgnoredConversionType(from, to interface{}) error {
 	return s.converter.RegisterIgnoredConversion(from, to)
 }
 
-// AddConversionFuncs adds functions to the list of conversion functions. The given
-// functions should know how to convert between two of your API objects, or their
-// sub-objects. We deduce how to call these functions from the types of their two
-// parameters; see the comment for Converter.Register.
-//
-// Note that, if you need to copy sub-objects that didn't change, you can use the
-// conversion.Scope object that will be passed to your conversion function.
-// Additionally, all conversions started by Scheme will set the SrcVersion and
-// DestVersion fields on the Meta object. Example:
-//
-// s.AddConversionFuncs(
-//	func(in *InternalObject, out *ExternalObject, scope conversion.Scope) error {
-//		// You can depend on Meta() being non-nil, and this being set to
-//		// the source version, e.g., ""
-//		s.Meta().SrcVersion
-//		// You can depend on this being set to the destination version,
-//		// e.g., "v1".
-//		s.Meta().DestVersion
-//		// Call scope.Convert to copy sub-fields.
-//		s.Convert(&in.SubFieldThatMoved, &out.NewLocation.NewName, 0)
-//		return nil
-//	},
-// )
-//
-// (For more detail about conversion functions, see Converter.Register's comment.)
-//
-// Also note that the default behavior, if you don't add a conversion function, is to
-// sanely copy fields that have the same names and same type names. It's OK if the
-// destination type has extra fields, but it must not remove any. So you only need to
-// add conversion functions for things with changed/removed fields.
-func (s *Scheme) AddConversionFuncs(conversionFuncs ...interface{}) error {
-	for _, f := range conversionFuncs {
-		if err := s.converter.RegisterConversionFunc(f); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
 // AddConversionFunc registers a function that converts between a and b by passing objects of those
 // types to the provided function. The function *must* accept objects of a and b - this machinery will not enforce
 // any other guarantee.