peridot/vendor/k8s.io/apimachinery/pkg/util/managedfields/internal/versionconverter.go
Mustafa Gezen ad0f7a5305
Major upgrades
Upgrade to Go 1.20.5, Hydra v2 SDK, rules-go v0.44.2 (with proper resolves), protobuf v25.3 and mass upgrade of Go dependencies.
2024-03-17 08:06:08 +01:00

124 lines
3.7 KiB
Go

/*
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 internal
import (
"fmt"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"sigs.k8s.io/structured-merge-diff/v4/fieldpath"
"sigs.k8s.io/structured-merge-diff/v4/merge"
"sigs.k8s.io/structured-merge-diff/v4/typed"
)
// versionConverter is an implementation of
// sigs.k8s.io/structured-merge-diff/merge.Converter
type versionConverter struct {
typeConverter TypeConverter
objectConvertor runtime.ObjectConvertor
hubGetter func(from schema.GroupVersion) schema.GroupVersion
}
var _ merge.Converter = &versionConverter{}
// NewVersionConverter builds a VersionConverter from a TypeConverter and an ObjectConvertor.
func newVersionConverter(t TypeConverter, o runtime.ObjectConvertor, h schema.GroupVersion) merge.Converter {
return &versionConverter{
typeConverter: t,
objectConvertor: o,
hubGetter: func(from schema.GroupVersion) schema.GroupVersion {
return schema.GroupVersion{
Group: from.Group,
Version: h.Version,
}
},
}
}
// NewCRDVersionConverter builds a VersionConverter for CRDs from a TypeConverter and an ObjectConvertor.
func newCRDVersionConverter(t TypeConverter, o runtime.ObjectConvertor, h schema.GroupVersion) merge.Converter {
return &versionConverter{
typeConverter: t,
objectConvertor: o,
hubGetter: func(from schema.GroupVersion) schema.GroupVersion {
return h
},
}
}
// Convert implements sigs.k8s.io/structured-merge-diff/merge.Converter
func (v *versionConverter) Convert(object *typed.TypedValue, version fieldpath.APIVersion) (*typed.TypedValue, error) {
// Convert the smd typed value to a kubernetes object.
objectToConvert, err := v.typeConverter.TypedToObject(object)
if err != nil {
return object, err
}
// Parse the target groupVersion.
groupVersion, err := schema.ParseGroupVersion(string(version))
if err != nil {
return object, err
}
// If attempting to convert to the same version as we already have, just return it.
fromVersion := objectToConvert.GetObjectKind().GroupVersionKind().GroupVersion()
if fromVersion == groupVersion {
return object, nil
}
// Convert to internal
internalObject, err := v.objectConvertor.ConvertToVersion(objectToConvert, v.hubGetter(fromVersion))
if err != nil {
return object, err
}
// Convert the object into the target version
convertedObject, err := v.objectConvertor.ConvertToVersion(internalObject, groupVersion)
if err != nil {
return object, err
}
// Convert the object back to a smd typed value and return it.
return v.typeConverter.ObjectToTyped(convertedObject)
}
// IsMissingVersionError
func (v *versionConverter) IsMissingVersionError(err error) bool {
return runtime.IsNotRegisteredError(err) || isNoCorrespondingTypeError(err)
}
type noCorrespondingTypeErr struct {
gvk schema.GroupVersionKind
}
func NewNoCorrespondingTypeError(gvk schema.GroupVersionKind) error {
return &noCorrespondingTypeErr{gvk: gvk}
}
func (k *noCorrespondingTypeErr) Error() string {
return fmt.Sprintf("no corresponding type for %v", k.gvk)
}
func isNoCorrespondingTypeError(err error) bool {
if err == nil {
return false
}
_, ok := err.(*noCorrespondingTypeErr)
return ok
}