kubernetes/staging/src/k8s.io/apimachinery/pkg/util/managedfields/scalehandler.go

var scaleGroupVersion …

var replicasPathInScale …

type ResourcePathMappings …

type ScaleHandler …

// NewScaleHandler creates a new ScaleHandler
func NewScaleHandler(parentEntries []metav1.ManagedFieldsEntry, groupVersion schema.GroupVersion, mappings ResourcePathMappings) *ScaleHandler { … }

// ToSubresource filter the managed fields of the main resource and convert
// them so that they can be handled by scale.
// For the managed fields that have a replicas path it performs two changes:
//  1. APIVersion is changed to the APIVersion of the scale subresource
//  2. Replicas path of the main resource is transformed to the replicas path of
//     the scale subresource
func (h *ScaleHandler) ToSubresource() ([]metav1.ManagedFieldsEntry, error) { … }

// ToParent merges `scaleEntries` with the entries of the main resource and
// transforms them accordingly
func (h *ScaleHandler) ToParent(scaleEntries []metav1.ManagedFieldsEntry) ([]metav1.ManagedFieldsEntry, error) { … }

func managedFieldsEntries(entries internal.ManagedInterface) ([]metav1.ManagedFieldsEntry, error) { … }