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// Copyright 2022 The Kubernetes Authors.
// SPDX-License-Identifier: Apache-2.0
package utils
import (
"fmt"
"strings"
"sigs.k8s.io/kustomize/kyaml/resid"
"sigs.k8s.io/kustomize/kyaml/yaml"
)
// MakeResIds returns all of an RNode's current and previous Ids
func MakeResIds(n *yaml.RNode) ([]resid.ResId, error) {
var result []resid.ResId
apiVersion := n.Field(yaml.APIVersionField)
var group, version string
if apiVersion != nil {
group, version = resid.ParseGroupVersion(yaml.GetValue(apiVersion.Value))
}
result = append(result, resid.NewResIdWithNamespace(
resid.Gvk{Group: group, Version: version, Kind: n.GetKind()}, n.GetName(), n.GetNamespace()),
)
prevIds, err := PrevIds(n)
if err != nil {
return nil, err
}
result = append(result, prevIds...)
return result, nil
}
// PrevIds returns all of an RNode's previous Ids
func PrevIds(n *yaml.RNode) ([]resid.ResId, error) {
var ids []resid.ResId
// TODO: merge previous names and namespaces into one list of
// pairs on one annotation so there is no chance of error
annotations := n.GetAnnotations(
BuildAnnotationPreviousNames,
BuildAnnotationPreviousNamespaces,
BuildAnnotationPreviousKinds)
if _, ok := annotations[BuildAnnotationPreviousNames]; !ok {
return nil, nil
}
names := strings.Split(annotations[BuildAnnotationPreviousNames], ",")
ns := strings.Split(annotations[BuildAnnotationPreviousNamespaces], ",")
kinds := strings.Split(annotations[BuildAnnotationPreviousKinds], ",")
// This should never happen
if len(names) != len(ns) || len(names) != len(kinds) {
return nil, fmt.Errorf(
"number of previous names, " +
"number of previous namespaces, " +
"number of previous kinds not equal")
}
apiVersion := n.GetApiVersion()
group, version := resid.ParseGroupVersion(apiVersion)
ids = make([]resid.ResId, 0, len(names))
for i := range names {
gvk := resid.Gvk{
Group: group,
Version: version,
Kind: kinds[i],
}
ids = append(ids, resid.NewResIdWithNamespace(
gvk, names[i], ns[i]))
}
return ids, nil
}
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