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patch: allow --local to use structs for strategic merge, warn about unknown objects

pull/6/head
Jordan Liggitt 2017-01-25 21:21:47 -05:00
parent 424dac921f
commit c317f92990
No known key found for this signature in database
GPG Key ID: 24E7ADF9A3B42012
1 changed files with 10 additions and 8 deletions
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18
pkg/kubectl/cmd/patch.go
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@ -27,6 +27,7 @@ import (
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/types"
"k8s.io/apimachinery/pkg/util/json"
"k8s.io/apimachinery/pkg/util/sets"
@ -212,19 +213,15 @@ func RunPatch(f cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []strin
count++
patchedObj, err := api.Scheme.DeepCopy(info.VersionedObject)
originalObjJS, err := runtime.Encode(unstructured.UnstructuredJSONScheme, info.VersionedObject)
if err != nil {
return err
}
originalObjJS, err := runtime.Encode(api.Codecs.LegacyCodec(mapping.GroupVersionKind.GroupVersion()), info.VersionedObject.(runtime.Object))
originalPatchedObjJS, err := getPatchedJSON(patchType, originalObjJS, patchBytes, mapping.GroupVersionKind, api.Scheme)
if err != nil {
return err
}
originalPatchedObjJS, err := getPatchedJSON(patchType, originalObjJS, patchBytes, patchedObj.(runtime.Object))
if err != nil {
return err
}
targetObj, err := runtime.Decode(api.Codecs.UniversalDecoder(), originalPatchedObjJS)
targetObj, err := runtime.Decode(unstructured.UnstructuredJSONScheme, originalPatchedObjJS)
if err != nil {
return err
}
@ -252,7 +249,7 @@ func RunPatch(f cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []strin
return nil
}
func getPatchedJSON(patchType types.PatchType, originalJS, patchJS []byte, obj runtime.Object) ([]byte, error) {
func getPatchedJSON(patchType types.PatchType, originalJS, patchJS []byte, gvk schema.GroupVersionKind, creater runtime.ObjectCreater) ([]byte, error) {
switch patchType {
case types.JSONPatchType:
patchObj, err := jsonpatch.DecodePatch(patchJS)
@ -265,6 +262,11 @@ func getPatchedJSON(patchType types.PatchType, originalJS, patchJS []byte, obj r
return jsonpatch.MergePatch(originalJS, patchJS)
case types.StrategicMergePatchType:
// get a typed object for this GVK if we need to apply a strategic merge patch
obj, err := creater.New(gvk)
if err != nil {
return nil, fmt.Errorf("cannot apply strategic merge patch for %s locally, try --type merge", gvk.String())
}
return strategicpatch.StrategicMergePatch(originalJS, patchJS, obj)
default: