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Merge pull request #62657 from matthyx/master
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>. Update all script shebangs to use /usr/bin/env interpreter instead of /bin/interpreter This is required to support systems where bash doesn't reside in /bin (such as NixOS, or the *BSD family) and allow users to specify a different interpreter version through $PATH manipulation. https://www.cyberciti.biz/tips/finding-bash-perl-python-portably-using-env.html ```release-note Use /usr/bin/env in all script shebangs to increase portability. ``` Kubernetes-commit: b5f61ac129019d314e473584c1491b7ca62144c7
This commit is contained in:
+4
-21
@@ -19,27 +19,25 @@ package meta
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import (
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"sync"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/schema"
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)
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// lazyObject defers loading the mapper and typer until necessary.
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type lazyObject struct {
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loader func() (RESTMapper, runtime.ObjectTyper, error)
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loader func() (RESTMapper, error)
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lock sync.Mutex
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loaded bool
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err error
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mapper RESTMapper
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typer runtime.ObjectTyper
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}
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// NewLazyObjectLoader handles unrecoverable errors when creating a RESTMapper / ObjectTyper by
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// returning those initialization errors when the interface methods are invoked. This defers the
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// initialization and any server calls until a client actually needs to perform the action.
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func NewLazyObjectLoader(fn func() (RESTMapper, runtime.ObjectTyper, error)) (RESTMapper, runtime.ObjectTyper) {
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func NewLazyRESTMapperLoader(fn func() (RESTMapper, error)) RESTMapper {
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obj := &lazyObject{loader: fn}
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return obj, obj
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return obj
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}
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// init lazily loads the mapper and typer, returning an error if initialization has failed.
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@@ -49,13 +47,12 @@ func (o *lazyObject) init() error {
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if o.loaded {
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return o.err
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}
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o.mapper, o.typer, o.err = o.loader()
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o.mapper, o.err = o.loader()
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o.loaded = true
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return o.err
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}
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var _ RESTMapper = &lazyObject{}
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var _ runtime.ObjectTyper = &lazyObject{}
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func (o *lazyObject) KindFor(resource schema.GroupVersionResource) (schema.GroupVersionKind, error) {
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if err := o.init(); err != nil {
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@@ -105,17 +102,3 @@ func (o *lazyObject) ResourceSingularizer(resource string) (singular string, err
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}
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return o.mapper.ResourceSingularizer(resource)
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}
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func (o *lazyObject) ObjectKinds(obj runtime.Object) ([]schema.GroupVersionKind, bool, error) {
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if err := o.init(); err != nil {
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return nil, false, err
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}
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return o.typer.ObjectKinds(obj)
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}
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func (o *lazyObject) Recognizes(gvk schema.GroupVersionKind) bool {
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if err := o.init(); err != nil {
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return false
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}
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return o.typer.Recognizes(gvk)
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}
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