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Use builder for creating the destroyer
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| // Copyright 2022 The Kubernetes Authors. | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
|
|
||
| package apply | ||
|
|
||
| import ( | ||
| "errors" | ||
| "fmt" | ||
|
|
||
| "k8s.io/apimachinery/pkg/api/meta" | ||
| "k8s.io/cli-runtime/pkg/resource" | ||
| "k8s.io/client-go/discovery" | ||
| "k8s.io/client-go/dynamic" | ||
| "k8s.io/client-go/rest" | ||
| "k8s.io/kubectl/pkg/cmd/util" | ||
| "sigs.k8s.io/cli-utils/pkg/inventory" | ||
| "sigs.k8s.io/cli-utils/pkg/kstatus/watcher" | ||
| ) | ||
|
|
||
| type commonBuilder struct { | ||
| // factory is only used to retrieve things that have not been provided explicitly. | ||
| factory util.Factory | ||
| invClient inventory.Client | ||
| client dynamic.Interface | ||
| discoClient discovery.CachedDiscoveryInterface | ||
| mapper meta.RESTMapper | ||
| restConfig *rest.Config | ||
| unstructuredClientForMapping func(*meta.RESTMapping) (resource.RESTClient, error) | ||
| statusWatcher watcher.StatusWatcher | ||
| } | ||
|
|
||
| func (cb *commonBuilder) finalize() (*commonBuilder, error) { | ||
| cx := *cb // make a copy before mutating any fields. Shallow copy is good enough. | ||
| var err error | ||
| if cx.invClient == nil { | ||
| return nil, errors.New("inventory client must be provided") | ||
| } | ||
| if cx.client == nil { | ||
| if cx.factory == nil { | ||
| return nil, fmt.Errorf("a factory must be provided or all other options: %v", err) | ||
| } | ||
| cx.client, err = cx.factory.DynamicClient() | ||
| if err != nil { | ||
| return nil, fmt.Errorf("error getting dynamic client: %v", err) | ||
| } | ||
| } | ||
| if cx.discoClient == nil { | ||
| if cx.factory == nil { | ||
| return nil, fmt.Errorf("a factory must be provided or all other options: %v", err) | ||
| } | ||
| cx.discoClient, err = cx.factory.ToDiscoveryClient() | ||
| if err != nil { | ||
| return nil, fmt.Errorf("error getting discovery client: %v", err) | ||
| } | ||
| } | ||
| if cx.mapper == nil { | ||
| if cx.factory == nil { | ||
| return nil, fmt.Errorf("a factory must be provided or all other options: %v", err) | ||
| } | ||
| cx.mapper, err = cx.factory.ToRESTMapper() | ||
| if err != nil { | ||
| return nil, fmt.Errorf("error getting rest mapper: %v", err) | ||
| } | ||
| } | ||
| if cx.restConfig == nil { | ||
| if cx.factory == nil { | ||
| return nil, fmt.Errorf("a factory must be provided or all other options: %v", err) | ||
| } | ||
| cx.restConfig, err = cx.factory.ToRESTConfig() | ||
| if err != nil { | ||
| return nil, fmt.Errorf("error getting rest config: %v", err) | ||
| } | ||
| } | ||
| if cx.unstructuredClientForMapping == nil { | ||
| if cx.factory == nil { | ||
| return nil, fmt.Errorf("a factory must be provided or all other options: %v", err) | ||
| } | ||
| cx.unstructuredClientForMapping = cx.factory.UnstructuredClientForMapping | ||
| } | ||
| if cx.statusWatcher == nil { | ||
| cx.statusWatcher = watcher.NewDefaultStatusWatcher(cx.client, cx.mapper) | ||
| } | ||
| return &cx, nil | ||
| } |
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