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pkg/config/dynamic/plugins.go
77 строк
2 KB
Ludovic Fernandez
fix: DeepCopy of PluginConf
17 апр 2023, 18:22
Не верифицирован
17 апр 2023, 18:22
5635687
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package dynamic import ( "encoding/json" "fmt" "reflect" ) // +k8s:deepcopy-gen=false // PluginConf holds the plugin configuration. type PluginConf map[string]any // DeepCopyInto is a deepcopy function, copying the receiver, writing into out. in must be non-nil. func (in *PluginConf) DeepCopyInto(out *PluginConf) { if in == nil { *out = nil } else { *out = deepCopyJSON(*in) } } // DeepCopy is a deepcopy function, copying the receiver, creating a new PluginConf. func (in *PluginConf) DeepCopy() *PluginConf { if in == nil { return nil } out := new(PluginConf) in.DeepCopyInto(out) return out } // inspired by https://github.com/kubernetes/apimachinery/blob/53ecdf01b997ca93c7db7615dfe7b27ad8391983/pkg/runtime/converter.go#L607 func deepCopyJSON(x map[string]any) map[string]any { return deepCopyJSONValue(x).(map[string]any) } func deepCopyJSONValue(x any) any { switch x := x.(type) { case map[string]any: if x == nil { // Typed nil - an any that contains a type map[string]any with a value of nil return x } clone := make(map[string]any, len(x)) for k, v := range x { clone[k] = deepCopyJSONValue(v) } return clone case []any: if x == nil { // Typed nil - an any that contains a type []any with a value of nil return x } clone := make([]any, len(x)) for i, v := range x { clone[i] = deepCopyJSONValue(v) } return clone case string, int64, bool, float64, nil, json.Number: return x default: v := reflect.ValueOf(x) if v.NumMethod() == 0 { panic(fmt.Errorf("cannot deep copy %T", x)) } method := v.MethodByName("DeepCopy") if method.Kind() == reflect.Invalid { panic(fmt.Errorf("cannot deep copy %T", x)) } call := method.Call(nil) return call[0].Interface() } }