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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,117 @@ | ||
| /* | ||
| Copyright 2022 The Kubernetes Authors. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| package v1beta1 | ||
|
|
||
| import ( | ||
| "k8s.io/apimachinery/pkg/util/validation/field" | ||
| ) | ||
|
|
||
| const ( | ||
| unsetMessage = "field is immutable, unsetting is not allowed" | ||
| setMessage = "field is immutable, setting is not allowed" | ||
| immutableMessage = "field is immutable" | ||
| ) | ||
|
|
||
| func ensureStringSlicesAreEqual(a []string, b []string) bool { | ||
| if len(a) != len(b) { | ||
| return false | ||
| } | ||
|
|
||
| m := map[string]bool{} | ||
| for _, v := range a { | ||
| m[v] = true | ||
| } | ||
|
|
||
| for _, v := range b { | ||
| if _, ok := m[v]; !ok { | ||
| return false | ||
| } | ||
| } | ||
| return true | ||
| } | ||
|
|
||
| func validateBoolPtrImmutable(path *field.Path, oldVal, newVal *bool) *field.Error { | ||
| if oldVal != nil { | ||
| // Prevent modification if it was already set to some value | ||
| if newVal == nil { | ||
| // unsetting the field is not allowed | ||
| return field.Invalid(path, newVal, unsetMessage) | ||
| } | ||
| if *newVal != *oldVal { | ||
| // changing the field is not allowed | ||
| return field.Invalid(path, newVal, immutableMessage) | ||
| } | ||
| } else if newVal != nil { | ||
| return field.Invalid(path, newVal, setMessage) | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func validateStringImmutable(path *field.Path, oldVal, newVal string) *field.Error { | ||
| if oldVal != "" { | ||
| // Prevent modification if it was already set to some value | ||
| if newVal == "" { | ||
| // unsetting the field is not allowed | ||
| return field.Invalid(path, newVal, unsetMessage) | ||
| } | ||
| if newVal != oldVal { | ||
| // changing the field is not allowed | ||
| return field.Invalid(path, newVal, immutableMessage) | ||
| } | ||
| } else if newVal != "" { | ||
| return field.Invalid(path, newVal, setMessage) | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func validateStringPtrImmutable(path *field.Path, oldVal, newVal *string) *field.Error { | ||
| if oldVal != nil { | ||
| // Prevent modification if it was already set to some value | ||
| if newVal == nil { | ||
| // unsetting the field is not allowed | ||
| return field.Invalid(path, newVal, unsetMessage) | ||
| } | ||
| if *newVal != *oldVal { | ||
| // changing the field is not allowed | ||
| return field.Invalid(path, newVal, immutableMessage) | ||
| } | ||
| } else if newVal != nil { | ||
| return field.Invalid(path, newVal, setMessage) | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func validateInt32PtrImmutable(path *field.Path, oldVal, newVal *int32) *field.Error { | ||
| if oldVal != nil { | ||
| // Prevent modification if it was already set to some value | ||
| if newVal == nil { | ||
| // unsetting the field is not allowed | ||
| return field.Invalid(path, newVal, unsetMessage) | ||
| } | ||
| if *newVal != *oldVal { | ||
| // changing the field is not allowed | ||
| return field.Invalid(path, newVal, immutableMessage) | ||
| } | ||
| } else if newVal != nil { | ||
| return field.Invalid(path, newVal, setMessage) | ||
| } | ||
|
|
||
| return nil | ||
| } |