mirror of https://github.com/docker/cli.git
50 lines
1.3 KiB
Go
50 lines
1.3 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package clientcmd
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// transformingStringValue implements pflag.Value to store string values,
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// allowing transforming them while being set
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type transformingStringValue struct {
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target *string
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transformer func(string) (string, error)
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}
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func newTransformingStringValue(val string, target *string, transformer func(string) (string, error)) *transformingStringValue {
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*target = val
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return &transformingStringValue{
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target: target,
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transformer: transformer,
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}
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}
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func (t *transformingStringValue) Set(val string) error {
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val, err := t.transformer(val)
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if err != nil {
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return err
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}
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*t.target = val
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return nil
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}
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func (t *transformingStringValue) Type() string {
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return "string"
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}
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func (t *transformingStringValue) String() string {
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return string(*t.target)
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}
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