mirror of https://github.com/prometheus/prometheus
57 lines
1.3 KiB
Go
57 lines
1.3 KiB
Go
/*
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Copyright 2014 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 util
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// StringFlag is a string flag compatible with flags and pflags that keeps track of whether it had a value supplied or not.
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type StringFlag struct {
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// If Set has been invoked this value is true
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provided bool
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// The exact value provided on the flag
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value string
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}
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func NewStringFlag(defaultVal string) StringFlag {
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return StringFlag{value: defaultVal}
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}
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func (f *StringFlag) Default(value string) {
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f.value = value
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}
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func (f StringFlag) String() string {
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return f.value
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}
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func (f StringFlag) Value() string {
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return f.value
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}
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func (f *StringFlag) Set(value string) error {
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f.value = value
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f.provided = true
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return nil
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}
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func (f StringFlag) Provided() bool {
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return f.provided
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}
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func (f *StringFlag) Type() string {
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return "string"
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}
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