mirror of
https://github.com/Oxalide/vsphere-influxdb-go.git
synced 2023-10-10 13:36:51 +02:00
56 lines
1.3 KiB
Go
56 lines
1.3 KiB
Go
/*
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Copyright (c) 2015 VMware, Inc. All Rights Reserved.
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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 flags
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import (
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"flag"
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"fmt"
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"strconv"
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)
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type optionalBool struct {
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val **bool
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}
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func (b *optionalBool) Set(s string) error {
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v, err := strconv.ParseBool(s)
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*b.val = &v
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return err
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}
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func (b *optionalBool) Get() interface{} {
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if *b.val == nil {
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return nil
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}
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return **b.val
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}
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func (b *optionalBool) String() string {
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if b.val == nil || *b.val == nil {
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return "<nil>"
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}
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return fmt.Sprintf("%v", **b.val)
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}
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func (b *optionalBool) IsBoolFlag() bool { return true }
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// NewOptionalBool returns a flag.Value implementation where there is no default value.
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// This avoids sending a default value over the wire as using flag.BoolVar() would.
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func NewOptionalBool(v **bool) flag.Value {
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return &optionalBool{v}
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}
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