61 lines
1.2 KiB
Go
61 lines
1.2 KiB
Go
/*
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Copyright 2017 the Velero contributors.
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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 flag
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import "strconv"
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type OptionalBool struct {
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Value *bool
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}
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func NewOptionalBool(defaultValue *bool) OptionalBool {
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return OptionalBool{
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Value: defaultValue,
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}
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}
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// String returns a string representation of the
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// enum flag.
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func (f *OptionalBool) String() string {
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switch f.Value {
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case nil:
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return "<nil>"
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default:
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return strconv.FormatBool(*f.Value)
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}
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}
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func (f *OptionalBool) Set(val string) error {
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if val == "" {
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f.Value = nil
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return nil
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}
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parsed, err := strconv.ParseBool(val)
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if err != nil {
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return err
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}
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f.Value = &parsed
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return nil
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}
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func (f *OptionalBool) Type() string {
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return "optionalBool"
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}
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