mirror of https://github.com/k3s-io/k3s
60 lines
1.3 KiB
Go
60 lines
1.3 KiB
Go
/*
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Copyright 2021 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 flag
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import (
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goflag "flag"
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"strings"
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"github.com/spf13/pflag"
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)
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// StringSlice implements goflag.Value and plfag.Value,
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// and allows set to be invoked repeatedly to accumulate values.
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type StringSlice struct {
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value *[]string
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changed bool
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}
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func NewStringSlice(s *[]string) *StringSlice {
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return &StringSlice{value: s}
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}
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var _ goflag.Value = &StringSlice{}
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var _ pflag.Value = &StringSlice{}
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func (s *StringSlice) String() string {
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if s == nil || s.value == nil {
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return ""
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}
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return strings.Join(*s.value, " ")
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}
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func (s *StringSlice) Set(val string) error {
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if s.value == nil || !s.changed {
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v := make([]string, 0)
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s.value = &v
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}
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*s.value = append(*s.value, val)
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s.changed = true
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return nil
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}
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func (StringSlice) Type() string {
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return "sliceString"
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}
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