File: flag_slice_value.go

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golang-github-hashicorp-serf 0.8.1%2Bgit20180508.80ab4877~ds-1
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package agent

import "strings"

// AppendSliceValue implements the flag.Value interface and allows multiple
// calls to the same variable to append a list.
type AppendSliceValue []string

func (s *AppendSliceValue) String() string {
	return strings.Join(*s, ",")
}

func (s *AppendSliceValue) Set(value string) error {
	if *s == nil {
		*s = make([]string, 0, 1)
	}

	*s = append(*s, value)
	return nil
}