1package agent
2
3import (
4	"flag"
5	"strings"
6)
7
8// AppendSliceValue implements the flag.Value interface and allows multiple
9// calls to the same variable to append a list.
10type AppendSliceValue []string
11
12var _ flag.Value = new(AppendSliceValue)
13
14func (s *AppendSliceValue) String() string {
15	return strings.Join(*s, ",")
16}
17
18func (s *AppendSliceValue) Set(value string) error {
19	if *s == nil {
20		*s = make([]string, 0, 1)
21	}
22
23	*s = append(*s, value)
24	return nil
25}
26