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48 lines
1.2 KiB
Go
48 lines
1.2 KiB
Go
// source: https://github.com/spf13/pflag/blob/master/string_slice.go
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package conflag
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type stringSliceValue struct {
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value *[]string
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changed bool
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}
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func newStringSliceValue(val []string, p *[]string) *stringSliceValue {
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ssv := new(stringSliceValue)
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ssv.value = p
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*ssv.value = val
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return ssv
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}
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func (s *stringSliceValue) Set(val string) error {
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if !s.changed {
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*s.value = []string{val}
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s.changed = true
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} else {
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*s.value = append(*s.value, val)
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}
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return nil
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}
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func (s *stringSliceValue) Type() string {
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return "stringSlice"
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}
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func (s *stringSliceValue) String() string {
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return ""
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}
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// StringSliceVar defines a string flag with specified name, default value, and usage string.
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// The argument p points to a []string variable in which to store the value of the flag.
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func (c *Conflag) StringSliceVar(p *[]string, name string, value []string, usage string) {
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c.Var(newStringSliceValue(value, p), name, usage)
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}
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// StringSlice defines a string flag with specified name, default value, and usage string.
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// The return value is the address of a []string variable that stores the value of the flag.
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func (c *Conflag) StringSlice(name string, value []string, usage string) *[]string {
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p := []string{}
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c.StringSliceVar(&p, name, value, usage)
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return &p
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}
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