packer-cn/common/command/flag_slice_value.go

35 lines
773 B
Go

package command
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
}
// SliceValue implements the flag.Value interface and allows a list of
// strings to be given on the command line and properly parsed into a slice
// of strings internally.
type SliceValue []string
func (s *SliceValue) String() string {
return strings.Join(*s, ",")
}
func (s *SliceValue) Set(value string) error {
*s = strings.Split(value, ",")
return nil
}