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package utilities
import (
"flag"
"strings"
)
// flagInterface is an cut down interface to `flag`
type flagInterface interface {
Var(value flag.Value, name string, usage string)
}
// StringArrayFlag defines a flag with the specified name and usage string.
// The return value is the address of a `StringArrayFlags` variable that stores the repeated values of the flag.
func StringArrayFlag(f flagInterface, name string, usage string) *StringArrayFlags {
value := &StringArrayFlags{}
f.Var(value, name, usage)
return value
}
// StringArrayFlags is a wrapper of `[]string` to provider an interface for `flag.Var`
type StringArrayFlags []string
// String returns a string representation of `StringArrayFlags`
func (i *StringArrayFlags) String() string {
return strings.Join(*i, ",")
}
// Set appends a value to `StringArrayFlags`
func (i *StringArrayFlags) Set(value string) error {
*i = append(*i, value)
return nil
}
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