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Update args.go

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ningmingxiao 2022-03-09 10:21:27 +08:00 • committed by GitHub
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args.go
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@ -66,6 +66,16 @@ func MinimumNArgs(n int) PositionalArgs {
} }
} }
// MinimumNArgsCustomError returns an error if there is not at least N args.
func MinimumNArgsCustomError(n int,custom string) PositionalArgs {
return func(cmd *Command, args []string) error {
if len(args) < n {
return fmt.Errorf("requires at least %d arg(s), only received %d,%s", n, len(args),custom)
}
return nil
}
}
// MaximumNArgs returns an error if there are more than N args. // MaximumNArgs returns an error if there are more than N args.
func MaximumNArgs(n int) PositionalArgs { func MaximumNArgs(n int) PositionalArgs {
return func(cmd *Command, args []string) error { return func(cmd *Command, args []string) error {