| // Copyright 2015 The LUCI Authors. All rights reserved. |
| // Use of this source code is governed under the Apache License, Version 2.0 |
| // that can be found in the LICENSE file. |
| |
| package apigen |
| |
| import ( |
| "errors" |
| "flag" |
| "strings" |
| ) |
| |
| // apiWhitelist is a flag.Value type that appends to the list on add. |
| type apiWhitelist []string |
| |
| var _ flag.Value = (*apiWhitelist)(nil) |
| |
| func (w *apiWhitelist) String() string { |
| if *w == nil { |
| return "" |
| } |
| return strings.Join(*w, ",") |
| } |
| |
| func (w *apiWhitelist) Set(s string) error { |
| if len(s) == 0 { |
| return errors.New("cannot whitelist empty string") |
| } |
| |
| *w = append(*w, s) |
| return nil |
| } |
