mirrored from https://chromium.googlesource.com/infra/luci/luci-go
/
apiWhitelist.go
42 lines (35 loc) · 1.03 KB
/
apiWhitelist.go
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// Copyright 2015 The LUCI Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
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
}