1  // Copyright 2016 The Prometheus Authors
 2  // Licensed under the Apache License, Version 2.0 (the "License");
 3  // you may not use this file except in compliance with the License.
 4  // You may obtain a copy of the License at
 5  //
 6  // http://www.apache.org/licenses/LICENSE-2.0
 7  //
 8  // Unless required by applicable law or agreed to in writing, software
 9  // distributed under the License is distributed on an "AS IS" BASIS,
10  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
11  // See the License for the specific language governing permissions and
12  // limitations under the License.
13  
14  // This package no longer handles safe yaml parsing. In order to
15  // ensure correct yaml unmarshalling, use "yaml.UnmarshalStrict()".
16  
17  package config
18  
19  // Secret special type for storing secrets.
20  type Secret string
21  
22  // MarshalYAML implements the yaml.Marshaler interface for Secrets.
23  func (s Secret) MarshalYAML() (interface{}, error) {
24  	if s != "" {
25  		return "<secret>", nil
26  	}
27  	return nil, nil
28  }
29  
30  //UnmarshalYAML implements the yaml.Unmarshaler interface for Secrets.
31  func (s *Secret) UnmarshalYAML(unmarshal func(interface{}) error) error {
32  	type plain Secret
33  	return unmarshal((*plain)(s))
34  }