forked from pulumi/pulumi
/
key.go
129 lines (103 loc) · 2.91 KB
/
key.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
// Copyright 2016-2018, Pulumi Corporation.
//
// 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 config
import (
"encoding/json"
"strings"
"github.com/pkg/errors"
"github.com/pulumi/pulumi/pkg/tokens"
"github.com/pulumi/pulumi/pkg/util/contract"
)
type Key struct {
namespace string
name string
}
// MustMakeKey constructs a config.Key for a given namespace and name. The namespace may not contain a `:`
func MustMakeKey(namespace string, name string) Key {
contract.Requiref(!strings.Contains(":", namespace), "namespace", "may not contain a colon")
return Key{namespace: namespace, name: name}
}
func ParseKey(s string) (Key, error) {
mm, err := tokens.ParseModuleMember(s)
if err == nil {
return fromModuleMember(mm)
}
if idx := strings.Index(s, ":"); idx > -1 {
return Key{namespace: s[:idx], name: s[idx+1:]}, nil
}
return Key{}, errors.Errorf("could not parse %s as a configuration key", s)
}
func fromModuleMember(m tokens.ModuleMember) (Key, error) {
if m.Module().Name() != tokens.ModuleName("config") {
return Key{}, errors.Errorf("%s is not in config module", m)
}
return Key{
namespace: m.Module().Package().String(),
name: m.Name().String(),
}, nil
}
func (k Key) Namespace() string {
return k.namespace
}
func (k Key) Name() string {
return k.name
}
func (k Key) MarshalJSON() ([]byte, error) {
return json.Marshal(k.String())
}
func (k *Key) UnmarshalJSON(b []byte) error {
var s string
if err := json.Unmarshal(b, &s); err != nil {
return errors.Wrap(err, "could not unmarshal key")
}
pk, err := ParseKey(s)
if err != nil {
return err
}
k.namespace = pk.namespace
k.name = pk.name
return nil
}
func (k Key) MarshalYAML() (interface{}, error) {
return k.String(), nil
}
func (k *Key) UnmarshalYAML(unmarshal func(interface{}) error) error {
var s string
if err := unmarshal(&s); err != nil {
return errors.Wrap(err, "could not unmarshal key")
}
pk, err := ParseKey(s)
if err != nil {
return err
}
k.namespace = pk.namespace
k.name = pk.name
return nil
}
func (k Key) String() string {
return k.namespace + ":" + k.name
}
type KeyArray []Key
func (k KeyArray) Len() int {
return len(k)
}
func (k KeyArray) Less(i int, j int) bool {
if k[i].namespace != k[j].namespace {
return strings.Compare(k[i].namespace, k[j].namespace) == -1
}
return strings.Compare(k[i].name, k[j].name) == -1
}
func (k KeyArray) Swap(i int, j int) {
k[i], k[j] = k[j], k[i]
}