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
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
package core
import (
"fmt"
"reflect"
"regexp"
"strings"
"github.com/MichaelMure/git-bug/cache"
"github.com/MichaelMure/git-bug/repository"
"github.com/pkg/errors"
)
var ErrImportNorSupported = errors.New("import is not supported")
var ErrExportNorSupported = errors.New("export is not supported")
var bridgeImpl map[string]reflect.Type
// Bridge is a wrapper around a BridgeImpl that will bind low-level
// implementation with utility code to provide high-level functions.
type Bridge struct {
Name string
repo *cache.RepoCache
impl BridgeImpl
conf Configuration
}
// Register will register a new BridgeImpl
func Register(impl BridgeImpl) {
if bridgeImpl == nil {
bridgeImpl = make(map[string]reflect.Type)
}
bridgeImpl[impl.Target()] = reflect.TypeOf(impl)
}
// Targets return all known bridge implementation target
func Targets() []string {
var result []string
for key := range bridgeImpl {
result = append(result, key)
}
return result
}
func NewBridge(repo *cache.RepoCache, target string, name string) (*Bridge, error) {
implType, ok := bridgeImpl[target]
if !ok {
return nil, fmt.Errorf("unknown bridge target %v", target)
}
impl := reflect.New(implType).Elem().Interface().(BridgeImpl)
bridge := &Bridge{
Name: name,
repo: repo,
impl: impl,
}
return bridge, nil
}
func ConfiguredBridges(repo repository.RepoCommon) ([]string, error) {
configs, err := repo.ReadConfigs("git-bug.")
if err != nil {
return nil, errors.Wrap(err, "can't read configured bridges")
}
re, err := regexp.Compile(`git-bug.([^\.]+\.[^\.]+)`)
if err != nil {
return nil, err
}
set := make(map[string]interface{})
for key := range configs {
res := re.FindStringSubmatch(key)
if res == nil {
continue
}
set[res[1]] = nil
}
result := make([]string, len(set))
i := 0
for key := range set {
result[i] = key
i++
}
return result, nil
}
func (b *Bridge) String() string {
var _type string
if b.impl.Importer() != nil && b.impl.Exporter() != nil {
_type = "import/export"
} else if b.impl.Importer() != nil {
_type = "import"
} else if b.impl.Exporter() != nil {
_type = "export"
} else {
panic("bad bridge impl, neither import nor export")
}
return fmt.Sprintf("%s.%s: %s", b.impl.Target(), b.Name, _type)
}
func (b *Bridge) Configure() error {
conf, err := b.impl.Configure(b.repo)
if err != nil {
return err
}
b.conf = conf
return b.storeConfig(conf)
}
func (b *Bridge) storeConfig(conf Configuration) error {
for key, val := range conf {
storeKey := fmt.Sprintf("git-bug.%s.%s.%s", b.impl.Target(), b.Name, key)
err := b.repo.StoreConfig(storeKey, val)
if err != nil {
return errors.Wrap(err, "error while storing bridge configuration")
}
}
return nil
}
func (b Bridge) getConfig() (Configuration, error) {
var err error
if b.conf == nil {
b.conf, err = b.loadConfig()
if err != nil {
return nil, err
}
}
return b.conf, nil
}
func (b Bridge) loadConfig() (Configuration, error) {
keyPrefix := fmt.Sprintf("git-bug.%s.%s.", b.impl.Target(), b.Name)
pairs, err := b.repo.ReadConfigs(keyPrefix)
if err != nil {
return nil, errors.Wrap(err, "error while reading bridge configuration")
}
result := make(Configuration, len(pairs))
for key, value := range pairs {
key := strings.TrimPrefix(key, keyPrefix)
result[key] = value
}
return result, nil
}
func (b Bridge) ImportAll() error {
importer := b.impl.Importer()
if importer == nil {
return ErrImportNorSupported
}
conf, err := b.getConfig()
if err != nil {
return err
}
return b.impl.Importer().ImportAll(b.repo, conf)
}
func (b Bridge) Import(id string) error {
importer := b.impl.Importer()
if importer == nil {
return ErrImportNorSupported
}
conf, err := b.getConfig()
if err != nil {
return err
}
return b.impl.Importer().Import(b.repo, conf, id)
}
func (b Bridge) ExportAll() error {
exporter := b.impl.Exporter()
if exporter == nil {
return ErrExportNorSupported
}
conf, err := b.getConfig()
if err != nil {
return err
}
return b.impl.Exporter().ExportAll(b.repo, conf)
}
func (b Bridge) Export(id string) error {
exporter := b.impl.Exporter()
if exporter == nil {
return ErrExportNorSupported
}
conf, err := b.getConfig()
if err != nil {
return err
}
return b.impl.Exporter().Export(b.repo, conf, id)
}
|
