-
Notifications
You must be signed in to change notification settings - Fork 110
/
repo.go
152 lines (124 loc) · 2.55 KB
/
repo.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
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
package gxutil
import (
"encoding/json"
"errors"
"os"
"path/filepath"
"strings"
hd "github.com/mitchellh/go-homedir"
. "github.com/whyrusleeping/stump"
)
func (pm *PM) FetchRepo(rpath string, usecache bool) (map[string]string, error) {
if strings.HasPrefix(rpath, "/ipns/") {
p, err := pm.ResolveRepoName(rpath, usecache)
if err != nil {
return nil, err
}
rpath = p
}
links, err := pm.Shell().List(rpath)
if err != nil {
return nil, err
}
out := make(map[string]string)
for _, l := range links {
out[l.Name] = l.Hash
}
return out, nil
}
var ErrNotFound = errors.New("cache miss")
// TODO: once on ipfs 0.4.0, use the files api
func (pm *PM) ResolveRepoName(name string, usecache bool) (string, error) {
if usecache {
cache, ok, err := CheckCacheFile(name)
if err != nil {
return "", err
}
if ok {
return cache, nil
}
}
out, err := pm.Shell().ResolvePath(name)
if err != nil {
Error("error from resolve path", name)
return "", err
}
err = pm.cacheSet(name, out)
if err != nil {
return "", err
}
return out, nil
}
func CheckCacheFile(name string) (string, bool, error) {
home, err := hd.Dir()
if err != nil {
return "", false, err
}
p := filepath.Join(home, ".gxcache")
fi, err := os.Open(p)
if err != nil {
if !os.IsNotExist(err) {
return "", false, err
}
}
defer fi.Close()
cache := make(map[string]string)
err = json.NewDecoder(fi).Decode(&cache)
if err != nil {
return "", false, err
}
v, ok := cache[name]
if ok {
return v, true, nil
}
return "", false, nil
}
// TODO: think about moving gx global files into a .config/local type thing
func (pm *PM) cacheSet(name, resolved string) error {
home, err := hd.Dir()
if err != nil {
return err
}
p := filepath.Join(home, ".gxcache")
_, err = os.Stat(p)
if err != nil {
if !os.IsNotExist(err) {
return err
}
}
cache := make(map[string]string)
if err == nil { // if the file already exists
fi, err := os.Open(p)
if err != nil {
return err
}
err = json.NewDecoder(fi).Decode(&cache)
if err != nil {
return err
}
fi.Close()
}
cache[name] = resolved
fi, err := os.Create(p)
if err != nil {
return err
}
err = json.NewEncoder(fi).Encode(cache)
if err != nil {
return err
}
return fi.Close()
}
func (pm *PM) QueryRepos(query string) (map[string]string, error) {
out := make(map[string]string)
for name, rpath := range pm.cfg.GetRepos() {
repo, err := pm.FetchRepo(rpath, true)
if err != nil {
return nil, err
}
if val, ok := repo[query]; ok {
out[name] = val
}
}
return out, nil
}