/
local_store.go
80 lines (67 loc) · 1.71 KB
/
local_store.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
// Copyright 2018 SHIFT72
//
// 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 sync
import (
"crypto/md5"
"fmt"
"io"
"os"
"path/filepath"
)
// LocalStore -
type LocalStore struct {
config Config
}
// NewLocalStore - create a new store
func NewLocalStore(config Config) (*LocalStore, error) {
return &LocalStore{
config: config,
}, nil
}
// List - list the local files and their hashes
func (store *LocalStore) List() (FileRefCollection, error) {
// get the current wd
wd, err := os.Getwd()
if err != nil {
return nil, err
}
// change to the search dir
err = os.Chdir(store.config.FileRootPath)
if err != nil {
return nil, err
}
defer os.Chdir(wd)
var fileList []FileRef
err = filepath.Walk(".", func(path string, f os.FileInfo, err error) error {
if !f.IsDir() {
fileList = append(fileList, calcMd5(store.config.FileRootPath, path))
}
return nil
})
return fileList, err
}
func calcMd5(rootPath, filePath string) FileRef {
f, err := os.Open(filePath)
if err != nil {
log.Fatal(err)
}
defer f.Close()
h := md5.New()
if _, err := io.Copy(h, f); err != nil {
log.Fatal(err)
}
return FileRef{
path: filePath,
hash: fmt.Sprintf("%x", h.Sum(nil))}
}