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
|
package main
import (
"io"
"log"
"os"
"path/filepath"
)
type FileMeta struct {
Size int64
Mode os.FileMode
Symlink string
}
type Manifest struct {
Files map[string]FileMeta
}
func initialSync(hostDir, dataDir string, stack *GitignoreStack, dryRun bool) (*Manifest, error) {
manifest := &Manifest{Files: make(map[string]FileMeta)}
err := filepath.Walk(hostDir, func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
relPath, err := filepath.Rel(hostDir, path)
if err != nil {
return err
}
if relPath == "." {
return nil
}
if isGitDir(relPath) {
if info.IsDir() {
return filepath.SkipDir
}
return nil
}
if info.IsDir() && hasGitignore(path) {
stack.Push(path)
}
if stack.IsIgnored(relPath) {
if info.IsDir() {
return filepath.SkipDir
}
return nil
}
destPath := filepath.Join(dataDir, relPath)
linkTarget := ""
if info.Mode()&os.ModeSymlink != 0 {
linkTarget, err = os.Readlink(path)
if err != nil {
return err
}
}
meta := FileMeta{
Size: info.Size(),
Mode: info.Mode(),
Symlink: linkTarget,
}
manifest.Files[relPath] = meta
if dryRun {
log.Printf("[dry-run] would sync: %s", relPath)
return nil
}
if info.IsDir() {
return os.MkdirAll(destPath, info.Mode())
}
if err := os.MkdirAll(filepath.Dir(destPath), 0755); err != nil {
return err
}
if linkTarget != "" {
return os.Symlink(linkTarget, destPath)
}
return copyFile(path, destPath, info.Mode())
})
return manifest, err
}
func copyFile(src, dst string, mode os.FileMode) error {
srcFile, err := os.Open(src)
if err != nil {
return err
}
defer srcFile.Close()
dstFile, err := os.OpenFile(dst, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, mode)
if err != nil {
return err
}
defer dstFile.Close()
_, err = io.Copy(dstFile, srcFile)
return err
}
|
