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
|
package fsutil
import (
"os"
"path/filepath"
"runtime"
"github.com/pkg/errors"
"github.com/tonistiigi/fsutil/types"
)
// constructs a Stat object. path is where the path can be found right
// now, relpath is the desired path to be recorded in the stat (so
// relative to whatever base dir is relevant). fi is the os.Stat
// info. inodemap is used to calculate hardlinks over a series of
// mkstat calls and maps inode to the canonical (aka "first") path for
// a set of hardlinks to that inode.
func mkstat(path, relpath string, fi os.FileInfo, inodemap map[uint64]string) (*types.Stat, error) {
relpath = filepath.ToSlash(relpath)
stat := &types.Stat{
Path: relpath,
Mode: uint32(fi.Mode()),
ModTime: fi.ModTime().UnixNano(),
}
setUnixOpt(fi, stat, relpath, inodemap)
if !fi.IsDir() {
stat.Size_ = fi.Size()
if fi.Mode()&os.ModeSymlink != 0 {
link, err := os.Readlink(path)
if err != nil {
return nil, errors.Wrapf(err, "failed to readlink %s", path)
}
stat.Linkname = link
}
}
if err := loadXattr(path, stat); err != nil {
return nil, errors.Wrapf(err, "failed to xattr %s", relpath)
}
if runtime.GOOS == "windows" {
permPart := stat.Mode & uint32(os.ModePerm)
noPermPart := stat.Mode &^ uint32(os.ModePerm)
// Add the x bit: make everything +x from windows
permPart |= 0111
permPart &= 0755
stat.Mode = noPermPart | permPart
}
// Clear the socket bit since archive/tar.FileInfoHeader does not handle it
stat.Mode &^= uint32(os.ModeSocket)
return stat, nil
}
func Stat(path string) (*types.Stat, error) {
fi, err := os.Lstat(path)
if err != nil {
return nil, errors.Wrap(err, "os stat")
}
return mkstat(path, filepath.Base(path), fi, nil)
}
|
