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
|
//go:build linux || darwin
package parse
import (
"fmt"
"os"
"path/filepath"
"github.com/containers/buildah/define"
"github.com/opencontainers/runc/libcontainer/devices"
)
func DeviceFromPath(device string) (define.ContainerDevices, error) {
var devs define.ContainerDevices
src, dst, permissions, err := Device(device)
if err != nil {
return nil, err
}
if linkTarget, err := os.Readlink(src); err == nil {
if filepath.IsAbs(linkTarget) {
src = linkTarget
} else {
src = filepath.Join(filepath.Dir(src), linkTarget)
}
}
srcInfo, err := os.Stat(src)
if err != nil {
return nil, fmt.Errorf("getting info of source device %s: %w", src, err)
}
if !srcInfo.IsDir() {
dev, err := devices.DeviceFromPath(src, permissions)
if err != nil {
return nil, fmt.Errorf("%s is not a valid device: %w", src, err)
}
dev.Path = dst
device := define.BuildahDevice{Device: *dev, Source: src, Destination: dst}
devs = append(devs, device)
return devs, nil
}
// If source device is a directory
srcDevices, err := devices.GetDevices(src)
if err != nil {
return nil, fmt.Errorf("getting source devices from directory %s: %w", src, err)
}
for _, d := range srcDevices {
d.Path = filepath.Join(dst, filepath.Base(d.Path))
d.Permissions = devices.Permissions(permissions)
device := define.BuildahDevice{Device: *d, Source: src, Destination: dst}
devs = append(devs, device)
}
return devs, nil
}
|
