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parse_unix.go
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/
parse_unix.go
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// +build linux darwin
package parse
import (
"os"
"path/filepath"
"github.com/containers/storage/pkg/unshare"
"github.com/opencontainers/runc/libcontainer/configs"
"github.com/opencontainers/runc/libcontainer/devices"
"github.com/pkg/errors"
)
func DeviceFromPath(device string) ([]configs.Device, error) {
var devs []configs.Device
src, dst, permissions, err := Device(device)
if err != nil {
return nil, err
}
if unshare.IsRootless() && src != dst {
return nil, errors.Errorf("Renaming device %s to %s is not supported in rootless containers", src, dst)
}
srcInfo, err := os.Stat(src)
if err != nil {
return nil, errors.Wrapf(err, "error getting info of source device %s", src)
}
if !srcInfo.IsDir() {
dev, err := devices.DeviceFromPath(src, permissions)
if err != nil {
return nil, errors.Wrapf(err, "%s is not a valid device", src)
}
dev.Path = dst
devs = append(devs, *dev)
return devs, nil
}
// If source device is a directory
srcDevices, err := devices.GetDevices(src)
if err != nil {
return nil, errors.Wrapf(err, "error getting source devices from directory %s", src)
}
for _, d := range srcDevices {
d.Path = filepath.Join(dst, filepath.Base(d.Path))
d.Permissions = configs.DevicePermissions(permissions)
devs = append(devs, *d)
}
return devs, nil
}