moby--moby/pkg/system/utimes_unix.go

// +build linux freebsd

package system // import "github.com/docker/docker/pkg/system"

import (
	"syscall"

	"golang.org/x/sys/unix"
)

// LUtimesNano is used to change access and modification time of the specified path.
// It's used for symbol link file because unix.UtimesNano doesn't support a NOFOLLOW flag atm.
func LUtimesNano(path string, ts []syscall.Timespec) error {
	uts := []unix.Timespec{
		unix.NsecToTimespec(syscall.TimespecToNsec(ts[0])),
		unix.NsecToTimespec(syscall.TimespecToNsec(ts[1])),
	}
	err := unix.UtimesNanoAt(unix.AT_FDCWD, path, uts, unix.AT_SYMLINK_NOFOLLOW)
	if err != nil && err != unix.ENOSYS {
		return err
	}

	return nil
}