//   - callback walkFunc is invoked on root directory after visiting children dirs and files
func walkDeep(root string, walkFunc filepath.WalkFunc) error {
	info, err := os.Lstat(root)
	if err != nil {
		return walkFunc(root, nil, err)
	}
	return walk(root, info, walkFunc)
}

func walk(path string, info os.FileInfo, walkFunc filepath.WalkFunc) error {
	if !info.IsDir() {

		}
	}

	// Parent now exists; invoke Mkdir and use its result.
	err = Mkdir(path, perm)
	if err != nil {
		// Handle arguments like "foo/." by
		// double-checking that directory doesn't exist.
		dir, err1 := Lstat(path)
		if err1 == nil && dir.IsDir() {
			return nil
		}
		return err
	}
	return nil
}

// RemoveAll removes path and any children it contains.
// It removes everything it can but returns the first error

}

func (c *nfsUnmounter) TearDownAt(dir string) error {
	// Use extensiveMountPointCheck to consult /proc/mounts. We can't use faster
	// IsLikelyNotMountPoint (lstat()), since there may be root_squash on the
	// NFS server and kubelet may not be able to do lstat/stat() there.
	forceUnmounter, ok := c.mounter.(mount.MounterForceUnmounter)
	if ok {
		klog.V(4).Infof("Using force unmounter interface")

)

const _UTIME_OMIT = unix.UTIME_OMIT

// fixLongPath is a noop on non-Windows platforms.
func fixLongPath(path string) string {
	return path
}

func rename(oldname, newname string) error {
	fi, err := Lstat(newname)
	if err == nil && fi.IsDir() {
		// There are two independent errors this function can return:
		// one for a bad oldname, and one for a bad newname.
		// At this point we've determined the newname is bad.

	readdirName readdirMode = iota
	readdirDirEntry
	readdirFileInfo
)

// Readdir reads the contents of the directory associated with file and
// returns a slice of up to n [FileInfo] values, as would be returned
// by [Lstat], in directory order. Subsequent calls on the same file will yield
// further FileInfos.
//
// If n > 0, Readdir returns at most n FileInfo structures. In this case, if

	byID   = "/dev/disk/by-id/"
)

func (handler *osIOHandler) ReadDir(dirname string) ([]os.FileInfo, error) {
	return ioutil.ReadDir(dirname)
}
func (handler *osIOHandler) Lstat(name string) (os.FileInfo, error) {
	return os.Lstat(name)
}
func (handler *osIOHandler) EvalSymlinks(path string) (string, error) {
	return filepath.EvalSymlinks(path)
}
func (handler *osIOHandler) WriteFile(filename string, data []byte, perm os.FileMode) error {

}

// DiskUsage gets disk usage of specified path.
func DiskUsage(path string) (UsageInfo, error) {
	var usage UsageInfo
	info, err := os.Lstat(path)
	if err != nil {
		return usage, err
	}

	usage.Bytes, err = diskUsage(path, info)
	return usage, err
}

func diskUsage(currPath string, info os.FileInfo) (int64, error) {
	var size int64

			continue
		}
		if !os.SameFile(fi, fi1) {
			t.Errorf("%q should point to %q", link, dir)
			continue
		}

		fi2, err := os.Lstat(link)
		if err != nil {
			t.Errorf("failed to lstat link %v: %v", link, err)
			continue
		}
		var wantType fs.FileMode
		if test.isMountPoint && winsymlink.Value() != "0" {

// File represents an open file descriptor.
//
// The methods of File are safe for concurrent use.
type File struct {
	*file // os specific
}

// A FileInfo describes a file and is returned by [Stat] and [Lstat].
type FileInfo = fs.FileInfo

// A FileMode represents a file's mode and permission bits.
// The bits have the same definition on all systems, so that
// information about files can be moved from one system

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"io"
	"os"
	"syscall"
)

func access(name string) error {
	_, err := os.Lstat(name)
	return err
}

func osMkdirAll(dirPath string, perm os.FileMode, _ string) error {
	// baseDir is not honored in plan9 and solaris platforms.
	return os.MkdirAll(dirPath, perm)
}