// The only possible returned error is [path.ErrBadPattern], reporting that
// the pattern is malformed.
//
// If fs implements [GlobFS], Glob calls fs.Glob.
// Otherwise, Glob uses [ReadDir] to traverse the directory tree
// and look for matches for the pattern.
func Glob(fsys FS, pattern string) (matches []string, err error) {
	return globWithLimit(fsys, pattern, 0)
}

	defer unlock()

	return false, vcsErrorf("vcs %s: DescendsFrom: %w", r.cmd.vcs, errors.ErrUnsupported)
}

func (r *vcsRepo) ReadZip(ctx context.Context, rev, subdir string, maxSize int64) (zip io.ReadCloser, err error) {
	if r.cmd.readZip == nil && r.cmd.doReadZip == nil {
		return nil, vcsErrorf("vcs %s: ReadZip: %w", r.cmd.vcs, errors.ErrUnsupported)
	}

	unlock, err := r.mu.Lock()
	if err != nil {
		return nil, err
	}

	// Prefer to use ReadDir instead of Readdir,
	// because the former doesn't require calling
	// Stat on every entry of a directory on Unix.
	var dirs anyDirs
	var err error
	if d, ok := f.(fs.ReadDirFile); ok {
		var list dirEntryDirs
		list, err = d.ReadDir(-1)
		dirs = list
	} else {
		var list fileInfoDirs
		list, err = f.Readdir(-1)
		dirs = list
	}

	if err != nil {

	if err != nil {
		panic(err)
	}
	subFs, err = fs.Sub(subFs, "cgroupns")
	if err != nil {
		panic(err)
	}
	return &fakeFsWithFakeFds{ReadDirFS: subFs.(fs.ReadDirFS)}
}

type fakeFsWithFakeFds struct {
	fs.ReadDirFS
}
type fakeFileFakeFds struct {
	fs.File
	fd uintptr
}

func (f *fakeFileFakeFds) Fd() uintptr {
	return f.fd
}

// and uploading is supposed to be idempotent.)
func (u *uploader) findWork() work {
	localdir, uploaddir := u.dir.LocalDir(), u.dir.UploadDir()
	var ans work
	fis, err := os.ReadDir(localdir)
	if err != nil {
		u.logger.Printf("Could not find work: failed to read local dir %s: %v", localdir, err)
		return ans
	}

	mode, asof := u.dir.Mode()

	}
	return b, nil
}

// ReadDir reads the named directory, returning all its directory entries sorted
// by filename. Through this method, dirFS implements [io/fs.ReadDirFS].
func (dir dirFS) ReadDir(name string) ([]DirEntry, error) {
	fullname, err := dir.join(name)
	if err != nil {
		return nil, &PathError{Op: "readdir", Path: name, Err: err}
	}
	entries, err := ReadDir(fullname)
	if err != nil {

// license that can be found in the LICENSE file.

package poll

import (
	"syscall"
	_ "unsafe" // for go:linkname
)

// OpenDir returns a pointer to a DIR structure suitable for
// ReadDir. In case of an error, the name of the failed
// syscall is returned along with a syscall.Errno.
func (fd *FD) OpenDir() (uintptr, string, error) {
	// fdopendir(3) takes control of the file descriptor,
	// so use a dup.

	if parentdir == "" || base == "" {
		// skip os.Readdir test of files without directory or file name component,
		// such as directories with slash at the end or Windows device names.
		return
	}

	parent, err := os.Open(parentdir)
	if err != nil {
		t.Error(err)
		return
	}
	defer parent.Close()

	fis, err := parent.Readdir(-1)
	if err != nil {
		t.Error(err)
		return
	}

	"testing"
	"time"
)

func FuzzDead(f *testing.F) {
	go func() {
		c := filepath.Join(os.Getenv("GOCACHE"), "fuzz", "test", "FuzzDead")
		t := time.NewTicker(time.Second)
		for range t.C {
			files, _ := os.ReadDir(c)
			if len(files) > 0 {
				os.RemoveAll(c)
			}
		}
	}()

	f.Fuzz(func(t *testing.T, b []byte) {
		if len(b) == 8 &&
			b[0] == 'h' &&
			b[1] == 'e' &&
			b[2] == 'l' &&
			b[3] == 'l' &&

	}
	if checkFailed {
		return errors.New("We need to fix the above errors.")
	}
	return nil
}

func processFile(e2ePath string) error {
	regGoFile := regexp.MustCompile(`.*\.go`)

	files, err := os.ReadDir(e2ePath)
	if err != nil {
		return fmt.Errorf("Failed to read dir %s: %w", e2ePath, err)
	}
	for _, file := range files {
		if file.IsDir() {
			continue
		}
		if !regGoFile.MatchString(file.Name()) {