// is not part of the directory's package.
	for _, dir := range dirs {
		name := dir.Name()
		if packageFile[name] {
			continue
		}

		if dir.IsDir() {
			continue
		}

		if base, found := strings.CutSuffix(name, "_test.go"); found {
			allRemove = append(allRemove, base+".test", base+".test.exe")
		}

	goroot_bootstrap := os.Getenv("GOROOT_BOOTSTRAP")
	if goroot_bootstrap == "" {
		home := os.Getenv("HOME")
		goroot_bootstrap = pathf("%s/go1.4", home)
		for _, d := range tryDirs {
			if p := pathf("%s/%s", home, d); isdir(p) {
				goroot_bootstrap = p
			}
		}
	}
	xprintf("Building Go toolchain1 using %s.\n", goroot_bootstrap)

	mkbuildcfg(pathf("%s/src/internal/buildcfg/zbootstrap.go", goroot))

func (fi headerFileInfo) Size() int64        { return fi.h.Size }
func (fi headerFileInfo) IsDir() bool        { return fi.Mode().IsDir() }
func (fi headerFileInfo) ModTime() time.Time { return fi.h.ModTime }
func (fi headerFileInfo) Sys() any           { return fi.h }

// Name returns the base name of the file.
func (fi headerFileInfo) Name() string {
	if fi.IsDir() {
		return path.Base(path.Clean(fi.h.Name))
	}
	return path.Base(fi.h.Name)

		case dir := <-dirCh:
			fi, err := os.Stat(dir)
			if os.IsNotExist(err) {
				// All good
				return
			}
			if err != nil {
				t.Fatal(err)
			}
			t.Errorf("directory %q still exists: %v, isDir=%v", dir, fi, fi.IsDir())
		default:
			if !t.Failed() {
				t.Fatal("never received dir channel")
			}
		}
	})

	dir := t.TempDir()
	if dir == "" {
		t.Fatal("expected dir")
	}

		filenames = []string{filepath.FromSlash("testdata/manual.go")}
	}

	info, err := os.Stat(filenames[0])
	if err != nil {
		t.Fatalf("TestManual: %v", err)
	}

	DefPredeclaredTestFuncs()
	if info.IsDir() {
		if len(filenames) > 1 {
			t.Fatal("TestManual: must have only one directory argument")
		}
		testDir(t, filenames[0], true)
	} else {
		testPkg(t, filenames, true)
	}
}

// it exists.
func debugLogFile(debugDir string) (*os.File, error) {
	fd, err := os.Stat(debugDir)
	if os.IsNotExist(err) {
		return nil, nil
	}
	if err != nil {
		return nil, err
	}
	if !fd.IsDir() {
		return nil, fmt.Errorf("debug path %q is not a directory", debugDir)
	}
	info, ok := debug.ReadBuildInfo()
	if !ok {
		return nil, fmt.Errorf("no build info")
	}

	files, err := h.osInterface.ReadDir(dirname)
	if err != nil {
		return nil, err
	}
	results := metricsProviderByPath{}
	for _, f := range files {
		if f.IsDir() {
			continue
		}
		// Only include *files* under pod log directory.
		fpath := filepath.Join(dirname, f.Name())
		results[fpath] = volume.NewMetricsDu(fpath)
	}
	return results, nil
}

				}
				found = true
				lstat, err := Lstat(dir + "/" + m)
				if err != nil {
					t.Fatal(err)
				}
				if n.IsDir() != lstat.IsDir() {
					t.Errorf("%s: IsDir=%v, want %v", m, n.IsDir(), lstat.IsDir())
				}
				if n.Type() != lstat.Mode().Type() {
					t.Errorf("%s: IsDir=%v, want %v", m, n.Type(), lstat.Mode().Type())
				}
				info, err := n.Info()
				if err != nil {

			}
			r = os.Stdin
			readers = append(readers, local.ReaderSource{Name: f, Reader: r})
			continue
		}

		fi, err := os.Stat(f)
		if err != nil {
			return nil, err
		}

		if fi.IsDir() {
			dirReaders, err := gatherFilesInDirectory(cmd, f)
			if err != nil {
				return nil, err
			}
			readers = append(readers, dirReaders...)
		} else {
			if !isValidFile(f) {

	if err != nil {
		// pkgdir might not be a directory. give up on hashing.
		return cache.ActionID{}, ErrNotIndexed
	}
	cutoff := time.Now().Add(-modTimeCutoff)
	for _, info := range entries {
		if info.IsDir() {
			continue
		}

		if !info.Mode().IsRegular() {
			return cache.ActionID{}, ErrNotIndexed
		}
		// To avoid problems for very recent files where a new