Example #1
0
func main() {
	for _, p := range os.Args[1:] {
		err := walk.Walk(p, func(path string, fi os.FileInfo, err error) error {
			if err != nil {
				fmt.Fprintf(os.Stderr, "%s: %v\n", path, err)
			} else {
				fmt.Println(path)
			}
			return nil
		})
		if err != nil {
			log.Fatal(err)
		}
	}
}
Example #2
0
func TestWalkFileError(t *testing.T) {
	td, err := ioutil.TempDir("", "walktest")
	if err != nil {
		t.Fatal(err)
	}
	defer os.RemoveAll(td)

	touch(t, filepath.Join(td, "foo"))
	touch(t, filepath.Join(td, "bar"))
	dir := filepath.Join(td, "dir")
	if err := os.MkdirAll(filepath.Join(td, "dir"), 0755); err != nil {
		t.Fatal(err)
	}
	touch(t, filepath.Join(dir, "baz"))
	touch(t, filepath.Join(dir, "stat-error"))
	defer func() {
		*walk.LstatP = os.Lstat
	}()
	statErr := errors.New("some stat error")
	*walk.LstatP = func(path string) (os.FileInfo, error) {
		if strings.HasSuffix(path, "stat-error") {
			return nil, statErr
		}
		return os.Lstat(path)
	}

	got := map[string]error{}
	err = walk.Walk(td, func(path string, fi os.FileInfo, err error) error {
		rel, _ := filepath.Rel(td, path)
		got[filepath.ToSlash(rel)] = err
		return nil
	})
	if err != nil {
		t.Errorf("Walk error: %v", err)
	}
	want := map[string]error{
		".":              nil,
		"foo":            nil,
		"bar":            nil,
		"dir":            nil,
		"dir/baz":        nil,
		"dir/stat-error": statErr,
	}
	if !reflect.DeepEqual(got, want) {
		t.Errorf("Walked %#v; want %#v", got, want)
	}
}
Example #3
0
func TestWalk(t *testing.T) {
	makeTree(t)
	errors := make([]error, 0, 10)
	clear := true
	markFn := func(path string, info os.FileInfo, err error) error {
		return mark(path, info, err, &errors, clear)
	}
	// Expect no errors.
	err := walk.Walk(tree.name, markFn)
	if err != nil {
		t.Fatalf("no error expected, found: %s", err)
	}
	if len(errors) != 0 {
		t.Fatalf("unexpected errors: %s", errors)
	}
	checkMarks(t, true)
	errors = errors[0:0]

	// Test permission errors.  Only possible if we're not root
	// and only on some file systems (AFS, FAT).  To avoid errors during
	// all.bash on those file systems, skip during go test -short.
	if os.Getuid() > 0 && !testing.Short() {
		// introduce 2 errors: chmod top-level directories to 0
		os.Chmod(filepath.Join(tree.name, tree.entries[1].name), 0)
		os.Chmod(filepath.Join(tree.name, tree.entries[3].name), 0)

		// 3) capture errors, expect two.
		// mark respective subtrees manually
		markTree(tree.entries[1])
		markTree(tree.entries[3])
		// correct double-marking of directory itself
		tree.entries[1].mark--
		tree.entries[3].mark--
		err := walk.Walk(tree.name, markFn)
		if err != nil {
			t.Fatalf("expected no error return from Walk, got %s", err)
		}
		if len(errors) != 2 {
			t.Errorf("expected 2 errors, got %d: %s", len(errors), errors)
		}
		// the inaccessible subtrees were marked manually
		checkMarks(t, true)
		errors = errors[0:0]

		// 4) capture errors, stop after first error.
		// mark respective subtrees manually
		markTree(tree.entries[1])
		markTree(tree.entries[3])
		// correct double-marking of directory itself
		tree.entries[1].mark--
		tree.entries[3].mark--
		clear = false // error will stop processing
		err = walk.Walk(tree.name, markFn)
		if err == nil {
			t.Fatalf("expected error return from Walk")
		}
		if len(errors) != 2 {
			t.Errorf("expected 2 errors, got %d: %s", len(errors), errors)
		}
		// the inaccessible subtrees were marked manually
		checkMarks(t, false)
		errors = errors[0:0]

		// restore permissions
		os.Chmod(filepath.Join(tree.name, tree.entries[1].name), 0770)
		os.Chmod(filepath.Join(tree.name, tree.entries[3].name), 0770)
	}

	// cleanup
	if err := os.RemoveAll(tree.name); err != nil {
		t.Errorf("removeTree: %v", err)
	}
}