1// Copyright 2016 The Go Authors. All rights reserved.
 2// Use of this source code is governed by a BSD-style
 3// license that can be found in the LICENSE file.
 4
 5// +build appengine !linux,!darwin,!freebsd,!openbsd,!netbsd
 6
 7package fastwalk
 8
 9import (
10	"io/ioutil"
11	"os"
12)
13
14// readDir calls fn for each directory entry in dirName.
15// It does not descend into directories or follow symlinks.
16// If fn returns a non-nil error, readDir returns with that error
17// immediately.
18func readDir(dirName string, fn func(dirName, entName string, typ os.FileMode) error) error {
19	fis, err := ioutil.ReadDir(dirName)
20	if err != nil {
21		return err
22	}
23	for _, fi := range fis {
24		if err := fn(dirName, fi.Name(), fi.Mode()&os.ModeType); err != nil {
25			return err
26		}
27	}
28	return nil
29}