1 // Copyright 2009 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.
8 // MkdirAll creates a directory named path,
9 // along with any necessary parents, and returns nil,
10 // or else returns an error.
11 // The permission bits perm are used for all
12 // directories that MkdirAll creates.
13 // If path is already a directory, MkdirAll does nothing
15 func MkdirAll(path string, perm uint32) Error {
16 // If path exists, stop with success or error.
17 dir, err := Lstat(path)
19 if dir.IsDirectory() {
22 return &PathError{"mkdir", path, ENOTDIR}
25 // Doesn't already exist; make sure parent does.
27 for i > 0 && path[i-1] == '/' { // Skip trailing slashes.
32 for j > 0 && path[j-1] != '/' { // Scan backward over element.
38 err = MkdirAll(path[0:j-1], perm)
44 // Now parent exists, try to create.
45 err = Mkdir(path, perm)
47 // Handle arguments like "foo/." by
48 // double-checking that directory doesn't exist.
49 dir, err1 := Lstat(path)
50 if err1 == nil && dir.IsDirectory() {
58 // RemoveAll removes path and any children it contains.
59 // It removes everything it can but returns the first error
60 // it encounters. If the path does not exist, RemoveAll
61 // returns nil (no error).
62 func RemoveAll(path string) Error {
63 // Simple case: if Remove works, we're done.
69 // Otherwise, is this a directory we need to recurse into?
70 dir, serr := Lstat(path)
72 if serr, ok := serr.(*PathError); ok && serr.Error == ENOENT {
77 if !dir.IsDirectory() {
78 // Not a directory; return the error from Remove.
83 fd, err := Open(path, O_RDONLY, 0)
88 // Remove contents & return first error.
91 names, err1 := fd.Readdirnames(100)
92 for _, name := range names {
93 err1 := RemoveAll(path + "/" + name)
98 // If Readdirnames returned an error, use it.
107 // Close directory, because windows won't remove opened directory.