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.
11 // MkdirAll creates a directory named path,
12 // along with any necessary parents, and returns nil,
13 // or else returns an error.
14 // The permission bits perm (before umask) are used for all
15 // directories that MkdirAll creates.
16 // If path is already a directory, MkdirAll does nothing
18 func MkdirAll(path
string, perm FileMode
) error
{
19 // Fast path: if we can tell whether path is a directory or file, stop with success or error.
20 dir
, err
:= Stat(path
)
25 return &PathError
{Op
: "mkdir", Path
: path
, Err
: syscall
.ENOTDIR
}
28 // Slow path: make sure parent exists and then call Mkdir for path.
30 for i
> 0 && IsPathSeparator(path
[i
-1]) { // Skip trailing path separator.
35 for j
> 0 && !IsPathSeparator(path
[j
-1]) { // Scan backward over element.
41 err
= MkdirAll(fixRootDirectory(path
[:j
-1]), perm
)
47 // Parent now exists; invoke Mkdir and use its result.
48 err
= Mkdir(path
, perm
)
50 // Handle arguments like "foo/." by
51 // double-checking that directory doesn't exist.
52 dir
, err1
:= Lstat(path
)
53 if err1
== nil && dir
.IsDir() {
61 // RemoveAll removes path and any children it contains.
62 // It removes everything it can but returns the first error
63 // it encounters. If the path does not exist, RemoveAll
64 // returns nil (no error).
65 // If there is an error, it will be of type *PathError.
66 func RemoveAll(path
string) error
{
67 return removeAll(path
)
70 // endsWithDot reports whether the final component of path is ".".
71 func endsWithDot(path
string) bool {
75 if len(path
) >= 2 && path
[len(path
)-1] == '.' && IsPathSeparator(path
[len(path
)-2]) {