4f4a855d82
Reviewed-on: https://go-review.googlesource.com/c/158019 gotools/: * Makefile.am (go_cmd_vet_files): Update for Go1.12beta2 release. (GOTOOLS_TEST_TIMEOUT): Increase to 600. (check-runtime): Export LD_LIBRARY_PATH before computing GOARCH and GOOS. (check-vet): Copy golang.org/x/tools into check-vet-dir. * Makefile.in: Regenerate. gcc/testsuite/: * go.go-torture/execute/names-1.go: Stop using debug/xcoff, which is no longer externally visible. From-SVN: r268084
71 lines
1.7 KiB
Go
71 lines
1.7 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package os
|
|
|
|
import (
|
|
"syscall"
|
|
)
|
|
|
|
// MkdirAll creates a directory named path,
|
|
// along with any necessary parents, and returns nil,
|
|
// or else returns an error.
|
|
// The permission bits perm (before umask) are used for all
|
|
// directories that MkdirAll creates.
|
|
// If path is already a directory, MkdirAll does nothing
|
|
// and returns nil.
|
|
func MkdirAll(path string, perm FileMode) error {
|
|
// Fast path: if we can tell whether path is a directory or file, stop with success or error.
|
|
dir, err := Stat(path)
|
|
if err == nil {
|
|
if dir.IsDir() {
|
|
return nil
|
|
}
|
|
return &PathError{"mkdir", path, syscall.ENOTDIR}
|
|
}
|
|
|
|
// Slow path: make sure parent exists and then call Mkdir for path.
|
|
i := len(path)
|
|
for i > 0 && IsPathSeparator(path[i-1]) { // Skip trailing path separator.
|
|
i--
|
|
}
|
|
|
|
j := i
|
|
for j > 0 && !IsPathSeparator(path[j-1]) { // Scan backward over element.
|
|
j--
|
|
}
|
|
|
|
if j > 1 {
|
|
// Create parent.
|
|
err = MkdirAll(fixRootDirectory(path[:j-1]), perm)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
// Parent now exists; invoke Mkdir and use its result.
|
|
err = Mkdir(path, perm)
|
|
if err != nil {
|
|
// Handle arguments like "foo/." by
|
|
// double-checking that directory doesn't exist.
|
|
dir, err1 := Lstat(path)
|
|
if err1 == nil && dir.IsDir() {
|
|
return nil
|
|
}
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// endsWithDot reports whether the final component of path is ".".
|
|
func endsWithDot(path string) bool {
|
|
if path == "." {
|
|
return true
|
|
}
|
|
if len(path) >= 2 && path[len(path)-1] == '.' && IsPathSeparator(path[len(path)-2]) {
|
|
return true
|
|
}
|
|
return false
|
|
}
|