source: trunk/abcl/src/org/armedbear/lisp/ensure-directories-exist.lisp @ 13289

Last change on this file since 13289 was 13289, checked in by Mark Evenson, 11 years ago

Fix ENSURE-DIRECTORIES-EXIST by loosening wild pathname restrictions.

CLHS: Function ENSURE-DIRECTORIES-EXIST "An error of type file-error
is signaled if the host, device, or directory part of pathspec is
wild."

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id
File size: 3.1 KB
Line 
1;;; ensure-directories-exist.lisp
2;;;
3;;; Copyright (C) 2004-2007 Peter Graves
4;;; $Id: ensure-directories-exist.lisp 13289 2011-05-24 09:01:03Z mevenson $
5;;;
6;;; This program is free software; you can redistribute it and/or
7;;; modify it under the terms of the GNU General Public License
8;;; as published by the Free Software Foundation; either version 2
9;;; of the License, or (at your option) any later version.
10;;;
11;;; This program is distributed in the hope that it will be useful,
12;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
13;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14;;; GNU General Public License for more details.
15;;;
16;;; You should have received a copy of the GNU General Public License
17;;; along with this program; if not, write to the Free Software
18;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
19;;;
20;;; As a special exception, the copyright holders of this library give you
21;;; permission to link this library with independent modules to produce an
22;;; executable, regardless of the license terms of these independent
23;;; modules, and to copy and distribute the resulting executable under
24;;; terms of your choice, provided that you also meet, for each linked
25;;; independent module, the terms and conditions of the license of that
26;;; module.  An independent module is a module which is not derived from
27;;; or based on this library.  If you modify this library, you may extend
28;;; this exception to your version of the library, but you are not
29;;; obligated to do so.  If you do not wish to do so, delete this
30;;; exception statement from your version.
31
32;;; Adapted from SBCL.
33
34(in-package "SYSTEM")
35
36(defun ensure-directories-exist (pathspec &key verbose)
37  (let ((pathname (pathname pathspec))
38  (created-p nil))
39;;; CLHS: Function ENSURE-DIRECTORIES-EXIST "An error of type
40;;; file-error is signaled if the host, device, or directory part of
41;;; pathspec is wild."
42    (when (or (wild-pathname-p pathname :host)
43              (wild-pathname-p pathname :device)
44              (wild-pathname-p pathname :directory))
45      (error 'file-error
46       :format-control "Bad place for a wild HOST, DEVICE, or DIRECTORY component."
47       :pathname pathname))
48    (let ((dir (pathname-directory pathname)))
49      (loop for i from 1 upto (length dir)
50        do (let ((newpath (make-pathname
51                           :host (pathname-host pathname)
52                           :device (pathname-device pathname)
53                           :directory (subseq dir 0 i))))
54             (unless (probe-file newpath)
55               (let ((namestring (namestring newpath)))
56                 (when verbose
57                   (fresh-line)
58                   (format *standard-output*
59                           "Creating directory: ~A~%"
60                           namestring))
61                 (mkdir namestring)
62                 (unless (probe-file namestring)
63                   (error 'file-error
64                          :pathname pathspec
65                          :format-control "Can't create directory ~A."
66                          :format-arguments (list namestring)))
67                 (setq created-p t)))))
68      (values pathname created-p))))
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