72 lines
2.8 KiB
Common Lisp
72 lines
2.8 KiB
Common Lisp
;;; -*- Mode: LISP; Syntax: COMMON-LISP; Package: CCL; Base: 10 -*-
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;;; $Header: /usr/local/cvsrep/cl-fad/openmcl.lisp,v 1.6 2009/09/30 14:23:10 edi Exp $
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;;; Copyright (c) 2004-2010, Dr. Edmund Weitz. All rights reserved.
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;;; Redistribution and use in source and binary forms, with or without
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;;; modification, are permitted provided that the following conditions
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;;; are met:
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;;; * Redistributions of source code must retain the above copyright
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;;; notice, this list of conditions and the following disclaimer.
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;;; * Redistributions in binary form must reproduce the above
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;;; copyright notice, this list of conditions and the following
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;;; disclaimer in the documentation and/or other materials
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;;; provided with the distribution.
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;;; THIS SOFTWARE IS PROVIDED BY THE AUTHORS 'AS IS' AND ANY EXPRESSED
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;;; OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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;;; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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;;; ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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;;; DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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;;; DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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;;; GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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;;; INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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;;; WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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;;; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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;;; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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(in-package :cl-fad)
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(eval-when (:compile-toplevel :load-toplevel :execute)
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(flet ((ccl-function-feature (symbol-name feature)
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(let ((symbol (find-symbol symbol-name :ccl)))
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(when (and symbol (fboundp symbol))
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(pushnew feature *features*)))))
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(ccl-function-feature "%RMDIR" :ccl-has-%rmdir)
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(ccl-function-feature "DELETE-DIRECTORY" :ccl-has-delete-directory)))
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(defpackage :cl-fad-ccl
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(:use :cl)
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(:export delete-directory)
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(:import-from :ccl
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:%realpath
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:signal-file-error
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:native-translated-namestring
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:with-cstrs)
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#+ccl-has-%rmdir
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(:import-from :ccl :%rmdir)
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#+ccl-has-delete-directory
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(:import-from :ccl :delete-directory))
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(in-package :cl-fad-ccl)
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#-ccl-has-%rmdir
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(defun %rmdir (name)
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(with-cstrs ((n name))
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(#_rmdir n)))
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;;; ClozureCL 1.6 introduced ccl:delete-directory with semantics that
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;;; are acceptably similar to this "legacy" definition.
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;;;
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;;; Except this legacy definition is not recursive, hence this function is
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;;; used only if there is no :CCL-HAS-DELETE-DIRECTORY feature.
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#-ccl-has-delete-directory
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(defun delete-directory (path)
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(let* ((namestring (native-translated-namestring path)))
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(when (%realpath namestring)
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(let* ((err (%rmdir namestring)))
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(or (eql 0 err) (signal-file-error err path))))))
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