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emacs/lisp/url/url-nfs.el
2023-01-01 05:31:12 -05:00

92 lines
3.0 KiB
EmacsLisp

;;; url-nfs.el --- NFS URL interface -*- lexical-binding: t; -*-
;; Copyright (C) 1996-1999, 2004-2023 Free Software Foundation, Inc.
;; Keywords: comm, data, processes
;; This file is part of GNU Emacs.
;;
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
(require 'url-parse)
(require 'url-file)
(defcustom url-nfs-automounter-directory-spec "file:/net/%h%f"
"How to invoke the NFS automounter. Certain % sequences are recognized.
%h -- the hostname of the NFS server
%n -- the port # of the NFS server
%u -- the username to use to authenticate
%p -- the password to use to authenticate
%f -- the filename on the remote server
%% -- a literal %
Each can be used any number of times."
:group 'url
:type 'string)
(defun url-nfs-unescape (format host port user pass file)
(with-current-buffer (get-buffer-create " *nfs-parse*")
(erase-buffer)
(insert format)
(goto-char (point-min))
(while (re-search-forward "%\\(.\\)" nil t)
(let ((escape (aref (match-string 1) 0)))
(replace-match "" t t)
(pcase escape
(?% (insert "%"))
(?h (insert host))
(?n (insert (or port "")))
(?u (insert (or user "")))
(?p (insert (or pass "")))
(?f (insert (or file "/"))))))
(buffer-string)))
(defun url-nfs-build-filename (url)
(let* ((host (url-host url))
(port (url-port url))
(pass (url-password url))
(user (url-user url))
(file (url-filename url)))
(url-generic-parse-url
(url-nfs-unescape url-nfs-automounter-directory-spec
host port user pass file))))
(defun url-nfs (url callback cbargs)
(url-file (url-nfs-build-filename url) callback cbargs))
(defmacro url-nfs-create-wrapper (method args)
`(defun ,(intern (format "url-nfs-%s" method)) ,args
,(format "NFS URL wrapper around `%s' call." method)
(setq url (url-nfs-build-filename url))
(and url (,(intern (format "url-file-%s" method))
,@(remove '&rest (remove '&optional args))))))
(url-nfs-create-wrapper file-exists-p (url))
(url-nfs-create-wrapper file-attributes (url &optional id-format))
(url-nfs-create-wrapper file-symlink-p (url))
(url-nfs-create-wrapper file-readable-p (url))
(url-nfs-create-wrapper file-writable-p (url))
(url-nfs-create-wrapper file-executable-p (url))
(url-nfs-create-wrapper directory-files (url &optional full match nosort))
(url-nfs-create-wrapper file-truename (url &optional counter prev-dirs))
(provide 'url-nfs)
;;; url-nfs.el ends here