Drop vc-dav.el

diff --git a/lisp/vc/vc-dav.el b/lisp/vc/vc-dav.el
deleted file mode 100644 (file)
index ad86fdd..0000000
--- a/lisp/vc/vc-dav.el
+++ /dev/null
@@ -1,163 +0,0 @@
-;;; vc-dav.el --- vc.el support for WebDAV  -*- lexical-binding: t; -*-
-
-;; Copyright (C) 2001-2025 Free Software Foundation, Inc.
-
-;; Author: Bill Perry <wmperry@gnu.org>
-;; Keywords: url, vc
-;; Package: vc
-
-;; 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:
-
-;;; Todo:
-;;
-;; - Some methods need to be updated to match the current vc.el.
-;;     - rename "version" -> "revision"
-;;     - some methods need to take a fileset as a parameter instead of a
-;;       single file.
-
-;;; Code:
-
-(require 'url)
-(require 'url-dav)
-
-;;; Required functions for a vc backend
-(defun vc-dav-registered (url)
-  "Return t if URL is registered with a DAV aware server."
-  (url-dav-vc-registered url))
-
-(defun vc-dav-state (url)
-  "Return the current version control state of URL.
-For a list of possible values, see `vc-state'."
-  ;; Things we can support for WebDAV
-  ;;
-  ;; up-to-date - use lockdiscovery
-  ;; edited     - check for an active lock by us
-  ;; USER       - use lockdiscovery + owner
-  ;;
-  ;; These don't make sense for WebDAV
-  ;; needs-patch
-  ;; needs-merge
-  ;; unlocked-changes
-  (let ((locks (url-dav-active-locks url)))
-    (cond
-     ((null locks) 'up-to-date)
-     ((assoc url locks)
-      ;; SOMEBODY has a lock... let's find out who.
-      (setq locks (cdr (assoc url locks)))
-      (if (rassoc url-dav-lock-identifier locks)
-         ;; _WE_ have a lock
-         'edited
-       (cdr (car locks)))))))
-
-(defun vc-dav-checkout-model (_url)
-  "Indicate whether URL needs to be \"checked out\" before it can be edited.
-See `vc-checkout-model' for a list of possible values."
-  ;; The only thing we can support with webdav is 'locking
-  'locking)
-
-;; This should figure out the version # of the file somehow.  What is
-;; the most appropriate property in WebDAV to look at for this?
-(defun vc-dav-workfile-version (_url)
-  "Return the current workfile version of URL."
-  "Unknown")
-
-(defun vc-dav-register (_url &optional _comment)
-  "Register URL in the DAV backend."
-  ;; Do we need to do anything here?  FIXME?
-  )
-
-(defun vc-dav-checkin (_url _comment &optional _rev)
-  "Commit changes in URL to WebDAV.  COMMENT is used as a check-in comment."
-  ;; This should PUT the resource and release any locks that we hold.
-  )
-
-(defun vc-dav-checkout (_url &optional _rev _destfile)
-  "Check out revision REV of URL into the working area.
-
-If EDITABLE is non-nil URL should be writable by the user and if
-locking is used for URL, a lock should also be set.
-
-If REV is non-nil, that is the revision to check out.  If REV is the
-empty string, that means to check out the head of the trunk.
-
-If optional arg DESTFILE is given, it is an alternate filename to
-write the contents to."
-  ;; This should LOCK the resource.
-  )
-
-(defun vc-dav-revert (_url &optional _contents-done)
-  "Revert URL back to the current workfile version.
-
-If optional arg CONTENTS-DONE is non-nil, then the contents of FILE
-have already been reverted from a version backup, and this function
-only needs to update the status of URL within the backend."
-  ;; Should do a GET if !contents_done
-  ;; Should UNLOCK the file.
-  )
-
-(defun vc-dav-print-log (_url)
-  "Insert the revision log of URL into the *vc* buffer."
-  )
-
-(defun vc-dav-diff (_url &optional _rev1 _rev2 _buffer _async)
-  "Insert the diff for URL into the *vc-diff* buffer.
-If REV1 and REV2 are non-nil report differences from REV1 to REV2.
-If REV1 is nil, use the current workfile version as the older version.
-If REV2 is nil, use the current workfile contents as the nwer version.
-
-It should return a status of either 0 (no differences found), or
-1 (either non-empty diff or the diff is run asynchronously)."
-  ;; We should do this asynchronously...
-  ;; How would we do it at all, that is the question!
-  )
-
-
-
-;;; Optional functions
-
-;; This should use url-dav-get-properties with a depth of `1' to get
-;; all the properties.
-(defun vc-dav-dir-state (_url)
-  "Find the version control state of all files in DIR in a fast way."
-  )
-
-(defun vc-dav-responsible-p (url)
-  "Return the URL if DAV considers itself `responsible' for URL."
-  ;; Check for DAV support on the web server.
-  url)
-
-;;; Unimplemented functions
-;;
-;; vc-dav-mode-line-string(url)
-;;    Return a dav-specific mode line string for URL. Are there any
-;;    specific states that we want exposed?
-;;
-;; vc-dir support
-;;
-;; vc-dav-receive-file(url rev)
-;;    Let this backend `receive' a file that is already registered
-;;    under another backend.  The default just calls `register', which
-;;    should be sufficient for WebDAV.
-;;
-;; vc-dav-unregister(url)
-;;    Unregister URL.  Not possible with WebDAV, other than by
-;;    deleting the resource.
-
-(provide 'vc-dav)
-
-;;; vc-dav.el ends here