code.delx.au - gnu-emacs/blob - lisp/net/tramp-vc.el

   1 ;;; tramp-vc.el --- Version control integration for TRAMP.el
   2
   3 ;; Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006,
   4 ;;   2007, 2008 Free Software Foundation, Inc.
   5
   6 ;; Author: Daniel Pittman <daniel@danann.net>
   7 ;; Keywords: comm, processes
   8
   9 ;; This file is part of GNU Emacs.
  10
  11 ;; GNU Emacs is free software; you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation; either version 3, or (at your option)
  14 ;; any later version.
  15
  16 ;; GNU Emacs is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  23 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  24 ;; Boston, MA 02110-1301, USA.
  25
  26 ;;; Commentary:
  27
  28 ;; See the main module, 'tramp.el' for discussion of the purpose of TRAMP.
  29 ;; This module provides integration between remote files accessed by TRAMP and
  30 ;; the Emacs version control system.
  31
  32 ;;; Code:
  33
  34 (require 'vc)
  35 ;; Old VC defines vc-rcs-release in vc.el, new VC requires extra module.
  36 (unless (boundp 'vc-rcs-release)
  37   (require 'vc-rcs))
  38 (require 'tramp)
  39
  40 ;; Avoid byte-compiler warnings if the byte-compiler supports this.
  41 ;; Currently, XEmacs supports this.
  42 (eval-when-compile
  43   (when (fboundp 'byte-compiler-options)
  44     (let (unused-vars) ; Pacify Emacs byte-compiler
  45       (defalias 'warnings 'identity) ; Pacify Emacs byte-compiler
  46       (byte-compiler-options (warnings (- unused-vars))))))
  47
  48 ;; -- vc --
  49
  50 ;; This used to blow away the file-name-handler-alist and reinstall
  51 ;; TRAMP into it. This was intended to let VC work remotely. It didn't,
  52 ;; at least not in my XEmacs 21.2 install.
  53 ;;
  54 ;; In any case, tramp-run-real-handler now deals correctly with disabling
  55 ;; the things that should be, making this a no-op.
  56 ;;
  57 ;; I have removed it from the tramp-file-name-handler-alist because the
  58 ;; shortened version does nothing. This is for reference only now.
  59 ;;
  60 ;; Daniel Pittman <daniel@danann.net>
  61 ;;
  62 ;; (defun tramp-handle-vc-registered (file)
  63 ;;   "Like `vc-registered' for tramp files."
  64 ;;   (tramp-run-real-handler 'vc-registered (list file)))
  65
  66 ;; `vc-do-command'
  67 ;; This function does not deal well with remote files, so we define
  68 ;; our own version and make a backup of the original function and
  69 ;; call our version for tramp files and the original version for
  70 ;; normal files.
  71
  72 ;; The following function is pretty much copied from vc.el, but
  73 ;; the part that actually executes a command is changed.
  74 ;; CCC: this probably works for Emacs 21, too.
  75 (defun tramp-vc-do-command (buffer okstatus command file last &rest flags)
  76   "Like `vc-do-command' but invoked for tramp files.
  77 See `vc-do-command' for more information."
  78   (save-match-data
  79     (and file (setq file (expand-file-name file)))
  80     (if (not buffer) (setq buffer "*vc*"))
  81     (if vc-command-messages
  82         (message "Running `%s' on `%s'..." command file))
  83     (let ((obuf (current-buffer)) (camefrom (current-buffer))
  84           (squeezed nil)
  85           (olddir default-directory)
  86           vc-file status)
  87       (let* ((v (tramp-dissect-file-name (expand-file-name file)))
  88              (multi-method (tramp-file-name-multi-method v))
  89              (method (tramp-file-name-method v))
  90              (user (tramp-file-name-user v))
  91              (host (tramp-file-name-host v))
  92              (localname (tramp-file-name-localname v)))
  93         (set-buffer (get-buffer-create buffer))
  94         (set (make-local-variable 'vc-parent-buffer) camefrom)
  95         (set (make-local-variable 'vc-parent-buffer-name)
  96              (concat " from " (buffer-name camefrom)))
  97         (setq default-directory olddir)
  98
  99         (erase-buffer)
 100
 101         (mapc
 102          (lambda (s) (and s (setq squeezed (append squeezed (list s)))))
 103          flags)
 104         (if (and (eq last 'MASTER) file
 105                  (setq vc-file (vc-name file)))
 106             (setq squeezed
 107                   (append squeezed
 108                           (list (tramp-file-name-localname
 109                                  (tramp-dissect-file-name vc-file))))))
 110         (if (and file (eq last 'WORKFILE))
 111             (progn
 112               (let* ((pwd (expand-file-name default-directory))
 113                      (preflen (length pwd)))
 114                 (if (string= (substring file 0 preflen) pwd)
 115                     (setq file (substring file preflen))))
 116               (setq squeezed (append squeezed (list file)))))
 117         ;; Unless we (save-window-excursion) the layout of windows in
 118         ;; the current frame changes. This is painful, at best.
 119         ;;
 120         ;; As a point of note, (save-excursion) is still here only because
 121         ;; it preserves (point) in the current buffer. (save-window-excursion)
 122         ;; does not, at least under XEmacs 21.2.
 123         ;;
 124         ;; I trust that the FSF support this as well. I can't find useful
 125         ;; documentation to check :(
 126         ;;
 127         ;; Daniel Pittman <daniel@danann.net>
 128         (save-excursion
 129           (save-window-excursion
 130             ;; Actually execute remote command
 131             ;; `shell-command' cannot be used; it isn't magic in XEmacs.
 132             (tramp-handle-shell-command
 133              (mapconcat 'tramp-shell-quote-argument
 134                         (cons command squeezed) " ") t)
 135             ;;(tramp-wait-for-output)
 136             ;; Get status from command
 137             (tramp-send-command multi-method method user host "echo $?")
 138             (tramp-wait-for-output)
 139             ;; Make sure to get status from last line of output.
 140             (goto-char (point-max)) (forward-line -1)
 141             (setq status (read (current-buffer)))
 142             (message "Command %s returned status %d." command status)))
 143         (goto-char (point-max))
 144         (set-buffer-modified-p nil)
 145         (forward-line -1)
 146         (if (or (not (integerp status))
 147                 (and (integerp okstatus) (< okstatus status)))
 148             (progn
 149               (pop-to-buffer buffer)
 150               (goto-char (point-min))
 151               (shrink-window-if-larger-than-buffer)
 152               (error "Running `%s'...FAILED (%s)" command
 153                      (if (integerp status)
 154                          (format "status %d" status)
 155                        status))
 156               )
 157           (if vc-command-messages
 158               (message "Running %s...OK" command))
 159           )
 160         (set-buffer obuf)
 161         status))
 162     ))
 163
 164 ;; Following code snarfed from Emacs 21 vc.el and slightly tweaked.
 165 (defun tramp-vc-do-command-new (buffer okstatus command file &rest flags)
 166   "Like `vc-do-command' but for TRAMP files.
 167 This function is for the new VC which comes with Emacs 21.
 168 Since TRAMP doesn't do async commands yet, this function doesn't, either."
 169   (and file (setq file (expand-file-name file)))
 170   (if vc-command-messages
 171       (message "Running %s on %s..." command file))
 172   (save-current-buffer
 173     (unless (eq buffer t)
 174       ; Pacify byte-compiler
 175       (funcall (symbol-function 'vc-setup-buffer) buffer))
 176     (let ((squeezed nil)
 177           (inhibit-read-only t)
 178           (status 0))
 179       (let* ((v (when file (tramp-dissect-file-name file)))
 180              (multi-method (when file (tramp-file-name-multi-method v)))
 181              (method (when file (tramp-file-name-method v)))
 182              (user (when file (tramp-file-name-user v)))
 183              (host (when file (tramp-file-name-host v)))
 184              (localname (when file (tramp-file-name-localname v))))
 185       (setq squeezed (delq nil (copy-sequence flags)))
 186       (when file
 187         (setq squeezed (append squeezed (list (file-relative-name
 188                                                file default-directory)))))
 189       (let ((w32-quote-process-args t))
 190         (when (eq okstatus 'async)
 191           (message "Tramp doesn't do async commands, running synchronously."))
 192         ;; `shell-command' cannot be used; it isn't magic in XEmacs.
 193         (setq status (tramp-handle-shell-command
 194                       (mapconcat 'tramp-shell-quote-argument
 195                                  (cons command squeezed) " ") t))
 196         (when (or (not (integerp status))
 197                   (and (integerp okstatus) (< okstatus status)))
 198           (pop-to-buffer (current-buffer))
 199           (goto-char (point-min))
 200           (shrink-window-if-larger-than-buffer)
 201           (error "Running %s...FAILED (%s)" command
 202                  (if (integerp status) (format "status %d" status) status))))
 203       (if vc-command-messages
 204           (message "Running %s...OK" command))
 205       ; Pacify byte-compiler
 206       (funcall (symbol-function 'vc-exec-after)
 207                `(run-hook-with-args
 208                  'vc-post-command-functions ',command ',localname ',flags))
 209       status))))
 210
 211
 212 ;; The context for a VC command is the current buffer.
 213 ;; That makes a test on the buffers file more reliable than a test on the
 214 ;; arguments.
 215 ;; This is needed to handle remote VC correctly - else we test against the
 216 ;; local VC system and get things wrong...
 217 ;; Daniel Pittman <daniel@danann.net>
 218 ;;-(if (fboundp 'vc-call-backend)
 219 ;;-    () ;; This is the new VC for which we don't have an appropriate advice yet
 220 ;;-)
 221 (unless (fboundp 'process-file)
 222   (if (fboundp 'vc-call-backend)
 223       (defadvice vc-do-command
 224         (around tramp-advice-vc-do-command
 225                 (buffer okstatus command file &rest flags)
 226                 activate)
 227         "Invoke tramp-vc-do-command for tramp files."
 228         (let ((file (symbol-value 'file)))    ;pacify byte-compiler
 229           (if (or (and (stringp file)     (tramp-tramp-file-p file))
 230                   (and (buffer-file-name) (tramp-tramp-file-p (buffer-file-name))))
 231               (setq ad-return-value
 232                     (apply 'tramp-vc-do-command-new buffer okstatus command
 233                            file ;(or file (buffer-file-name))
 234                            flags))
 235             ad-do-it)))
 236     (defadvice vc-do-command
 237       (around tramp-advice-vc-do-command
 238               (buffer okstatus command file last &rest flags)
 239               activate)
 240       "Invoke tramp-vc-do-command for tramp files."
 241       (let ((file (symbol-value 'file)))  ;pacify byte-compiler
 242         (if (or (and (stringp file)     (tramp-tramp-file-p file))
 243                 (and (buffer-file-name) (tramp-tramp-file-p (buffer-file-name))))
 244             (setq ad-return-value
 245                   (apply 'tramp-vc-do-command buffer okstatus command
 246                          (or file (buffer-file-name)) last flags))
 247           ad-do-it))))
 248
 249   (add-hook 'tramp-unload-hook
 250             '(lambda () (ad-unadvise 'vc-do-command))))
 251
 252
 253 ;; XEmacs uses this to do some of its work. Like vc-do-command, we
 254 ;; need to enhance it to make VC work via TRAMP-mode.
 255 ;;
 256 ;; Like the previous function, this is a cut-and-paste job from the VC
 257 ;; file. It's based on the vc-do-command code.
 258 ;; CCC: this isn't used in Emacs 21, so do as before.
 259 (defun tramp-vc-simple-command (okstatus command file &rest args)
 260   ;; Simple version of vc-do-command, for use in vc-hooks only.
 261   ;; Don't switch to the *vc-info* buffer before running the
 262   ;; command, because that would change its default directory
 263   (save-match-data
 264     (let* ((v (tramp-dissect-file-name (expand-file-name file)))
 265            (multi-method (tramp-file-name-multi-method v))
 266            (method (tramp-file-name-method v))
 267            (user (tramp-file-name-user v))
 268            (host (tramp-file-name-host v))
 269            (localname (tramp-file-name-localname v)))
 270       (save-excursion (set-buffer (get-buffer-create "*vc-info*"))
 271                       (erase-buffer))
 272       (let ((exec-path (append vc-path exec-path)) exec-status
 273             ;; Add vc-path to PATH for the execution of this command.
 274             (process-environment
 275              (cons (concat "PATH=" (getenv "PATH")
 276                            path-separator
 277                            (mapconcat 'identity vc-path path-separator))
 278                    process-environment)))
 279         ;; Call the actual process. See tramp-vc-do-command for discussion of
 280         ;; why this does both (save-window-excursion) and (save-excursion).
 281         ;;
 282         ;; As a note, I don't think that the process-environment stuff above
 283         ;; has any effect on the remote system. This is a hard one though as
 284         ;; there is no real reason to expect local and remote paths to be
 285         ;; identical...
 286         ;;
 287         ;; Daniel Pittman <daniel@danann.net>
 288         (save-excursion
 289           (save-window-excursion
 290             ;; Actually execute remote command
 291             ;; `shell-command' cannot be used; it isn't magic in XEmacs.
 292             (tramp-handle-shell-command
 293              (mapconcat 'tramp-shell-quote-argument
 294                         (append (list command) args (list localname)) " ")
 295              (get-buffer-create"*vc-info*"))
 296                                         ;(tramp-wait-for-output)
 297             ;; Get status from command
 298             (tramp-send-command multi-method method user host "echo $?")
 299             (tramp-wait-for-output)
 300             (setq exec-status (read (current-buffer)))
 301             (message "Command %s returned status %d." command exec-status)))
 302
 303         ;; Maybe okstatus can be `async' here.  But then, maybe the
 304         ;; async thing is new in Emacs 21, but this function is only
 305         ;; used in Emacs 20.
 306         (cond ((> exec-status okstatus)
 307                (switch-to-buffer (get-file-buffer file))
 308                (shrink-window-if-larger-than-buffer
 309                 (display-buffer "*vc-info*"))
 310                (error "Couldn't find version control information")))
 311         exec-status))))
 312
 313 ;; This function does not exist any more in Emacs-21's VC
 314 (defadvice vc-simple-command
 315   (around tramp-advice-vc-simple-command
 316           (okstatus command file &rest args)
 317           activate)
 318   "Invoke tramp-vc-simple-command for tramp files."
 319   (let ((file (symbol-value 'file)))    ;pacify byte-compiler
 320     (if (or (and (stringp file)     (tramp-tramp-file-p file))
 321             (and (buffer-file-name) (tramp-tramp-file-p (buffer-file-name))))
 322         (setq ad-return-value
 323               (apply 'tramp-vc-simple-command okstatus command
 324                      (or file (buffer-file-name)) args))
 325       ad-do-it)))
 326
 327 (add-hook 'tramp-unload-hook
 328           '(lambda () (ad-unadvise 'vc-simple-command)))
 329
 330
 331 ;; `vc-workfile-unchanged-p'
 332 ;; This function does not deal well with remote files, so we do the
 333 ;; same as for `vc-do-command'.
 334
 335 ;; `vc-workfile-unchanged-p' checks the modification time, we cannot
 336 ;; do that for remote files, so here's a version which relies on diff.
 337 ;; CCC: this one probably works for Emacs 21, too.
 338 (defun tramp-vc-workfile-unchanged-p
 339   (filename &optional want-differences-if-changed)
 340   (if (fboundp 'vc-backend-diff)
 341       ;; Old VC.  Call `vc-backend-diff'.
 342       (let ((status (funcall (symbol-function 'vc-backend-diff)
 343                              filename nil nil
 344                              (not want-differences-if-changed))))
 345         (zerop status))
 346     ;; New VC.  Call `vc-default-workfile-unchanged-p'.
 347       (funcall (symbol-function 'vc-default-workfile-unchanged-p)
 348                (vc-backend filename) filename)))
 349
 350 (defadvice vc-workfile-unchanged-p
 351   (around tramp-advice-vc-workfile-unchanged-p
 352           (filename &optional want-differences-if-changed)
 353           activate)
 354   "Invoke tramp-vc-workfile-unchanged-p for tramp files."
 355   (if (and (stringp filename)
 356            (tramp-tramp-file-p filename)
 357            (not
 358             (let ((v    (tramp-dissect-file-name filename)))
 359               ;; The following check is probably to test whether
 360               ;; file-attributes returns correct last modification
 361               ;; times.  This check needs to be changed.
 362               (tramp-get-remote-perl (tramp-file-name-multi-method v)
 363                                    (tramp-file-name-method v)
 364                                    (tramp-file-name-user v)
 365                                    (tramp-file-name-host v)))))
 366       (setq ad-return-value
 367             (tramp-vc-workfile-unchanged-p filename want-differences-if-changed))
 368     ad-do-it))
 369
 370 (add-hook 'tramp-unload-hook
 371           '(lambda () (ad-unadvise 'vc-workfile-unchanged-p)))
 372
 373
 374 ;; Redefine a function from vc.el -- allow tramp files.
 375 ;; `save-match-data' seems not to be required -- it isn't in
 376 ;; the original version, either.
 377 ;; CCC: this might need some work -- how does the Emacs 21 version
 378 ;; work, anyway?  Does it work over ange-ftp?  Hm.
 379 (if (not (fboundp 'vc-backend-checkout))
 380     () ;; our replacement won't work and is unnecessary anyway
 381 (defun vc-checkout (filename &optional writable rev)
 382   "Retrieve a copy of the latest version of the given file."
 383   ;; If ftp is on this system and the name matches the ange-ftp format
 384   ;; for a remote file, the user is trying something that won't work.
 385   (funcall (symbol-function 'vc-backend-checkout) filename writable rev)
 386   (vc-resynch-buffer filename t t))
 387 )
 388
 389
 390 ;; Do we need to advise the vc-user-login-name function anyway?
 391 ;; This will return the correct login name for the owner of a
 392 ;; file. It does not deal with the default remote user name...
 393 ;;
 394 ;; That is, when vc calls (vc-user-login-name), we return the
 395 ;; local login name, something that may be different to the remote
 396 ;; default.
 397 ;;
 398 ;; The remote VC operations will occur as the user that we logged
 399 ;; in with however - not always the same as the local user.
 400 ;;
 401 ;; In the end, I did advise the function. This is because, well,
 402 ;; the thing didn't work right otherwise ;)
 403 ;;
 404 ;; Daniel Pittman <daniel@danann.net>
 405
 406 (defun tramp-handle-vc-user-login-name (&optional uid)
 407   "Return the default user name on the remote machine.
 408 Whenever VC calls this function, `file' is bound to the file name
 409 in question.  If no uid is provided or the uid is equal to the uid
 410 owning the file, then we return the user name given in the file name.
 411
 412 This should only be called when `file' is bound to the
 413 filename we are thinking about..."
 414   ;; Pacify byte-compiler; this symbol is bound in the calling
 415   ;; function.  CCC: Maybe it would be better to move the
 416   ;; boundness-checking into this function?
 417   (let* ((file (symbol-value 'file))
 418          (remote-uid
 419           ;; With Emacs 22, `file-attributes' has got an optional parameter
 420           ;; ID-FORMAT. Handle this case backwards compatible.
 421           (if (and (functionp 'subr-arity)
 422                    (= 2 (cdr (funcall (symbol-function 'subr-arity)
 423                                       (symbol-function 'file-attributes)))))
 424               (nth 2 (file-attributes file 'integer))
 425             (nth 2 (file-attributes file)))))
 426     (if (and uid (/= uid remote-uid))
 427         (error "tramp-handle-vc-user-login-name cannot map a uid to a name")
 428       (let* ((v (tramp-dissect-file-name (expand-file-name file)))
 429              (u (tramp-file-name-user v)))
 430         (cond ((stringp u) u)
 431               ((vectorp u) (elt u (1- (length u))))
 432               ((null    u) (user-login-name))
 433               (t           (error "tramp-handle-vc-user-login-name cannot cope!")))))))
 434
 435
 436 ;; The following defadvice is no longer necessary after changes in VC
 437 ;; on 2006-01-25, Andre.
 438
 439 ;; That means either GNU Emacs >= 22 or the "new vc" package from XEmacs
 440 ;; packages collection; as of 2007-09-06, test for availability of
 441 ;; `vc-find-version' works for both of those cases.
 442 (unless (fboundp 'vc-find-version)
 443   (defadvice vc-user-login-name
 444     (around tramp-vc-user-login-name activate)
 445     "Support for files on remote machines accessed by TRAMP."
 446     ;; We rely on the fact that `file' is bound when this is called.
 447     ;; This appears to be the case everywhere in vc.el and vc-hooks.el
 448     ;; as of Emacs 20.5.
 449     ;;
 450     ;; With Emacs 22, the definition of `vc-user-login-name' has been
 451     ;; changed.  It doesn't need to be adviced any longer.
 452     (let ((file (when (boundp 'file)
 453                   (symbol-value 'file))))    ;pacify byte-compiler
 454       (or (and (stringp file)
 455                (tramp-tramp-file-p file)        ; tramp file
 456                (setq ad-return-value
 457                      (save-match-data
 458                        (tramp-handle-vc-user-login-name (ad-get-arg 0))))) ; get the owner name
 459           ad-do-it)))                     ; else call the original
 460
 461   (add-hook 'tramp-unload-hook
 462             '(lambda () (ad-unadvise 'vc-user-login-name))))
 463
 464
 465 ;; Determine the name of the user owning a file.
 466 (defun tramp-file-owner (filename)
 467   "Return who owns FILE (user name, as a string)."
 468   (let ((v (tramp-dissect-file-name
 469             (expand-file-name filename))))
 470     (if (not (file-exists-p filename))
 471         nil                             ; file cannot be opened
 472       ;; file exists, find out stuff
 473       (save-excursion
 474         (tramp-send-command
 475          (tramp-file-name-multi-method v) (tramp-file-name-method v)
 476          (tramp-file-name-user v) (tramp-file-name-host v)
 477          (format "%s -Lld %s"
 478                  (tramp-get-ls-command (tramp-file-name-multi-method v)
 479                                      (tramp-file-name-method v)
 480                                      (tramp-file-name-user v)
 481                                      (tramp-file-name-host v))
 482                  (tramp-shell-quote-argument (tramp-file-name-localname v))))
 483         (tramp-wait-for-output)
 484         ;; parse `ls -l' output ...
 485         ;; ... file mode flags
 486         (read (current-buffer))
 487         ;; ... number links
 488         (read (current-buffer))
 489         ;; ... uid (as a string)
 490         (symbol-name (read (current-buffer)))))))
 491
 492 ;; Wire ourselves into the VC infrastructure...
 493 ;; This function does not exist any more in Emacs-21's VC
 494 ;; CCC: it appears that no substitute is needed for Emacs 21.
 495 (defadvice vc-file-owner
 496   (around tramp-vc-file-owner activate)
 497   "Support for files on remote machines accessed by TRAMP."
 498   (let ((filename (ad-get-arg 0)))
 499     (or (and (tramp-file-name-p filename) ; tramp file
 500              (setq ad-return-value
 501                    (save-match-data
 502                      (tramp-file-owner filename)))) ; get the owner name
 503         ad-do-it)))                     ; else call the original
 504
 505 (add-hook 'tramp-unload-hook
 506           '(lambda () (ad-unadvise 'vc-file-owner)))
 507
 508
 509 ;; We need to make the version control software backend version
 510 ;; information local to the current buffer. This is because each TRAMP
 511 ;; buffer can (theoretically) have a different VC version and I am
 512 ;; *way* too lazy to try and push the correct value into each new
 513 ;; buffer.
 514 ;;
 515 ;; Remote VC costs will just have to be paid, at least for the moment.
 516 ;; Well, at least, they will right until I feel guilty about doing a
 517 ;; botch job here and fix it. :/
 518 ;;
 519 ;; Daniel Pittman <daniel@danann.net>
 520 ;; CCC: this is probably still needed for Emacs 21.
 521 (defun tramp-vc-setup-for-remote ()
 522   "Make the backend release variables buffer local.
 523 This makes remote VC work correctly at the cost of some processing time."
 524   (when (and (buffer-file-name)
 525              (tramp-tramp-file-p (buffer-file-name)))
 526     (make-local-variable 'vc-rcs-release)
 527     (setq vc-rcs-release nil)))
 528
 529 (add-hook 'find-file-hooks 'tramp-vc-setup-for-remote t)
 530 (add-hook 'tramp-unload-hook
 531           '(lambda ()
 532              (remove-hook 'find-file-hooks 'tramp-vc-setup-for-remote)))
 533
 534 ;; No need to load this again if anyone asks.
 535 (provide 'tramp-vc)
 536
 537 ;;; arch-tag: 27cc42ce-da19-468d-ad5c-a2690558db60
 538 ;;; tramp-vc.el ends here