desktop.el 47.7 KB
Newer Older
Richard M. Stallman's avatar
Richard M. Stallman committed
1 2
;;; desktop.el --- save partial status of Emacs when killed

3
;; Copyright (C) 1993, 1994, 1995, 1997, 2000, 2001, 2002, 2003,
Glenn Morris's avatar
Glenn Morris committed
4
;;   2004, 2005, 2006, 2007 Free Software Foundation, Inc.
Richard M. Stallman's avatar
Richard M. Stallman committed
5 6

;; Author: Morten Welinder <terra@diku.dk>
Dave Love's avatar
Dave Love committed
7
;; Keywords: convenience
Richard M. Stallman's avatar
Richard M. Stallman committed
8
;; Favourite-brand-of-beer: None, I hate beer.
Richard M. Stallman's avatar
Richard M. Stallman committed
9 10 11 12 13 14 15 16 17 18 19 20 21 22

;; 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 2, 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
Erik Naggum's avatar
Erik Naggum committed
23
;; along with GNU Emacs; see the file COPYING.  If not, write to the
Lute Kamstra's avatar
Lute Kamstra committed
24 25
;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
Richard M. Stallman's avatar
Richard M. Stallman committed
26 27 28

;;; Commentary:

29 30 31 32 33 34 35 36
;; Save the Desktop, i.e.,
;;	- some global variables
;; 	- the list of buffers with associated files.  For each buffer also
;;		- the major mode
;;		- the default directory
;;		- the point
;;		- the mark & mark-active
;;		- buffer-read-only
37
;;		- some local variables
Richard M. Stallman's avatar
Richard M. Stallman committed
38

Lars Hansen's avatar
Lars Hansen committed
39 40
;; To use this, use customize to turn on desktop-save-mode or add the
;; following line somewhere in your .emacs file:
41
;;
Lars Hansen's avatar
Lars Hansen committed
42
;;	(desktop-save-mode 1)
43
;;
Lars Hansen's avatar
Lars Hansen committed
44 45 46 47
;; For further usage information, look at the section
;; "Saving Emacs Sessions" in the GNU Emacs Manual.

;; When the desktop module is loaded, the function `desktop-kill' is
48
;; added to the `kill-emacs-hook'.  This function is responsible for
Lars Hansen's avatar
Lars Hansen committed
49
;; saving the desktop when Emacs is killed.  Furthermore an anonymous
50
;; function is added to the `after-init-hook'.  This function is
Lars Hansen's avatar
Lars Hansen committed
51
;; responsible for loading the desktop when Emacs is started.
52

53 54 55 56 57
;; Special handling.
;; -----------------
;; Variables `desktop-buffer-mode-handlers' and `desktop-minor-mode-handlers'
;; are supplied to handle special major and minor modes respectively.
;; `desktop-buffer-mode-handlers' is an alist of major mode specific functions
58
;; to restore a desktop buffer.  Elements must have the form
59
;;
60
;;    (MAJOR-MODE . RESTORE-BUFFER-FUNCTION).
61
;;
62
;; Functions listed are called by `desktop-create-buffer' when `desktop-read'
63
;; evaluates the desktop file.  Buffers with a major mode not specified here,
64 65 66
;; are restored by the default handler `desktop-restore-file-buffer'.
;; `desktop-minor-mode-handlers' is an alist of functions to restore
;; non-standard minor modes.  Elements must have the form
67
;;
68
;;    (MINOR-MODE . RESTORE-FUNCTION).
69
;;
70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87
;; Functions are called by `desktop-create-buffer' to restore minor modes.
;; Minor modes not specified here, are restored by the standard minor mode
;; function.  If you write a module that defines a major or minor mode that
;; needs a special handler, then place code like

;;    (defun foo-restore-desktop-buffer
;;    ...
;;    (add-to-list 'desktop-buffer-mode-handlers
;;                 '(foo-mode . foo-restore-desktop-buffer))

;; or

;;    (defun bar-desktop-restore
;;    ...
;;    (add-to-list 'desktop-minor-mode-handlers
;;                 '(bar-mode . bar-desktop-restore))

;; in the module itself, and make shure that the mode function is
88
;; autoloaded.  See the docstrings of `desktop-buffer-mode-handlers' and
89 90 91 92 93 94 95 96 97 98 99 100 101 102
;; `desktop-minor-mode-handlers' for more info.

;; Minor modes.
;; ------------
;; Conventional minor modes (see node "Minor Mode Conventions" in the elisp
;; manual) are handled in the following way:
;; When `desktop-save' saves the state of a buffer to the desktop file, it
;; saves as `desktop-minor-modes' the list of names of those variables in
;; `minor-mode-alist' that have a non-nil value.
;; When `desktop-create' restores the buffer, each of the symbols in
;; `desktop-minor-modes' is called as function with parameter 1.
;; The variables `desktop-minor-mode-table' and `desktop-minor-mode-handlers'
;; are used to handle non-conventional minor modes.  `desktop-save' uses
;; `desktop-minor-mode-table' to map minor mode variables to minor mode
103
;; functions before writing `desktop-minor-modes'.  If a minor mode has a
104 105 106 107 108 109 110 111 112
;; variable name that is different form its function name, an entry

;;    (NAME RESTORE-FUNCTION)

;; should be added to `desktop-minor-mode-table'.  If a minor mode should not
;; be restored, RESTORE-FUNCTION should be set to nil.  `desktop-create' uses
;; `desktop-minor-mode-handlers' to lookup minor modes that needs a restore
;; function different from the usual minor mode function.
;; ---------------------------------------------------------------------------
113

114 115 116 117
;; By the way: don't use desktop.el to customize Emacs -- the file .emacs
;; in your home directory is used for that.  Saving global default values
;; for buffers is an example of misuse.

118 119 120
;; PLEASE NOTE: The kill ring can be saved as specified by the variable
;; `desktop-globals-to-save' (by default it isn't).  This may result in saving
;; things you did not mean to keep.  Use M-x desktop-clear RET.
121

122 123 124 125 126
;; Thanks to  hetrick@phys.uva.nl (Jim Hetrick)      for useful ideas.
;;            avk@rtsg.mot.com (Andrew V. Klein)     for a dired tip.
;;            chris@tecc.co.uk (Chris Boucher)       for a mark tip.
;;            f89-kam@nada.kth.se (Klas Mellbourn)   for a mh-e tip.
;;            kifer@sbkifer.cs.sunysb.edu (M. Kifer) for a bug hunt.
127
;;            treese@lcs.mit.edu (Win Treese)        for ange-ftp tips.
128
;;            pot@cnuce.cnr.it (Francesco Potorti`)  for misc. tips.
129 130 131 132 133 134
;; ---------------------------------------------------------------------------
;; TODO:
;;
;; Save window configuration.
;; Recognize more minor modes.
;; Save mark rings.
Richard M. Stallman's avatar
Richard M. Stallman committed
135 136 137

;;; Code:

138
(defvar desktop-file-version "206"
139
  "Version number of desktop file format.
140 141 142
Written into the desktop file and used at desktop read to provide
backward compatibility.")

143
;; ----------------------------------------------------------------------------
144 145
;; USER OPTIONS -- settings you might want to play with.
;; ----------------------------------------------------------------------------
146 147 148 149 150

(defgroup desktop nil
  "Save status of Emacs when you exit."
  :group 'frames)

Lars Hansen's avatar
Lars Hansen committed
151 152 153 154
;;;###autoload
(define-minor-mode desktop-save-mode
  "Toggle desktop saving mode.
With numeric ARG, turn desktop saving on if ARG is positive, off
155 156 157
otherwise.  If desktop saving is turned on, the state of Emacs is
saved from one session to another.  See variable `desktop-save'
and function `desktop-read' for details."
Lars Hansen's avatar
Lars Hansen committed
158 159 160 161
  :global t
  :group 'desktop)

;; Maintained for backward compatibility
162 163
(define-obsolete-variable-alias 'desktop-enable
                                'desktop-save-mode "22.1")
164

165 166 167 168
(defun desktop-save-mode-off ()
  "Disable `desktop-save-mode'.  Provided for use in hooks."
  (desktop-save-mode 0))

169
(defcustom desktop-save 'ask-if-new
Lars Hansen's avatar
Lars Hansen committed
170 171 172
  "*Specifies whether the desktop should be saved when it is killed.
A desktop is killed when the user changes desktop or quits Emacs.
Possible values are:
173 174 175 176 177 178
   t             -- always save.
   ask           -- always ask.
   ask-if-new    -- ask if no desktop file exists, otherwise just save.
   ask-if-exists -- ask if desktop file exists, otherwise don't save.
   if-exists     -- save if desktop file exists, otherwise don't save.
   nil           -- never save.
Lars Hansen's avatar
Lars Hansen committed
179
The desktop is never saved when `desktop-save-mode' is nil.
180
The variables `desktop-dirname' and `desktop-base-file-name'
Lars Hansen's avatar
Lars Hansen committed
181
determine where the desktop is saved."
182 183
  :type
  '(choice
184 185 186 187 188 189
    (const :tag "Always save" t)
    (const :tag "Always ask" ask)
    (const :tag "Ask if desktop file is new, else do save" ask-if-new)
    (const :tag "Ask if desktop file exists, else don't save" ask-if-exists)
    (const :tag "Save if desktop file exists, else don't" if-exists)
    (const :tag "Never save" nil))
190
  :group 'desktop
191
  :version "22.1")
192 193

(defcustom desktop-base-file-name
194
  (convert-standard-filename ".emacs.desktop")
Lars Hansen's avatar
Lars Hansen committed
195
  "Name of file for Emacs desktop, excluding the directory part."
196 197
  :type 'file
  :group 'desktop)
198 199
(define-obsolete-variable-alias 'desktop-basefilename
                                'desktop-base-file-name "22.1")
Richard M. Stallman's avatar
Richard M. Stallman committed
200

201 202 203 204 205 206 207
(defcustom desktop-base-lock-name
  (convert-standard-filename ".emacs.desktop.lock")
  "Name of lock file for Emacs desktop, excluding the directory part."
  :type 'file
  :group 'desktop
  :version "23.1")

208 209 210 211
(defcustom desktop-path '("." "~")
  "List of directories to search for the desktop file.
The base name of the file is specified in `desktop-base-file-name'."
  :type '(repeat directory)
212
  :group 'desktop
213
  :version "22.1")
214

215
(defcustom desktop-missing-file-warning nil
216
  "If non-nil, offer to recreate the buffer of a deleted file.
217 218 219 220
Also pause for a moment to display message about errors signaled in
`desktop-buffer-mode-handlers'.

If nil, just print error messages in the message buffer."
221
  :type 'boolean
222
  :group 'desktop
223
  :version "22.1")
Richard M. Stallman's avatar
Richard M. Stallman committed
224

225
(defcustom desktop-no-desktop-file-hook nil
Lars Hansen's avatar
Lars Hansen committed
226
  "Normal hook run when `desktop-read' can't find a desktop file.
227
Run in the directory in which the desktop file was sought.
228
May be used to show a dired buffer."
229
  :type 'hook
230
  :group 'desktop
231
  :version "22.1")
232

233 234 235 236 237 238 239 240 241
(defcustom desktop-not-loaded-hook nil
  "Normal hook run when the user declines to re-use a desktop file.
Run in the directory in which the desktop file was found.
May be used to deal with accidental multiple Emacs jobs."
  :type 'hook
  :group 'desktop
  :options '(desktop-save-mode-off save-buffers-kill-emacs)
  :version "23.1")

242
(defcustom desktop-after-read-hook nil
243
  "Normal hook run after a successful `desktop-read'.
244
May be used to show a buffer list."
245
  :type 'hook
246
  :group 'desktop
247
  :options '(list-buffers)
248
  :version "22.1")
249 250

(defcustom desktop-save-hook nil
Lars Hansen's avatar
Lars Hansen committed
251
  "Normal hook run before the desktop is saved in a desktop file.
252 253 254
Run with the desktop buffer current with only the header present.
May be used to add to the desktop code or to truncate history lists,
for example."
255 256 257
  :type 'hook
  :group 'desktop)

258 259 260 261 262 263 264
(defcustom desktop-globals-to-save
  '(desktop-missing-file-warning
    tags-file-name
    tags-table-list
    search-ring
    regexp-search-ring
    register-alist)
Lars Hansen's avatar
Lars Hansen committed
265 266 267 268
  "List of global variables saved by `desktop-save'.
An element may be variable name (a symbol) or a cons cell of the form
\(VAR . MAX-SIZE), which means to truncate VAR's value to at most
MAX-SIZE elements (if the value is a list) before saving the value.
269 270 271 272
Feature: Saving `kill-ring' implies saving `kill-ring-yank-pointer'."
  :type '(repeat (restricted-sexp :match-alternatives (symbolp consp)))
  :group 'desktop)

273 274 275 276 277 278 279
(defcustom desktop-globals-to-clear
  '(kill-ring
    kill-ring-yank-pointer
    search-ring
    search-ring-yank-pointer
    regexp-search-ring
    regexp-search-ring-yank-pointer)
280
  "List of global variables that `desktop-clear' will clear.
281
An element may be variable name (a symbol) or a cons cell of the form
282 283
\(VAR . FORM).  Symbols are set to nil and for cons cells VAR is set
to the value obtained by evaluating FORM."
284
  :type '(repeat (restricted-sexp :match-alternatives (symbolp consp)))
285
  :group 'desktop
286
  :version "22.1")
287

288 289 290 291 292
(defcustom desktop-clear-preserve-buffers
  '("\\*scratch\\*" "\\*Messages\\*" "\\*server\\*" "\\*tramp/.+\\*")
  "*List of buffers that `desktop-clear' should not delete.
Each element is a regular expression.  Buffers with a name matched by any of
these won't be deleted."
293 294
  :type '(repeat string)
  :group 'desktop)
295

296
;;;###autoload
297 298 299 300 301 302 303 304 305
(defcustom desktop-locals-to-save
  '(desktop-locals-to-save  ; Itself!  Think it over.
    truncate-lines
    case-fold-search
    case-replace
    fill-column
    overwrite-mode
    change-log-default-name
    line-number-mode
306 307 308 309
    column-number-mode
    size-indication-mode
    buffer-file-coding-system
    indent-tabs-mode
310
    tab-width
311 312 313
    indicate-buffer-boundaries
    indicate-empty-lines
    show-trailing-whitespace)
Richard M. Stallman's avatar
Richard M. Stallman committed
314
  "List of local variables to save for each buffer.
315 316
The variables are saved only when they really are local.  Conventional minor
modes are restored automatically; they should not be listed here."
Lars Hansen's avatar
Lars Hansen committed
317 318
  :type '(repeat symbol)
  :group 'desktop)
319

320
;; We skip .log files because they are normally temporary.
Karl Heuer's avatar
Karl Heuer committed
321
;;         (ftp) files because they require passwords and whatnot.
322
(defcustom desktop-buffers-not-to-save
323
  "\\(^nn\\.a[0-9]+\\|\\.log\\|(ftp)\\)$"
324 325 326
  "Regexp identifying buffers that are to be excluded from saving."
  :type 'regexp
  :group 'desktop)
Richard M. Stallman's avatar
Richard M. Stallman committed
327

Lars Hansen's avatar
Lars Hansen committed
328
;; Skip tramp and ange-ftp files
329
(defcustom desktop-files-not-to-save
330
  "^/[^/:]*:"
331 332 333
  "Regexp identifying files whose buffers are to be excluded from saving."
  :type 'regexp
  :group 'desktop)
334

335 336 337
;; We skip TAGS files to save time (tags-file-name is saved instead).
(defcustom desktop-modes-not-to-save
  '(tags-table-mode)
338 339 340 341
  "List of major modes whose buffers should not be saved."
  :type '(repeat symbol)
  :group 'desktop)

342 343 344 345 346 347 348
(defcustom desktop-file-name-format 'absolute
  "*Format in which desktop file names should be saved.
Possible values are:
   absolute -- Absolute file name.
   tilde    -- Relative to ~.
   local    -- Relative to directory of desktop file."
  :type '(choice (const absolute) (const tilde) (const local))
349
  :group 'desktop
350
  :version "22.1")
351

352 353 354 355
(defcustom desktop-restore-eager t
  "Number of buffers to restore immediately.
Remaining buffers are restored lazily (when Emacs is idle).
If value is t, all buffers are restored immediately."
356
  :type '(choice (const t) integer)
357
  :group 'desktop
358
  :version "22.1")
359 360 361 362 363

(defcustom desktop-lazy-verbose t
  "Verbose reporting of lazily created buffers."
  :type 'boolean
  :group 'desktop
364
  :version "22.1")
365 366 367 368 369 370

(defcustom desktop-lazy-idle-delay 5
  "Idle delay before starting to create buffers.
See `desktop-restore-eager'."
  :type 'integer
  :group 'desktop
371
  :version "22.1")
372

373
;;;###autoload
374 375
(defvar desktop-save-buffer nil
  "When non-nil, save buffer status in desktop file.
376
This variable becomes buffer local when set.
377

378 379
If the value is a function, it is called by `desktop-save' with argument
DESKTOP-DIRNAME to obtain auxiliary information to save in the desktop
380
file along with the state of the buffer for which it was called.
381

Lars Hansen's avatar
Lars Hansen committed
382
When file names are returned, they should be formatted using the call
383
\"(desktop-file-name FILE-NAME DESKTOP-DIRNAME)\".
384

385 386 387
Later, when `desktop-read' evaluates the desktop file, auxiliary information
is passed as the argument DESKTOP-BUFFER-MISC to functions in
`desktop-buffer-mode-handlers'.")
388 389
(make-variable-buffer-local 'desktop-save-buffer)
(make-obsolete-variable 'desktop-buffer-modes-to-save
390
                        'desktop-save-buffer "22.1")
391
(make-obsolete-variable 'desktop-buffer-misc-functions
392
                        'desktop-save-buffer "22.1")
393

394 395 396
;;;###autoload
(defvar desktop-buffer-mode-handlers
  nil
397
  "Alist of major mode specific functions to restore a desktop buffer.
398 399 400 401
Functions listed are called by `desktop-create-buffer' when `desktop-read'
evaluates the desktop file.  List elements must have the form

   (MAJOR-MODE . RESTORE-BUFFER-FUNCTION).
402 403 404 405

Buffers with a major mode not specified here, are restored by the default
handler `desktop-restore-file-buffer'.

406
Handlers are called with argument list
407

408
   (DESKTOP-BUFFER-FILE-NAME DESKTOP-BUFFER-NAME DESKTOP-BUFFER-MISC)
409 410 411 412

Furthermore, they may use the following variables:

   desktop-file-version
413 414 415 416 417 418 419
   desktop-buffer-major-mode
   desktop-buffer-minor-modes
   desktop-buffer-point
   desktop-buffer-mark
   desktop-buffer-read-only
   desktop-buffer-locals

420
If a handler returns a buffer, then the saved mode settings
421 422 423 424 425 426 427 428 429 430 431
and variable values for that buffer are copied into it.

Modules that define a major mode that needs a special handler should contain
code like

   (defun foo-restore-desktop-buffer
   ...
   (add-to-list 'desktop-buffer-mode-handlers
                '(foo-mode . foo-restore-desktop-buffer))

Furthermore the major mode function must be autoloaded.")
432

433
;;;###autoload
434 435
(put 'desktop-buffer-mode-handlers 'risky-local-variable t)
(make-obsolete-variable 'desktop-buffer-handlers
436
                        'desktop-buffer-mode-handlers "22.1")
437

438 439
(defcustom desktop-minor-mode-table
  '((auto-fill-function auto-fill-mode)
440 441
    (vc-mode nil)
    (vc-dired-mode nil))
442 443 444 445
  "Table mapping minor mode variables to minor mode functions.
Each entry has the form (NAME RESTORE-FUNCTION).
NAME is the name of the buffer-local variable indicating that the minor
mode is active.  RESTORE-FUNCTION is the function to activate the minor mode.
446
RESTORE-FUNCTION nil means don't try to restore the minor mode.
447
Only minor modes for which the name of the buffer-local variable
448
and the name of the minor mode function are different have to be added to
449
this table.  See also `desktop-minor-mode-handlers'."
450 451 452
  :type 'sexp
  :group 'desktop)

453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496
;;;###autoload
(defvar desktop-minor-mode-handlers
  nil
  "Alist of functions to restore non-standard minor modes.
Functions are called by `desktop-create-buffer' to restore minor modes.
List elements must have the form

   (MINOR-MODE . RESTORE-FUNCTION).

Minor modes not specified here, are restored by the standard minor mode
function.

Handlers are called with argument list

   (DESKTOP-BUFFER-LOCALS)

Furthermore, they may use the following variables:

   desktop-file-version
   desktop-buffer-file-name
   desktop-buffer-name
   desktop-buffer-major-mode
   desktop-buffer-minor-modes
   desktop-buffer-point
   desktop-buffer-mark
   desktop-buffer-read-only
   desktop-buffer-misc

When a handler is called, the buffer has been created and the major mode has
been set, but local variables listed in desktop-buffer-locals has not yet been
created and set.

Modules that define a minor mode that needs a special handler should contain
code like

   (defun foo-desktop-restore
   ...
   (add-to-list 'desktop-minor-mode-handlers
                '(foo-mode . foo-desktop-restore))

Furthermore the minor mode function must be autoloaded.

See also `desktop-minor-mode-table'.")

497
;;;###autoload
498 499
(put 'desktop-minor-mode-handlers 'risky-local-variable t)

500 501
;; ----------------------------------------------------------------------------
(defvar desktop-dirname nil
Lars Hansen's avatar
Lars Hansen committed
502
  "The directory in which the desktop file should be saved.")
Richard M. Stallman's avatar
Richard M. Stallman committed
503

504 505 506 507 508
(defun desktop-full-file-name (&optional dirname)
  "Return the full name of the desktop file in DIRNAME.
DIRNAME omitted or nil means use `desktop-dirname'."
  (expand-file-name desktop-base-file-name (or dirname desktop-dirname)))

509 510 511 512 513
(defun desktop-full-lock-name (&optional dirname)
  "Return the full name of the desktop lock file in DIRNAME.
DIRNAME omitted or nil means use `desktop-dirname'."
  (expand-file-name desktop-base-lock-name (or dirname desktop-dirname)))

Richard M. Stallman's avatar
Richard M. Stallman committed
514
(defconst desktop-header
515 516 517
";; --------------------------------------------------------------------------
;; Desktop File for Emacs
;; --------------------------------------------------------------------------
Richard M. Stallman's avatar
Richard M. Stallman committed
518
" "*Header to place in Desktop file.")
519 520 521

(defvar desktop-delay-hook nil
  "Hooks run after all buffers are loaded; intended for internal use.")
522

523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555
;; ----------------------------------------------------------------------------
;; Desktop file conflict detection
(defvar desktop-file-modtime nil
  "When the desktop file was last modified to the knowledge of this Emacs.
Used to detect desktop file conflicts.")

(defun desktop-owner (&optional dirname)
  "Return the PID of the Emacs process that owns the desktop file in DIRNAME.
Return nil if no desktop file found or no Emacs process is using it.
DIRNAME omitted or nil means use `desktop-dirname'."
  (let (owner)
    (and (file-exists-p (desktop-full-lock-name dirname))
	 (condition-case nil
	     (with-temp-buffer
	       (insert-file-contents-literally (desktop-full-lock-name dirname))
	       (goto-char (point-min))
	       (setq owner (read (current-buffer)))
	       (integerp owner))
	   (error nil))
	 owner)))

(defun desktop-claim-lock (&optional dirname)
  "Record this Emacs process as the owner of the desktop file in DIRNAME.
DIRNAME omitted or nil means use `desktop-dirname'."
  (write-region (number-to-string (emacs-pid)) nil
		(desktop-full-lock-name dirname)))

(defun desktop-release-lock (&optional dirname)
  "Remove the lock file for the desktop in DIRNAME.
DIRNAME omitted or nil means use `desktop-dirname'."
  (let ((file (desktop-full-lock-name dirname)))
    (when (file-exists-p file) (delete-file file))))

556
;; ----------------------------------------------------------------------------
557
(defun desktop-truncate (list n)
558
  "Truncate LIST to at most N elements destructively."
559
  (let ((here (nthcdr (1- n) list)))
560
    (if (consp here)
561
	(setcdr here nil))))
562

563
;; ----------------------------------------------------------------------------
564
;;;###autoload
565 566
(defun desktop-clear ()
  "Empty the Desktop.
567 568 569
This kills all buffers except for internal ones and those with names matched by
a regular expression in the list `desktop-clear-preserve-buffers'.
Furthermore, it clears the variables listed in `desktop-globals-to-clear'."
Richard M. Stallman's avatar
Richard M. Stallman committed
570
  (interactive)
571
  (desktop-lazy-abort)
572 573 574 575
  (dolist (var desktop-globals-to-clear)
    (if (symbolp var)
      (eval `(setq-default ,var nil))
      (eval `(setq-default ,(car var) ,(cdr var)))))
576 577 578 579 580 581 582
  (let ((buffers (buffer-list))
        (preserve-regexp (concat "^\\("
                                 (mapconcat (lambda (regexp)
                                              (concat "\\(" regexp "\\)"))
                                            desktop-clear-preserve-buffers
                                            "\\|")
                                 "\\)$")))
583
    (while buffers
584 585 586
      (let ((bufname (buffer-name (car buffers))))
         (or
           (null bufname)
587
           (string-match preserve-regexp bufname)
588
           ;; Don't kill buffers made for internal purposes.
589
           (and (not (equal bufname "")) (eq (aref bufname 0) ?\s))
590
           (kill-buffer (car buffers))))
591
      (setq buffers (cdr buffers))))
Richard M. Stallman's avatar
Richard M. Stallman committed
592
  (delete-other-windows))
593

594
;; ----------------------------------------------------------------------------
595
(add-hook 'kill-emacs-hook 'desktop-kill)
596

Richard M. Stallman's avatar
Richard M. Stallman committed
597
(defun desktop-kill ()
Lars Hansen's avatar
Lars Hansen committed
598
  "If `desktop-save-mode' is non-nil, do what `desktop-save' says to do.
599 600
If the desktop should be saved and `desktop-dirname'
is nil, ask the user where to save the desktop."
601 602 603 604 605 606 607 608
  (when (and desktop-save-mode
             (let ((exists (file-exists-p (desktop-full-file-name))))
               (or (eq desktop-save t)
                   (and exists (memq desktop-save '(ask-if-new if-exists)))
                   (and
                    (or (memq desktop-save '(ask ask-if-new))
                        (and exists (eq desktop-save 'ask-if-exists)))
                    (y-or-n-p "Save desktop? ")))))
609 610
    (unless desktop-dirname
      (setq desktop-dirname
611 612 613 614 615
            (file-name-as-directory
             (expand-file-name
              (call-interactively
               (lambda (dir)
                 (interactive "DDirectory for desktop file: ") dir))))))
616
    (condition-case err
617
	(desktop-save desktop-dirname t)
618
      (file-error
619
       (unless (yes-or-no-p "Error while saving the desktop.  Ignore? ")
620 621 622
	 (signal (car err) (cdr err))))))
  ;; If we own it, we don't anymore.
  (when (eq (emacs-pid) (desktop-owner)) (desktop-release-lock)))
623

624
;; ----------------------------------------------------------------------------
625 626 627 628 629 630 631 632 633 634 635
(defun desktop-list* (&rest args)
  (if (null (cdr args))
      (car args)
    (setq args (nreverse args))
    (let ((value (cons (nth 1 args) (car args))))
      (setq args (cdr (cdr args)))
      (while args
	(setq value (cons (car args) value))
	(setq args (cdr args)))
      value)))

636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675
;; ----------------------------------------------------------------------------
(defun desktop-buffer-info (buffer)
  (set-buffer buffer)
  (list
   ;; basic information
   (desktop-file-name (buffer-file-name) dirname)
   (buffer-name)
   major-mode
   ;; minor modes
   (let (ret)
     (mapc
      #'(lambda (minor-mode)
	  (and (boundp minor-mode)
	       (symbol-value minor-mode)
	       (let* ((special (assq minor-mode desktop-minor-mode-table))
		      (value (cond (special (cadr special))
				   ((functionp minor-mode) minor-mode))))
		 (when value (add-to-list 'ret value)))))
      (mapcar #'car minor-mode-alist))
     ret)
   ;; point and mark, and read-only status
   (point)
   (list (mark t) mark-active)
   buffer-read-only
   ;; auxiliary information
   (when (functionp desktop-save-buffer)
     (funcall desktop-save-buffer dirname))
   ;; local variables
   (let ((locals desktop-locals-to-save)
	 (loclist (buffer-local-variables))
	 (ll))
     (while locals
       (let ((here (assq (car locals) loclist)))
	 (if here
	     (setq ll (cons here ll))
	   (when (member (car locals) loclist)
	     (setq ll (cons (car locals) ll)))))
       (setq locals (cdr locals)))
     ll)))

676
;; ----------------------------------------------------------------------------
677
(defun desktop-internal-v2s (value)
Richard M. Stallman's avatar
Richard M. Stallman committed
678 679 680 681
  "Convert VALUE to a pair (QUOTE . TXT); (eval (read TXT)) gives VALUE.
TXT is a string that when read and evaluated yields value.
QUOTE may be `may' (value may be quoted),
`must' (values must be quoted), or nil (value may not be quoted)."
682
  (cond
683
   ((or (numberp value) (null value) (eq t value) (keywordp value))
684 685 686
    (cons 'may (prin1-to-string value)))
   ((stringp value)
    (let ((copy (copy-sequence value)))
687 688 689
      (set-text-properties 0 (length copy) nil copy)
      ;; Get rid of text properties because we cannot read them
      (cons 'may (prin1-to-string copy))))
690 691 692
   ((symbolp value)
    (cons 'must (prin1-to-string value)))
   ((vectorp value)
693 694 695 696 697 698 699
    (let* ((special nil)
	   (pass1 (mapcar
		   (lambda (el)
		     (let ((res (desktop-internal-v2s el)))
		       (if (null (car res))
			   (setq special t))
		       res))
700
		   value)))
701 702 703 704 705 706 707 708 709 710
      (if special
	  (cons nil (concat "(vector "
			    (mapconcat (lambda (el)
					 (if (eq (car el) 'must)
					     (concat "'" (cdr el))
					   (cdr el)))
				       pass1
				       " ")
			    ")"))
	(cons 'may (concat "[" (mapconcat 'cdr pass1 " ") "]")))))
711 712
   ((consp value)
    (let ((p value)
713
	  newlist
714
	  use-list*
715 716 717 718 719 720 721
	  anynil)
      (while (consp p)
	(let ((q.txt (desktop-internal-v2s (car p))))
	  (or anynil (setq anynil (null (car q.txt))))
	  (setq newlist (cons q.txt newlist)))
	(setq p (cdr p)))
      (if p
722
	  (let ((last (desktop-internal-v2s p)))
723 724 725 726 727
	    (or anynil (setq anynil (null (car last))))
	    (or anynil
		(setq newlist (cons '(must . ".") newlist)))
	    (setq use-list* t)
	    (setq newlist (cons last newlist))))
728 729 730
      (setq newlist (nreverse newlist))
      (if anynil
	  (cons nil
731
		(concat (if use-list* "(desktop-list* "  "(list ")
732 733 734 735 736 737 738 739 740
			(mapconcat (lambda (el)
				     (if (eq (car el) 'must)
					 (concat "'" (cdr el))
				       (cdr el)))
				   newlist
				   " ")
			")"))
	(cons 'must
	      (concat "(" (mapconcat 'cdr newlist " ") ")")))))
741
   ((subrp value)
742
    (cons nil (concat "(symbol-function '"
743
		      (substring (prin1-to-string value) 7 -1)
744
		      ")")))
745 746 747
   ((markerp value)
    (let ((pos (prin1-to-string (marker-position value)))
	  (buf (prin1-to-string (buffer-name (marker-buffer value)))))
748 749 750 751 752
      (cons nil (concat "(let ((mk (make-marker)))"
			" (add-hook 'desktop-delay-hook"
			" (list 'lambda '() (list 'set-marker mk "
			pos " (get-buffer " buf ")))) mk)"))))
   (t					; save as text
753
    (cons 'may "\"Unprintable entity\""))))
754

755
;; ----------------------------------------------------------------------------
756
(defun desktop-value-to-string (value)
Richard M. Stallman's avatar
Richard M. Stallman committed
757 758
  "Convert VALUE to a string that when read evaluates to the same value.
Not all types of values are supported."
759 760
  (let* ((print-escape-newlines t)
	 (float-output-format nil)
761
	 (quote.txt (desktop-internal-v2s value))
762 763 764 765 766
	 (quote (car quote.txt))
	 (txt (cdr quote.txt)))
    (if (eq quote 'must)
	(concat "'" txt)
      txt)))
767

768
;; ----------------------------------------------------------------------------
769 770 771
(defun desktop-outvar (varspec)
  "Output a setq statement for variable VAR to the desktop file.
The argument VARSPEC may be the variable name VAR (a symbol),
772
or a cons cell of the form (VAR . MAX-SIZE),
773 774 775 776 777 778 779 780 781 782 783
which means to truncate VAR's value to at most MAX-SIZE elements
\(if the value is a list) before saving the value."
  (let (var size)
    (if (consp varspec)
	(setq var (car varspec) size (cdr varspec))
      (setq var varspec))
    (if (boundp var)
	(progn
	  (if (and (integerp size)
		   (> size 0)
		   (listp (eval var)))
784
	      (desktop-truncate (eval var) size))
785 786 787 788 789
	  (insert "(setq "
		  (symbol-name var)
		  " "
		  (desktop-value-to-string (symbol-value var))
		  ")\n")))))
790

791
;; ----------------------------------------------------------------------------
792
(defun desktop-save-buffer-p (filename bufname mode &rest dummy)
793
  "Return t if buffer should have its state saved in the desktop file.
794
FILENAME is the visited file name, BUFNAME is the buffer name, and
795 796
MODE is the major mode.
\n\(fn FILENAME BUFNAME MODE)"
797
  (let ((case-fold-search nil))
798
    (and (not (string-match desktop-buffers-not-to-save bufname))
799 800 801 802 803 804 805 806 807
         (not (memq mode desktop-modes-not-to-save))
         (or (and filename
                  (not (string-match desktop-files-not-to-save filename)))
             (and (eq mode 'dired-mode)
                  (with-current-buffer bufname
                    (not (string-match desktop-files-not-to-save
                                       default-directory))))
             (and (null filename)
		  (with-current-buffer bufname desktop-save-buffer))))))
808

809
;; ----------------------------------------------------------------------------
810 811 812 813 814 815 816 817 818 819 820 821 822 823
(defun desktop-file-name (filename dirname)
  "Convert FILENAME to format specified in `desktop-file-name-format'.
DIRNAME must be the directory in which the desktop file will be saved."
  (cond
    ((not filename) nil)
    ((eq desktop-file-name-format 'tilde)
     (let ((relative-name (file-relative-name (expand-file-name filename) "~")))
       (cond
         ((file-name-absolute-p relative-name) relative-name)
         ((string= "./" relative-name) "~/")
         ((string= "." relative-name) "~")
         (t (concat "~/" relative-name)))))
    ((eq desktop-file-name-format 'local) (file-relative-name filename dirname))
    (t (expand-file-name filename))))
824

825
;; ----------------------------------------------------------------------------
826
;;;###autoload
827
(defun desktop-save (dirname &optional release)
Lars Hansen's avatar
Lars Hansen committed
828 829
  "Save the desktop in a desktop file.
Parameter DIRNAME specifies where to save the desktop file.
830
Optional parameter RELEASE says whether we're done with this desktop.
Lars Hansen's avatar
Lars Hansen committed
831
See also `desktop-base-file-name'."
Richard M. Stallman's avatar
Richard M. Stallman committed
832
  (interactive "DDirectory to save desktop file in: ")
833
  (setq desktop-dirname (file-name-as-directory (expand-file-name dirname)))
Richard M. Stallman's avatar
Richard M. Stallman committed
834
  (save-excursion
835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890
    (let ((eager desktop-restore-eager)
	  (new-modtime (nth 5 (file-attributes (desktop-full-file-name)))))
      (when
	  (or (not new-modtime)		; nothing to overwrite
	      (equal desktop-file-modtime new-modtime)
	      (yes-or-no-p (if desktop-file-modtime
			       (if (> (float-time new-modtime) (float-time desktop-file-modtime))
				   "Desktop file is more recent than the one loaded.  Save anyway? "
				 "Desktop file isn't the one loaded.  Overwrite it? ")
			     "Current desktop was not loaded from a file.  Overwrite this desktop file? "))
	      (unless release (error "Desktop file conflict")))

	;; If we're done with it, release the lock.
	;; Otherwise, claim it if it's unclaimed or if we created it.
	(if release
	    (desktop-release-lock)
	  (unless (and new-modtime (desktop-owner)) (desktop-claim-lock)))

	(with-temp-buffer
	  (insert
	   ";; -*- mode: emacs-lisp; coding: emacs-mule; -*-\n"
	   desktop-header
	   ";; Created " (current-time-string) "\n"
	   ";; Desktop file format version " desktop-file-version "\n"
	   ";; Emacs version " emacs-version "\n")
	  (save-excursion (run-hooks 'desktop-save-hook))
	  (goto-char (point-max))
	  (insert "\n;; Global section:\n")
	  (mapc (function desktop-outvar) desktop-globals-to-save)
	  (when (memq 'kill-ring desktop-globals-to-save)
	    (insert
	     "(setq kill-ring-yank-pointer (nthcdr "
	     (int-to-string (- (length kill-ring) (length kill-ring-yank-pointer)))
	     " kill-ring))\n"))

	  (insert "\n;; Buffer section -- buffers listed in same order as in buffer list:\n")
	  (dolist (l (mapcar 'desktop-buffer-info (buffer-list)))
	    (when (apply 'desktop-save-buffer-p l)
	      (insert "("
		      (if (or (not (integerp eager))
			      (if (zerop eager)
				  nil
				(setq eager (1- eager))))
			  "desktop-create-buffer"
			"desktop-append-buffer-args")
		      " "
		      desktop-file-version)
	      (dolist (e l)
		(insert "\n  " (desktop-value-to-string e)))
	      (insert ")\n\n")))

	  (setq default-directory dirname)
	  (let ((coding-system-for-write 'emacs-mule))
	    (write-region (point-min) (point-max) (desktop-full-file-name) nil 'nomessage))
	  ;; We remember when it was modified (which is presumably just now).
	  (setq desktop-file-modtime (nth 5 (file-attributes (desktop-full-file-name)))))))))
891

892
;; ----------------------------------------------------------------------------
893
;;;###autoload
Richard M. Stallman's avatar
Richard M. Stallman committed
894
(defun desktop-remove ()
Lars Hansen's avatar
Lars Hansen committed
895 896
  "Delete desktop file in `desktop-dirname'.
This function also sets `desktop-dirname' to nil."
Richard M. Stallman's avatar
Richard M. Stallman committed
897
  (interactive)
Lars Hansen's avatar
Lars Hansen committed
898
  (when desktop-dirname
899
    (let ((filename (desktop-full-file-name)))
Lars Hansen's avatar
Lars Hansen committed
900 901
      (setq desktop-dirname nil)
      (when (file-exists-p filename)
902
        (delete-file filename)))))
Lars Hansen's avatar
Lars Hansen committed
903

904 905 906 907 908
(defvar desktop-buffer-args-list nil
  "List of args for `desktop-create-buffer'.")

(defvar desktop-lazy-timer nil)

909
;; ----------------------------------------------------------------------------
910
;;;###autoload
Lars Hansen's avatar
Lars Hansen committed
911 912 913 914
(defun desktop-read (&optional dirname)
  "Read and process the desktop file in directory DIRNAME.
Look for a desktop file in DIRNAME, or if DIRNAME is omitted, look in
directories listed in `desktop-path'.  If a desktop file is found, it
915
is processed and `desktop-after-read-hook' is run.  If no desktop file
Lars Hansen's avatar
Lars Hansen committed
916 917 918
is found, clear the desktop and run `desktop-no-desktop-file-hook'.
This function is a no-op when Emacs is running in batch mode.
It returns t if a desktop file was loaded, nil otherwise."
Richard M. Stallman's avatar
Richard M. Stallman committed
919
  (interactive)
920
  (unless noninteractive
Lars Hansen's avatar
Lars Hansen committed
921
    (setq desktop-dirname
922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938
          (file-name-as-directory
           (expand-file-name
            (or
             ;; If DIRNAME is specified, use it.
             (and (< 0 (length dirname)) dirname)
             ;; Otherwise search desktop file in desktop-path.
             (let ((dirs desktop-path))
               (while (and dirs
                           (not (file-exists-p
                                 (desktop-full-file-name (car dirs)))))
                 (setq dirs (cdr dirs)))
               (and dirs (car dirs)))
             ;; If not found and `desktop-path' is non-nil, use its first element.
             (and desktop-path (car desktop-path))
             ;; Default: Home directory.
             "~"))))
    (if (file-exists-p (desktop-full-file-name))
939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985
	;; Desktop file found, but is it already in use?
	(let ((desktop-first-buffer nil)
	      (desktop-buffer-ok-count 0)
	      (desktop-buffer-fail-count 0)
	      (owner (desktop-owner))
	      ;; Avoid desktop saving during evaluation of desktop buffer.
	      (desktop-save nil))
	  (if (and owner
		   (not (y-or-n-p (format "Warning: desktop file appears to be in use by PID %s.\n\
Using it may cause conflicts.  Use it anyway? " owner))))
	      (progn (setq desktop-dirname nil)
		     (let ((default-directory desktop-dirname))
		       (run-hooks 'desktop-not-loaded-hook))
		     (message "Desktop file in use; not loaded."))
	    (desktop-lazy-abort)
	    ;; Evaluate desktop buffer and remember when it was modified.
	    (load (desktop-full-file-name) t t t)
	    (setq desktop-file-modtime (nth 5 (file-attributes (desktop-full-file-name))))
	    ;; If it wasn't already, mark it as in-use, to bother other
	    ;; desktop instances.
	    (unless owner
	      (condition-case nil
		  (desktop-claim-lock)
		(file-error (message "Couldn't record use of desktop file")
			    (sit-for 1))))

	    ;; `desktop-create-buffer' puts buffers at end of the buffer list.
	    ;; We want buffers existing prior to evaluating the desktop (and
	    ;; not reused) to be placed at the end of the buffer list, so we
	    ;; move them here.
	    (mapc 'bury-buffer
		  (nreverse (cdr (memq desktop-first-buffer (nreverse (buffer-list))))))
	    (switch-to-buffer (car (buffer-list)))
	    (run-hooks 'desktop-delay-hook)
	    (setq desktop-delay-hook nil)
	    (run-hooks 'desktop-after-read-hook)
	    (message "Desktop: %d buffer%s restored%s%s."
		     desktop-buffer-ok-count
		     (if (= 1 desktop-buffer-ok-count) "" "s")
		     (if (< 0 desktop-buffer-fail-count)
			 (format ", %d failed to restore" desktop-buffer-fail-count)
		       "")
		     (if desktop-buffer-args-list
			 (format ", %d to restore lazily"
				 (length desktop-buffer-args-list))
		       ""))
	    t))
Lars Hansen's avatar
Lars Hansen committed
986 987 988 989 990 991
      ;; No desktop file found.
      (desktop-clear)
      (let ((default-directory desktop-dirname))
        (run-hooks 'desktop-no-desktop-file-hook))
      (message "No desktop file.")
      nil)))
992

993
;; ----------------------------------------------------------------------------
Lars Hansen's avatar
Lars Hansen committed
994
;; Maintained for backward compatibility
995
;;;###autoload
Richard M. Stallman's avatar
Richard M. Stallman committed
996
(defun desktop-load-default ()
Richard M. Stallman's avatar
Richard M. Stallman committed
997
  "Load the `default' start-up library manually.
Lars Hansen's avatar
Lars Hansen committed
998
Also inhibit further loading of it."
999 1000 1001 1002 1003
  (unless inhibit-default-init	        ; safety check
    (load "default" t t)
    (setq inhibit-default-init t)))
(make-obsolete 'desktop-load-default
               'desktop-save-mode "22.1")
1004 1005 1006

;; ----------------------------------------------------------------------------
;;;###autoload
Lars Hansen's avatar
Lars Hansen committed
1007 1008 1009 1010 1011 1012 1013
(defun desktop-change-dir (dirname)
  "Change to desktop saved in DIRNAME.
Kill the desktop as specified by variables `desktop-save-mode' and
`desktop-save', then clear the desktop and load the desktop file in
directory DIRNAME."
  (interactive "DChange to directory: ")
  (setq dirname (file-name-as-directory (expand-file-name dirname desktop-dirname)))
1014 1015
  (desktop-kill)
  (desktop-clear)
Lars Hansen's avatar
Lars Hansen committed
1016
  (desktop-read dirname))
1017

Lars Hansen's avatar
Lars Hansen committed
1018
;; ----------------------------------------------------------------------------
1019
;;;###autoload
Lars Hansen's avatar
Lars Hansen committed
1020 1021
(defun desktop-save-in-desktop-dir ()
  "Save the desktop in directory `desktop-dirname'."
1022 1023
  (interactive)
  (if desktop-dirname
1024
      (desktop-save desktop-dirname)
1025 1026 1027 1028 1029 1030 1031 1032
    (call-interactively 'desktop-save))
  (message "Desktop saved in %s" desktop-dirname))

;; ----------------------------------------------------------------------------
;;;###autoload
(defun desktop-revert ()
  "Revert to the last loaded desktop."
  (interactive)
Lars Hansen's avatar
Lars Hansen committed
1033 1034
  (unless desktop-dirname
    (error "Unknown desktop directory"))
1035
  (unless (file-exists-p (desktop-full-file-name))
Lars Hansen's avatar
Lars Hansen committed
1036 1037 1038
    (error "No desktop file found"))
  (desktop-clear)
  (desktop-read desktop-dirname))
1039

1040 1041
(defvar desktop-buffer-major-mode)
(defvar desktop-buffer-locals)
1042
;; ----------------------------------------------------------------------------
1043 1044 1045 1046
(defun desktop-restore-file-buffer (desktop-buffer-file-name
                                    desktop-buffer-name
                                    desktop-buffer-misc)
  "Restore a file buffer."
1047 1048
  (if desktop-buffer-file-name
      (if (or (file-exists-p desktop-buffer-file-name)
1049 1050 1051
              (let ((msg (format "Desktop: File \"%s\" no longer exists."
                                 desktop-buffer-file-name)))
                 (if desktop-missing-file-warning
1052
		     (y-or-n-p (concat msg " Re-create buffer? "))
Deepak Goel's avatar
Deepak Goel committed
1053
                   (message "%s" msg)
1054
                   nil)))
1055 1056 1057 1058 1059 1060
	  (let* ((auto-insert nil) ; Disable auto insertion
		 (coding-system-for-read
		  (or coding-system-for-read
		      (cdr (assq 'buffer-file-coding-system
				 desktop-buffer-locals))))
		 (buf (find-file-noselect desktop-buffer-file-name)))
1061 1062
	    (condition-case nil
		(switch-to-buffer buf)
1063
	      (error (pop-to-buffer buf)))
1064 1065 1066
	    (and (not (eq major-mode desktop-buffer-major-mode))
		 (functionp desktop-buffer-major-mode)
		 (funcall desktop-buffer-major-mode))
1067
	    buf)
1068
	nil)))
1069

1070 1071
(defun desktop-load-file (function)
  "Load the file where auto loaded FUNCTION is defined."
1072
  (when function
1073
    (let ((fcell (and (fboundp function) (symbol-function function))))
1074 1075 1076
      (when (and (listp fcell)
                 (eq 'autoload (car fcell)))
        (load (cadr fcell))))))
1077

1078
;; ----------------------------------------------------------------------------
Juri Linkov's avatar
Juri Linkov committed
1079 1080
;; Create a buffer, load its file, set its mode, ...;
;; called from Desktop file only.
1081

1082
;; Just to silence the byte compiler.
1083 1084 1085 1086 1087 1088

(defvar desktop-first-buffer)          ; Dynamically bound in `desktop-read'

;; Bound locally in `desktop-read'.
(defvar desktop-buffer-ok-count)
(defvar desktop-buffer-fail-count)
1089