;;; vc.el --- drive a version-control system from within Emacs
;; Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000,
-;; 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
+;; 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
;; Free Software Foundation, Inc.
;; Author: FSF (see below for full credits)
;; vc's back is turned, or move/rename master files while vc is running,
;; vc may get seriously confused. Don't do these things!
;;
-;; Developer's notes on some concurrency issues are included at the end of
-;; the file.
-;;
;; ADDING SUPPORT FOR OTHER BACKENDS
;;
;; VC can use arbitrary version control systems as a backend. To add
;; and then do a (funcall UPDATE-FUNCTION RESULT nil)
;; when all the results have been computed.
;; To provide more backend specific functionality for `vc-dir'
-;; the following functions might be needed: `status-extra-headers',
-;; `status-printer', `extra-status-menu' and `dir-status-files'.
+;; the following functions might be needed: `dir-extra-headers',
+;; `dir-printer', `extra-dir-menu' and `dir-status-files'.
;;
;; - dir-status-files (dir files default-state update-function)
;;
;; files. If not provided, the default is to consider that the files
;; are in DEFAULT-STATE.
;;
-;; - status-extra-headers (dir)
+;; - dir-extra-headers (dir)
;;
;; Return a string that will be added to the *vc-dir* buffer header.
;;
-;; - status-printer (fileinfo)
+;; - dir-printer (fileinfo)
;;
;; Pretty print the `vc-dir-fileinfo' FILEINFO.
;; If a backend needs to show more information than the default FILE
;;
;; MISCELLANEOUS
;;
-;; - root (dir)
-;;
-;; Return DIR's "root" directory, that is, a parent directory of
-;; DIR for which the same backend as used for DIR applies. If no
-;; such parent exists, this function should return DIR.
-;;
;; - make-version-backups-p (file)
;;
;; Return non-nil if unmodified repository revisions of FILE should be
;; to your backend and which does not map to any of the VC generic
;; concepts.
;;
-;; - extra-status-menu ()
+;; - extra-dir-menu ()
;;
;; Return a menu keymap, the items in the keymap will appear at the
;; end of the VC Status menu. The goal is to allow backends to
;; `diff-add-change-log-entries-other-window' to create a detailed
;; skeleton for the log...
;;
-;; - The *vc-dir* buffer needs to be updated properly after VC
-;; operations on directories that change the file VC state.
-;;
;; - most vc-dir backends need more work. They might need to
;; provide custom headers, use the `extra' field and deal with all
;; possible VC states.
;; vc-dir, it is possible that these commands are called
;; for unregistered/ignored files.
;;
-;; - Using multiple backends needs work. Given a CVS directory with some
-;; files checked into git (but not all), using C-x v l to get a log file
-;; from a file only present in git, and then typing RET on some log entry,
-;; vc will bombs out because it wants to see the file being in CVS.
-;; Those logs should likely use a local variable to hardware the VC they
-;; are supposed to work with.
+;; - vc-next-action needs work in order to work with multiple
+;; backends: `vc-state' returns the state for the default backend,
+;; not for the backend in the current *vc-dir* buffer.
;;
-;;;; Problems:
+;; - vc-dir-kill-dir-status-process should not be specific to dir-status,
+;; it should work for other async commands done through vc-do-command
+;; as well,
;;
-;; - the *vc-dir* buffer is not updated correctly anymore after VC
-;; operations that change the file state.
+;; - vc-dir toolbar needs more icons.
+;;
+;; - The backends should avoid using `vc-file-setprop' and `vc-file-getprop'.
;;
;;; Code:
(require 'vc-hooks)
(require 'vc-dispatcher)
-(require 'tool-bar)
-(require 'ewoc)
(eval-when-compile
(require 'cl))
(defcustom vc-diff-switches nil
"A string or list of strings specifying switches for diff under VC.
-When running diff under a given BACKEND, VC concatenates the values of
-`diff-switches', `vc-diff-switches', and `vc-BACKEND-diff-switches' to
-get the switches for that command. Thus, `vc-diff-switches' should
-contain switches that are specific to version control, but not
-specific to any particular backend."
- :type '(choice (const :tag "None" nil)
+When running diff under a given BACKEND, VC uses the first
+non-nil value of `vc-BACKEND-diff-switches', `vc-diff-switches',
+and `diff-switches', in that order. Since nil means to check the
+next variable in the sequence, either of the first two may use
+the value t to mean no switches at all. `vc-diff-switches'
+should contain switches that are specific to version control, but
+not specific to any particular backend."
+ :type '(choice (const :tag "Unspecified" nil)
+ (const :tag "None" t)
(string :tag "Argument String")
- (repeat :tag "Argument List"
- :value ("")
- string))
+ (repeat :tag "Argument List" :value ("") string))
:group 'vc
:version "21.1")
(defcustom vc-diff-knows-L nil
- "*Indicates whether diff understands the -L option.
+ "Indicates whether diff understands the -L option.
The value is either `yes', `no', or nil. If it is nil, VC tries
to use -L and sets this variable to remember whether it worked."
:type '(choice (const :tag "Work out" nil) (const yes) (const no))
(defcustom vc-static-header-alist
'(("\\.c\\'" .
"\n#ifndef lint\nstatic char vcid[] = \"\%s\";\n#endif /* lint */\n"))
- "*Associate static header string templates with file types.
+ "Associate static header string templates with file types.
A \%s in the template is replaced with the first string associated with
the file's version control type in `vc-header-alist'."
:type '(repeat (cons :format "%v"
(defcustom vc-comment-alist
'((nroff-mode ".\\\"" ""))
- "*Special comment delimiters for generating VC headers.
+ "Special comment delimiters for generating VC headers.
Add an entry in this list if you need to override the normal `comment-start'
and `comment-end' variables. This will only be necessary if the mode language
is sensitive to blank lines."
:group 'vc)
(defcustom vc-checkout-carefully (= (user-uid) 0)
- "*Non-nil means be extra-careful in checkout.
+ "Non-nil means be extra-careful in checkout.
Verify that the file really is not locked
and that its contents match what the master file says."
:type 'boolean
(vc-parent-buffer (vc-derived-from-dir-mode vc-parent-buffer))
(t nil))))
-(defvar vc-dir-backend nil
- "The backend used by the current *vc-dir* buffer.")
+(defvar vc-dir-backend)
;; FIXME: this is not functional, commented out.
;; (defun vc-deduce-fileset (&optional observer)
;; (vc-backend (car cooked)))))
;; (cons backend selection)))
-(defun vc-deduce-fileset (&optional observer allow-unregistered only-files)
+(declare-function vc-dir-current-file "vc-dir" ())
+(declare-function vc-dir-deduce-fileset "vc-dir" (&optional state-model-only-files))
+
+(defun vc-deduce-fileset (&optional observer allow-unregistered
+ state-model-only-files)
"Deduce a set of files and a backend to which to apply an operation.
-Return (BACKEND FILESET FILESET-ONLY-FILES).
+Return (BACKEND FILESET FILESET-ONLY-FILES STATE CHECKOUT-MODEL).
If we're in VC-dir mode, the fileset is the list of marked files.
Otherwise, if we're looking at a buffer visiting a version-controlled file,
the fileset is a singleton containing this file.
If none of these conditions is met, but ALLOW_UNREGISTERED is on and the
visited file is not registered, return a singleton fileset containing it.
Otherwise, throw an error.
-ONLY-FILES if non-nil, means that the caller needs to FILESET-ONLY-FILES
-info. Otherwise, that part may be skipped.
-BEWARE: this function may change the current buffer."
+
+STATE-MODEL-ONLY-FILES if non-nil, means that the caller needs
+the FILESET-ONLY-FILES STATE and MODEL info. Otherwise, that
+part may be skipped.
+BEWARE: this function may change the
+current buffer."
;; FIXME: OBSERVER is unused. The name is not intuitive and is not
;; documented. It's set to t when called from diff and print-log.
(let (backend)
(cond
((derived-mode-p 'vc-dir-mode)
- (let ((marked (vc-dir-marked-files)))
- (if marked
- (list vc-dir-backend marked
- (if only-files (vc-dir-marked-only-files)))
- (let ((crt (vc-dir-current-file)))
- (list vc-dir-backend (list crt)
- (if only-files (vc-dir-child-files)))))))
+ (vc-dir-deduce-fileset state-model-only-files))
((setq backend (vc-backend buffer-file-name))
- (list backend (list buffer-file-name) (list buffer-file-name)))
+ (if state-model-only-files
+ (list backend (list buffer-file-name)
+ (list buffer-file-name)
+ (vc-state buffer-file-name)
+ (vc-checkout-model backend buffer-file-name))
+ (list backend (list buffer-file-name))))
((and (buffer-live-p vc-parent-buffer)
;; FIXME: Why this test? --Stef
(or (buffer-file-name vc-parent-buffer)
(eq major-mode 'vc-dir-mode))))
(progn ;FIXME: Why not `with-current-buffer'? --Stef.
(set-buffer vc-parent-buffer)
- (vc-deduce-fileset observer allow-unregistered only-files)))
+ (vc-deduce-fileset observer allow-unregistered state-model-only-files)))
((not buffer-file-name)
(error "Buffer %s is not associated with a file" (buffer-name)))
((and allow-unregistered (not (vc-registered buffer-file-name)))
- (list (vc-responsible-backend
- (file-name-directory (buffer-file-name)))
- (list buffer-file-name) (list buffer-file-name)))
+ (if state-model-only-files
+ (list (vc-responsible-backend
+ (file-name-directory (buffer-file-name)))
+ (list buffer-file-name)
+ (list buffer-file-name)
+ (when state-model-only-files 'unregistered)
+ nil)
+ (list (vc-responsible-backend
+ (file-name-directory (buffer-file-name)))
+ (list buffer-file-name))))
(t (error "No fileset is available here.")))))
(defun vc-ensure-vc-buffer ()
"Make sure that the current buffer visits a version-controlled file."
(cond
- ((vc-dispatcher-browsing)
+ ((derived-mode-p 'vc-dir-mode)
(set-buffer (find-file-noselect (vc-dir-current-file))))
(t
(while (and vc-parent-buffer
If the repository file is changed, you are asked if you want to
merge in the changes into your working copy."
(interactive "P")
- (let* ((vc-fileset (vc-deduce-fileset nil t 'only-files))
+ (let* ((vc-fileset (vc-deduce-fileset nil t 'state-model-only-files))
(backend (car vc-fileset))
(files (nth 1 vc-fileset))
(fileset-only-files (nth 2 vc-fileset))
;; FIXME: We used to call `vc-recompute-state' here.
- (state (vc-state (car fileset-only-files)))
+ (state (nth 3 vc-fileset))
;; The backend should check that the checkout-model is consistent
;; among all the `files'.
- (model
- ;; FIXME: This is not very elegant...
- (when (and state (not (eq state 'unregistered)))
- (vc-checkout-model backend files)))
+ (model (nth 4 vc-fileset))
revision)
- ;; Check that all files are in a consistent state, since we use that
- ;; state to decide which operation to perform.
- (dolist (file (cdr fileset-only-files))
- (unless (vc-compatible-state (vc-state file) state)
- (error "%s:%s clashes with %s:%s"
- file (vc-state file) (car fileset-only-files) state)))
-
;; Do the right thing
(cond
((eq state 'missing)
;; finishing the log entry and committing.
(not (and visited (buffer-modified-p))))
(vc-revert-file file)
- (delete file ready-for-commit)))))
+ (setq ready-for-commit (delete file ready-for-commit))))))
;; Remaining files need to be committed
(if (not ready-for-commit)
(message "No files remain to be committed")
(run-hooks 'vc-checkout-hook))
(defun vc-mark-resolved (backend files)
- (with-vc-properties
- files
- (vc-call-backend backend 'mark-resolved files)
- ;; XXX: Is this TRTD? Might not be.
- `((vc-state . edited))))
+ (prog1 (with-vc-properties
+ files
+ (vc-call-backend backend 'mark-resolved files)
+ ;; FIXME: Is this TRTD? Might not be.
+ `((vc-state . edited)))
+ (message
+ (substitute-command-keys
+ "Conflicts have been resolved in %s. \
+Type \\[vc-next-action] to check in changes.")
+ (if (> (length files) 1)
+ (format "%d files" (length files))
+ "this file"))))
(defun vc-steal-lock (file rev owner)
"Steal the lock on FILE."
'undecided))
(defun vc-switches (backend op)
+ "Return a list of vc-BACKEND switches for operation OP.
+BACKEND is a symbol such as `CVS', which will be downcased.
+OP is a symbol such as `diff'.
+
+In decreasing order of preference, return the value of:
+vc-BACKEND-OP-switches (e.g. `vc-cvs-diff-switches');
+vc-OP-switches (e.g. `vc-diff-switches'); or, in the case of
+diff only, `diff-switches'.
+
+If the chosen value is not a string or a list, return nil.
+This is so that you may set, e.g. `vc-svn-diff-switches' to t in order
+to override the value of `vc-diff-switches' and `diff-switches'."
(let ((switches
(or (when backend
(let ((sym (vc-make-backend-sym
;;;###autoload
(defalias 'vc-resolve-conflicts 'smerge-ediff)
-;; VC status implementation
-
-(defun vc-default-status-extra-headers (backend dir)
- ;; Be loud by default to remind people to add code to display
- ;; backend specific headers.
- ;; XXX: change this to return nil before the release.
- (concat
- (propertize "Extra : " 'face 'font-lock-type-face)
- (propertize "Please add backend specific headers here. It's easy!"
- 'face 'font-lock-warning-face)))
-
-(defun vc-dir-headers (backend dir)
- "Display the headers in the *VC dir* buffer.
-It calls the `status-extra-headers' backend method to display backend
-specific headers."
- (concat
- (propertize "VC backend : " 'face 'font-lock-type-face)
- (propertize (format "%s\n" backend) 'face 'font-lock-variable-name-face)
- (propertize "Working dir: " 'face 'font-lock-type-face)
- (propertize (format "%s\n" dir) 'face 'font-lock-variable-name-face)
- (vc-call-backend backend 'status-extra-headers dir)
- "\n"))
-
-(defun vc-default-status-printer (backend fileentry)
- "Pretty print FILEENTRY."
- ;; If you change the layout here, change vc-dir-move-to-goal-column.
- (let* ((isdir (vc-dir-fileinfo->directory fileentry))
- (state (if isdir 'DIRECTORY (vc-dir-fileinfo->state fileentry)))
- (filename (vc-dir-fileinfo->name fileentry)))
- ;; FIXME: Backends that want to print the state in a different way
- ;; can do it by defining the `status-printer' function. Using
- ;; `prettify-state-info' adds two extra vc-calls per item, which
- ;; is too expensive.
- ;;(prettified (if isdir state (vc-call-backend backend 'prettify-state-info filename))))
- (insert
- (propertize
- (format "%c" (if (vc-dir-fileinfo->marked fileentry) ?* ? ))
- 'face 'font-lock-type-face)
- " "
- (propertize
- (format "%-20s" state)
- 'face (cond ((eq state 'up-to-date) 'font-lock-builtin-face)
- ((memq state '(missing conflict)) 'font-lock-warning-face)
- (t 'font-lock-variable-name-face))
- 'mouse-face 'highlight)
- " "
- (propertize
- (format "%s" filename)
- 'face 'font-lock-function-name-face
- 'mouse-face 'highlight))))
-
-(defun vc-default-extra-status-menu (backend)
- nil)
-
-(defun vc-dir-refresh-files (files default-state)
- "Refresh some files in the *VC-dir* buffer."
- (let ((def-dir default-directory)
- (backend vc-dir-backend))
- (vc-set-mode-line-busy-indicator)
- ;; Call the `dir-status-file' backend function.
- ;; `dir-status-file' is supposed to be asynchronous.
- ;; It should compute the results, and then call the function
- ;; passed as an argument in order to update the vc-dir buffer
- ;; with the results.
- (unless (buffer-live-p vc-dir-process-buffer)
- (setq vc-dir-process-buffer
- (generate-new-buffer (format " *VC-%s* tmp status" backend))))
- (lexical-let ((buffer (current-buffer)))
- (with-current-buffer vc-dir-process-buffer
- (cd def-dir)
- (erase-buffer)
- (vc-call-backend
- backend 'dir-status-files def-dir files default-state
- (lambda (entries &optional more-to-come)
- ;; ENTRIES is a list of (FILE VC_STATE EXTRA) items.
- ;; If MORE-TO-COME is true, then more updates will come from
- ;; the asynchronous process.
- (with-current-buffer buffer
- (vc-dir-update entries buffer)
- (unless more-to-come
- (setq mode-line-process nil)
- ;; Remove the ones that haven't been updated at all.
- ;; Those not-updated are those whose state is nil because the
- ;; file/dir doesn't exist and isn't versioned.
- (ewoc-filter vc-ewoc
- (lambda (info)
- ;; The state for directory entries might
- ;; have been changed to 'up-to-date,
- ;; reset it, othewise it will be removed when doing 'x'
- ;; next time.
- ;; FIXME: There should be a more elegant way to do this.
- (when (and (vc-dir-fileinfo->directory info)
- (eq (vc-dir-fileinfo->state info)
- 'up-to-date))
- (setf (vc-dir-fileinfo->state info) nil))
-
- (not (vc-dir-fileinfo->needs-update info))))))))))))
-
-(defun vc-dir-refresh ()
- "Refresh the contents of the *VC-dir* buffer.
-Throw an error if another update process is in progress."
- (interactive)
- (if (vc-dir-busy)
- (error "Another update process is in progress, cannot run two at a time")
- (let ((def-dir default-directory)
- (backend vc-dir-backend))
- (vc-set-mode-line-busy-indicator)
- ;; Call the `dir-status' backend function.
- ;; `dir-status' is supposed to be asynchronous.
- ;; It should compute the results, and then call the function
- ;; passed as an argument in order to update the vc-dir buffer
- ;; with the results.
-
- ;; Create a buffer that can be used by `dir-status' and call
- ;; `dir-status' with this buffer as the current buffer. Use
- ;; `vc-dir-process-buffer' to remember this buffer, so that
- ;; it can be used later to kill the update process in case it
- ;; takes too long.
- (unless (buffer-live-p vc-dir-process-buffer)
- (setq vc-dir-process-buffer
- (generate-new-buffer (format " *VC-%s* tmp status" backend))))
- ;; set the needs-update flag on all entries
- (ewoc-map (lambda (info) (setf (vc-dir-fileinfo->needs-update info) t) nil)
- vc-ewoc)
- (lexical-let ((buffer (current-buffer)))
- (with-current-buffer vc-dir-process-buffer
- (cd def-dir)
- (erase-buffer)
- (vc-call-backend
- backend 'dir-status def-dir
- (lambda (entries &optional more-to-come)
- ;; ENTRIES is a list of (FILE VC_STATE EXTRA) items.
- ;; If MORE-TO-COME is true, then more updates will come from
- ;; the asynchronous process.
- (with-current-buffer buffer
- (vc-dir-update entries buffer)
- (unless more-to-come
- (let ((remaining
- (ewoc-collect
- vc-ewoc 'vc-dir-fileinfo->needs-update)))
- (if remaining
- (vc-dir-refresh-files
- (mapcar 'vc-dir-fileinfo->name remaining)
- 'up-to-date)
- (setq mode-line-process nil))))))))))))
-
-(defun vc-dir-show-fileentry (file)
- "Insert an entry for a specific file into the current *VC-dir* listing.
-This is typically used if the file is up-to-date (or has been added
-outside of VC) and one wants to do some operation on it."
- (interactive "fShow file: ")
- (vc-dir-update (list (list (file-relative-name file) (vc-state file))) (current-buffer)))
-
-(defun vc-dir-hide-up-to-date ()
- "Hide up-to-date items from display."
- (interactive)
- (ewoc-filter
- vc-ewoc
- (lambda (crt) (not (eq (vc-dir-fileinfo->state crt) 'up-to-date)))))
-
-(defun vc-default-status-fileinfo-extra (backend file)
- "Default absence of extra information returned for a file."
- nil)
-
-;; FIXME: Replace these with a more efficient dispatch
-
-(defun vc-generic-status-printer (fileentry)
- (vc-call-backend vc-dir-backend 'status-printer fileentry))
-
-(defun vc-generic-state (file)
- (vc-call-backend vc-dir-backend 'state file))
-
-(defun vc-generic-status-fileinfo-extra (file)
- (vc-call-backend vc-dir-backend 'status-fileinfo-extra file))
-
-(defun vc-dir-extra-menu ()
- (vc-call-backend vc-dir-backend 'extra-status-menu))
-
-(defun vc-make-backend-object (file-or-dir)
- "Create the backend capability object needed by vc-dispatcher."
- (vc-create-client-object
- "VC dir"
- (vc-dir-headers vc-dir-backend file-or-dir)
- #'vc-generic-status-printer
- #'vc-generic-state
- #'vc-generic-status-fileinfo-extra
- #'vc-dir-refresh
- #'vc-dir-extra-menu))
-
-;;;###autoload
-(defun vc-dir (dir)
- "Show the VC status for DIR."
- (interactive "DVC status for directory: ")
- (pop-to-buffer (vc-dir-prepare-status-buffer "*vc-dir*" dir))
- (if (and (derived-mode-p 'vc-dir-mode) (boundp 'client-object))
- (vc-dir-refresh)
- ;; Otherwise, initialize a new view using the dispatcher layer
- (progn
- (set (make-local-variable 'vc-dir-backend) (vc-responsible-backend dir))
- ;; Build a capability object and hand it to the dispatcher initializer
- (vc-dir-mode (vc-make-backend-object dir))
- ;; FIXME: Make a derived-mode instead.
- ;; Add VC-specific keybindings
- (let ((map (current-local-map)))
- (define-key map "v" 'vc-next-action) ;; C-x v v
- (define-key map "=" 'vc-diff) ;; C-x v =
- (define-key map "i" 'vc-register) ;; C-x v i
- (define-key map "+" 'vc-update) ;; C-x v +
- (define-key map "l" 'vc-print-log) ;; C-x v l
- ;; More confusing than helpful, probably
- ;(define-key map "R" 'vc-revert) ;; u is taken by dispatcher unmark.
- ;(define-key map "A" 'vc-annotate) ;; g is taken by dispatcher refresh
- (define-key map "x" 'vc-dir-hide-up-to-date))
- )
- ;; FIXME: Needs to alter a buffer-local map, otherwise clients may clash
- (let ((map vc-dir-menu-map))
- ;; VC info details
- (define-key map [sepvcdet] '("--"))
- (define-key map [remup]
- '(menu-item "Hide up-to-date" vc-dir-hide-up-to-date
- :help "Hide up-to-date items from display"))
- ;; FIXME: This needs a key binding. And maybe a better name
- ;; ("Insert" like PCL-CVS uses does not sound that great either)...
- (define-key map [ins]
- '(menu-item "Show File" vc-dir-show-fileentry
- :help "Show a file in the VC status listing even though it might be up to date"))
- (define-key map [annotate]
- '(menu-item "Annotate" vc-annotate
- :help "Display the edit history of the current file using colors"))
- (define-key map [diff]
- '(menu-item "Compare with Base Version" vc-diff
- :help "Compare file set with the base version"))
- (define-key map [log]
- '(menu-item "Show history" vc-print-log
- :help "List the change log of the current file set in a window"))
- ;; VC commands.
- (define-key map [sepvccmd] '("--"))
- (define-key map [update]
- '(menu-item "Update to latest version" vc-update
- :help "Update the current fileset's files to their tip revisions"))
- (define-key map [revert]
- '(menu-item "Revert to base version" vc-revert
- :help "Revert working copies of the selected fileset to their repository contents."))
- (define-key map [next-action]
- ;; FIXME: This really really really needs a better name!
- ;; And a key binding too.
- '(menu-item "Check In/Out" vc-next-action
- :help "Do the next logical version control operation on the current fileset"))
- (define-key map [register]
- '(menu-item "Register" vc-dir-register
- :help "Register file set into the version control system"))
- )))
-
;; Named-configuration entry points
(defun vc-tag-precondition (dir)
(unless (yes-or-no-p (format "%s seems up-to-date. Revert anyway? " file))
(error "Revert canceled"))))
(when (vc-diff-internal vc-allow-async-revert vc-fileset nil nil)
- (unless (yes-or-no-p (format "Discard changes in %s? " (vc-delistify files)))
+ (unless (yes-or-no-p
+ (format "Discard changes in %s? "
+ (let ((str (vc-delistify files)))
+ (if (< (length str) 50)
+ str
+ (format "%d files" (length files))))))
(error "Revert canceled"))
(delete-windows-on "*vc-diff*")
(kill-buffer "*vc-diff*"))
(string-match "[0-9]+\\'" rev)
(substring rev (match-beginning 0) (match-end 0)))
+(define-obsolete-function-alias
+ 'vc-default-previous-version 'vc-default-previous-revision "23.1")
+
(defun vc-default-previous-revision (backend file rev)
"Return the revision number immediately preceding REV for FILE,
or nil if there is no previous revision. This default
(message "Checking out %s...done" file))))
(defalias 'vc-default-revision-completion-table 'ignore)
+(defalias 'vc-default-mark-resolved 'ignore)
(defun vc-default-dir-status-files (backend dir files default-state update-function)
(funcall update-function
;; These things should probably be generally available
+(defun vc-string-prefix-p (prefix string)
+ (let ((lpref (length prefix)))
+ (and (>= (length string) lpref)
+ (eq t (compare-strings prefix nil nil string nil lpref)))))
+
(defun vc-file-tree-walk (dirname func &rest args)
"Walk recursively through DIRNAME.
Invoke FUNC f ARGS on each VC-managed file f underneath it."