;;; vc.el --- drive a version-control system from within Emacs
-;; Copyright (C) 1992, 1993 Free Software Foundation, Inc.
+;; Copyright (C) 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
;; Author: Eric S. Raymond <esr@snark.thyrsus.com>
-;; Version: 5.4
+;; Modified by:
+;; ttn@netcom.com
+;; Per Cederqvist <ceder@lysator.liu.edu>
+;; Andre Spiegel <spiegel@berlin.informatik.uni-stuttgart.de>
;; This file is part of GNU Emacs.
;; This was designed and implemented by Eric Raymond <esr@snark.thyrsus.com>.
;; Paul Eggert <eggert@twinsun.com>, Sebastian Kremer <sk@thp.uni-koeln.de>,
;; and Richard Stallman contributed valuable criticism, support, and testing.
+;; CVS support was added by Per Cederqvist <ceder@lysator.liu.se>
+;; in Jan-Feb 1994.
;;
-;; Supported version-control systems presently include SCCS and RCS;
-;; your RCS version should be 5.6.2 or later for proper operation of
-;; the lock-breaking code.
+;; Supported version-control systems presently include SCCS, RCS, and CVS.
+;; The RCS lock-stealing code doesn't work right unless you use RCS 5.6.2
+;; or newer. Currently (January 1994) that is only a beta test release.
+;; Even initial checkins will fail if your RCS version is so old that ci
+;; doesn't understand -t-; this has been known to happen to people running
+;; NExTSTEP 3.0.
;;
;; The RCS code assumes strict locking. You can support the RCS -x option
;; by adding pairs to the vc-master-templates list.
(require 'vc-hooks)
(require 'ring)
+(eval-when-compile (require 'dired)) ; for dired-map-over-marks macro
(if (not (assoc 'vc-parent-buffer minor-mode-alist))
(setq minor-mode-alist
(cons '(vc-parent-buffer vc-parent-buffer-name)
minor-mode-alist)))
+;; To implement support for a new version-control system, add another
+;; branch to the vc-backend-dispatch macro and fill it in in each
+;; call. The variable vc-master-templates in vc-hooks.el will also
+;; have to change.
+
+(defmacro vc-backend-dispatch (f s r c)
+ "Execute FORM1, FORM2 or FORM3 for SCCS, RCS or CVS respectively.
+If FORM3 is `RCS', use FORM2 for CVS as well as RCS.
+\(CVS shares some code with RCS)."
+ (list 'let (list (list 'type (list 'vc-backend f)))
+ (list 'cond
+ (list (list 'eq 'type (quote 'SCCS)) s) ;; SCCS
+ (list (list 'eq 'type (quote 'RCS)) r) ;; RCS
+ (list (list 'eq 'type (quote 'CVS)) ;; CVS
+ (if (eq c 'RCS) r c))
+ )))
+
;; General customization
-(defvar vc-default-back-end nil
- "*Back-end actually used by this interface; may be SCCS or RCS.
-The value is only computed when needed to avoid an expensive search.")
(defvar vc-suppress-confirm nil
"*If non-nil, treat user as expert; suppress yes-no prompts on some things.")
-(defvar vc-keep-workfiles t
- "*If non-nil, don't delete working files after registering changes.")
(defvar vc-initial-comment nil
"*Prompt for initial comment when a file is registered.")
(defvar vc-command-messages nil
"*Display run messages from back-end commands.")
-(defvar vc-mistrust-permissions 'file-symlink-p
- "*Don't assume that permissions and ownership track version-control status.")
(defvar vc-checkin-switches nil
"*Extra switches passed to the checkin program by \\[vc-checkin].")
-(defvar vc-path
- (if (file-exists-p "/usr/sccs")
- '("/usr/sccs") nil)
- "*List of extra directories to search for version control commands.")
+(defvar vc-checkout-switches nil
+ "*Extra switches passed to the checkout program by \\[vc-checkout].")
+(defvar vc-directory-exclusion-list '("SCCS" "RCS" "CVS")
+ "*Directory names ignored by functions that recursively walk file trees.")
(defconst vc-maximum-comment-ring-size 32
"Maximum number of saved comments in the comment ring.")
(defvar vc-checkin-hook nil
"*List of functions called after a checkin is done. See `run-hooks'.")
+(defvar vc-make-buffer-writable-hook nil
+ "*List of functions called when a buffer is made writable. See `run-hooks.'
+This hook is only used when the version control system is CVS. It
+might be useful for sites who uses locking with CVS, or who uses link
+farms to gold trees.")
+
;; Header-insertion hair
(defvar vc-header-alist
- '((SCCS "\%W\%") (RCS "\$Id\$"))
+ '((SCCS "\%W\%") (RCS "\$Id\$") (CVS "\$Id\$"))
"*Header keywords to be inserted when `vc-insert-headers' is executed.")
-(defconst vc-static-header-alist
+(defvar vc-static-header-alist
'(("\\.c$" .
"\n#ifndef lint\nstatic char vcid[] = \"\%s\";\n#endif /* lint */\n"))
"*Associate static header string templates with file types. A \%s in the
and comment-end variables. This will only be necessary if the mode language
is sensitive to blank lines.")
+;; Default is to be extra careful for super-user.
+(defvar vc-checkout-carefully (= (user-uid) 0)
+ "*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.")
+
;; Variables the user doesn't need to know about.
(defvar vc-log-entry-mode nil)
(defvar vc-log-operation nil)
(defvar vc-log-after-operation-hook nil)
(defvar vc-checkout-writable-buffer-hook 'vc-checkout-writable-buffer)
+;; In a log entry buffer, this is a local variable
+;; that points to the buffer for which it was made
+;; (either a file, or a VC dired buffer).
(defvar vc-parent-buffer nil)
(defvar vc-parent-buffer-name nil)
(defvar vc-comment-ring-index nil)
(defvar vc-last-comment-match nil)
-;; File property caching
+;; Back-portability to Emacs 18
-(defun vc-file-clearprops (file)
- ;; clear all properties of a given file
- (setplist (intern file vc-file-prop-obarray) nil))
+(defun file-executable-p-18 (f)
+ (let ((modes (file-modes f)))
+ (and modes (not (zerop (logand 292))))))
+
+(defun file-regular-p-18 (f)
+ (let ((attributes (file-attributes f)))
+ (and attributes (not (car attributes)))))
+
+; Conditionally rebind some things for Emacs 18 compatibility
+(if (not (boundp 'minor-mode-map-alist))
+ (progn
+ (setq compilation-old-error-list nil)
+ (fset 'file-executable-p 'file-executable-p-18)
+ (fset 'shrink-window-if-larger-than-buffer 'beginning-of-buffer)
+ ))
+
+(if (not (boundp 'file-regular-p))
+ (fset 'file-regular-p 'file-regular-p-18))
+
+;; File property caching
(defun vc-clear-context ()
"Clear all cached file properties and the comment ring."
;; log buffer with a nonzero local value of vc-comment-ring-index.
(setq vc-comment-ring nil))
+(defun vc-file-clear-masterprops (file)
+ ;; clear all properties of FILE that were retrieved
+ ;; from the master file
+ (vc-file-setprop file 'vc-latest-version nil)
+ (vc-file-setprop file 'vc-your-latest-version nil)
+ (vc-backend-dispatch file
+ (progn ;; SCCS
+ (vc-file-setprop file 'vc-master-locks nil))
+ (progn ;; RCS
+ (vc-file-setprop file 'vc-default-branch nil)
+ (vc-file-setprop file 'vc-head-version nil)
+ (vc-file-setprop file 'vc-top-version nil)
+ (vc-file-setprop file 'vc-master-locks nil))
+ (progn
+ (vc-file-setprop file 'vc-cvs-status nil))))
+
+;;; functions that operate on RCS revision numbers
+
+(defun vc-trunk-p (rev)
+ ;; return t if REV is a revision on the trunk
+ (not (eq nil (string-match "\\`[0-9]+\\.[0-9]+\\'" rev))))
+
+(defun vc-branch-part (rev)
+ ;; return the branch part of a revision number REV
+ (substring rev 0 (string-match "\\.[0-9]+\\'" rev)))
+
;; Random helper functions
(defun vc-registration-error (file)
(defun vc-find-binary (name)
"Look for a command anywhere on the subprocess-command search path."
(or (cdr (assoc name vc-binary-assoc))
- (let ((full nil))
- (catch 'found
- (mapcar
- (function (lambda (s)
- (if (and s (file-exists-p (setq full (concat s "/" name))))
- (throw 'found nil))))
- exec-path))
- (if full
- (setq vc-binary-assoc (cons (cons name full) vc-binary-assoc)))
- full)))
-
-(defun vc-do-command (okstatus command file &rest flags)
+ (catch 'found
+ (mapcar
+ (function
+ (lambda (s)
+ (if s
+ (let ((full (concat s "/" name)))
+ (if (file-executable-p full)
+ (progn
+ (setq vc-binary-assoc
+ (cons (cons name full) vc-binary-assoc))
+ (throw 'found full)))))))
+ exec-path)
+ nil)))
+
+(defun vc-do-command (okstatus command file last &rest flags)
"Execute a version-control command, notifying user and checking for errors.
The command is successful if its exit status does not exceed OKSTATUS.
Output from COMMAND goes to buffer *vc*. The last argument of the command is
-the master name of FILE; this is appended to an optional list of FLAGS."
+the master name of FILE if LAST is 'MASTER, or the workfile of FILE if LAST is
+'WORKFILE; this is appended to an optional list of FLAGS."
(setq file (expand-file-name file))
(if vc-command-messages
(message "Running %s on %s..." command file))
(let ((obuf (current-buffer)) (camefrom (current-buffer))
(squeezed nil)
(vc-file (and file (vc-name file)))
+ (olddir default-directory)
status)
(set-buffer (get-buffer-create "*vc*"))
(set (make-local-variable 'vc-parent-buffer) camefrom)
(set (make-local-variable 'vc-parent-buffer-name)
(concat " from " (buffer-name camefrom)))
+ (setq default-directory olddir)
(erase-buffer)
- ;; This is so that command arguments typed in the *vc* buffer will
- ;; have reasonable defaults.
- (setq default-directory (file-name-directory file))
-
(mapcar
(function (lambda (s) (and s (setq squeezed (append squeezed (list s))))))
flags)
- (if vc-file
+ (if (and vc-file (eq last 'MASTER))
(setq squeezed (append squeezed (list vc-file))))
- (let ((default-directory (file-name-directory (or file "./")))
- (exec-path (if vc-path (append exec-path vc-path) exec-path)))
+ (if (eq last 'WORKFILE)
+ (progn
+ (let* ((pwd (expand-file-name default-directory))
+ (preflen (length pwd)))
+ (if (string= (substring file 0 preflen) pwd)
+ (setq file (substring file preflen))))
+ (setq squeezed (append squeezed (list file)))))
+ (let ((exec-path (append vc-path exec-path))
+ ;; Add vc-path to PATH for the execution of this command.
+ (process-environment
+ (cons (concat "PATH=" (getenv "PATH")
+ path-separator
+ (mapconcat 'identity vc-path path-separator))
+ process-environment)))
(setq status (apply 'call-process command nil t nil squeezed)))
(goto-char (point-max))
- (previous-line 1)
+ (set-buffer-modified-p nil)
+ (forward-line -1)
(if (or (not (integerp status)) (< okstatus status))
(progn
- (previous-line 1)
- (print (cons command squeezed))
- (next-line 1)
(pop-to-buffer "*vc*")
(goto-char (point-min))
(shrink-window-if-larger-than-buffer)
(if buffer-error-marked-p buffer))))
(buffer-list)))))))
- ;; the actual revisit
(revert-buffer arg no-confirm)
;; Reparse affected compilation buffers.
(if new-mark (set-mark new-mark))))))
-(defun vc-buffer-sync ()
+(defun vc-buffer-sync (&optional not-urgent)
;; Make sure the current buffer and its working file are in sync
- (if (and (buffer-modified-p)
- (or
- vc-suppress-confirm
- (y-or-n-p (format "%s has been modified. Write it out? "
- (buffer-name)))))
- (save-buffer)))
-
-(defun vc-workfile-unchanged-p (file)
+ ;; NOT-URGENT means it is ok to continue if the user says not to save.
+ (if (buffer-modified-p)
+ (if (or vc-suppress-confirm
+ (y-or-n-p (format "Buffer %s modified; save it? " (buffer-name))))
+ (save-buffer)
+ (if not-urgent
+ nil
+ (error "Aborted")))))
+
+
+(defun vc-workfile-unchanged-p (file &optional want-differences-if-changed)
;; Has the given workfile changed since last checkout?
(let ((checkout-time (vc-file-getprop file 'vc-checkout-time))
(lastmod (nth 5 (file-attributes file))))
- (if checkout-time
- (equal lastmod checkout-time)
- (if (zerop (vc-backend-diff file nil))
- (progn
- (vc-file-setprop file 'vc-checkout-time lastmod)
- t)
- (progn
- (vc-file-setprop file 'vc-checkout-time '(0 . 0))
- nil
- ))
- )))
+ (or (equal checkout-time lastmod)
+ (and (or (not checkout-time) want-differences-if-changed)
+ (let ((unchanged (zerop (vc-backend-diff file nil nil
+ (not want-differences-if-changed)))))
+ ;; 0 stands for an unknown time; it can't match any mod time.
+ (vc-file-setprop file 'vc-checkout-time (if unchanged lastmod 0))
+ unchanged)))))
(defun vc-next-action-on-file (file verbose &optional comment)
;;; If comment is specified, it will be used as an admin or checkin comment.
- (let (owner version (vc-file (vc-name file)))
+ (let ((vc-file (vc-name file))
+ (vc-type (vc-backend file))
+ owner version)
(cond
;; if there is no master file corresponding, create one
(vc-checkout-writable-buffer file)))
;; if there is no lock on the file, assert one and get it
- ((not (setq owner (vc-locking-user file)))
- (vc-checkout-writable-buffer file))
+ ((and (not (eq vc-type 'CVS)) ;There are no locks in CVS.
+ (not (setq owner (vc-locking-user file))))
+ (if (and vc-checkout-carefully
+ (not (vc-workfile-unchanged-p file t)))
+ (if (save-window-excursion
+ (pop-to-buffer "*vc*")
+ (goto-char (point-min))
+ (insert-string (format "Changes to %s since last lock:\n\n"
+ file))
+ (not (beep))
+ (yes-or-no-p
+ (concat "File has unlocked changes, "
+ "claim lock retaining changes? ")))
+ (progn (vc-backend-steal file)
+ (vc-mode-line file))
+ (if (not (yes-or-no-p "Revert to checked-in version, instead? "))
+ (error "Checkout aborted.")
+ (vc-revert-buffer1 t t)
+ (vc-checkout-writable-buffer file))
+ )
+ (if verbose
+ (if (not (eq vc-type 'SCCS))
+ (let ((rev (read-string "Branch or version to move to: ")))
+ (if (eq vc-type 'RCS)
+ (vc-do-command 0 "rcs" file 'MASTER (concat "-b" rev)))
+ (vc-checkout file nil rev))
+ (error "Sorry, this is not implemented for SCCS."))
+ (vc-checkout-writable-buffer file))))
;; a checked-out version exists, but the user may not own the lock
- ((not (string-equal owner (user-login-name)))
+ ((and (not (eq vc-type 'CVS)) ;There are no locks in CVS.
+ (not (string-equal owner (user-login-name))))
(if comment
(error "Sorry, you can't steal the lock on %s this way" file))
(vc-steal-lock
file
- (and verbose (read-string "Version to steal: "))
+ (if verbose (read-string "Version to steal: ")
+ (vc-workfile-version file))
owner))
-
+
+ ;; CVS: changes to the master file need to be
+ ;; merged back into the working file
+ ((and (eq vc-type 'CVS)
+ ;; "0" means "added, but not yet committed"
+ (not (string= (vc-workfile-version file) "0"))
+ (not (string= (vc-workfile-version file)
+ (vc-latest-version file))))
+ (vc-buffer-sync)
+ (if (yes-or-no-p (format "%s is not up-to-date. Merge in changes now? "
+ (buffer-name)))
+ (progn
+ (if (and (buffer-modified-p)
+ (not (yes-or-no-p
+ "Buffer %s modified; merge file on disc anyhow? "
+ (buffer-name))))
+ (error "Merge aborted"))
+ (if (not (zerop (vc-backend-merge-news file)))
+ ;; Overlaps detected - what now? Should use some
+ ;; fancy RCS conflict resolving package, or maybe
+ ;; emerge, but for now, simply warn the user with a
+ ;; message.
+ (message "Conflicts detected!"))
+ (vc-resynch-window file t (not (buffer-modified-p))))
+
+ (error "%s needs update" (buffer-name))))
+
+ ;; CVS: Buffer is read-only. Make the file "locked", i.e.
+ ;; make the buffer writable, and assert the user to be the locker
+ ((and (eq vc-type 'CVS) buffer-read-only)
+ (if verbose
+ (let ((rev (read-string "Trunk version to move to: ")))
+ (if (not (string= rev ""))
+ (vc-checkout file nil rev)
+ (vc-do-command 0 "cvs" file 'WORKFILE "update" "-A")
+ (vc-checkout file)))
+ (setq buffer-read-only nil)
+ (vc-file-setprop file 'vc-locking-user (user-login-name))
+ (vc-mode-line file)
+ ;; Sites who make link farms to a read-only gold tree (or
+ ;; something similar) can use the hook below to break the
+ ;; sym-link.
+ (run-hooks 'vc-make-buffer-writable-hook)))
+
;; OK, user owns the lock on the file
(t
(find-file file)
;; to saving it; in that case, don't revert,
;; because the user might intend to save
;; after finishing the log entry.
- (if (and (vc-workfile-unchanged-p file)
+ (if (and (vc-workfile-unchanged-p file)
(not (buffer-modified-p)))
- (progn
+ ;; DO NOT revert the file without asking the user!
+ (cond
+ ((yes-or-no-p "Revert to master version? ")
(vc-backend-revert file)
- ;; DO NOT revert the file without asking the user!
- (vc-resynch-window file t nil))
+ (vc-resynch-window file t t)))
;; user may want to set nonstandard parameters
(if verbose
;; We've accepted a log comment, now do a vc-next-action using it on all
;; marked files.
(set-buffer vc-parent-buffer)
- (dired-map-over-marks
- (save-window-excursion
- (let ((file (dired-get-filename)))
- (message "Processing %s..." file)
- (vc-next-action-on-file file nil comment)
- (message "Processing %s...done" file)))
- nil t)
+ (let ((configuration (current-window-configuration)))
+ (dired-map-over-marks
+ (save-window-excursion
+ (let ((file (dired-get-filename)))
+ (message "Processing %s..." file)
+ (vc-next-action-on-file file nil comment)
+ (message "Processing %s...done" file)))
+ nil t)
+ (set-window-configuration configuration))
)
;; Here's the major entry point.
;;;###autoload
(defun vc-next-action (verbose)
"Do the next logical checkin or checkout operation on the current file.
+ If you call this from within a VC dired buffer with no files marked,
+it will operate on the file in the current line.
+ If you call this from within a VC dired buffer, and one or more
+files are marked, it will accept a log message and then operate on
+each one. The log message will be used as a comment for any register
+or checkin operations, but ignored when doing checkouts. Attempted
+lock steals will raise an error.
+ A prefix argument lets you specify the version number to use.
+
+For RCS and SCCS files:
If the file is not already registered, this registers it for version
control and then retrieves a writable, locked copy for editing.
If the file is registered and not locked by anyone, this checks out
read-only copy of the changed file is left in place afterwards.
If the file is registered and locked by someone else, you are given
the option to steal the lock.
- If you call this from within a VC dired buffer with no files marked,
-it will operate on the file in the current line.
- If you call this from within a VC dired buffer, and one or more
-files are marked, it will accept a log message and then operate on
-each one. The log message will be used as a comment for any register
-or checkin operations, but ignored when doing checkouts. Attempted
-lock steals will raise an error."
+
+For CVS files:
+ If the file is not already registered, this registers it for version
+control. This does a \"cvs add\", but no \"cvs commit\".
+ If the file is added but not committed, it is committed.
+ If the file has not been changed, neither in your working area or
+in the repository, a message is printed and nothing is done.
+ If your working file is changed, but the repository file is
+unchanged, this pops up a buffer for entry of a log message; when the
+message has been entered, it checks in the resulting changes along
+with the logmessage as change commentary. A writable file is retained.
+ If the repository file is changed, you are asked if you want to
+merge in the changes into your working copy."
+
(interactive "P")
(catch 'nogo
(if vc-dired-mode
(let ((files (dired-get-marked-files)))
(if (= (length files) 1)
- (find-file-other-window (dired-get-filename))
+ (find-file-other-window (car files))
(vc-start-entry nil nil nil
"Enter a change comment for the marked files."
'vc-next-action-dired)
- (throw 'nogo))))
+ (throw 'nogo nil))))
(while vc-parent-buffer
(pop-to-buffer vc-parent-buffer))
(if buffer-file-name
;;; These functions help the vc-next-action entry point
-(defun vc-checkout-writable-buffer (&optional file)
+(defun vc-checkout-writable-buffer (&optional file rev)
"Retrieve a writable copy of the latest version of the current buffer's file."
- (vc-checkout (or file (buffer-file-name)) t)
+ (vc-checkout (or file (buffer-file-name)) t rev)
)
;;;###autoload
(defun vc-register (&optional override comment)
"Register the current file into your version-control system."
(interactive "P")
- (if (vc-name buffer-file-name)
- (error "This file is already registered"))
+ (or buffer-file-name
+ (error "No visited file"))
+ (let ((master (vc-name buffer-file-name)))
+ (and master (file-exists-p master)
+ (error "This file is already registered"))
+ (and master
+ (not (y-or-n-p "Previous master file has vanished. Make a new one? "))
+ (error "This file is already registered")))
;; Watch out for new buffers of size 0: the corresponding file
;; does not exist yet, even though buffer-modified-p is nil.
(if (and (not (buffer-modified-p))
(not (file-exists-p buffer-file-name)))
(set-buffer-modified-p t))
(vc-buffer-sync)
+ (cond ((not vc-make-backup-files)
+ ;; inhibit backup for this buffer
+ (make-local-variable 'backup-inhibited)
+ (setq backup-inhibited t)))
(vc-admin
buffer-file-name
(and override
(and (string= buffer-file-name file)
(if keep
(progn
+ ;; temporarily remove vc-find-file-hook, so that
+ ;; we don't lose the properties
+ (remove-hook 'find-file-hooks 'vc-find-file-hook)
(vc-revert-buffer1 t noquery)
+ (add-hook 'find-file-hooks 'vc-find-file-hook)
(vc-mode-line buffer-file-name))
- (progn
- (delete-window)
- (kill-buffer (current-buffer))))))
+ (kill-buffer (current-buffer)))))
-(defun vc-start-entry (file rev comment msg action)
+(defun vc-start-entry (file rev comment msg action &optional after-hook)
;; Accept a comment for an operation on FILE revision REV. If COMMENT
;; is nil, pop up a VC-log buffer, emit MSG, and set the
;; action on close to ACTION; otherwise, do action immediately.
- ;; Remember the file's buffer in parent-buffer (current one if no file).
+ ;; Remember the file's buffer in vc-parent-buffer (current one if no file).
+ ;; AFTER-HOOK specifies the local value for vc-log-operation-hook.
(let ((parent (if file (find-file-noselect file) (current-buffer))))
(if comment
(set-buffer (get-buffer-create "*VC-log*"))
(concat " from " (buffer-name vc-parent-buffer)))
(vc-mode-line (or file " (no file)"))
(vc-log-mode)
+ (make-local-variable 'vc-log-after-operation-hook)
+ (if after-hook
+ (setq vc-log-after-operation-hook after-hook))
(setq vc-log-operation action)
(setq vc-log-file file)
(setq vc-log-version rev)
"Check a file into your version-control system.
FILE is the unmodified name of the file. REV should be the base version
level to check it in under. COMMENT, if specified, is the checkin comment."
- (vc-start-entry file rev
- (or comment (not vc-initial-comment))
- "Enter initial comment." 'vc-backend-admin))
+ (vc-start-entry file rev
+ (or comment (not vc-initial-comment))
+ "Enter initial comment." 'vc-backend-admin
+ nil))
-(defun vc-checkout (file &optional writable)
+(defun vc-checkout (file &optional writable rev)
"Retrieve a copy of the latest version of the given file."
;; If ftp is on this system and the name matches the ange-ftp format
;; for a remote file, the user is trying something that won't work.
(if (and (string-match "^/[^/:]+:" file) (vc-find-binary "ftp"))
(error "Sorry, you can't check out files over FTP"))
- (vc-backend-checkout file writable)
+ (vc-backend-checkout file writable rev)
(if (string-equal file buffer-file-name)
(vc-resynch-window file t t))
)
(defun vc-steal-lock (file rev &optional owner)
"Steal the lock on the current workfile."
- (interactive)
- (if (not owner)
- (setq owner (vc-locking-user file)))
- (if (not (y-or-n-p (format "Take the lock on %s:%s from %s? " file rev owner)))
- (error "Steal cancelled"))
- (pop-to-buffer (get-buffer-create "*VC-mail*"))
- (setq default-directory (expand-file-name "~/"))
- (auto-save-mode auto-save-default)
- (mail-mode)
- (erase-buffer)
- (mail-setup owner (format "%s:%s" file rev) nil nil nil
- (list (list 'vc-finish-steal file rev)))
- (goto-char (point-max))
- (insert
- (format "I stole the lock on %s:%s, " file rev)
- (current-time-string)
- ".\n")
- (message "Please explain why you stole the lock. Type C-c C-c when done."))
+ (let (file-description)
+ (if (not owner)
+ (setq owner (vc-locking-user file)))
+ (if rev
+ (setq file-description (format "%s:%s" file rev))
+ (setq file-description file))
+ (if (not (y-or-n-p (format "Take the lock on %s from %s? "
+ file-description owner)))
+ (error "Steal cancelled"))
+ (pop-to-buffer (get-buffer-create "*VC-mail*"))
+ (setq default-directory (expand-file-name "~/"))
+ (auto-save-mode auto-save-default)
+ (mail-mode)
+ (erase-buffer)
+ (mail-setup owner (format "Stolen lock on %s" file-description) nil nil nil
+ (list (list 'vc-finish-steal file rev)))
+ (goto-char (point-max))
+ (insert
+ (format "I stole the lock on %s, " file-description)
+ (current-time-string)
+ ".\n")
+ (message "Please explain why you stole the lock. Type C-c C-c when done.")))
;; This is called when the notification has been sent.
(defun vc-finish-steal (file version)
(vc-backend-steal file version)
- (vc-resynch-window file t t))
+ (if (get-file-buffer file)
+ (save-excursion
+ (set-buffer (get-file-buffer file))
+ (vc-resynch-window file t t))))
(defun vc-checkin (file &optional rev comment)
"Check in the file specified by FILE.
The optional argument REV may be a string specifying the new version level
\(if nil increment the current level). The file is either retained with write
permissions zeroed, or deleted (according to the value of `vc-keep-workfiles').
+If the back-end is CVS, a writable workfile is always kept.
COMMENT is a comment string; if omitted, a buffer is
popped up to accept a comment."
- (setq vc-log-after-operation-hook 'vc-checkin-hook)
- (vc-start-entry file rev comment "Enter a change comment." 'vc-backend-checkin))
+ (vc-start-entry file rev comment
+ "Enter a change comment." 'vc-backend-checkin
+ 'vc-checkin-hook))
;;; Here is a checkin hook that may prove useful to sites using the
;;; ChangeLog facility supported by Emacs.
(interactive (if current-prefix-arg
(list current-prefix-arg
(prompt-for-change-log-name))))
+ ;; Make sure the defvar for add-log-current-defun-function has been executed
+ ;; before binding it.
+ (require 'add-log)
(let (;; Extract the comment first so we get any error before doing anything.
(comment (ring-ref vc-comment-ring 0))
;; Don't let add-change-log-entry insert a defun name.
(indent-to indentation))
(setq end (point))))
;; Fill the inserted text, preserving open-parens at bol.
- (let ((paragraph-separate (concat paragraph-separate "\\|^\\s *\\s("))
- (paragraph-start (concat paragraph-start "\\|^\\s *\\s(")))
+ (let ((paragraph-separate (concat paragraph-separate "\\|\\s *\\s("))
+ (paragraph-start (concat paragraph-start "\\|\\s *\\s(")))
(beginning-of-line)
(fill-region (point) end))
;; Canonicalize the white space at the end of the entry so it is
(setq vc-comment-ring (make-ring vc-maximum-comment-ring-size)))
(ring-insert vc-comment-ring (buffer-string))
))
+ ;; Sync parent buffer in case the user modified it while editing the comment.
+ ;; But not if it is a vc-dired buffer.
+ (save-excursion
+ (set-buffer vc-parent-buffer)
+ (or vc-dired-mode
+ (vc-buffer-sync)))
;; OK, do it to it
(if vc-log-operation
(save-excursion
vc-log-version
(buffer-string)))
(error "No log operation is pending"))
- ;; Return to "parent" buffer of this checkin and remove checkin window
- (pop-to-buffer vc-parent-buffer)
- (delete-windows-on (get-buffer "*VC-log*"))
- (kill-buffer "*VC-log*")
- ;; Now make sure we see the expanded headers
- (if buffer-file-name
+ ;; save the vc-log-after-operation-hook of log buffer
+ (let ((after-hook vc-log-after-operation-hook))
+ ;; Return to "parent" buffer of this checkin and remove checkin window
+ (pop-to-buffer vc-parent-buffer)
+ (let ((logbuf (get-buffer "*VC-log*")))
+ (delete-windows-on logbuf)
+ (kill-buffer logbuf))
+ ;; Now make sure we see the expanded headers
+ (if buffer-file-name
(vc-resynch-window buffer-file-name vc-keep-workfiles t))
- (run-hooks vc-log-after-operation-hook))
+ (run-hooks after-hook)))
;; Code for access to the comment ring
;; Additional entry points for examining version histories
;;;###autoload
-(defun vc-diff (historic)
+(defun vc-diff (historic &optional not-urgent)
"Display diffs between file versions.
Normally this compares the current file and buffer with the most recent
checked in version of that file. This uses no arguments.
unchanged)
(or (and file (vc-name file))
(vc-registration-error file))
- (vc-buffer-sync)
+ (vc-buffer-sync not-urgent)
(setq unchanged (vc-workfile-unchanged-p buffer-file-name))
(if unchanged
(message "No changes to %s since latest version." file)
- (vc-backend-diff file nil)
+ (vc-backend-diff file)
;; Ideally, we'd like at this point to parse the diff so that
;; the buffer effectively goes into compilation mode and we
;; can visit the old and new change locations via next-error.
;; visited. This plays hell with numerous assumptions in
;; the diff.el and compile.el machinery.
(pop-to-buffer "*vc*")
- (pop-to-buffer "*vc*")
+ (setq default-directory (file-name-directory file))
(if (= 0 (buffer-size))
(progn
(setq unchanged t)
(message "No changes to %s between %s and %s." file rel1 rel2)
(pop-to-buffer "*vc*"))))
+;;;###autoload
+(defun vc-version-other-window (rev)
+ "Visit version REV of the current buffer in another window.
+If the current buffer is named `F', the version is named `F.~REV~'.
+If `F.~REV~' already exists, it is used instead of being re-created."
+ (interactive "sVersion to visit (default is latest version): ")
+ (if vc-dired-mode
+ (set-buffer (find-file-noselect (dired-get-filename))))
+ (while vc-parent-buffer
+ (pop-to-buffer vc-parent-buffer))
+ (if (and buffer-file-name (vc-name buffer-file-name))
+ (let* ((version (if (string-equal rev "")
+ (vc-latest-version buffer-file-name)
+ rev))
+ (filename (concat buffer-file-name ".~" version "~")))
+ (or (file-exists-p filename)
+ (vc-backend-checkout buffer-file-name nil version filename))
+ (find-file-other-window filename))
+ (vc-registration-error buffer-file-name)))
+
;; Header-insertion code
;;;###autoload
(let* ((delims (cdr (assq major-mode vc-comment-alist)))
(comment-start-vc (or (car delims) comment-start "#"))
(comment-end-vc (or (car (cdr delims)) comment-end ""))
- (hdstrings (cdr (assoc (vc-backend-deduce (buffer-file-name)) vc-header-alist))))
+ (hdstrings (cdr (assoc (vc-backend (buffer-file-name)) vc-header-alist))))
(mapcar (function (lambda (s)
(insert comment-start-vc "\t" s "\t"
comment-end-vc "\n")))
;;
;; This code, like dired, assumes UNIX -l format.
(forward-word 1) ;; skip over any extra field due to -ibs options
- (if x (setq x (concat "(" x ")")))
- (if (re-search-forward "\\([0-9]+ \\).................\\( .*\\)" nil 0)
- (let ((rep (substring (concat x " ") 0 9)))
- (replace-match (concat "\\1" rep "\\2") t)))
- )
+ (cond
+ ;; This hack is used by the CVS code. See vc-locking-user.
+ ((numberp x)
+ (cond
+ ((re-search-forward "\\([0-9]+ \\)\\([^ ]+\\)\\( .*\\)" nil 0)
+ (save-excursion
+ (goto-char (match-beginning 2))
+ (insert "(")
+ (goto-char (1+ (match-end 2)))
+ (insert ")")
+ (delete-char (- 17 (- (match-end 2) (match-beginning 2))))
+ (insert (substring " " 0
+ (- 7 (- (match-end 2) (match-beginning 2)))))))))
+ (t
+ (if x (setq x (concat "(" x ")")))
+ (if (re-search-forward "\\([0-9]+ \\).................\\( .*\\)" nil 0)
+ (let ((rep (substring (concat x " ") 0 9)))
+ (replace-match (concat "\\1" rep "\\2") t)))
+ )))
;;; Note in Emacs 18 the following defun gets overridden
;;; with the symbol 'vc-directory-18. See below.
;;;###autoload
(defun vc-directory (verbose)
- "Show version-control status of all files under the current directory."
+ "Show version-control status of the current directory and subdirectories.
+Normally it creates a Dired buffer that lists only the locked files
+in all these directories. With a prefix argument, it lists all files."
(interactive "P")
(let (nonempty
- (dl (length default-directory))
+ (dl (length (expand-file-name default-directory)))
(filelist nil) (userlist nil)
dired-buf
dired-buf-mod-count)
(or (boundp 'minor-mode-map-alist)
(fset 'vc-directory 'vc-directory-18))
-; Emacs 18 also lacks these.
-(or (boundp 'compilation-old-error-list)
- (setq compilation-old-error-list nil))
-
;; Named-configuration support for SCCS
(defun vc-add-triple (name file rev)
(save-excursion
- (find-file (concat (vc-backend-subdirectory-name file) "/" vc-name-assoc-file))
+ (find-file (expand-file-name
+ vc-name-assoc-file
+ (file-name-as-directory
+ (expand-file-name (vc-backend-subdirectory-name file)
+ (file-name-directory file)))))
(goto-char (point-max))
(insert name "\t:\t" file "\t" rev "\n")
(basic-save-buffer)
(defun vc-record-rename (file newname)
(save-excursion
- (find-file (concat (vc-backend-subdirectory-name file) "/" vc-name-assoc-file))
+ (find-file
+ (expand-file-name
+ vc-name-assoc-file
+ (file-name-as-directory
+ (expand-file-name (vc-backend-subdirectory-name file)
+ (file-name-directory file)))))
(goto-char (point-min))
- (replace-regexp (concat ":" (regexp-quote file) "$") (concat ":" newname))
+ ;; (replace-regexp (concat ":" (regexp-quote file) "$") (concat ":" newname))
+ (while (re-search-forward (concat ":" (regexp-quote file) "$") nil t)
+ (replace-match (concat ":" newname) nil nil))
(basic-save-buffer)
(kill-buffer (current-buffer))
))
(defun vc-lookup-triple (file name)
;; Return the numeric version corresponding to a named snapshot of file
;; If name is nil or a version number string it's just passed through
- (cond ((null name) "")
+ (cond ((null name) name)
((let ((firstchar (aref name 0)))
(and (>= firstchar ?0) (<= firstchar ?9)))
name)
(t
- (car (vc-master-info
- (concat (vc-backend-subdirectory-name file) "/" vc-name-assoc-file)
- (list (concat name "\t:\t" file "\t\\(.+\\)"))))
- )))
+ (save-excursion
+ (set-buffer (get-buffer-create "*vc-info*"))
+ (vc-insert-file
+ (expand-file-name
+ vc-name-assoc-file
+ (file-name-as-directory
+ (expand-file-name (vc-backend-subdirectory-name file)
+ (file-name-directory file)))))
+ (prog1
+ (car (vc-parse-buffer
+ (list (list (concat name "\t:\t" file "\t\\(.+\\)") 1))))
+ (kill-buffer "*vc-info*"))))
+ ))
;; Named-configuration entry points
(function (lambda (f) (and
(vc-name f)
(vc-error-occurred
- (vc-backend-checkout f nil name))))))
+ (vc-checkout f nil name))))))
)))
;; Miscellaneous other entry points
(while vc-parent-buffer
(pop-to-buffer vc-parent-buffer))
(if (and buffer-file-name (vc-name buffer-file-name))
- (progn
- (vc-backend-print-log buffer-file-name)
+ (let ((file buffer-file-name))
+ (vc-backend-print-log file)
(pop-to-buffer (get-buffer-create "*vc*"))
+ (setq default-directory (file-name-directory file))
+ (while (looking-at "=*\n")
+ (delete-char (- (match-end 0) (match-beginning 0)))
+ (forward-line -1))
(goto-char (point-min))
+ (if (looking-at "[\b\t\n\v\f\r ]+")
+ (delete-char (- (match-end 0) (match-beginning 0))))
(shrink-window-if-larger-than-buffer)
)
(vc-registration-error buffer-file-name)
(defun vc-revert-buffer ()
"Revert the current buffer's file back to the latest checked-in version.
This asks for confirmation if the buffer contents are not identical
-to that version."
+to that version.
+If the back-end is CVS, this will give you the most recent revision of
+the file on the branch you are editing."
(interactive)
(if vc-dired-mode
(find-file-other-window (dired-get-filename)))
(while vc-parent-buffer
(pop-to-buffer vc-parent-buffer))
(let ((file buffer-file-name)
- (obuf (current-buffer)) (changed (vc-diff nil)))
+ (obuf (current-buffer)) (changed (vc-diff nil t)))
(if (and changed (or vc-suppress-confirm
(not (yes-or-no-p "Discard changes? "))))
(progn
(find-file-other-window (dired-get-filename)))
(while vc-parent-buffer
(pop-to-buffer vc-parent-buffer))
+ (if (eq (vc-backend (buffer-file-name)) 'CVS)
+ (error "Unchecking files under CVS is dangerous and not supported in VC"))
(let* ((target (concat (vc-latest-version (buffer-file-name))))
(yours (concat (vc-your-latest-version (buffer-file-name))))
(prompt (if (string-equal yours target)
(vc-checkout (buffer-file-name) nil)))
))
+;;;###autoload
(defun vc-rename-file (old new)
"Rename file OLD to NEW, and rename its master file likewise."
(interactive "fVC rename file: \nFRename to: ")
+ ;; There are several ways of renaming files under CVS 1.3, but they all
+ ;; have serious disadvantages. See the FAQ (available from think.com in
+ ;; pub/cvs/). I'd rather send the user an error, than do something he might
+ ;; consider to be wrong. When the famous, long-awaited rename database is
+ ;; implemented things might change for the better. This is unlikely to occur
+ ;; until CVS 2.0 is released. --ceder 1994-01-23 21:27:51
+ (if (eq (vc-backend old) 'CVS)
+ (error "Renaming files under CVS is dangerous and not supported in VC."))
(let ((oldbuf (get-file-buffer old)))
- (if (buffer-modified-p oldbuf)
+ (if (and oldbuf (buffer-modified-p oldbuf))
(error "Please save files before moving them"))
(if (get-file-buffer new)
(error "Already editing new file name"))
+ (if (file-exists-p new)
+ (error "New file already exists"))
(let ((oldmaster (vc-name old)))
(if oldmaster
- (if (vc-locking-user old)
- (error "Please check in files before moving them"))
- (if (or (file-symlink-p oldmaster)
- ;; This had FILE, I changed it to OLD. -- rms.
- (file-symlink-p (vc-backend-subdirectory-name old)))
- (error "This is not a safe thing to do in the presence of symbolic links"))
- (rename-file oldmaster (vc-name new)))
+ (progn
+ (if (vc-locking-user old)
+ (error "Please check in files before moving them"))
+ (if (or (file-symlink-p oldmaster)
+ ;; This had FILE, I changed it to OLD. -- rms.
+ (file-symlink-p (vc-backend-subdirectory-name old)))
+ (error "This is not a safe thing to do in the presence of symbolic links"))
+ (rename-file
+ oldmaster
+ (let ((backend (vc-backend old))
+ (newdir (or (file-name-directory new) ""))
+ (newbase (file-name-nondirectory new)))
+ (catch 'found
+ (mapcar
+ (function
+ (lambda (s)
+ (if (eq backend (cdr s))
+ (let* ((newmaster (format (car s) newdir newbase))
+ (newmasterdir (file-name-directory newmaster)))
+ (if (or (not newmasterdir)
+ (file-directory-p newmasterdir))
+ (throw 'found newmaster))))))
+ vc-master-templates)
+ (error "New file lacks a version control directory"))))))
(if (or (not oldmaster) (file-exists-p old))
(rename-file old new)))
; ?? Renaming a file might change its contents due to keyword expansion.
(set-buffer-modified-p nil))))
;; This had FILE, I changed it to OLD. -- rms.
(vc-backend-dispatch old
- (vc-record-rename old new)
- nil)
+ (vc-record-rename old new) ;SCCS
+ nil ;RCS
+ nil ;CVS
+ )
)
;;;###autoload
file)
(while buffers
(setq file (buffer-file-name (car buffers)))
- (and file (vc-backend-deduce file)
+ (and file (vc-backend file)
(setq files (cons file files)))
(setq buffers (cdr buffers)))
files))
(message "Computing change log entries... %s"
(if (or (null args)
(eq 0 (apply 'call-process "rcs2log" nil t nil
+ "-u"
+ (concat (user-login-name)
+ "\t"
+ (user-full-name)
+ "\t"
+ user-mail-address)
(mapcar (function
(lambda (f)
(file-relative-name
args))))
"done" "failed"))))
-;; Functions for querying the master and lock files.
-
-(defun vc-match-substring (bn)
- (buffer-substring (match-beginning bn) (match-end bn)))
-
-(defun vc-parse-buffer (patterns &optional file properties)
- ;; Use PATTERNS to parse information out of the current buffer
- ;; by matching each regular expression in the list and returning \\1.
- ;; If a regexp has two tag brackets, assume the second is a date
- ;; field and we want the most recent entry matching the template.
- ;; If FILE and PROPERTIES are given, the latter must be a list of
- ;; properties of the same length as PATTERNS; each property is assigned
- ;; the corresponding value.
- (mapcar (function (lambda (p)
- (goto-char (point-min))
- (if (string-match "\\\\(.*\\\\(" p)
- (let ((latest-date "") (latest-val))
- (while (re-search-forward p nil t)
- (let ((date (vc-match-substring 2)))
- (if (string< latest-date date)
- (progn
- (setq latest-date date)
- (setq latest-val
- (vc-match-substring 1))))))
- latest-val))
- (prog1
- (and (re-search-forward p nil t)
- (let ((value (vc-match-substring 1)))
- (if file
- (vc-file-setprop file (car properties) value))
- value))
- (setq properties (cdr properties)))))
- patterns)
- )
-
-(defun vc-master-info (file fields &optional rfile properties)
- ;; Search for information in a master file.
- (if (and file (file-exists-p file))
- (save-excursion
- (let ((buf))
- (setq buf (create-file-buffer file))
- (set-buffer buf))
- (erase-buffer)
- (insert-file-contents file nil)
- (set-buffer-modified-p nil)
- (auto-save-mode nil)
- (prog1
- (vc-parse-buffer fields rfile properties)
- (kill-buffer (current-buffer)))
- )
- (if rfile
- (mapcar
- (function (lambda (p) (vc-file-setprop rfile p nil)))
- properties))
- )
- )
-
-(defun vc-log-info (command file patterns &optional properties)
- ;; Search for information in log program output
- (if (and file (file-exists-p file))
- (save-excursion
- (let ((buf))
- (setq buf (get-buffer-create "*vc*"))
- (set-buffer buf))
- (apply 'vc-do-command 0 command file nil)
- (set-buffer-modified-p nil)
- (prog1
- (vc-parse-buffer patterns file properties)
- (kill-buffer (current-buffer))
- )
- )
- (if file
- (mapcar
- (function (lambda (p) (vc-file-setprop file p nil)))
- properties))
- )
- )
-
-(defun vc-locking-user (file)
- "Return the name of the person currently holding a lock on FILE.
-Return nil if there is no such person."
- (setq file (expand-file-name file)) ;; ??? Work around bug in 19.0.4
- (if (or (not vc-keep-workfiles)
- (eq vc-mistrust-permissions 't)
- (and vc-mistrust-permissions
- (funcall vc-mistrust-permissions (vc-backend-subdirectory-name file))))
- (vc-true-locking-user file)
- ;; This implementation assumes that any file which is under version
- ;; control and has -rw-r--r-- is locked by its owner. This is true
- ;; for both RCS and SCCS, which keep unlocked files at -r--r--r--.
- ;; We have to be careful not to exclude files with execute bits on;
- ;; scripts can be under version control too. The advantage of this
- ;; hack is that calls to the very expensive vc-fetch-properties
- ;; function only have to be made if (a) the file is locked by someone
- ;; other than the current user, or (b) some untoward manipulation
- ;; behind vc's back has changed the owner or the `group' or `other'
- ;; write bits.
- (let ((attributes (file-attributes file)))
- (cond ((string-match ".r-.r-.r-." (nth 8 attributes))
- nil)
- ((and (= (nth 2 attributes) (user-uid))
- (string-match ".rw.r-.r-." (nth 8 attributes)))
- (user-login-name))
- (t
- (vc-true-locking-user file))))))
-
-(defun vc-true-locking-user (file)
- ;; The slow but reliable version
- (vc-fetch-properties file)
- (vc-file-getprop file 'vc-locking-user))
-
-(defun vc-latest-version (file)
- ;; Return version level of the latest version of FILE
- (vc-fetch-properties file)
- (vc-file-getprop file 'vc-latest-version))
-
-(defun vc-your-latest-version (file)
- ;; Return version level of the latest version of FILE checked in by you
- (vc-fetch-properties file)
- (vc-file-getprop file 'vc-your-latest-version))
-
;; Collect back-end-dependent stuff here
-;;
-;; Everything eventually funnels through these functions. To implement
-;; support for a new version-control system, add another branch to the
-;; vc-backend-dispatch macro and fill it in in each call. The variable
-;; vc-master-templates in vc-hooks.el will also have to change.
-
-(defmacro vc-backend-dispatch (f s r)
- "Execute FORM1 or FORM2 depending on whether we're using SCCS or RCS."
- (list 'let (list (list 'type (list 'vc-backend-deduce f)))
- (list 'cond
- (list (list 'eq 'type (quote 'SCCS)) s) ;; SCCS
- (list (list 'eq 'type (quote 'RCS)) r) ;; RCS
- )))
-
-(defun vc-lock-file (file)
- ;; Generate lock file name corresponding to FILE
- (let ((master (vc-name file)))
- (and
- master
- (string-match "\\(.*/\\)s\\.\\(.*\\)" master)
- (concat
- (substring master (match-beginning 1) (match-end 1))
- "p."
- (substring master (match-beginning 2) (match-end 2))))))
-
-
-(defun vc-fetch-properties (file)
- ;; Re-fetch all properties associated with the given file.
- ;; Currently these properties are:
- ;; vc-locking-user
- ;; vc-locked-version
- ;; vc-latest-version
- ;; vc-your-latest-version
- (vc-backend-dispatch
- file
- ;; SCCS
- (progn
- (vc-master-info (vc-lock-file file)
- (list
- "^[^ ]+ [^ ]+ \\([^ ]+\\)"
- "^\\([^ ]+\\)")
- file
- '(vc-locking-user vc-locked-version))
- (vc-master-info (vc-name file)
- (list
- "^\001d D \\([^ ]+\\)"
- (concat "^\001d D \\([^ ]+\\) .* "
- (regexp-quote (user-login-name)) " ")
- )
- file
- '(vc-latest-version vc-your-latest-version))
- )
- ;; RCS
- (vc-log-info "rlog" file
- (list
- "^locks: strict\n\t\\([^:]+\\)"
- "^locks: strict\n\t[^:]+: \\(.+\\)"
- "^revision[\t ]+\\([0-9.]+\\).*\ndate: \\([ /0-9:]+\\);"
- (concat
- "^revision[\t ]+\\([0-9.]+\\)\n.*author: "
- (regexp-quote (user-login-name))
- ";"))
- '(vc-locking-user vc-locked-version
- vc-latest-version vc-your-latest-version))
- ))
-
-(defun vc-backend-subdirectory-name (&optional file)
- ;; Where the master and lock files for the current directory are kept
- (symbol-name
- (or
- (and file (vc-backend-deduce file))
- vc-default-back-end
- (setq vc-default-back-end (if (vc-find-binary "rcs") 'RCS 'SCCS)))))
(defun vc-backend-admin (file &optional rev comment)
;; Register a file into the version-control system
((file-exists-p (vc-backend-subdirectory-name)) vc-default-back-end)
((file-exists-p "RCS") 'RCS)
((file-exists-p "SCCS") 'SCCS)
+ ((file-exists-p "CVS") 'CVS)
(t vc-default-back-end))))
(cond ((eq backend 'SCCS)
- (vc-do-command 0 "admin" file ;; SCCS
+ (vc-do-command 0 "admin" file 'MASTER ;; SCCS
(and rev (concat "-r" rev))
"-fb"
(concat "-i" file)
(file-name-nondirectory file)))
(delete-file file)
(if vc-keep-workfiles
- (vc-do-command 0 "get" file)))
+ (vc-do-command 0 "get" file 'MASTER)))
((eq backend 'RCS)
- (vc-do-command 0 "ci" file ;; RCS
+ (vc-do-command 0 "ci" file 'MASTER ;; RCS
(concat (if vc-keep-workfiles "-u" "-r") rev)
(and comment (concat "-t-" comment))
- file)
+ file))
+ ((eq backend 'CVS)
+ (vc-do-command 0 "cvs" file 'WORKFILE ;; CVS
+ "add"
+ (and comment (not (string= comment ""))
+ (concat "-m" comment)))
)))
(message "Registering %s...done" file)
)
-(defun vc-backend-checkout (file &optional writable rev)
+(defun vc-backend-checkout (file &optional writable rev workfile)
;; Retrieve a copy of a saved version into a workfile
- (message "Checking out %s..." file)
- (vc-backend-dispatch file
- (progn
- (vc-do-command 0 "get" file ;; SCCS
- (if writable "-e")
- (and rev (concat "-r" (vc-lookup-triple file rev))))
- )
- (vc-do-command 0 "co" file ;; RCS
- (if writable "-l")
- (and rev (concat "-r" rev)))
- )
- (vc-file-setprop file 'vc-checkout-time (nth 5 (file-attributes file)))
- (message "Checking out %s...done" file)
+ (let ((filename (or workfile file)))
+ (message "Checking out %s..." filename)
+ (save-excursion
+ ;; Change buffers to get local value of vc-checkin-switches.
+ (set-buffer (or (get-file-buffer file) (current-buffer)))
+ (vc-backend-dispatch file
+ (if workfile;; SCCS
+ ;; Some SCCS implementations allow checking out directly to a
+ ;; file using the -G option, but then some don't so use the
+ ;; least common denominator approach and use the -p option
+ ;; ala RCS.
+ (let ((vc-modes (logior (file-modes (vc-name file))
+ (if writable 128 0)))
+ (failed t))
+ (unwind-protect
+ (progn
+ (apply 'vc-do-command
+ 0 "/bin/sh" file 'MASTER "-c"
+ ;; Some shells make the "" dummy argument into $0
+ ;; while others use the shell's name as $0 and
+ ;; use the "" as $1. The if-statement
+ ;; converts the latter case to the former.
+ (format "if [ x\"$1\" = x ]; then shift; fi; \
+ umask %o; exec >\"$1\" || exit; \
+ shift; umask %o; exec get \"$@\""
+ (logand 511 (lognot vc-modes))
+ (logand 511 (lognot (default-file-modes))))
+ "" ; dummy argument for shell's $0
+ filename
+ (if writable "-e")
+ "-p" (and rev
+ (concat "-r" (vc-lookup-triple file rev)))
+ vc-checkout-switches)
+ (setq failed nil))
+ (and failed (file-exists-p filename) (delete-file filename))))
+ (apply 'vc-do-command 0 "get" file 'MASTER;; SCCS
+ (if writable "-e")
+ (and rev (concat "-r" (vc-lookup-triple file rev)))
+ vc-checkout-switches)
+ (vc-file-setprop file 'vc-workfile-version nil))
+ (if workfile;; RCS
+ ;; RCS doesn't let us check out into arbitrary file names directly.
+ ;; Use `co -p' and make stdout point to the correct file.
+ (let ((vc-modes (logior (file-modes (vc-name file))
+ (if writable 128 0)))
+ (failed t))
+ (unwind-protect
+ (progn
+ (apply 'vc-do-command
+ 0 "/bin/sh" file 'MASTER "-c"
+ ;; See the SCCS case, above, regarding the
+ ;; if-statement.
+ (format "if [ x\"$1\" = x ]; then shift; fi; \
+ umask %o; exec >\"$1\" || exit; \
+ shift; umask %o; exec co \"$@\""
+ (logand 511 (lognot vc-modes))
+ (logand 511 (lognot (default-file-modes))))
+ "" ; dummy argument for shell's $0
+ filename
+ (if writable "-l")
+ (concat "-p" rev)
+ vc-checkout-switches)
+ (setq failed nil))
+ (and failed (file-exists-p filename) (delete-file filename))))
+ (progn
+ (apply 'vc-do-command
+ 0 "co" file 'MASTER
+ (if writable "-l")
+ (if rev (concat "-r" rev)
+ ;; if no explicit revision was specified,
+ ;; check out that of the working file
+ (let ((workrev (vc-workfile-version file)))
+ (if workrev (concat "-r" workrev)
+ nil)))
+ vc-checkout-switches)
+ (save-excursion
+ (set-buffer "*vc*")
+ (goto-char (point-min))
+ (if (re-search-forward "^revision \\([0-9.]+\\).*\n" nil t)
+ (vc-file-setprop file 'vc-workfile-version
+ (buffer-substring (match-beginning 1)
+ (match-end 1)))
+ (vc-file-setprop file 'vc-workfile-version nil)))))
+ (if workfile;; CVS
+ ;; CVS is much like RCS
+ (let ((failed t))
+ (unwind-protect
+ (progn
+ (apply 'vc-do-command
+ 0 "/bin/sh" file 'WORKFILE "-c"
+ "exec >\"$1\" || exit; shift; exec cvs update \"$@\""
+ "" ; dummy argument for shell's $0
+ workfile
+ (concat "-r" rev)
+ "-p"
+ vc-checkout-switches)
+ (setq failed nil))
+ (and failed (file-exists-p filename) (delete-file filename))))
+ (apply 'vc-do-command 0 "cvs" file 'WORKFILE
+ "update"
+ (and rev (concat "-r" rev))
+ vc-checkout-switches)
+ (vc-file-setprop file 'vc-workfile-version nil))
+ ))
+ (cond
+ ((not workfile)
+ (vc-file-clear-masterprops file)
+ (if writable
+ (vc-file-setprop file 'vc-locking-user (user-login-name)))
+ (vc-file-setprop file
+ 'vc-checkout-time (nth 5 (file-attributes file)))))
+ (message "Checking out %s...done" filename))
)
(defun vc-backend-logentry-check (file)
(goto-char 512)
(error
"Log must be less than 512 characters; point is now at pos 512")))
- nil)
+ nil ;; RCS
+ nil) ;; CVS
)
-(defun vc-backend-checkin (file &optional rev comment)
+(defun vc-backend-checkin (file rev comment)
;; Register changes to FILE as level REV with explanatory COMMENT.
;; Automatically retrieves a read-only version of the file with
;; keywords expanded if vc-keep-workfiles is non-nil, otherwise
;; it deletes the workfile.
+ ;; Adaption for RCS branch support: if this is an explicit checkin,
+ ;; or if the checkin creates a new branch, set the master file branch
+ ;; accordingly.
(message "Checking in %s..." file)
+ ;; "This log message intentionally left almost blank".
+ (and (or (not comment) (string= comment ""))
+ (setq comment "*** empty log message ***"))
(save-excursion
;; Change buffers to get local value of vc-checkin-switches.
(set-buffer (or (get-file-buffer file) (current-buffer)))
(vc-backend-dispatch file
+ ;; SCCS
(progn
- (apply 'vc-do-command 0 "delta" file
+ (apply 'vc-do-command 0 "delta" file 'MASTER
(if rev (concat "-r" rev))
(concat "-y" comment)
vc-checkin-switches)
+ (vc-file-setprop file 'vc-locking-user 'none)
+ (vc-file-setprop file 'vc-workfile-version nil)
(if vc-keep-workfiles
- (vc-do-command 0 "get" file))
+ (vc-do-command 0 "get" file 'MASTER))
)
- (apply 'vc-do-command 0 "ci" file
- (concat (if vc-keep-workfiles "-u" "-r") rev)
- (concat "-m" comment)
- vc-checkin-switches)
- ))
- (vc-file-setprop file 'vc-locking-user nil)
- (message "Checking in %s...done" file)
- )
+ ;; RCS
+ (let ((old-version (vc-workfile-version file)) new-version)
+ (apply 'vc-do-command 0 "ci" file 'MASTER
+ (concat (if vc-keep-workfiles "-u" "-r") rev)
+ (concat "-m" comment)
+ vc-checkin-switches)
+ (vc-file-setprop file 'vc-locking-user 'none)
+ (vc-file-setprop file 'vc-workfile-version nil)
+
+ ;; determine the new workfile version
+ (set-buffer "*vc*")
+ (goto-char (point-min))
+ (if (or (re-search-forward
+ "new revision: \\([0-9.]+\\);" nil t)
+ (re-search-forward
+ "reverting to previous revision \\([0-9.]+\\)" nil t))
+ (progn (setq new-version (buffer-substring (match-beginning 1)
+ (match-end 1)))
+ (vc-file-setprop file 'vc-workfile-version new-version)))
+
+ ;; if we got to a different branch, adjust the default
+ ;; branch accordingly, and remove any remaining
+ ;; lock on the old version.
+ (cond
+ ((and old-version new-version
+ (not (string= (vc-branch-part old-version)
+ (vc-branch-part new-version))))
+ (vc-do-command 0 "rcs" file 'MASTER
+ (if (vc-trunk-p new-version) "-b"
+ (concat "-b" (vc-branch-part new-version))))
+ ;; exit status of 1 is also accepted.
+ ;; It means that the lock was removed before.
+ (vc-do-command 1 "rcs" file 'MASTER
+ (concat "-u" old-version)))))
+ ;; CVS
+ (progn
+ ;; explicit check-in to the trunk requires a
+ ;; double check-in (first unexplicit) (CVS-1.3)
+ (if (and rev (vc-trunk-p rev))
+ (apply 'vc-do-command 0 "cvs" file 'WORKFILE
+ "ci" "-m" "intermediate"
+ vc-checkin-switches))
+ (apply 'vc-do-command 0 "cvs" file 'WORKFILE
+ "ci" (if rev (concat "-r" rev))
+ (concat "-m" comment)
+ vc-checkin-switches)
+ ;; determine and store the new workfile version
+ (set-buffer "*vc*")
+ (goto-char (point-min))
+ (if (re-search-forward
+ "^\\(new\\|initial\\) revision: \\([0-9.]+\\)" nil t)
+ (vc-file-setprop file 'vc-workfile-version
+ (buffer-substring (match-beginning 2)
+ (match-end 2)))
+ (vc-file-setprop file 'vc-workfile-version nil))
+ ;; if this was an explicit check-in, remove the sticky tag
+ (if rev
+ (vc-do-command 0 "cvs" file 'WORKFILE "update" "-A"))
+ (vc-file-setprop file 'vc-locking-user 'none)
+ (vc-file-setprop file 'vc-checkout-time
+ (nth 5 (file-attributes file))))))
+ (vc-file-clear-masterprops file)
+ (message "Checking in %s...done" file))
(defun vc-backend-revert (file)
;; Revert file to latest checked-in version.
+ ;; (for RCS, to workfile version)
(message "Reverting %s..." file)
(vc-backend-dispatch
file
- (progn ;; SCCS
- (vc-do-command 0 "unget" file nil)
- (vc-do-command 0 "get" file nil))
- (vc-do-command 0 "co" file "-f" "-u")) ;; RCS. This deletes the work file.
- (vc-file-setprop file 'vc-locking-user nil)
+ ;; SCCS
+ (progn
+ (vc-do-command 0 "unget" file 'MASTER nil)
+ (vc-do-command 0 "get" file 'MASTER nil))
+ ;; RCS
+ (vc-do-command 0 "co" file 'MASTER
+ "-f" (concat "-u" (vc-workfile-version file)))
+ ;; CVS
+ (progn
+ (delete-file file)
+ (vc-do-command 0 "cvs" file 'WORKFILE "update")))
+ (vc-file-setprop file 'vc-locking-user 'none)
+ (vc-file-setprop file 'vc-checkout-time (nth 5 (file-attributes file)))
(message "Reverting %s...done" file)
)
;; Steal the lock on the current workfile. Needs RCS 5.6.2 or later for -M.
(message "Stealing lock on %s..." file)
(vc-backend-dispatch file
- (progn
- (vc-do-command 0 "unget" file "-n" (if rev (concat "-r" rev)))
- (vc-do-command 0 "get" file "-g" (if rev (concat "-r" rev)))
+ (progn ;SCCS
+ (vc-do-command 0 "unget" file 'MASTER "-n" (if rev (concat "-r" rev)))
+ (vc-do-command 0 "get" file 'MASTER "-g" (if rev (concat "-r" rev)))
)
- (vc-do-command 0 "rcs" "-M" (concat "-u" rev) (concat "-l" rev) file))
+ (vc-do-command 0 "rcs" file 'MASTER ;RCS
+ "-M" (concat "-u" rev) (concat "-l" rev))
+ (error "You cannot steal a CVS lock; there are no CVS locks to steal.") ;CVS
+ )
(vc-file-setprop file 'vc-locking-user (user-login-name))
(message "Stealing lock on %s...done" file)
)
;; smarter when we support multiple branches.
(message "Removing last change from %s..." file)
(vc-backend-dispatch file
- (vc-do-command 0 "rmdel" file (concat "-r" target))
- (vc-do-command 0 "rcs" file (concat "-o" target))
+ (vc-do-command 0 "rmdel" file 'MASTER (concat "-r" target))
+ (vc-do-command 0 "rcs" file 'MASTER (concat "-o" target))
+ nil ;; this is never reached under CVS
)
(message "Removing last change from %s...done" file)
)
(defun vc-backend-print-log (file)
;; Print change log associated with FILE to buffer *vc*.
- (vc-do-command 0
- (vc-backend-dispatch file "prs" "rlog")
- file)
- )
+ (vc-backend-dispatch
+ file
+ (vc-do-command 0 "prs" file 'MASTER)
+ (vc-do-command 0 "rlog" file 'MASTER)
+ (vc-do-command 0 "cvs" file 'WORKFILE "rlog")))
(defun vc-backend-assign-name (file name)
;; Assign to a FILE's latest version a given NAME.
(vc-backend-dispatch file
- (vc-add-triple name file (vc-latest-version file)) ;; SCCS
- (vc-do-command 0 "rcs" file (concat "-n" name ":")) ;; RCS
+ (vc-add-triple name file (vc-latest-version file)) ;; SCCS
+ (vc-do-command 0 "rcs" file 'MASTER (concat "-n" name ":")) ;; RCS
+ (vc-do-command 0 "cvs" file 'WORKFILE "tag" name) ;; CVS
)
)
-(defun vc-backend-diff (file oldvers &optional newvers)
- ;; Get a difference report between two versions
- (if (eq (vc-backend-deduce file) 'SCCS)
+(defun vc-backend-diff (file &optional oldvers newvers cmp)
+ ;; Get a difference report between two versions of FILE.
+ ;; Get only a brief comparison report if CMP, a difference report otherwise.
+ (let ((backend (vc-backend file)))
+ (cond
+ ((eq backend 'SCCS)
(setq oldvers (vc-lookup-triple file oldvers))
(setq newvers (vc-lookup-triple file newvers)))
- (apply 'vc-do-command 1
- (or (vc-backend-dispatch file "vcdiff" "rcsdiff")
- (vc-registration-error file))
- file
- "-q"
- (and oldvers (concat "-r" oldvers))
- (and newvers (concat "-r" newvers))
- (if (listp diff-switches)
- diff-switches
- (list diff-switches))
- ))
+ ((eq backend 'RCS)
+ (if (not oldvers) (setq oldvers (vc-workfile-version file)))))
+ ;; SCCS and RCS shares a lot of code.
+ (cond
+ ((or (eq backend 'SCCS) (eq backend 'RCS))
+ (let* ((command (if (eq backend 'SCCS)
+ "vcdiff"
+ "rcsdiff"))
+ (mode (if (eq backend 'RCS) 'WORKFILE 'MASTER))
+ (options (append (list (and cmp "--brief")
+ "-q"
+ (and oldvers (concat "-r" oldvers))
+ (and newvers (concat "-r" newvers)))
+ (and (not cmp)
+ (if (listp diff-switches)
+ diff-switches
+ (list diff-switches)))))
+ (status (apply 'vc-do-command 2 command file mode options)))
+ ;; Some RCS versions don't understand "--brief"; work around this.
+ (if (eq status 2)
+ (apply 'vc-do-command 1 command file 'WORKFILE
+ (if cmp (cdr options) options))
+ status)))
+ ;; CVS is different.
+ ;; cmp is not yet implemented -- we always do a full diff.
+ ((eq backend 'CVS)
+ (if (string= (vc-workfile-version file) "0") ;CVS
+ ;; This file is added but not yet committed; there is no master file.
+ ;; diff it against /dev/null.
+ (if (or oldvers newvers)
+ (error "No revisions of %s exists" file)
+ (apply 'vc-do-command
+ 1 "diff" file 'WORKFILE "/dev/null"
+ (if (listp diff-switches)
+ diff-switches
+ (list diff-switches))))
+ (apply 'vc-do-command
+ 1 "cvs" file 'WORKFILE "diff"
+ (and oldvers (concat "-r" oldvers))
+ (and newvers (concat "-r" newvers))
+ (if (listp diff-switches)
+ diff-switches
+ (list diff-switches)))))
+ (t
+ (vc-registration-error file)))))
+
+(defun vc-backend-merge-news (file)
+ ;; Merge in any new changes made to FILE.
+ (vc-backend-dispatch
+ file
+ (error "vc-backend-merge-news not meaningful for SCCS files") ;SCCS
+ (error "vc-backend-merge-news not meaningful for RCS files") ;RCS
+ (vc-do-command 1 "cvs" file 'WORKFILE "update") ;CVS
+ ))
(defun vc-check-headers ()
"Check if the current file has any headers in it."
(vc-backend-dispatch buffer-file-name
(re-search-forward "%[MIRLBSDHTEGUYFPQCZWA]%" nil t) ;; SCCS
(re-search-forward "\\$[A-Za-z\300-\326\330-\366\370-\377]+\\(: [\t -#%-\176\240-\377]*\\)?\\$" nil t) ;; RCS
+ 'RCS ;; CVS works like RCS in this regard.
)
))
\\[vc-revert-buffer] revert buffer to latest version
\\[vc-cancel-version] undo latest checkin
\\[vc-diff] show diffs between file versions
+\\[vc-version-other-window] visit old version in another window
\\[vc-directory] show all files locked by any user in or below .
\\[vc-update-change-log] add change log entry from recent checkins
vc-header-alist Which keywords to insert when adding headers
with \\[vc-insert-headers]. Defaults to
- '(\"\%\W\%\") under SCCS, '(\"\$Id\$\") under RCS.
+ '(\"\%\W\%\") under SCCS, '(\"\$Id\$\") under
+ RCS and CVS.
vc-static-header-alist By default, version headers inserted in C files
get stuffed in a static string area so that
- ident(RCS) or what(SCCS) can see them in the
- compiled object code. You can override this
- by setting this variable to nil, or change
+ ident(RCS/CVS) or what(SCCS) can see them in
+ the compiled object code. You can override
+ this by setting this variable to nil, or change
the header template by changing it.
vc-command-messages if non-nil, display run messages from the
(defun vc-file-tree-walk (func &rest args)
"Walk recursively through default directory.
Invoke FUNC f ARGS on each non-directory file f underneath it."
- (vc-file-tree-walk-internal default-directory func args)
+ (vc-file-tree-walk-internal (expand-file-name default-directory) func args)
(message "Traversing directory %s...done" default-directory))
(defun vc-file-tree-walk-internal (file func args)
(if (not (file-directory-p file))
(apply func file args)
- (message "Traversing directory %s..." file)
+ (message "Traversing directory %s..." (abbreviate-file-name file))
(let ((dir (file-name-as-directory file)))
(mapcar
(function
(lambda (f) (or
(string-equal f ".")
(string-equal f "..")
+ (member f vc-directory-exclusion-list)
(let ((dirf (concat dir f)))
(or
(file-symlink-p dirf) ;; Avoid possible loops
;;; DEVELOPER'S NOTES ON CONCURRENCY PROBLEMS IN THIS CODE
;;;
;;; These may be useful to anyone who has to debug or extend the package.
+;;; (Note that this information corresponds to versions 5.x. Some of it
+;;; might have been invalidated by the additions to support branching
+;;; and RCS keyword lookup. AS, 1995/03/24)
;;;
;;; A fundamental problem in VC is that there are time windows between
;;; vc-next-action's computations of the file's version-control state and
HCoop / bpt / emacs.git / blobdiff