;;; vc-svn.el --- non-resident support for Subversion version-control
-;; Copyright (C) 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+;; Copyright (C) 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
;; Author: FSF (see vc.el for full credits)
;; Maintainer: Stefan Monnier <monnier@gnu.org>
:type '(repeat string)
:group 'vc)
-(defconst vc-svn-use-edit nil
- ;; Subversion does not provide this feature (yet).
- "*Non-nil means to use `svn edit' to \"check out\" a file.
-This is only meaningful if you don't use the implicit checkout model
-\(i.e. if you have $SVNREAD set)."
- ;; :type 'boolean
- ;; :version "22.1"
- ;; :group 'vc
- )
+;; We want to autoload it for use by the autoloaded version of
+;; vc-svn-registered, but we want the value to be compiled at startup, not
+;; at dump time.
+;; ;;;###autoload
+(defconst vc-svn-admin-directory
+ (cond ((and (memq system-type '(cygwin windows-nt ms-dos))
+ (getenv "SVN_ASP_DOT_NET_HACK"))
+ "_svn")
+ (t ".svn"))
+ "The name of the \".svn\" subdirectory or its equivalent.")
;;;
;;; State-querying functions
;;;
+;;; vc-svn-admin-directory is generally not defined when the
+;;; autoloaded function is called.
+
;;;###autoload (defun vc-svn-registered (f)
-;;;###autoload (when (file-readable-p (expand-file-name
-;;;###autoload ".svn/entries" (file-name-directory f)))
+;;;###autoload (let ((admin-dir (cond ((and (eq system-type 'windows-nt)
+;;;###autoload (getenv "SVN_ASP_DOT_NET_HACK"))
+;;;###autoload "_svn")
+;;;###autoload (t ".svn"))))
+;;;###autoload (when (file-readable-p (expand-file-name
+;;;###autoload (concat admin-dir "/entries")
+;;;###autoload (file-name-directory f)))
;;;###autoload (load "vc-svn")
-;;;###autoload (vc-svn-registered f)))
+;;;###autoload (vc-svn-registered f))))
;;;###autoload
(add-to-list 'completion-ignored-extensions ".svn/")
(defun vc-svn-registered (file)
"Check if FILE is SVN registered."
- (when (file-readable-p (expand-file-name ".svn/entries"
+ (when (file-readable-p (expand-file-name (concat vc-svn-admin-directory
+ "/entries")
(file-name-directory file)))
(with-temp-buffer
(cd (file-name-directory file))
;; an `error' by vc-do-command.
(error nil))))
(when (eq 0 status)
- (vc-svn-parse-status t)
- (eq 'SVN (vc-file-getprop file 'vc-backend)))))))
+ (vc-svn-parse-status file))))))
(defun vc-svn-state (file &optional localp)
"SVN-specific version of `vc-state'."
(with-temp-buffer
(cd (file-name-directory file))
(vc-svn-command t 0 file "status" (if localp "-v" "-u"))
- (vc-svn-parse-status localp)
- (vc-file-getprop file 'vc-state)))
+ (vc-svn-parse-status file)))
(defun vc-svn-state-heuristic (file)
"SVN-specific state heuristic."
;; enough. Otherwise it might fail with remote repositories.
(with-temp-buffer
(vc-svn-command t 0 nil "status" (if localp "-v" "-u"))
- (vc-svn-parse-status localp))))
+ (vc-svn-parse-status))))
(defun vc-svn-workfile-version (file)
"SVN-specific version of `vc-workfile-version'."
((eq svn-state 'needs-patch) "(patch)")
((eq svn-state 'needs-merge) "(merge)"))))
+(defun vc-svn-previous-version (file rev)
+ (let ((newrev (1- (string-to-number rev))))
+ (when (< 0 newrev)
+ (number-to-string newrev))))
+
+(defun vc-svn-next-version (file rev)
+ (let ((newrev (1+ (string-to-number rev))))
+ ;; The "workfile version" is an uneasy conceptual fit under Subversion;
+ ;; we use it as the upper bound until a better idea comes along. If the
+ ;; workfile version W coincides with the tree's latest revision R, then
+ ;; this check prevents a "no such revision: R+1" error. Otherwise, it
+ ;; inhibits showing of W+1 through R, which could be considered anywhere
+ ;; from gracious to impolite.
+ (unless (< (string-to-number (vc-file-getprop file 'vc-workfile-version))
+ newrev)
+ (number-to-string newrev))))
+
;;;
;;; State-changing functions
(defun vc-svn-responsible-p (file)
"Return non-nil if SVN thinks it is responsible for FILE."
- (file-directory-p (expand-file-name ".svn"
+ (file-directory-p (expand-file-name vc-svn-admin-directory
(if (file-directory-p file)
file
(file-name-directory file)))))
(defun vc-svn-update (file editable rev switches)
(if (and (file-exists-p file) (not rev))
- ;; If no revision was specified, just make the file writable
- ;; if necessary (using `svn-edit' if requested).
- (and editable (not (eq (vc-svn-checkout-model file) 'implicit))
- (if vc-svn-use-edit
- (vc-svn-command nil 0 file "edit")
- (set-file-modes file (logior (file-modes file) 128))
- (if (equal file buffer-file-name) (toggle-read-only -1))))
+ ;; If no revision was specified, there's nothing to do.
+ nil
;; Check out a particular version (or recreate the file).
(vc-file-setprop file 'vc-workfile-version nil)
(apply 'vc-svn-command nil 0 file
(defun vc-svn-revert (file &optional contents-done)
"Revert FILE to the version it was based on."
(unless contents-done
- (vc-svn-command nil 0 file "revert"))
- (unless (eq (vc-checkout-model file) 'implicit)
- (if vc-svn-use-edit
- (vc-svn-command nil 0 file "unedit")
- ;; Make the file read-only by switching off all w-bits
- (set-file-modes file (logand (file-modes file) 3950)))))
+ (vc-svn-command nil 0 file "revert")))
(defun vc-svn-merge (file first-version &optional second-version)
"Merge changes into current working copy of FILE.
(if (looking-at "At revision")
0 ;; there were no news; indicate success
(if (re-search-forward
- (concat "^\\([CGDU] \\)?"
+ ;; Newer SVN clients have 3 columns of chars (one for the
+ ;; file's contents, then second for its properties, and the
+ ;; third for lock-grabbing info), before the 2 spaces.
+ ;; We also used to match the filename in column 0 without any
+ ;; meta-info before it, but I believe this can never happen.
+ (concat "^\\(\\([ACGDU]\\)\\(.[B ]\\)? \\)"
(regexp-quote (file-name-nondirectory file)))
nil t)
(cond
;; Merge successful, we are in sync with repository now
- ((string= (match-string 1) "U ")
+ ((string= (match-string 2) "U")
(vc-file-setprop file 'vc-state 'up-to-date)
(vc-file-setprop file 'vc-checkout-time
(nth 5 (file-attributes file)))
0);; indicate success to the caller
;; Merge successful, but our own changes are still in the file
- ((string= (match-string 1) "G ")
+ ((string= (match-string 2) "G")
(vc-file-setprop file 'vc-state 'edited)
0);; indicate success to the caller
;; Conflicts detected!
(vc-svn-command
buffer
(if (and (vc-stay-local-p file) (fboundp 'start-process)) 'async 0)
- file "log")))
+ file "log"
+ ;; By default Subversion only shows the log upto the working version,
+ ;; whereas we also want the log of the subsequent commits. At least
+ ;; that's what the vc-cvs.el code does.
+ "-rHEAD:0")))
(defun vc-svn-diff (file &optional oldvers newvers buffer)
"Get a difference report using SVN between two versions of FILE."
;;; Internal functions
;;;
+(defcustom vc-svn-program "svn"
+ "Name of the svn executable."
+ :type 'string
+ :group 'vc)
+
(defun vc-svn-command (buffer okstatus file &rest flags)
"A wrapper around `vc-do-command' for use in vc-svn.el.
The difference to vc-do-command is that this function always invokes `svn',
and that it passes `vc-svn-global-switches' to it before FLAGS."
- (apply 'vc-do-command buffer okstatus "svn" file
+ (apply 'vc-do-command buffer okstatus vc-svn-program file
(if (stringp vc-svn-global-switches)
(cons vc-svn-global-switches flags)
(append vc-svn-global-switches
(let ((coding-system-for-read
(or file-name-coding-system
default-file-name-coding-system)))
- (vc-insert-file (expand-file-name ".svn/entries" dirname)))
+ (vc-insert-file (expand-file-name (concat vc-svn-admin-directory
+ "/entries")
+ dirname)))
(goto-char (point-min))
(when (re-search-forward
- ;; Old `svn' used name="svn:dir", newer use just name="".
+ ;; Old `svn' used name="svn:this_dir", newer use just name="".
(concat "name=\"\\(?:svn:this_dir\\)?\"[\n\t ]*"
"\\(?:[-a-z]+=\"[^\"]*\"[\n\t ]*\\)*?"
- "url=\"\\([^\"]+\\)\"") nil t)
+ "url=\"\\(?1:[^\"]+\\)\""
+ ;; Yet newer ones don't use XML any more.
+ "\\|^\ndir\n[0-9]+\n\\(?1:.*\\)") nil t)
;; This is not a hostname but a URL. This may actually be considered
;; as a feature since it allows vc-svn-stay-local to specify different
;; behavior for different modules on the same server.
(match-string 1))))
-(defun vc-svn-parse-status (localp)
+(defun vc-svn-parse-status (&optional filename)
"Parse output of \"svn status\" command in the current buffer.
-Set file properties accordingly. Unless FULL is t, parse only
-essential information."
+Set file properties accordingly. Unless FILENAME is non-nil, parse only
+information about FILENAME and return its status."
(let (file status)
(goto-char (point-min))
(while (re-search-forward
- "^[ ADMCI?!~][ MC][ L][ +][ S]..\\([ *]\\) +\\([-0-9]+\\) +\\([0-9?]+\\) +\\([^ ]+\\) +" nil t)
- (setq file (expand-file-name
- (buffer-substring (point) (line-end-position))))
+ ;; Ignore the files with status in [IX?].
+ "^[ ACDGMR!~][ MC][ L][ +][ S]..\\([ *]\\) +\\([-0-9]+\\) +\\([0-9?]+\\) +\\([^ ]+\\) +" nil t)
+ ;; If the username contains spaces, the output format is ambiguous,
+ ;; so don't trust the output's filename unless we have to.
+ (setq file (or filename
+ (expand-file-name
+ (buffer-substring (point) (line-end-position)))))
(setq status (char-after (line-beginning-position)))
(unless (eq status ??)
- (vc-file-setprop file 'vc-backend 'SVN)
+ ;; `vc-BACKEND-registered' must not set vc-backend,
+ ;; which is instead set in vc-registered.
+ (unless filename (vc-file-setprop file 'vc-backend 'SVN))
;; Use the last-modified revision, so that searching in vc-print-log
;; output works.
(vc-file-setprop file 'vc-workfile-version (match-string 3))
(if (eq (char-after (match-beginning 1)) ?*)
'needs-merge
'edited))
- (t 'edited)))))))
+ (t 'edited)))))
+ (if filename (vc-file-getprop filename 'vc-state))))
(defun vc-svn-dir-state-heuristic (dir)
"Find the SVN state of all files in DIR, using only local information."