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diff --git a/lisp/vc/vc-arch.el b/lisp/vc/vc-arch.el new file mode 100644 index 00000000000..a723f98b8ae --- /dev/null +++ b/lisp/vc/vc-arch.el @@ -0,0 +1,641 @@ +;;; vc-arch.el --- VC backend for the Arch version-control system + +;; Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 +;; Free Software Foundation, Inc. + +;; Author: FSF (see vc.el for full credits) +;; Maintainer: Stefan Monnier <monnier@gnu.org> + +;; This file is part of GNU Emacs. + +;; GNU Emacs is free software: you can redistribute it and/or modify +;; it under the terms of the GNU General Public License as published by +;; the Free Software Foundation, either version 3 of the License, or +;; (at your option) any later version. + +;; GNU Emacs is distributed in the hope that it will be useful, +;; but WITHOUT ANY WARRANTY; without even the implied warranty of +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;; GNU General Public License for more details. + +;; You should have received a copy of the GNU General Public License +;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. + +;;; Commentary: + +;; The home page of the Arch version control system is at +;; +;; http://www.gnuarch.org/ +;; +;; This is derived from vc-mcvs.el as follows: +;; - cp vc-mcvs.el vc-arch.el and then M-% mcvs RET arch RET +;; +;; Then of course started the hacking. +;; +;; What has been partly tested: +;; - Open a file. +;; - C-x v = without any prefix arg. +;; - C-x v v to commit a change to a single file. + +;; Bugs: + +;; - *VC-log*'s initial content lacks the `Summary:' lines. +;; - All files under the tree are considered as "under Arch's control" +;; without regards to =tagging-method and such. +;; - Files are always considered as `edited'. +;; - C-x v l does not work. +;; - C-x v i does not work. +;; - C-x v ~ does not work. +;; - C-x v u does not work. +;; - C-x v s does not work. +;; - C-x v r does not work. +;; - VC directory listings do not work. +;; - And more... + +;;; Code: + +(eval-when-compile (require 'vc) (require 'cl)) + +;;; Properties of the backend + +(defun vc-arch-revision-granularity () 'repository) +(defun vc-arch-checkout-model (files) 'implicit) + +;;; +;;; Customization options +;;; + +;; It seems Arch diff does not accept many options, so this is not +;; very useful. It exists mainly so that the VC backends are all +;; consistent with regards to their treatment of diff switches. +(defcustom vc-arch-diff-switches t + "String or list of strings specifying switches for Arch diff under VC. +If nil, use the value of `vc-diff-switches'. If t, use no switches." + :type '(choice (const :tag "Unspecified" nil) + (const :tag "None" t) + (string :tag "Argument String") + (repeat :tag "Argument List" :value ("") string)) + :version "23.1" + :group 'vc) + +(define-obsolete-variable-alias 'vc-arch-command 'vc-arch-program "23.1") + +(defcustom vc-arch-program + (let ((candidates '("tla" "baz"))) + (while (and candidates (not (executable-find (car candidates)))) + (setq candidates (cdr candidates))) + (or (car candidates) "tla")) + "Name of the Arch executable." + :type 'string + :group 'vc) + +;; Clear up the cache to force vc-call to check again and discover +;; new functions when we reload this file. +(put 'Arch 'vc-functions nil) + +;;;###autoload (defun vc-arch-registered (file) +;;;###autoload (if (vc-find-root file "{arch}/=tagging-method") +;;;###autoload (progn +;;;###autoload (load "vc-arch") +;;;###autoload (vc-arch-registered file)))) + +(defun vc-arch-add-tagline () + "Add an `arch-tag' to the end of the current file." + (interactive) + (comment-normalize-vars) + (goto-char (point-max)) + (forward-comment -1) + (skip-chars-forward " \t\n") + (cond + ((not (bolp)) (insert "\n\n")) + ((not (eq ?\n (char-before (1- (point))))) (insert "\n"))) + (let ((beg (point)) + (idfile (and buffer-file-name + (expand-file-name + (concat ".arch-ids/" + (file-name-nondirectory buffer-file-name) + ".id") + (file-name-directory buffer-file-name))))) + (insert "arch-tag: ") + (if (and idfile (file-exists-p idfile)) + ;; If the file is unreadable, we do want to get an error here. + (progn + (insert-file-contents idfile) + (forward-line 1) + (delete-file idfile)) + (condition-case nil + (call-process "uuidgen" nil t) + (file-error (insert (format "%s <%s> %s" + (current-time-string) + user-mail-address + (+ (nth 2 (current-time)) + (buffer-size))))))) + (comment-region beg (point)))) + +(defconst vc-arch-tagline-re "^\\W*arch-tag:[ \t]*\\(.*[^ \t\n]\\)") + +(defmacro vc-with-current-file-buffer (file &rest body) + (declare (indent 2) (debug t)) + `(let ((-kill-buf- nil) + (-file- ,file)) + (with-current-buffer (or (find-buffer-visiting -file-) + (setq -kill-buf- (generate-new-buffer " temp"))) + ;; Avoid find-file-literally since it can do many undesirable extra + ;; things (among which, call us back into an infinite loop). + (if -kill-buf- (insert-file-contents -file-)) + (unwind-protect + (progn ,@body) + (if (buffer-live-p -kill-buf-) (kill-buffer -kill-buf-)))))) + +(defun vc-arch-file-source-p (file) + "Can return nil, `maybe' or a non-nil value. +Only the value `maybe' can be trusted :-(." + ;; FIXME: Check the tag and name of parent dirs. + (unless (string-match "\\`[,+]" (file-name-nondirectory file)) + (or (string-match "\\`{arch}/" + (file-relative-name file (vc-arch-root file))) + (file-exists-p + ;; Check the presence of an ID file. + (expand-file-name + (concat ".arch-ids/" (file-name-nondirectory file) ".id") + (file-name-directory file))) + ;; Check the presence of a tagline. + (vc-with-current-file-buffer file + (save-excursion + (goto-char (point-max)) + (or (re-search-backward vc-arch-tagline-re (- (point) 1000) t) + (progn + (goto-char (point-min)) + (re-search-forward vc-arch-tagline-re (+ (point) 1000) t))))) + ;; FIXME: check =tagging-method to see whether untagged files might + ;; be source or not. + (with-current-buffer + (find-file-noselect (expand-file-name "{arch}/=tagging-method" + (vc-arch-root file))) + (let ((untagged-source t)) ;Default is `names'. + (save-excursion + (goto-char (point-min)) + (if (re-search-forward "^[ \t]*\\(\\(tagline\\|implicit\\|names\\)\\|explicit\\)" nil t) + (setq untagged-source (match-end 2))) + (if (re-search-forward "^[ \t]*untagged-source[ \t]+\\(\\(source\\)\\|precious\\|backup\\|junk\\|unrecognized\\)" nil t) + (setq untagged-source (match-end 2)))) + (if untagged-source 'maybe)))))) + +(defun vc-arch-file-id (file) + ;; Don't include the kind of ID this is because it seems to be too messy. + (let ((idfile (expand-file-name + (concat ".arch-ids/" (file-name-nondirectory file) ".id") + (file-name-directory file)))) + (if (file-exists-p idfile) + (with-temp-buffer + (insert-file-contents idfile) + (looking-at ".*[^ \n\t]") + (match-string 0)) + (with-current-buffer (find-file-noselect file) + (save-excursion + (goto-char (point-max)) + (if (or (re-search-backward vc-arch-tagline-re (- (point) 1000) t) + (progn + (goto-char (point-min)) + (re-search-forward vc-arch-tagline-re (+ (point) 1000) t))) + (match-string 1) + (concat "./" (file-relative-name file (vc-arch-root file))))))))) + +(defun vc-arch-tagging-method (file) + (with-current-buffer + (find-file-noselect + (expand-file-name "{arch}/=tagging-method" (vc-arch-root file))) + (save-excursion + (goto-char (point-min)) + (if (re-search-forward + "^[ \t]*\\(tagline\\|implicit\\|names\\|explicit\\)" nil t) + (intern (match-string 1)) + 'names)))) + +(defun vc-arch-root (file) + "Return the root directory of an Arch project, if any." + (or (vc-file-getprop file 'arch-root) + ;; Check the =tagging-method, in case someone naively manually + ;; creates a {arch} directory somewhere. + (let ((root (vc-find-root file "{arch}/=tagging-method"))) + (when root + (vc-file-setprop + file 'arch-root root))))) + +(defun vc-arch-register (files &optional rev comment) + (if rev (error "Explicit initial revision not supported for Arch")) + (dolist (file files) + (let ((tagmet (vc-arch-tagging-method file))) + (if (and (memq tagmet '(tagline implicit)) comment-start) + (with-current-buffer (find-file-noselect file) + (if (buffer-modified-p) + (error "Save %s first" (buffer-name))) + (vc-arch-add-tagline) + (save-buffer))))) + (vc-arch-command nil 0 files "add")) + +(defun vc-arch-registered (file) + ;; Don't seriously check whether it's source or not. Checking would + ;; require running TLA, so it's better to not do it, so it also works if + ;; TLA is not installed. + (and (vc-arch-root file) + (vc-arch-file-source-p file))) + +(defun vc-arch-default-version (file) + (or (vc-file-getprop (vc-arch-root file) 'arch-default-version) + (let* ((root (vc-arch-root file)) + (f (expand-file-name "{arch}/++default-version" root))) + (if (file-readable-p f) + (vc-file-setprop + root 'arch-default-version + (with-temp-buffer + (insert-file-contents f) + ;; Strip the terminating newline. + (buffer-substring (point-min) (1- (point-max))))))))) + +(defun vc-arch-workfile-unchanged-p (file) + "Stub: arch workfiles are always considered to be in a changed state," + nil) + +(defun vc-arch-state (file) + ;; There's no checkout operation and merging is not done from VC + ;; so the only operation that's state dependent that VC supports is commit + ;; which is only activated if the file is `edited'. + (let* ((root (vc-arch-root file)) + (ver (vc-arch-default-version file)) + (pat (concat "\\`" (subst-char-in-string ?/ ?% ver))) + (dir (expand-file-name ",,inode-sigs/" + (expand-file-name "{arch}" root))) + (sigfile nil)) + (dolist (f (if (file-directory-p dir) (directory-files dir t pat))) + (if (or (not sigfile) (file-newer-than-file-p f sigfile)) + (setq sigfile f))) + (if (not sigfile) + 'edited ;We know nothing. + (let ((id (vc-arch-file-id file))) + (setq id (replace-regexp-in-string "[ \t]" "_" id)) + (with-current-buffer (find-file-noselect sigfile) + (goto-char (point-min)) + (while (and (search-forward id nil 'move) + (save-excursion + (goto-char (- (match-beginning 0) 2)) + ;; For `names', the lines start with `?./foo/bar'. + ;; For others there's 2 chars before the ./foo/bar. + (or (not (or (bolp) (looking-at "\n?"))) + ;; Ignore E_ entries used for foo.id files. + (looking-at "E_"))))) + (if (eobp) + ;; ID not found. + (if (equal (file-name-nondirectory sigfile) + (subst-char-in-string + ?/ ?% (vc-arch-working-revision file))) + 'added + ;; Might be `added' or `up-to-date' as well. + ;; FIXME: Check in the patch logs to find out. + 'edited) + ;; Found the ID, let's check the inode. + (if (not (re-search-forward + "\t.*mtime=\\([0-9]+\\):size=\\([0-9]+\\)" + (line-end-position) t)) + ;; Buh? Unexpected format. + 'edited + (let ((ats (file-attributes file))) + (if (and (eq (nth 7 ats) (string-to-number (match-string 2))) + (equal (format-time-string "%s" (nth 5 ats)) + (match-string 1))) + 'up-to-date + 'edited))))))))) + +(defun vc-arch-dir-status (dir callback) + "Run 'tla inventory' for DIR and pass results to CALLBACK. +CALLBACK expects (ENTRIES &optional MORE-TO-COME); see +`vc-dir-refresh'." + (let ((default-directory dir)) + (vc-arch-command t 'async nil "changes")) + ;; The updating could be done asynchronously. + (vc-exec-after + `(vc-arch-after-dir-status ',callback))) + +(defun vc-arch-after-dir-status (callback) + (let* ((state-map '(("M " . edited) + ("Mb" . edited) ;binary + ("D " . removed) + ("D/" . removed) ;directory + ("A " . added) + ("A/" . added) ;directory + ("=>" . renamed) + ("/>" . renamed) ;directory + ("lf" . symlink-to-file) + ("fl" . file-to-symlink) + ("--" . permissions-changed) + ("-/" . permissions-changed) ;directory + )) + (state-map-regexp (regexp-opt (mapcar 'car state-map) t)) + (entry-regexp (concat "^" state-map-regexp " \\(.*\\)$")) + result) + (goto-char (point-min)) + ;;(message "Got %s" (buffer-string)) + (while (re-search-forward entry-regexp nil t) + (let* ((state-string (match-string 1)) + (state (cdr (assoc state-string state-map))) + (filename (match-string 2))) + (push (list filename state) result))) + + (funcall callback result nil))) + +(defun vc-arch-working-revision (file) + (let* ((root (expand-file-name "{arch}" (vc-arch-root file))) + (defbranch (vc-arch-default-version file))) + (when (and defbranch (string-match "\\`\\(.+@[^/\n]+\\)/\\(\\(\\(.*?\\)\\(?:--.*\\)?\\)--.*\\)\\'" defbranch)) + (let* ((archive (match-string 1 defbranch)) + (category (match-string 4 defbranch)) + (branch (match-string 3 defbranch)) + (version (match-string 2 defbranch)) + (sealed nil) (rev-nb 0) + (rev nil) + logdir tmp) + (setq logdir (expand-file-name category root)) + (setq logdir (expand-file-name branch logdir)) + (setq logdir (expand-file-name version logdir)) + (setq logdir (expand-file-name archive logdir)) + (setq logdir (expand-file-name "patch-log" logdir)) + (dolist (file (if (file-directory-p logdir) (directory-files logdir))) + ;; Revision names go: base-0, patch-N, version-0, versionfix-M. + (when (and (eq (aref file 0) ?v) (not sealed)) + (setq sealed t rev-nb 0)) + (if (and (string-match "-\\([0-9]+\\)\\'" file) + (setq tmp (string-to-number (match-string 1 file))) + (or (not sealed) (eq (aref file 0) ?v)) + (>= tmp rev-nb)) + (setq rev-nb tmp rev file))) + ;; Use "none-000" if the tree hasn't yet been committed on the + ;; default branch. We'll then get "Arch:000[branch]" on the mode-line. + (concat defbranch "--" (or rev "none-000")))))) + + +(defcustom vc-arch-mode-line-rewrite + '(("\\`.*--\\(.*--.*\\)--\\(v?\\).*-\\([0-9]+\\)\\'" . "\\2\\3[\\1]")) + "Rewrite rules to shorten Arch's revision names on the mode-line." + :type '(repeat (cons regexp string)) + :group 'vc) + +(defun vc-arch-mode-line-string (file) + "Return string for placement in modeline by `vc-mode-line' for FILE." + (let ((rev (vc-working-revision file))) + (dolist (rule vc-arch-mode-line-rewrite) + (if (string-match (car rule) rev) + (setq rev (replace-match (cdr rule) t nil rev)))) + (format "Arch%c%s" + (case (vc-state file) + ((up-to-date needs-update) ?-) + (added ?@) + (t ?:)) + rev))) + +(defun vc-arch-diff3-rej-p (rej) + (let ((attrs (file-attributes rej))) + (and attrs (< (nth 7 attrs) 60) + (with-temp-buffer + (insert-file-contents rej) + (goto-char (point-min)) + (looking-at "Conflicts occured, diff3 conflict markers left in file\\."))))) + +(defun vc-arch-delete-rej-if-obsolete () + "For use in `after-save-hook'." + (save-excursion + (let ((rej (concat buffer-file-name ".rej"))) + (when (and buffer-file-name (vc-arch-diff3-rej-p rej)) + (unless (re-search-forward "^<<<<<<< " nil t) + ;; The .rej file is obsolete. + (condition-case nil (delete-file rej) (error nil)) + ;; Remove the hook so that it is not called multiple times. + (remove-hook 'after-save-hook 'vc-arch-delete-rej-if-obsolete t)))))) + +(defun vc-arch-find-file-hook () + (let ((rej (concat buffer-file-name ".rej"))) + (when (and buffer-file-name (file-exists-p rej)) + (if (vc-arch-diff3-rej-p rej) + (save-excursion + (goto-char (point-min)) + (if (not (re-search-forward "^<<<<<<< " nil t)) + ;; The .rej file is obsolete. + (condition-case nil (delete-file rej) (error nil)) + (smerge-mode 1) + (add-hook 'after-save-hook + 'vc-arch-delete-rej-if-obsolete nil t) + (message "There are unresolved conflicts in this file"))) + (message "There are unresolved conflicts in %s" + (file-name-nondirectory rej)))))) + +(defun vc-arch-checkin (files rev comment &optional extra-args-ignored) + (if rev (error "Committing to a specific revision is unsupported")) + ;; FIXME: This implementation probably only works for singleton filesets + (let ((summary (file-relative-name (car files) (vc-arch-root (car files))))) + ;; Extract a summary from the comment. + (when (or (string-match "\\`Summary:[ \t]*\\(.*[^ \t\n]\\)\\([ \t]*\n\\)*" comment) + (string-match "\\`[ \t]*\\(.*[^ \t\n]\\)[ \t]*\\(\n?\\'\\|\n\\([ \t]*\n\\)+\\)" comment)) + (setq summary (match-string 1 comment)) + (setq comment (substring comment (match-end 0)))) + (vc-arch-command nil 0 files "commit" "-s" summary "-L" comment "--" + (vc-switches 'Arch 'checkin)))) + +(defun vc-arch-diff (files &optional oldvers newvers buffer) + "Get a difference report using Arch between two versions of FILES." + ;; FIXME: This implementation only works for singleton filesets. To make + ;; it work for more cases, we have to either call `file-diffs' manually on + ;; each and every `file' in the fileset, or use `changes --diffs' (and + ;; variants) and maybe filter the output with `filterdiff' to only include + ;; the files in which we're interested. + (let ((file (car files))) + (if (and newvers + (vc-up-to-date-p file) + (equal newvers (vc-working-revision file))) + ;; Newvers is the base revision and the current file is unchanged, + ;; so we can diff with the current file. + (setq newvers nil)) + (if newvers + (error "Diffing specific revisions not implemented") + (let* (process-file-side-effects + (async (not vc-disable-async-diff)) + ;; Run the command from the root dir. + (default-directory (vc-arch-root file)) + (status + (vc-arch-command + (or buffer "*vc-diff*") + (if async 'async 1) + nil "file-diffs" + (vc-switches 'Arch 'diff) + (file-relative-name file) + (if (equal oldvers (vc-working-revision file)) + nil + oldvers)))) + (if async 1 status))))) ; async diff, pessimistic assumption. + +(defun vc-arch-delete-file (file) + (vc-arch-command nil 0 file "rm")) + +(defun vc-arch-rename-file (old new) + (vc-arch-command nil 0 new "mv" (file-relative-name old))) + +(defalias 'vc-arch-responsible-p 'vc-arch-root) + +(defun vc-arch-command (buffer okstatus file &rest flags) + "A wrapper around `vc-do-command' for use in vc-arch.el." + (apply 'vc-do-command (or buffer "*vc*") okstatus vc-arch-program file flags)) + +(defun vc-arch-init-revision () nil) + +;;; Completion of versions and revisions. + +(defun vc-arch--version-completion-table (root string) + (delq nil + (mapcar + (lambda (d) + (when (string-match "/\\([^/]+\\)/\\([^/]+\\)\\'" d) + (concat (match-string 2 d) "/" (match-string 1 d)))) + (let ((default-directory root)) + (file-expand-wildcards + (concat "*/*/" + (if (string-match "/" string) + (concat (substring string (match-end 0)) + "*/" (substring string 0 (match-beginning 0))) + (concat "*/" string)) + "*")))))) + +(defun vc-arch-revision-completion-table (files) + (lexical-let ((files files)) + (lambda (string pred action) + ;; FIXME: complete revision patches as well. + (let* ((root (expand-file-name "{arch}" (vc-arch-root (car files)))) + (table (vc-arch--version-completion-table root string))) + (complete-with-action action table string pred))))) + +;;; Trimming revision libraries. + +;; This code is not directly related to VC and there are many variants of +;; this functionality available as scripts, but I like this version better, +;; so maybe others will like it too. + +(defun vc-arch-trim-find-least-useful-rev (revs) + (let* ((first (pop revs)) + (second (pop revs)) + (third (pop revs)) + ;; We try to give more importance to recent revisions. The idea is + ;; that it's OK if checking out a revision 1000-patch-old is ten + ;; times slower than checking out a revision 100-patch-old. But at + ;; the same time a 2-patch-old rev isn't really ten times more + ;; important than a 20-patch-old, so we use an arbitrary constant + ;; "100" to reduce this effect for recent revisions. Making this + ;; constant a float has the side effect of causing the subsequent + ;; computations to be done as floats as well. + (max (+ 100.0 (car (or (car (last revs)) third)))) + (cost (lambda () (/ (- (car third) (car first)) (- max (car second))))) + (minrev second) + (mincost (funcall cost))) + (while revs + (setq first second) + (setq second third) + (setq third (pop revs)) + (when (< (funcall cost) mincost) + (setq minrev second) + (setq mincost (funcall cost)))) + minrev)) + +(defun vc-arch-trim-make-sentinel (revs) + (if (null revs) (lambda (proc msg) (message "VC-Arch trimming ... done")) + (lexical-let ((revs revs)) + (lambda (proc msg) + (message "VC-Arch trimming %s..." (file-name-nondirectory (car revs))) + (rename-file (car revs) (concat (car revs) "*rm*")) + (setq proc (start-process "vc-arch-trim" nil + "rm" "-rf" (concat (car revs) "*rm*"))) + (set-process-sentinel proc (vc-arch-trim-make-sentinel (cdr revs))))))) + +(defun vc-arch-trim-one-revlib (dir) + "Delete half of the revisions in the revision library." + (interactive "Ddirectory: ") + (let ((garbage (directory-files dir 'full "\\`,," 'nosort))) + (when garbage + (funcall (vc-arch-trim-make-sentinel garbage) nil nil))) + (let ((revs + (sort (delq nil + (mapcar + (lambda (f) + (when (string-match "-\\([0-9]+\\)\\'" f) + (cons (string-to-number (match-string 1 f)) f))) + (directory-files dir nil nil 'nosort))) + 'car-less-than-car)) + (subdirs nil)) + (when (cddr revs) + (dotimes (i (/ (length revs) 2)) + (let ((minrev (vc-arch-trim-find-least-useful-rev revs))) + (setq revs (delq minrev revs)) + (push minrev subdirs))) + (funcall (vc-arch-trim-make-sentinel + (mapcar (lambda (x) (expand-file-name (cdr x) dir)) subdirs)) + nil nil)))) + +(defun vc-arch-trim-revlib () + "Delete half of the revisions in the revision library." + (interactive) + (let ((rl-dir (with-output-to-string + (call-process vc-arch-program nil standard-output nil + "my-revision-library")))) + (while (string-match "\\(.*\\)\n" rl-dir) + (let ((dir (match-string 1 rl-dir))) + (setq rl-dir + (if (and (file-directory-p dir) (file-writable-p dir)) + dir + (substring rl-dir (match-end 0)))))) + (unless (file-writable-p rl-dir) + (error "No writable revlib directory found")) + (message "Revlib at %s" rl-dir) + (let* ((archives (directory-files rl-dir 'full "[^.]\\|...")) + (categories + (apply 'append + (mapcar (lambda (dir) + (when (file-directory-p dir) + (directory-files dir 'full "[^.]\\|..."))) + archives))) + (branches + (apply 'append + (mapcar (lambda (dir) + (when (file-directory-p dir) + (directory-files dir 'full "[^.]\\|..."))) + categories))) + (versions + (apply 'append + (mapcar (lambda (dir) + (when (file-directory-p dir) + (directory-files dir 'full "--.*--"))) + branches)))) + (mapc 'vc-arch-trim-one-revlib versions)) + )) + +(defvar vc-arch-extra-menu-map + (let ((map (make-sparse-keymap))) + (define-key map [add-tagline] + '(menu-item "Add tagline" vc-arch-add-tagline)) + map)) + +(defun vc-arch-extra-menu () vc-arch-extra-menu-map) + + +;;; Less obvious implementations. + +(defun vc-arch-find-revision (file rev buffer) + (let ((out (make-temp-file "vc-out"))) + (unwind-protect + (progn + (with-temp-buffer + (vc-arch-command (current-buffer) 1 nil "file-diffs" file rev) + (call-process-region (point-min) (point-max) + "patch" nil nil nil "-R" "-o" out file)) + (with-current-buffer buffer + (insert-file-contents out))) + (delete-file out)))) + +(provide 'vc-arch) + +;; arch-tag: a35c7c1c-5237-429d-88ef-3d718fd2e704 +;;; vc-arch.el ends here |