-;;; vc-sccs.el --- support for SCCS version-control
+;;; vc-sccs.el --- support for SCCS version-control -*- lexical-binding:t -*-
-;; Copyright (C) 1992-2011 Free Software Foundation, Inc.
+;; Copyright (C) 1992-2014 Free Software Foundation, Inc.
;; Author: FSF (see vc.el for full credits)
;; Maintainer: Andre Spiegel <spiegel@gnu.org>
;;; Commentary:
-;; Proper function of the SCCS diff commands requires the shellscript vcdiff
-;; to be installed somewhere on Emacs's path for executables.
-;;
-
;;; Code:
(eval-when-compile
;;;
;; ;; Maybe a better solution is to not use "get" but "sccs get".
-;; (defcustom vc-sccs-path
-;; (let ((path ()))
-;; (dolist (dir '("/usr/sccs" "/usr/lib/sccs" "/usr/libexec/sccs"))
-;; (if (file-directory-p dir)
-;; (push dir path)))
-;; path)
-;; "List of extra directories to search for SCCS commands."
-;; :type '(repeat directory)
-;; :group 'vc)
+;; ;; Note for GNU CSSC, you can parse sccs -V to get the libexec path.
+;; (defcustom vc-sccs-path
+;; (prune-directory-list '("/usr/ccs/bin" "/usr/sccs" "/usr/lib/sccs"
+;; "/usr/libexec/sccs"))
+;; "List of extra directories to search for SCCS commands."
+;; :type '(repeat directory)
+;; :group 'vc)
+
+(defgroup vc-sccs nil
+ "VC SCCS backend."
+ :version "24.1"
+ :group 'vc)
(defcustom vc-sccs-register-switches nil
"Switches for registering a file in SCCS.
(string :tag "Argument String")
(repeat :tag "Argument List" :value ("") string))
:version "21.1"
- :group 'vc)
+ :group 'vc-sccs)
(defcustom vc-sccs-diff-switches nil
"String or list of strings specifying switches for SCCS diff under VC.
(string :tag "Argument String")
(repeat :tag "Argument List" :value ("") string))
:version "21.1"
- :group 'vc)
+ :group 'vc-sccs)
(defcustom vc-sccs-header '("%W%")
"Header keywords to be inserted by `vc-insert-headers'."
:type '(repeat string)
:version "24.1" ; no longer consult the obsolete vc-header-alist
- :group 'vc)
+ :group 'vc-sccs)
+;; This needs to be autoloaded because vc-sccs-registered uses it (via
+;; vc-default-registered), and vc-hooks needs to be able to check
+;; for a registered backend without loading every backend.
;;;###autoload
(defcustom vc-sccs-master-templates
(purecopy '("%sSCCS/s.%s" "%ss.%s" vc-sccs-search-project-dir))
(choice string
function)))
:version "21.1"
- :group 'vc)
+ :group 'vc-sccs)
\f
;;;
;;; Properties of the backend
(defun vc-sccs-revision-granularity () 'file)
-(defun vc-sccs-checkout-model (files) 'locking)
+(defun vc-sccs-checkout-model (_files) 'locking)
;;;
;;; State-querying functions
;; The autoload cookie below places vc-sccs-registered directly into
;; loaddefs.el, so that vc-sccs.el does not need to be loaded for
-;; every file that is visited. The definition is repeated below
-;; so that Help and etags can find it.
-
-;;;###autoload (defun vc-sccs-registered(f) (vc-default-registered 'SCCS f))
-(defun vc-sccs-registered (f) (vc-default-registered 'SCCS f))
+;; every file that is visited.
+;;;###autoload
+(progn
+(defun vc-sccs-registered (f) (vc-default-registered 'SCCS f)))
(defun vc-sccs-state (file)
"SCCS-specific function to compute the version control state."
(vc-sccs-state file))))
(vc-sccs-state file)))
+(autoload 'vc-expand-dirs "vc")
+
(defun vc-sccs-dir-status (dir update-function)
;; FIXME: this function should be rewritten, using `vc-expand-dirs'
;; is not TRTD because it returns files from multiple backends.
(vc-insert-file (vc-name file) "^\001e\n\001[^s]")
(vc-parse-buffer "^\001d D \\([^ ]+\\)" 1)))
+;; Cf vc-sccs-find-revision.
+(defun vc-sccs-write-revision (file outfile &optional rev)
+ "Write the SCCS version of input file FILE to output file OUTFILE.
+Optional string REV is a revision."
+ (with-temp-buffer
+ (apply 'vc-sccs-do-command t 0 "get" (vc-name file)
+ (append '("-s" "-p" "-k") ; -k: no keyword expansion
+ (if rev (list (concat "-r" rev)))))
+ (write-region nil nil outfile nil 'silent)))
+
(defun vc-sccs-workfile-unchanged-p (file)
"SCCS-specific implementation of `vc-workfile-unchanged-p'."
- (zerop (apply 'vc-do-command "*vc*" 1 "vcdiff" (vc-name file)
- (list "--brief" "-q"
- (concat "-r" (vc-working-revision file))))))
+ (let ((tempfile (make-temp-file "vc-sccs")))
+ (unwind-protect
+ (progn
+ (vc-sccs-write-revision file tempfile (vc-working-revision file))
+ (zerop (vc-do-command "*vc*" 1 "cmp" file tempfile)))
+ (delete-file tempfile))))
\f
;;;
;; SCCS is totally file-oriented, so all we have to do is make the directory
(make-directory "SCCS"))
+(autoload 'vc-switches "vc")
+
(defun vc-sccs-register (files &optional rev comment)
"Register FILES into the SCCS version-control system.
REV is the optional revision number for the file. COMMENT can be used
(vc-name file) (concat "-r" discard))
(vc-sccs-do-command nil 0 "get" (vc-name file) nil))))
-(defun vc-sccs-revert (file &optional contents-done)
+(defun vc-sccs-revert (file &optional _contents-done)
"Revert FILE to the version it was based on. If FILE is a directory,
revert all subfiles."
(if (file-directory-p file)
;;; History functions
;;;
-(defun vc-sccs-print-log (files buffer &optional shortlog start-revision-ignored limit)
- "Get change log associated with FILES."
+(defun vc-sccs-print-log (files buffer &optional _shortlog _start-revision-ignored limit)
+ "Print commit log associated with FILES into specified BUFFER.
+Remaining arguments are ignored."
(setq files (vc-expand-dirs files))
(vc-sccs-do-command buffer 0 "prs" (mapcar 'vc-name files))
(when limit 'limit-unsupported))
+(autoload 'vc-setup-buffer "vc-dispatcher")
+(autoload 'vc-delistify "vc-dispatcher")
+
+(defvar w32-quote-process-args)
+
+;; FIXME use sccsdiff if present?
(defun vc-sccs-diff (files &optional oldvers newvers buffer)
"Get a difference report using SCCS between two filesets."
(setq files (vc-expand-dirs files))
(setq oldvers (vc-sccs-lookup-triple (car files) oldvers))
(setq newvers (vc-sccs-lookup-triple (car files) newvers))
- (apply 'vc-do-command (or buffer "*vc-diff*")
- 1 "vcdiff" (mapcar 'vc-name (vc-expand-dirs files))
- (append (list "-q"
- (and oldvers (concat "-r" oldvers))
- (and newvers (concat "-r" newvers)))
- (vc-switches 'SCCS 'diff))))
+ (or buffer (setq buffer "*vc-diff*"))
+ ;; We have to reimplement pieces of vc-do-command, because
+ ;; we want to run multiple external commands, and only do the setup
+ ;; and exit pieces once.
+ (save-current-buffer
+ (unless (or (eq buffer t)
+ (and (stringp buffer) (string= (buffer-name) buffer))
+ (eq buffer (current-buffer)))
+ (vc-setup-buffer buffer))
+ (let* ((fake-flags (append (vc-switches 'SCCS 'diff)
+ (if oldvers (list (concat " -r" oldvers)))
+ (if newvers (list (concat " -r" newvers)))))
+ (fake-command
+ (format "diff%s %s"
+ (if fake-flags
+ (concat " " (mapconcat 'identity fake-flags " "))
+ "")
+ (vc-delistify files)))
+ (status 0)
+ (oldproc (get-buffer-process (current-buffer))))
+ (when vc-command-messages
+ (message "Running %s in foreground..." fake-command))
+ (if oldproc (delete-process oldproc))
+ (dolist (file files)
+ (let ((oldfile (make-temp-file "vc-sccs"))
+ newfile)
+ (unwind-protect
+ (progn
+ (vc-sccs-write-revision file oldfile oldvers)
+ (if newvers
+ (vc-sccs-write-revision file (setq newfile
+ (make-temp-file "vc-sccs"))
+ newvers))
+ (let* ((inhibit-read-only t)
+ (buffer-undo-list t)
+ (process-environment
+ (cons "LC_MESSAGES=C" process-environment))
+ (w32-quote-process-args t)
+ (this-status
+ (apply 'process-file "diff" nil t nil
+ (append (vc-switches 'SCCS 'diff)
+ (list oldfile
+ (or newfile
+ (file-relative-name file)))))))
+ (or (integerp this-status) (setq status 'error))
+ (and (integerp status)
+ (> this-status status)
+ (setq status this-status))))
+ (delete-file oldfile)
+ (if newfile (delete-file newfile)))))
+ (when (or (not (integerp status)) (> status 1))
+ (unless (eq ?\s (aref (buffer-name (current-buffer)) 0))
+ (pop-to-buffer (current-buffer))
+ (goto-char (point-min))
+ (shrink-window-if-larger-than-buffer))
+ (error "Running %s...FAILED (%s)" fake-command
+ (if (integerp status) (format "status %d" status) status)))
+ (when vc-command-messages
+ (message "Running %s...OK = %d" fake-command status))
+ ;; Should we pretend we ran sccsdiff instead?
+ ;; This might not actually be a valid diff command.
+ (run-hook-with-args 'vc-post-command-functions "diff" files fake-flags)
+ status)))
\f
;;;
;;; our own set of name-to-revision mappings.
;;;
-(defun vc-sccs-create-tag (backend dir name branchp)
+(autoload 'vc-tag-precondition "vc")
+(declare-function vc-file-tree-walk "vc" (dirname func &rest args))
+
+(defun vc-sccs-create-tag (dir name branchp)
(when branchp
- (error "SCCS backend %s does not support module branches" backend))
+ (error "SCCS backend does not support module branches"))
(let ((result (vc-tag-precondition dir)))
(if (stringp result)
(error "File %s is not up-to-date" result)
(goto-char (point-min))
(re-search-forward "%[A-Z]%" nil t)))
+(autoload 'vc-rename-master "vc")
+
(defun vc-sccs-rename-file (old new)
;; Move the master file (using vc-rcs-master-templates).
(vc-rename-master (vc-name old) new vc-sccs-master-templates)
;; a (autoload 'vc-sccs-search-project-dir "vc-sccs") which would not
;; help us avoid loading vc-sccs.
;;;###autoload
-(progn (defun vc-sccs-search-project-dir (dirname basename)
+(progn (defun vc-sccs-search-project-dir (_dirname basename)
"Return the name of a master file in the SCCS project directory.
Does not check whether the file exists but returns nil if it does not
find any project directory."
HCoop / bpt / emacs.git / blobdiff