mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-11 09:20:51 +00:00
099bd78a96
* vc.el: (toplevel): Don't require `dired' at run-time. (vc-dired-resynch-file): Remove autoload cookie. 2000-09-05 Andre Spiegel <spiegel@gnu.org> * vc.el: Made several backend functions optional. (vc-default-responsible-p): New function. (vc-merge): Use RET for first version to trigger merge-news, not prefix arg. (vc-annotate): Handle backends that do not support annotation. (vc-default-merge-news): Removed. The existence of a merge-news implementation is now checked on caller sites. * vc-hooks.el (vc-default-mode-line-string): Removed CVS special case. * vc-cvs.el (vc-cvs-mode-line-string): New function, handles the special case that has been removed from the default in vc-hooks.el. 2000-09-05 Stefan Monnier <monnier@cs.yale.edu> * vc.el (vc-log-edit): Properly handle the case where FILE is nil. 2000-09-05 Andre Spiegel <spiegel@gnu.org> * vc-hooks.el: Require vc during compilation. (vc-file-setprop): Use `vc-touched-properties' if bound by the new macro `with-vc-properties' in vc.el. (vc-file-getprop): Doc fix. (vc-after-save): Call `vc-dired-resynch-file' only if vc is loaded. * vc.el: Require dired-aux during compilation. (vc-name-assoc-file): Moved to vc-sccs.el. (with-vc-properties): New macro. (vc-checkin, vc-checkout, vc-revert, vc-cancel-version, vc-finish-steal): Use it. (vc-cancel-version): Moved RCS-specific code to vc-rcs.el. The call to the backend-specific function is now supposed to do the checkout, too. (vc-log-edit): Handle FILE being nil and added a FIXME for log-edit. * vc-cvs.el (vc-cvs-checkin, vc-cvs-checkout): Don't bother to set file properties; that gets done in the generic code now. * vc-rcs.el (vc-rcs-uncheck): Renamed to `vc-rcs-cancel-version'. Changed parameter list, added code from vc.el that does the checkout, possibly with a double-take. * vc-sccs.el (vc-sccs-name-assoc-file): Moved here from vc.el. (vc-sccs-add-triple, vc-sccs-rename-file, vc-sccs-lookup-triple): Use the above under the new name. (vc-sccs-uncheck): Renamed to `vc-sccs-cancel-version'. Changed parameter list, added checkout command. (vc-sccs-checkin, vc-sccs-checkout): Don't bother to set file properties; that gets done in the generic code now. 2000-09-05 Stefan Monnier <monnier@cs.yale.edu> * vc.el: Docstring fixes (courtesy of checkdoc). 2000-09-05 Stefan Monnier <monnier@cs.yale.edu> * vc.el (vc-checkout-writable-buffer-hook) (vc-checkout-writable-buffer): Remove. (vc-start-entry): Always call vc-log-edit, never vc-log-mode. (vc-log-mode): Make it into a clean derived major mode. (vc-log-edit): Mark buffer unmodified (as vc-log-mode did) and use vc-log-mode if log-edit is not available. (vc-dired-mode-map): Don't set-keymap-parent yet. (vc-dired-mode): Do set-keymap-parent here. (vc-dired-buffers-for-dir): Nop if dired is not loaded.
678 lines
26 KiB
EmacsLisp
678 lines
26 KiB
EmacsLisp
;;; vc-cvs.el --- non-resident support for CVS version-control
|
||
|
||
;; Copyright (C) 1995,98,99,2000 Free Software Foundation, Inc.
|
||
|
||
;; Author: FSF (see vc.el for full credits)
|
||
;; Maintainer: Andre Spiegel <spiegel@gnu.org>
|
||
|
||
;; $Id: vc-cvs.el,v 1.1 2000/09/04 19:48:04 gerd Exp $
|
||
|
||
;; 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 2, 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; see the file COPYING. If not, write to the
|
||
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||
;; Boston, MA 02111-1307, USA.
|
||
|
||
;;; Commentary:
|
||
|
||
;;; Code:
|
||
|
||
(defcustom vc-cvs-register-switches nil
|
||
"*Extra switches for registering a file into CVS.
|
||
A string or list of strings passed to the checkin program by
|
||
\\[vc-register]."
|
||
:type '(choice (const :tag "None" nil)
|
||
(string :tag "Argument String")
|
||
(repeat :tag "Argument List"
|
||
:value ("")
|
||
string))
|
||
:group 'vc)
|
||
|
||
(defcustom vc-cvs-header (or (cdr (assoc 'CVS vc-header-alist)) '("\$Id\$"))
|
||
"*Header keywords to be inserted by `vc-insert-headers'."
|
||
:type 'string
|
||
:group 'vc)
|
||
|
||
(defcustom vc-cvs-use-edit t
|
||
"*Non-nil means to use `cvs edit' to \"check out\" a file.
|
||
This is only meaningful if you don't use the implicit checkout model
|
||
\(i.e. if you have $CVSREAD set)."
|
||
:type 'boolean
|
||
:group 'vc)
|
||
|
||
(defcustom vc-cvs-stay-local t
|
||
"*Non-nil means that for remote CVS repositories, VC will
|
||
use local operations whenever possible, avoiding slow queries
|
||
over the network. Turning this option on will instruct VC to use only
|
||
heuristics and past information to determine the current status of a
|
||
file. The value can also be a regular expression to match against the
|
||
host name of a repository; then VC only stays local for hosts that match
|
||
it."
|
||
:type '(choice (const :tag "Always stay local" t)
|
||
(string :tag "Host regexp")
|
||
(const :tag "Don't stay local" nil))
|
||
:group 'vc)
|
||
|
||
;;;###autoload (defun vc-cvs-registered (f)
|
||
;;;###autoload (when (file-readable-p (expand-file-name
|
||
;;;###autoload "CVS/Entries" (file-name-directory f)))
|
||
;;;###autoload (require 'vc-cvs)
|
||
;;;###autoload (vc-cvs-registered f)))
|
||
|
||
(defun vc-cvs-registered (file)
|
||
"Check if FILE is CVS registered."
|
||
(let ((dirname (or (file-name-directory file) ""))
|
||
(basename (file-name-nondirectory file))
|
||
;; make sure that the file name is searched case-sensitively
|
||
(case-fold-search nil))
|
||
(if (file-readable-p (expand-file-name "CVS/Entries" dirname))
|
||
(with-temp-buffer
|
||
(vc-insert-file (expand-file-name "CVS/Entries" dirname))
|
||
(goto-char (point-min))
|
||
(cond
|
||
((re-search-forward
|
||
(concat "^/" (regexp-quote basename) "/") nil t)
|
||
(beginning-of-line)
|
||
(vc-cvs-parse-entry file)
|
||
t)
|
||
(t nil)))
|
||
nil)))
|
||
|
||
(defun vc-cvs-stay-local-p (file)
|
||
"Return non-nil if VC should stay local when handling FILE."
|
||
(if vc-cvs-stay-local
|
||
(let* ((dirname (if (file-directory-p file)
|
||
(directory-file-name file)
|
||
(file-name-directory file)))
|
||
(prop
|
||
(or (vc-file-getprop dirname 'vc-cvs-stay-local-p)
|
||
(let ((rootname (expand-file-name "CVS/Root" dirname)))
|
||
(vc-file-setprop
|
||
dirname 'vc-cvs-stay-local-p
|
||
(when (file-readable-p rootname)
|
||
(with-temp-buffer
|
||
(vc-insert-file rootname)
|
||
(goto-char (point-min))
|
||
(if (looking-at "\\([^:]*\\):")
|
||
(if (not (stringp vc-cvs-stay-local))
|
||
'yes
|
||
(let ((hostname (match-string 1)))
|
||
(if (string-match vc-cvs-stay-local hostname)
|
||
'yes
|
||
'no)))
|
||
'no))))))))
|
||
(if (eq prop 'yes) t nil))))
|
||
|
||
(defun vc-cvs-workfile-version (file)
|
||
"CVS-specific version of `vc-workfile-version'."
|
||
;; There is no need to consult RCS headers under CVS, because we
|
||
;; get the workfile version for free when we recognize that a file
|
||
;; is registered in CVS.
|
||
(vc-cvs-registered file)
|
||
(vc-file-getprop file 'vc-workfile-version))
|
||
|
||
(defun vc-cvs-checkout-model (file)
|
||
"CVS-specific version of `vc-checkout-model'."
|
||
(if (or (getenv "CVSREAD")
|
||
;; If the file is not writable (despite CVSREAD being
|
||
;; undefined), this is probably because the file is being
|
||
;; "watched" by other developers.
|
||
;; (If vc-mistrust-permissions was t, we actually shouldn't
|
||
;; trust this, but there is no other way to learn this from CVS
|
||
;; at the moment (version 1.9).)
|
||
(string-match "r-..-..-." (nth 8 (file-attributes file))))
|
||
'announce
|
||
'implicit))
|
||
|
||
;; VC Dired functions
|
||
|
||
(defun vc-cvs-dired-state-info (file)
|
||
"CVS-specific version of `vc-dired-state-info'."
|
||
(let* ((cvs-state (vc-state file))
|
||
(state (cond ((eq cvs-state 'edited) "modified")
|
||
((eq cvs-state 'needs-patch) "patch")
|
||
((eq cvs-state 'needs-merge) "merge")
|
||
;; FIXME: those two states cannot occur right now
|
||
((eq cvs-state 'unlocked-changes) "conflict")
|
||
((eq cvs-state 'locally-added) "added")
|
||
)))
|
||
(if state (concat "(" state ")"))))
|
||
|
||
(defun vc-cvs-parse-status (&optional full)
|
||
"Parse output of \"cvs status\" command in the current buffer.
|
||
Set file properties accordingly. Unless FULL is t, parse only
|
||
essential information."
|
||
(let (file status)
|
||
(goto-char (point-min))
|
||
(if (re-search-forward "^File: " nil t)
|
||
(cond
|
||
((looking-at "no file") nil)
|
||
((re-search-forward "\\=\\([^ \t]+\\)" nil t)
|
||
(setq file (expand-file-name (match-string 1)))
|
||
(vc-file-setprop file 'vc-backend 'CVS)
|
||
(if (not (re-search-forward "\\=[ \t]+Status: \\(.*\\)" nil t))
|
||
(setq status "Unknown")
|
||
(setq status (match-string 1)))
|
||
(if (and full
|
||
(re-search-forward
|
||
"\\(RCS Version\\|RCS Revision\\|Repository revision\\):\
|
||
\[\t ]+\\([0-9.]+\\)"
|
||
nil t))
|
||
(vc-file-setprop file 'vc-latest-version (match-string 2)))
|
||
(cond
|
||
((string-match "Up-to-date" status)
|
||
(vc-file-setprop file 'vc-checkout-time
|
||
(nth 5 (file-attributes file)))
|
||
'up-to-date)
|
||
((string-match "Locally Modified" status) 'edited)
|
||
((string-match "Needs Merge" status) 'needs-merge)
|
||
((string-match "Needs \\(Checkout\\|Patch\\)" status) 'needs-patch)
|
||
(t 'edited)))))))
|
||
|
||
(defun vc-cvs-state (file)
|
||
"CVS-specific version of `vc-state'."
|
||
(if (vc-cvs-stay-local-p file)
|
||
(let ((state (vc-file-getprop file 'vc-state)))
|
||
;; If we should stay local, use the heuristic but only if
|
||
;; we don't have a more precise state already available.
|
||
(if (memq state '(up-to-date edited))
|
||
(vc-cvs-state-heuristic file)
|
||
state))
|
||
(with-temp-buffer
|
||
(cd (file-name-directory file))
|
||
(vc-do-command t 0 "cvs" file "status")
|
||
(vc-cvs-parse-status t))))
|
||
|
||
(defun vc-cvs-state-heuristic (file)
|
||
"CVS-specific state heuristic."
|
||
;; If the file has not changed since checkout, consider it `up-to-date'.
|
||
;; Otherwise consider it `edited'.
|
||
(let ((checkout-time (vc-file-getprop file 'vc-checkout-time))
|
||
(lastmod (nth 5 (file-attributes file))))
|
||
(if (equal checkout-time lastmod)
|
||
'up-to-date
|
||
'edited)))
|
||
|
||
(defun vc-cvs-mode-line-string (file)
|
||
"Return string for placement into the modeline for FILE.
|
||
Compared to the default implementation, this function handles the
|
||
special case of a CVS file that is added but not yet comitted."
|
||
(let ((state (vc-state file))
|
||
(rev (vc-workfile-version file)))
|
||
(cond ((string= rev "0")
|
||
;; A file that is added but not yet comitted.
|
||
"CVS @@")
|
||
((or (eq state 'up-to-date)
|
||
(eq state 'needs-patch))
|
||
(concat "CVS-" rev))
|
||
((stringp state)
|
||
(concat "CVS:" state ":" rev))
|
||
(t
|
||
;; Not just for the 'edited state, but also a fallback
|
||
;; for all other states. Think about different symbols
|
||
;; for 'needs-patch and 'needs-merge.
|
||
(concat "CVS:" rev)))))
|
||
|
||
(defun vc-cvs-dir-state (dir)
|
||
"Find the CVS state of all files in DIR."
|
||
(if (vc-cvs-stay-local-p dir)
|
||
(vc-cvs-dir-state-heuristic dir)
|
||
(let ((default-directory dir))
|
||
;; Don't specify DIR in this command, the default-directory is
|
||
;; enough. Otherwise it might fail with remote repositories.
|
||
(with-temp-buffer
|
||
(vc-do-command t 0 "cvs" nil "status" "-l")
|
||
(goto-char (point-min))
|
||
(while (re-search-forward "^=+\n\\([^=\n].*\n\\|\n\\)+" nil t)
|
||
(narrow-to-region (match-beginning 0) (match-end 0))
|
||
(vc-cvs-parse-status)
|
||
(goto-char (point-max))
|
||
(widen))))))
|
||
|
||
(defun vc-cvs-dir-state-heuristic (dir)
|
||
"Find the CVS state of all files in DIR, using only local information."
|
||
(with-temp-buffer
|
||
(vc-insert-file (expand-file-name "CVS/Entries" dir))
|
||
(goto-char (point-min))
|
||
(while (not (eobp))
|
||
(when (looking-at "/\\([^/]*\\)/")
|
||
(let ((file (expand-file-name (match-string 1) dir)))
|
||
(unless (vc-file-getprop file 'vc-state)
|
||
(vc-cvs-parse-entry file t))))
|
||
(forward-line 1))))
|
||
|
||
(defun vc-cvs-parse-entry (file &optional set-state)
|
||
"Parse a line from CVS/Entries, compare modification time to that of
|
||
the FILE, set file properties accordingly. However, vc-state is set only
|
||
if optional arg SET-STATE is non-nil."
|
||
(cond
|
||
;; entry for a "locally added" file (not yet committed)
|
||
((looking-at "/[^/]+/0/")
|
||
(vc-file-setprop file 'vc-checkout-time 0)
|
||
(vc-file-setprop file 'vc-workfile-version "0")
|
||
(if set-state (vc-file-setprop file 'vc-state 'edited)))
|
||
;; normal entry
|
||
((looking-at
|
||
(concat "/[^/]+"
|
||
;; revision
|
||
"/\\([^/]*\\)"
|
||
;; timestamp
|
||
"/[A-Z][a-z][a-z]" ;; week day (irrelevant)
|
||
" \\([A-Z][a-z][a-z]\\)" ;; month name
|
||
" *\\([0-9]*\\)" ;; day of month
|
||
" \\([0-9]*\\):\\([0-9]*\\):\\([0-9]*\\)" ;; hms
|
||
" \\([0-9]*\\)" ;; year
|
||
;; optional conflict field
|
||
"\\(+[^/]*\\)?/"))
|
||
(vc-file-setprop file 'vc-workfile-version (match-string 1))
|
||
;; compare checkout time and modification time
|
||
(let ((second (string-to-number (match-string 6)))
|
||
(minute (string-to-number (match-string 5)))
|
||
(hour (string-to-number (match-string 4)))
|
||
(day (string-to-number (match-string 3)))
|
||
(year (string-to-number (match-string 7)))
|
||
(month (/ (string-match
|
||
(match-string 2)
|
||
"xxxJanFebMarAprMayJunJulAugSepOctNovDec")
|
||
3))
|
||
(mtime (nth 5 (file-attributes file))))
|
||
(cond ((equal mtime
|
||
(encode-time second minute hour day month year 0))
|
||
(vc-file-setprop file 'vc-checkout-time mtime)
|
||
(if set-state (vc-file-setprop file 'vc-state 'up-to-date)))
|
||
(t
|
||
(vc-file-setprop file 'vc-checkout-time 0)
|
||
(if set-state (vc-file-setprop file 'vc-state 'edited))))))
|
||
;; entry with arbitrary text as timestamp
|
||
;; (this means we should consider it modified)
|
||
((looking-at
|
||
(concat "/[^/]+"
|
||
;; revision
|
||
"/\\([^/]*\\)"
|
||
;; timestamp (arbitrary text)
|
||
"/[^/]*"
|
||
;; optional conflict field
|
||
"\\(+[^/]*\\)?/"))
|
||
(vc-file-setprop file 'vc-workfile-version (match-string 1))
|
||
(vc-file-setprop file 'vc-checkout-time 0)
|
||
(if set-state (vc-file-setprop file 'vc-state 'edited)))))
|
||
|
||
(defun vc-cvs-print-log (file)
|
||
"Get change log associated with FILE."
|
||
(vc-do-command t 'async "cvs" file "log"))
|
||
|
||
(defun vc-cvs-show-log-entry (version)
|
||
(when (re-search-forward
|
||
;; also match some context, for safety
|
||
(concat "----\nrevision " version
|
||
"\\(\tlocked by:.*\n\\|\n\\)date: ") nil t)
|
||
;; set the display window so that
|
||
;; the whole log entry is displayed
|
||
(let (start end lines)
|
||
(beginning-of-line) (forward-line -1) (setq start (point))
|
||
(if (not (re-search-forward "^----*\nrevision" nil t))
|
||
(setq end (point-max))
|
||
(beginning-of-line) (forward-line -1) (setq end (point)))
|
||
(setq lines (count-lines start end))
|
||
(cond
|
||
;; if the global information and this log entry fit
|
||
;; into the window, display from the beginning
|
||
((< (count-lines (point-min) end) (window-height))
|
||
(goto-char (point-min))
|
||
(recenter 0)
|
||
(goto-char start))
|
||
;; if the whole entry fits into the window,
|
||
;; display it centered
|
||
((< (1+ lines) (window-height))
|
||
(goto-char start)
|
||
(recenter (1- (- (/ (window-height) 2) (/ lines 2)))))
|
||
;; otherwise (the entry is too large for the window),
|
||
;; display from the start
|
||
(t
|
||
(goto-char start)
|
||
(recenter 0))))))
|
||
|
||
(defun vc-cvs-create-snapshot (dir name branchp)
|
||
"Assign to DIR's current version a given NAME.
|
||
If BRANCHP is non-nil, the name is created as a branch (and the current
|
||
workspace is immediately moved to that new branch)."
|
||
(vc-do-command nil 0 "cvs" dir "tag" "-c" (if branchp "-b") name)
|
||
(when branchp (vc-do-command nil 0 "cvs" dir "update" "-r" name)))
|
||
|
||
(defun vc-cvs-retrieve-snapshot (dir name update)
|
||
"Retrieve a snapshot at and below DIR.
|
||
NAME is the name of the snapshot; if it is empty, do a `cvs update'.
|
||
If UPDATE is non-nil, then update (resynch) any affected buffers."
|
||
(with-current-buffer (get-buffer-create "*vc*")
|
||
(let ((default-directory dir))
|
||
(erase-buffer)
|
||
(if (or (not name) (string= name ""))
|
||
(vc-do-command t 0 "cvs" nil "update")
|
||
(vc-do-command t 0 "cvs" nil "update" "-r" name))
|
||
(when update
|
||
(goto-char (point-min))
|
||
(while (not (eobp))
|
||
(if (looking-at "\\([CMUP]\\) \\(.*\\)")
|
||
(let* ((file (expand-file-name (match-string 2) dir))
|
||
(state (match-string 1))
|
||
(buffer (find-buffer-visiting file)))
|
||
(when buffer
|
||
(cond
|
||
((or (string= state "U")
|
||
(string= state "P"))
|
||
(vc-file-setprop file 'vc-state 'up-to-date)
|
||
(vc-file-setprop file 'vc-workfile-version nil)
|
||
(vc-file-setprop file 'vc-checkout-time
|
||
(nth 5 (file-attributes file))))
|
||
((or (string= state "M")
|
||
(string= state "C"))
|
||
(vc-file-setprop file 'vc-state 'edited)
|
||
(vc-file-setprop file 'vc-workfile-version nil)
|
||
(vc-file-setprop file 'vc-checkout-time 0)))
|
||
(vc-resynch-buffer file t t))))
|
||
(forward-line 1))))))
|
||
|
||
(defun vc-cvs-merge (file first-version &optional second-version)
|
||
"Merge changes into current working copy of FILE.
|
||
The changes are between FIRST-VERSION and SECOND-VERSION."
|
||
(vc-do-command nil 0 "cvs" file
|
||
"update" "-kk"
|
||
(concat "-j" first-version)
|
||
(concat "-j" second-version))
|
||
(vc-file-setprop file 'vc-state 'edited)
|
||
(save-excursion
|
||
(set-buffer (get-buffer "*vc*"))
|
||
(goto-char (point-min))
|
||
(if (re-search-forward "conflicts during merge" nil t)
|
||
1 ; signal error
|
||
0))) ; signal success
|
||
|
||
(defun vc-cvs-merge-news (file)
|
||
"Merge in any new changes made to FILE."
|
||
(message "Merging changes into %s..." file)
|
||
(save-excursion
|
||
;; (vc-file-setprop file 'vc-workfile-version nil)
|
||
(vc-file-setprop file 'vc-checkout-time 0)
|
||
(vc-do-command nil 0 "cvs" file "update")
|
||
;; Analyze the merge result reported by CVS, and set
|
||
;; file properties accordingly.
|
||
(set-buffer (get-buffer "*vc*"))
|
||
(goto-char (point-min))
|
||
;; get new workfile version
|
||
(if (re-search-forward (concat "^Merging differences between "
|
||
"[01234567890.]* and "
|
||
"\\([01234567890.]*\\) into")
|
||
nil t)
|
||
(vc-file-setprop file 'vc-workfile-version (match-string 1))
|
||
(vc-file-setprop file 'vc-workfile-version nil))
|
||
;; get file status
|
||
(prog1
|
||
(if (re-search-forward
|
||
(concat "^\\([CMUP] \\)?"
|
||
(regexp-quote (file-name-nondirectory file))
|
||
"\\( already contains the differences between \\)?")
|
||
nil t)
|
||
(cond
|
||
;; Merge successful, we are in sync with repository now
|
||
((or (match-string 2)
|
||
(string= (match-string 1) "U ")
|
||
(string= (match-string 1) "P "))
|
||
(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) "M ")
|
||
(vc-file-setprop file 'vc-state 'edited)
|
||
0);; indicate success to the caller
|
||
;; Conflicts detected!
|
||
(t
|
||
(vc-file-setprop file 'vc-state 'edited)
|
||
1);; signal the error to the caller
|
||
)
|
||
(pop-to-buffer "*vc*")
|
||
(error "Couldn't analyze cvs update result"))
|
||
(message "Merging changes into %s...done" file))))
|
||
|
||
(defun vc-cvs-check-headers ()
|
||
"Check if the current file has any headers in it."
|
||
(save-excursion
|
||
(goto-char (point-min))
|
||
(re-search-forward "\\$[A-Za-z\300-\326\330-\366\370-\377]+\
|
||
\\(: [\t -#%-\176\240-\377]*\\)?\\$" nil t)))
|
||
|
||
(defun vc-cvs-steal (file &optional rev)
|
||
"Steal the lock on the current workfile for FILE and revision REV.
|
||
Inappropriate for CVS"
|
||
(error "You cannot steal a CVS lock; there are no CVS locks to steal"))
|
||
|
||
;; vc-check `not reached' for CVS.
|
||
|
||
(defun vc-cvs-revert (file)
|
||
"Revert FILE to the version it was based on."
|
||
;; Check out via standard output (caused by the final argument
|
||
;; FILE below), so that no sticky tag is set.
|
||
(vc-cvs-checkout file nil (vc-workfile-version file) file)
|
||
;; If "cvs edit" was used to make the file writable,
|
||
;; call "cvs unedit" now to undo that.
|
||
(if (not (eq (vc-cvs-checkout-model file) 'implicit))
|
||
(vc-do-command nil 0 "cvs" file "unedit")))
|
||
|
||
(defun vc-cvs-diff (file &optional oldvers newvers)
|
||
"Get a difference report using CVS between two versions of FILE."
|
||
(let (options status
|
||
(diff-switches-list (if (listp diff-switches)
|
||
diff-switches
|
||
(list diff-switches))))
|
||
(if (string= (vc-workfile-version file) "0")
|
||
;; This file is added but not yet committed; there is no master file.
|
||
(if (or oldvers newvers)
|
||
(error "No revisions of %s exist" file)
|
||
;; we regard this as "changed".
|
||
;; diff it against /dev/null.
|
||
(apply 'vc-do-command t
|
||
'async "diff" file
|
||
(append diff-switches-list '("/dev/null"))))
|
||
(apply 'vc-do-command t
|
||
'async "cvs" file "diff"
|
||
(and oldvers (concat "-r" oldvers))
|
||
(and newvers (concat "-r" newvers))
|
||
diff-switches-list))
|
||
;; We can't know yet, so we assume there'll be a difference
|
||
1))
|
||
|
||
(defun vc-cvs-latest-on-branch-p (file)
|
||
"Return t iff the current workfile version of FILE is the latest on
|
||
its branch."
|
||
;; Since this is only used as a sanity check for vc-cancel-version,
|
||
;; and that is not supported under CVS at all, we can safely return t here.
|
||
;; TODO: Think of getting rid of this altogether.
|
||
t)
|
||
|
||
(defun vc-cvs-checkin (file rev comment)
|
||
"CVS-specific version of `vc-backend-checkin'."
|
||
(let ((switches (if (stringp vc-checkin-switches)
|
||
(list vc-checkin-switches)
|
||
vc-checkin-switches))
|
||
status)
|
||
;; 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 nil 1 "cvs" file
|
||
"ci" "-m" "intermediate"
|
||
switches))
|
||
(setq status (apply 'vc-do-command nil 1 "cvs" file
|
||
"ci" (if rev (concat "-r" rev))
|
||
(concat "-m" comment)
|
||
switches))
|
||
;; determine and store the new workfile version
|
||
(set-buffer "*vc*")
|
||
(goto-char (point-min))
|
||
;; Check checkin problem. We could check `status' as well.
|
||
(when (re-search-forward "Up-to-date check failed" nil t)
|
||
(vc-file-setprop file 'vc-state 'needs-merge)
|
||
(error (substitute-command-keys
|
||
"Up-to-date check failed: type \\[vc-next-action] to merge in changes")))
|
||
;; Update file properties
|
||
(vc-file-setprop
|
||
file 'vc-workfile-version
|
||
(vc-parse-buffer "^\\(new\\|initial\\) revision: \\([0-9.]+\\)" 2))
|
||
;; Forget the checkout model of the file, because we might have
|
||
;; guessed wrong when we found the file. After commit, we can
|
||
;; tell it from the permissions of the file (see
|
||
;; vc-cvs-checkout-model).
|
||
(vc-file-setprop file 'vc-checkout-model nil)
|
||
;; if this was an explicit check-in, remove the sticky tag
|
||
(if rev (vc-do-command t 0 "cvs" file "update" "-A"))))
|
||
|
||
(defun vc-cvs-responsible-p (file)
|
||
"Return non-nil if CVS thinks it is responsible for FILE."
|
||
(file-directory-p (expand-file-name "CVS"
|
||
(if (file-directory-p file)
|
||
file
|
||
(file-name-directory file)))))
|
||
|
||
(defun vc-cvs-could-register (file)
|
||
"Return non-nil if FILE could be registered in CVS.
|
||
This is only possible if CVS is responsible for FILE's directory."
|
||
(vc-cvs-responsible-p file))
|
||
|
||
(defun vc-cvs-register (file &optional rev comment)
|
||
"Register FILE into the CVS version-control system.
|
||
COMMENT can be used to provide an initial description of FILE.
|
||
|
||
`vc-register-switches' and `vc-cvs-register-switches' are passed to
|
||
the CVS command (in that order)."
|
||
(vc-file-clearprops file)
|
||
(let ((switches (list
|
||
(if (stringp vc-register-switches)
|
||
(list vc-register-switches)
|
||
vc-register-switches)
|
||
(if (stringp vc-cvs-register-switches)
|
||
(list vc-cvs-register-switches)
|
||
vc-cvs-register-switches))))
|
||
|
||
(apply 'vc-do-command nil 0 "cvs" file
|
||
"add"
|
||
(and comment (string-match "[^\t\n ]" comment)
|
||
(concat "-m" comment))
|
||
switches)))
|
||
|
||
(defun vc-cvs-checkout (file &optional writable rev workfile)
|
||
"Retrieve a revision of FILE into a WORKFILE.
|
||
WRITABLE non-nil means that the file should be writable.
|
||
REV is the revision to check out into WORKFILE."
|
||
(let ((filename (or workfile file))
|
||
(file-buffer (get-file-buffer file))
|
||
switches)
|
||
(message "Checking out %s..." filename)
|
||
(save-excursion
|
||
;; Change buffers to get local value of vc-checkout-switches.
|
||
(if file-buffer (set-buffer file-buffer))
|
||
(setq switches (if (stringp vc-checkout-switches)
|
||
(list vc-checkout-switches)
|
||
vc-checkout-switches))
|
||
;; Save this buffer's default-directory
|
||
;; and use save-excursion to make sure it is restored
|
||
;; in the same buffer it was saved in.
|
||
(let ((default-directory default-directory))
|
||
(save-excursion
|
||
;; Adjust the default-directory so that the check-out creates
|
||
;; the file in the right place.
|
||
(setq default-directory (file-name-directory filename))
|
||
(if workfile
|
||
(let ((failed t))
|
||
(unwind-protect
|
||
(progn
|
||
(let ((coding-system-for-read 'no-conversion)
|
||
(coding-system-for-write 'no-conversion))
|
||
(with-temp-file filename
|
||
(apply 'vc-do-command
|
||
(current-buffer) 0 "cvs" file
|
||
"-Q" ; suppress diagnostic output
|
||
"update"
|
||
(and rev (not (string= rev ""))
|
||
(concat "-r" rev))
|
||
"-p"
|
||
switches)))
|
||
(setq failed nil))
|
||
(and failed (file-exists-p filename) (delete-file filename))))
|
||
(if (and (file-exists-p file) (not rev))
|
||
;; If no revision was specified, just make the file writable
|
||
;; if necessary (using `cvs-edit' if requested).
|
||
(and writable (not (eq (vc-cvs-checkout-model file) 'implicit))
|
||
(if vc-cvs-use-edit
|
||
(vc-do-command nil 0 "cvs" file "edit")
|
||
(set-file-modes file (logior (file-modes file) 128))
|
||
(if file-buffer (toggle-read-only -1))))
|
||
;; Check out a particular version (or recreate the file).
|
||
(vc-file-setprop file 'vc-workfile-version nil)
|
||
(apply 'vc-do-command nil 0 "cvs" file
|
||
(and writable
|
||
(or (not (file-exists-p file))
|
||
(not (eq (vc-cvs-checkout-model file)
|
||
'implicit)))
|
||
"-w")
|
||
"update"
|
||
;; default for verbose checkout: clear the sticky tag so
|
||
;; that the actual update will get the head of the trunk
|
||
(if (or (not rev) (string= rev ""))
|
||
"-A"
|
||
(concat "-r" rev))
|
||
switches))))
|
||
(vc-mode-line file)
|
||
(message "Checking out %s...done" filename)))))
|
||
|
||
(defun vc-cvs-annotate-command (file buffer)
|
||
"Execute \"cvs annotate\" on FILE by using `call-process' and insert
|
||
the contents in BUFFER."
|
||
(call-process "cvs" nil buffer nil "annotate" file))
|
||
|
||
(defvar vc-cvs-local-month-numbers
|
||
'(("Jan" . 1) ("Feb" . 2) ("Mar" . 3) ("Apr" . 4)
|
||
("May" . 5) ("Jun" . 6) ("Jul" . 7) ("Aug" . 8)
|
||
("Sep" . 9) ("Oct" . 10) ("Nov" . 11) ("Dec" . 12))
|
||
"Local association list of month numbers")
|
||
|
||
(defun vc-cvs-annotate-difference (point)
|
||
"Return the difference between the time of the line and the current
|
||
time. Return values are as defined for `current-time'."
|
||
;; We need a list of months and their corresponding numbers.
|
||
(if (looking-at "^\\S-+\\s-+\\S-+\\s-+\\([0-9]+\\)-\\(\\sw+\\)-\\([0-9]+\\)): ")
|
||
(progn
|
||
(let* ((day (string-to-number (match-string 1)))
|
||
(month (cdr (assoc (match-string 2) vc-cvs-local-month-numbers)))
|
||
(year-tmp (string-to-number (match-string 3)))
|
||
;; Years 0..68 are 2000..2068.
|
||
;; Years 69..99 are 1969..1999.
|
||
(year (+ (cond ((> 69 year-tmp) 2000)
|
||
((> 100 year-tmp) 1900)
|
||
(t 0))
|
||
year-tmp)))
|
||
(goto-char (match-end 0)) ; Position at end makes for nicer overlay result
|
||
(- (car (current-time))
|
||
(car (encode-time 0 0 0 day month year)))))
|
||
;; If we did not look directly at an annotation, there might be
|
||
;; some further down. This is the case if we are positioned at
|
||
;; the very top of the buffer, for instance.
|
||
(if (re-search-forward
|
||
"^\\S-+\\s-+\\S-+\\s-+\\([0-9]+\\)-\\(\\sw+\\)-\\([0-9]+\\)): " nil t)
|
||
(progn
|
||
(beginning-of-line nil)
|
||
(vc-cvs-annotate-difference (point))))))
|
||
|
||
(provide 'vc-cvs)
|
||
|
||
;;; vc-cvs.el ends here
|