Commit c1b25099 authored by Gerd Moellmann's avatar Gerd Moellmann
Browse files

(vc-cvs-show-log-entry): New function.

(vc-cvs-stay-local): Allow it to be a hostname regexp
as well.
(vc-cvs-remote-p): Renamed to vc-cvs-stay-local-p.  Handle
hostname regexps.  Updated all callers.
(vc-cvs-responsible-p): Handle directories as well.
(vc-cvs-could-register): New function.
(vc-cvs-retrieve-snapshot): Parse "cvs update" output, keep file
properties up-to-date.
(vc-cvs-checkout): Do the right thing when the
workfile does not exist.
(vc-cvs-registered): Use new function
vc-cvs-parse-entry to do the actual work.
(vc-cvs-remote-p): Allow FILE to be a directory, too.
(vc-cvs-dir-state): New function.
(vc-cvs-dir-state-heuristic): New function, subroutine of the
above.
(vc-cvs-parse-entry): New function, also to be used in
vc-cvs-registered.
(vc-cvs-checkout): Slight restructuring to make the
control-flow more clear and to avoid running `cvs' twice.
(vc-cvs-workfile-version): Removed comment that this
is not reached.  It is.
(vc-cvs-merge): Set state to 'edited after merge.
(vc-cvs-merge-news): Set workfile version to nil if not known.
(vc-cvs-latest-on-branch-p): Recommented.  Candidate for removal.
(vc-cvs-checkin): Raise the max-correct status from 0
to 1.  Make sure to switch to *vc* before looking for an error
message.  Use vc-parse-buffer.
(vc-cvs-create-snapshot): Swap DIR and NAME.
(vc-cvs-retrieve-snapshot): New function (untested).
(vc-cvs-stay-local): Default to t.
(vc-cvs-remote-p): New function and property.
(vc-cvs-state): Stay local only if the above is t.
(vc-handle-cvs): Removed.
(vc-cvs-registered): Don't check vc-handle-cvs -- it should all be
done via vc-handled-backends now.
(vc-cvs-header): Escape Id.
(vc-cvs-state, vc-cvs-fetch-status): Use
with-temp-file.  Use the new BUFFER=t argument to vc-do-command.
(vc-cvs-print-log, vc-cvs-diff): Insert in the current buffer.
(vc-cvs-state): Use vc-do-command instead of
vc-simple-command.
(vc-cvs-diff): Remove unused and unsupported argument CMP.
(vc-cvs-registered): Obey vc-handle-cvs.
(vc-cvs-registered): Use with-temp-buffer.  Reorder
extraction of fields and call to file-attributes because of a
temporary bug in rcp.el.
(vc-cvs-fetch-status): Use with-current-buffer.
 Merge in code
from vc-cvs-hooks.el.
(proto vc-cvs-registered): Require 'vc-cvs instead of
'vc-cvs-hooks.  Don't require 'vc anymore.
(vc-cvs-responsible-p): Use expand-file-name instead of concat and
file-directory-p instead of file-exists-p.
(vc-cvs-create-snapshot): New function, replacing
vc-cvs-assign-name.
(vc-cvs-assign-name): Remove.
(vc-cvs-header): New var.
 Update Copyright.
(vc-cvs-diff): Remove unused `backend' variable.
(vc-cvs-checkout): Only toggle read-only if the buffer is setup
right.
(tail): Provide vc-cvs.
(vc-cvs-merge-news, vc-cvs-checkout): Removed call to
vc-file-clear-masterprops.
(vc-cvs-state): Typo.
(vc-cvs-merge-news): Return the status code rather than the error
msg.
(vc-cvs-state): Don't overwrite a non-heuristic state
with a heuristic one.
(vc-cvs-merge-news): Just use 'edited for the case with conflicts.
(vc-cvs-checkin): Do a trivial parse to set the state in case of
error.  That allows us to get to 'needs-merge even in the
stay-local case.  There's still no way to detect 'needs-patch in
such a setup (or to force an update for that matter).
(vc-cvs-logentry-check): Remove, the default works as well.
(vc-cvs-print-log, vc-cvs-diff): Run cvs
asynchronously.
(vc-cvs-stay-local): Renamed from
vc-cvs-simple-toggle.  Redocumented.
(vc-cvs-state): If locality is wanted, use vc-cvs-state-heuristic.
(vc-cvs-toggle-read-only): Removed.
(for compiler
warnings).
(vc-cvs-release, vc-cvs-system-release): Remove.
(vc-cvs-use-edit, vc-cvs-simple-toggle): New config variables.
(vc-cvs-dired-state-info): Use `cvs-state' and slightly different
status symbols.
(vc-cvs-parse-status, vc-cvs-state): Move from vc-cvs-hooks.el.
(vc-cvs-toggle-read-only): First cut at a function to allow a
cvs-status-free vc-toggle-read-only.
(vc-cvs-merge-news): Move from cvs-merge-news in vc.el.
(vc-cvs-checkin): Use vc-recompute-state+vc-state instead of
vc-cvs-status.  Also set vc-state rather than vc-locking-user.
(vc-cvs-checkout): Modify access rights directly if the user
requested not to use `cvs edit'.  And refresh the mode line.
(if
workfile' that got lost when the code was extracted from vc.el.
And merged the tail with the rest of the code (not possible in the
old vc.el where the tail was shared among all backends).  And
explicitly set the state to 'edited if `writable' is set.
(vc-cvs-revert,vc-cvs-checkout): References to
`vc-checkout-model' updated to `vc-cvs-update-model'.
(vc-cvs-logentry-check): Function added.
(vc-cvs-revert,vc-cvs-checkout): Function calls to
`vc-checkout-required' updated to `vc-cvs-uses-locking'.
(vc-cvs-admin): Added the query-only option as
required by the vc.el file.
(vc-cvs-annotate-difference): Updated to handle
beginning of annotate buffers correctly.
 Rename `vc-uses-locking' to
`vc-checkout-required'.  Rename the `locked' state to `reserved'.
(vc-cvs-annotate-difference): Handle possible
millenium problem (merged from mainline).
 Split the annotate feature into a BACKEND-specific
part and moved the non-BACKEND stuff to vc.el.
(vc-cvs-latest-on-branch-p): Function added.
(vc-cvs-revert): Merged and adapted "unedit" patch
from main line.
(vc-cvs-diff): Function added.
(vc-cvs-checkout): Function `vc-cvs-checkout' added.
 Require vc when compiling.
(vc-cvs-register-switches): Doc fix.
(vc-annotate-color-map, vc-annotate-menu-elements): Fix custom type.
(vc-cvs-print-log, vc-cvs-assign-name, vc-cvs-merge)
(vc-cvs-check-headers, vc-cvs-steal, vc-cvs-revert, vc-cvs-checkin):
New functions (code from vc.el).
(vc-annotate-display-default): Fix interactive spec.
(vc-annotate-time-span): Doc fix.
 Moved the annotate functionality from vc.el.
(vc-cvs-admin, vc-cvs-fetch-status): Added from vc.el.
(vc-cvs-system-release):
Renamed from vc-cvs-backend-release.
(vc-cvs-release): Moved from vc.el.
(vc-cvs-backend-release): New function.
(vc-cvs-dired-state-info, vc-cvs-fetch-status): Moved
from vc.el and renamed.
parent d8aff077
;;; 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 1.58 2000/08/12 18:47:41 spiegel 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-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)
(vc-file-setprop file 'vc-state 'up-to-date)
(vc-file-setprop file 'vc-checkout-time (nth 5 (file-attributes file)))
;; 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))
(when writable (vc-file-setprop file 'vc-state 'edited))
(vc-file-setprop file
'vc-checkout-time (nth 5 (file-attributes file)))))
(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]+\\)): ")