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bug#3869: 23.1.50; vc-rcs toggles read-only-mode even when a file is che


From: Maurizio Vitale
Subject: bug#3869: 23.1.50; vc-rcs toggles read-only-mode even when a file is checked out by the same user who has the lock
Date: Thu, 16 Jul 2009 16:42:04 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1.50 (gnu/linux)

Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the address@hidden mailing list.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

If you open a file under RCS that has been saved but not checked back in
the file is open read-only. It seems like this is due to

(defun vc-rcs-find-file-hook ()
  ;; If the file is locked by some other user, make
  ;; the buffer read-only.  Like this, even root
  ;; cannot modify a file that someone else has locked.
  (stringp (vc-state buffer-file-name 'RCS))
  (setq buffer-read-only t))

that should be something like:

(defun vc-rcs-find-file-hook ()
  ;; If the file is locked by some other user, make
  ;; the buffer read-only.  Like this, even root
  ;; cannot modify a file that someone else has locked.
  (and (stringp (vc-state buffer-file-name 'RCS))
       (setq buffer-read-only t)))


If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
/usr/local/emacs-07112009/share/emacs/23.1.50/etc/DEBUG for instructions.


In GNU Emacs 23.1.50.3 (x86_64-unknown-linux-gnu, GTK+ Version 2.16.1)
 of 2009-07-11 on cuma
Windowing system distributor `The X.Org Foundation', version 11.0.10600000
configured using `configure  '--prefix=/usr/local/emacs-07112009/''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: ERC

Minor modes in effect:
  diff-auto-refine-mode: t
  erc-list-mode: t
  erc-menu-mode: t
  erc-ring-mode: t
  erc-pcomplete-mode: t
  erc-button-mode: t
  erc-netsplit-mode: t
  iswitchb-mode: t
  recentf-mode: t
  display-time-mode: t
  show-paren-mode: t
  erc-track-mode: t
  erc-track-minor-mode: t
  erc-match-mode: t
  erc-services-mode: t
  erc-networks-mode: t
  erc-fill-mode: t
  erc-stamp-mode: t
  erc-spelling-mode: t
  flyspell-mode: t
  erc-autojoin-mode: t
  erc-irccontrols-mode: t
  erc-noncommands-mode: t
  erc-move-to-prompt-mode: t
  erc-readonly-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
u r n s SPC a SPC s t r i n g SPC i f f SPC t h e SPC 
s u i l e <backspace> <backspace> <backspace> <backspace> 
<backspace> f i l e SPC i s SPC l o c k e d SPC b y 
SPC s o m e SPC o t h e r SPC u s e e <backspace> r 
SPC a n d SPC t h e SPC i n f o r m a t i o n SPC s 
h o u l d SPC b e SPC u s e d SPC t o SPC d e c i d 
e SPC w h e t h e r SPC t o SPC t o g g l e SPC t h 
e SPC r e a d - o n l y SPC m o d e . <return> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> C-h 
a b u g <return> <escape> C-v <escape> C-v <escape> 
C-v C-x o <escape> < s r e p o r t C-SPC C-s r e p 
o r t C-s C-s C-s C-s C-s C-s C-s C-s C-s C-s C-x o 
<help-echo> <help-echo> l e <tab> b u t SPC i t SPC 
d e o <backspace> <backspace> o e s n ' t SPC h e l 
p SPC i f SPC i t SPC <help-echo> d o e s n ' t SPC 
g e t SPC i n t o SPC t h e SPC r e l e a s e d SPC 
v e r s i o n . <return> <escape> x r e p o r <tab> 
b <tab> <return>

Recent messages:
Mark activated
Mark set [2 times]
Contacting host: pastebin.com:80
Mark set [2 times]
Contacting host: pastebin.com:80
Mark set
Type C-x 1 to remove help window.  
Mark set
Buffer is read-only: #<buffer *Apropos*> [7 times]
Mark set

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