bug#7850: 23.2.91; emacs runs svn status -v after every file save

[Steve Revilak]

This bug report will be sent to the Free Software Foundation,
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Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your report will be posted to the bug-gnu-emacs@gnu.org mailing list
and the gnu.emacs.bug news group, and at http://debbugs.gnu.org.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug.  If you can, give
a recipe starting from `emacs -Q':

---------------------------------

I would like to report a minor bug in emacs 23.2.91.  When editing a
file that is kept in svn version control, emacs runs "svn status -V
FILE" each time the file's buffer is saved.  Other vc backends do not
exhibit this behavior.  For example, the git backend does not run "git
status" on save, and the cvs backend does not run "cvs status" on
save.

The invocation of "svn status -V" does not cause functional problems.
Instead, it makes save-buffer seem sluggish when editing files in
subversion version control, because a shell command is run after each
file save.

Steps to reproduce:

 + create a file called svn.txt, which was checked out of a subversion
   repository.  

 + emacs -Q -nw

 + evaluate the expression "(setq vc-command-messages t)" in the
   *scratch* buffer.

 + C-x C-f /path/to/svn.txt RET

 + edit the buffer, then C-x C-s to save the buffer

In the *Messages* buffer, this produces

  Saving file /home/srevilak/tmp/src/svn.txt...
  Wrote /home/srevilak/tmp/src/svn.txt
  Running svn status -v svn.txt in foreground...
  Running svn status -v svn.txt...OK = 0

 + optionally, repeat this process with a file name git.txt (kept
   under git version control), or cvs.txt (kept under cvs version
   control).  Verify that saving git.txt (or cvs.txt) does NOT produce
   vc-command-messages in the *Messages* buffer.


I have two builds of emacs-23.2.91: one on OpenSUSE 11.3, and other on
Mac OS X 10.6.  Both exhibit the same behavior (with svn 1.6).

I've checked before-save-hook and after-save-hook, and both are nil.

If there is additional information that would be helpful, I would be
happy to provide it.  I would also be happy to test patches.

I realize that the latest pretest is emacs 23.2.92.  I've been waiting
to see the outcome of
http://lists.gnu.org/archive/html/emacs-devel/2011-01/msg00477.html
before installing the latest 23.2.92.

Kind regards.

Steve Revilak

---------------------------------

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'.
For information about debugging Emacs, please read the file
/usr/local/emacs-23.2.91/share/emacs/23.2.91/etc/DEBUG.


In GNU Emacs 23.2.91.1 (x86_64-unknown-linux-gnu, GTK+ Version 2.20.1)
 of 2011-01-01 on sunny
Windowing system distributor `The X.Org Foundation', version 11.0.10800000
configured using `configure  '--prefix=/usr/local/emacs-23.2.91' 'CFLAGS=-g -O2 
-fno-optimize-sibling-calls''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: C
  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: @im=local
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Shell

Minor modes in effect:
  shell-dirtrack-mode: t
  diff-auto-refine-mode: t
  display-time-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
  blink-cursor-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t

Recent input:
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <down> <down> C-a <tab> <down> 
C-c C-c d <return> <tab> <down> C-c C-c s <return> 
<tab> <down> C-c C-c d d <return> <up> C-c C-c s r 
<return> C-x C-s <down> <tab> C-x C-s <escape> > C-a 
<tab> M-> <return> <return> <return> C-c C-x C-r C-SPC 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> C-w <backspace> <backspace> <backspace> 
C-x C-s M-x v c - d i <tab> r <return> <return> <down> 
<down> <down> <down> <down> <down> <down> <down> m 

Recent messages:
Making completion list...
Running git update-index --refresh . in background... done
Running git diff-index --relative -z -M HEAD -- . in background... done
Running git ls-files -z -o --directory --no-empty-directory --exclude-standard 
-- . in background... done
Mark set
Press C-c C-c when you are done editing.
Enter a change comment.  Type C-c C-c when done
Checking in /home/srevilak/filename-redacted.org...
Running git commit -m ad... --only -- filename-redacted.org...OK = 0
Checking in /home/srevilak/filename-redacted.org...done

Load-path shadows:
None found.

Features:
(shadow sort mail-extr message sendmail ecomplete rfc822 mml mml-sec
password-cache mm-decode mm-bodies mm-encode mailcap mail-parse rfc2231
rfc2047 rfc2045 qp ietf-drums mailabbrev nnheader gnus-util netrc
mm-util mail-prsvr gmm-utils wid-edit mailheader canlock hashcash
mail-utils emacsbug tabify org-table ansi-color shell comint log-edit
ring pcvs-util add-log diff-mode vc-bzr sha1 hex-util vc-sccs vc-svn
vc-cvs vc-rcs vc-dir ewoc vc vc-dispatcher help-mode view rect org-clock
diary-lib diary-loaddefs cal-iso vc-git org-wl org-w3m org-vm org-rmail
org-mhe org-mew org-irc org-jsinfo org-infojs org-html org-exp
org-exp-blocks org-info org-gnus org-bibtex org-bbdb regexp-opt cal-menu
calendar cal-loaddefs org-agenda org byte-opt warnings bytecomp
byte-compile advice help-fns advice-preload org-footnote org-src
org-list org-faces org-compat org-macs easymenu time-date noutline
outline easy-mmode edmacro kmacro paren time tooltip ediff-hook vc-hooks
lisp-float-type mwheel x-win x-dnd font-setting tool-bar dnd fontset
image fringe lisp-mode register page menu-bar rfn-eshadow timer select
scroll-bar mldrag mouse jit-lock font-lock syntax facemenu font-core
frame cham georgian utf-8-lang misc-lang vietnamese tibetan thai
tai-viet lao korean japanese hebrew greek romanian slovak czech european
ethiopic indian cyrillic chinese case-table epa-hook jka-cmpr-hook help
simple abbrev loaddefs button minibuffer faces cus-face files
text-properties overlay md5 base64 format env code-pages mule custom
widget hashtable-print-readable backquote make-network-process dbusbind
system-font-setting font-render-setting gtk x-toolkit x multi-tty emacs)

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