GNU bug report logs - #32588
27.0.50; ‘default-directory’ not updated

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Andreas Röhler <andreas.roehler <at> easy-emacs.de>
To: bug-gnu-emacs <at> gnu.org
Subject: 27.0.50; ‘default-directory’ not updated
Date: Thu, 30 Aug 2018 13:09:35 +0200

‘default-directory’ not updated when dir was changed by a program

Recipe from emacs -Q:

M-x shell RET
cd
mkdir newdir
echo "cd \$HOME/newdir/" > tonewdir
chmod 700 tonewdir
. tonewdir
pwd

;;;
`pwd` prints correctly result of $HOME/newdir
while C-h v default-directory RET displays value of $HOME

Thanks,
Andreas

In GNU Emacs 27.0.50 (build 1, i686-pc-linux-gnu, GTK+ Version 3.14.5)
 of 2018-08-29
Repository revision: 190e85b8d286408a88bb611967e658639c48d6c5
Windowing system distributor 'The X.Org Foundation', version 11.0.11604000
System Description: Debian GNU/Linux 8 (jessie)

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
~
Mark set
M-RET is undefined
Type "q" in help window to restore its previous buffer, C-M-v to scroll 
help.

Configured using:
 'configure --with-modules'

Configured features:
XPM JPEG TIFF GIF PNG RSVG SOUND GPM DBUS GSETTINGS NOTIFY ACL GNUTLS
LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS GTK3 X11
MODULES THREADS GMP

Important settings:
  value of $LANG: de_DE.utf8
  value of $XMODIFIERS: @im=ibus
  locale-coding-system: utf-8-unix

Major mode: Shell

Minor modes in effect:
  shell-dirtrack-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-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-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Load-path shadows:
None found.

Features:
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Memory information:
((conses 8 197517 14501)
 (symbols 24 43324 1)
 (strings 16 77483 2527)
 (string-bytes 1 1273902)
 (vectors 12 16798)
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Message #8 received at 32588 <at> debbugs.gnu.org (full text, mbox):

From: Noam Postavsky <npostavs <at> gmail.com>
To: Andreas Röhler <andreas.roehler <at> easy-emacs.de>
Cc: 32588 <at> debbugs.gnu.org
Subject: Re: bug#32588: 27.0.50; ‘default-directory’ not updated
Date: Thu, 30 Aug 2018 07:18:26 -0400

tags 32588 notabug
close 32588
quit

Andreas Röhler <andreas.roehler <at> easy-emacs.de> writes:

> ‘default-directory’ not updated when dir was changed by a program
>
> Recipe from emacs -Q:
>
> M-x shell RET
> cd
> mkdir newdir
> echo "cd \$HOME/newdir/" > tonewdir
> chmod 700 tonewdir
> . tonewdir
> pwd
>
> ;;;
> `pwd` prints correctly result of $HOME/newdir
> while C-h v default-directory RET displays value of $HOME

(emacs) Directory Tracking:

    Shell mode keeps track of `cd', `pushd' and `popd' commands given to
    the subshell, in order to keep the Shell buffer's default directory
    (*note File Names::) the same as the shell's working directory.  It
    recognizes these commands by examining lines of input that you send.

       If you use aliases for these commands, you can tell Emacs to
    recognize them also, by setting the variables `shell-pushd-regexp',
    `shell-popd-regexp', and `shell-cd-regexp' to the appropriate regular
    expressions (*note Regexps::).

       If Emacs gets confused about changes in the working directory of the
    subshell, type `M-x dirs'.

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