GNU bug report logs - #1975
Reusing dead shell buffers

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Message #3 received at quiet <at> emacsbugs.donarmstrong.com (full text, mbox):

From: jemarch <at> gnu.org
To: quiet <at> debbugs.gnu.org
Subject: Reusing dead shell buffers
Date: Sun, 11 Jan 2009 21:19:21 +0100

Severity: wishlist

[ resent from
  http://lists.gnu.org/archive/html/emacs-devel/2009-01/msg00295.html ]

Hi.

Just a tiny patch for shell.

The patch assumes that the person launching M-xshell while in a
shell-mode buffer with a terminated process really wants to launch a
shell process in the current buffer instead to switch to "*shell*".

The semantics of C-uM-xshell are not changed by the patch.

Index: shell.el
===================================================================
RCS file: /cvsroot/emacs/emacs/lisp/shell.el,v
retrieving revision 1.165
diff -u -r1.165 shell.el
--- shell.el	5 Jan 2009 03:19:45 -0000	1.165
+++ shell.el	11 Jan 2009 19:46:35 -0000
@@ -555,6 +555,9 @@
 		      (read-file-name
 		       "Default directory: " default-directory default-directory
 		       t nil 'file-directory-p))))))))
+  ;; If the current buffer is a dead shell buffer, use it.
+  (if (and (not buffer) (eq major-mode 'shell-mode))
+      (setq buffer (current-buffer)))
   (setq buffer (get-buffer-create (or buffer "*shell*")))
   ;; Pop to buffer, so that the buffer's window will be correctly set
   ;; when we call comint (so that comint sets the COLUMNS env var properly).

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