* shell.el (shell): When called interactively, offer to change the

shell file name on remote hosts.

2 files changed, 20 insertions, 0 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index c74e7cbdb2d..b36be6f3a09 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,8 @@
+2011-03-14  Michael Albinus  <michael.albinus@gmx.de>
+
+        * shell.el (shell): When called interactively, offer to change the
+        shell file name on remote hosts.
+
 2011-03-13  Teodor Zlatanov  <tzz@lifelogs.com>
 
         * net/ldap.el (ldap-search-internal): Add `auth-source-search'
diff --git a/lisp/shell.el b/lisp/shell.el
index bceea990baf..dde81c6cb95 100644
--- a/lisp/shell.el
+++ b/lisp/shell.el
@@ -583,6 +583,21 @@ Otherwise, one argument `-i' is passed to the shell.
                    (get-buffer-create (or buffer "*shell*"))
                  ;; If the current buffer is a dead shell buffer, use it.
                  (current-buffer)))
+
+  ;; On remote hosts, the local `shell-file-name' might be useless.
+  (if (and (interactive-p)
+           (file-remote-p default-directory)
+           (null explicit-shell-file-name)
+           (null (getenv "ESHELL")))
+      (with-current-buffer buffer
+        (set (make-local-variable 'explicit-shell-file-name)
+             (file-remote-p
+              (expand-file-name
+               (read-file-name
+                "Remote shell path: " default-directory shell-file-name
+                t shell-file-name))
+              'localname))))
+
   ;; 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).
   (pop-to-buffer buffer)