Re: With /sudo::/etc instead of /etc, files are not conf mode by default

[Michael Albinus <michael.albinus@gmx.de>]

trentbuck@gmail.com writes:

> The file /etc/default/tftpd-hpa uses conf mode by default, presumably
> due to auto-mode-alist.  However, opening the same file with TRAMP's
> sudo method: /sudo::/etc/default/tftpd-hpa, causes it to be in
> fundamental mode.  Presumably this is because the auto-mode-alist
> entry uses ^/ to match the root directory or similar.

The following patch should fix it. It will appear also in Emacs 22.2.

Thanks for reporting, and best regards, Michael.

Index: lisp/files.el
===================================================================
RCS file: /sources/emacs/emacs/lisp/files.el,v
retrieving revision 1.896.2.5
retrieving revision 1.896.2.11
diff -u -u -r1.896.2.5 -r1.896.2.11
--- lisp/files.el       22 May 2007 11:41:33 -0000      1.896.2.5
+++ lisp/files.el       5 Aug 2007 08:57:24 -0000       1.896.2.11
@@ -2254,7 +2254,12 @@
     ;; Next compare the filename against the entries in auto-mode-alist.
     (unless done
       (if buffer-file-name
-         (let ((name buffer-file-name))
+         (let ((name buffer-file-name)
+               (remote-id (file-remote-p buffer-file-name)))
+           ;; Remove remote file name identification.
+           (when (and (stringp remote-id)
+                      (string-match remote-id name))
+             (setq name (substring name (match-end 0))))
            ;; Remove backup-suffixes from file name.
            (setq name (file-name-sans-versions name))
            (while name