Joseph Garvin <k04j...@gmail.com> writes: Hi Joseph,
> I originally posted this on the emacs stack exchange > (https://emacs.stackexchange.com/questions/78768/reopen-with-sudo-command-that-works-through-tramp) > but they suggested I try here. > > I have tried to define this command: > > ``` > (defun etc-reopen-with-sudo () > (interactive) > (let* ((vec (tramp-dissect-file-name (buffer-file-name > (current-buffer)))) > (method (tramp-file-name-method vec)) > (user (tramp-file-name-user vec)) > (host (tramp-file-name-host vec)) > (localname (tramp-file-name-localname vec))) > (message "localname=%s" localname) > (find-alternate-file > (if (tramp-tramp-file-p (buffer-file-name (current-buffer))) > (concat (format "/%s:%s@%s|sudo::%s" method user host > localname)) > (concat "/sudo:root@localhost:" buffer-file-name))))) > ``` > > It worked once... and now ever since mysteriously hangs whenever I try > to use it to open a file with sudo on a remote host with ssh. The idea > for what file string to use for this comes from > https://stackoverflow.com/questions/2177687/open-file-via-ssh-and-sudo-with-emacs > which suggests `/ssh:you@remotehost|sudo:remotehost:/path/to/file` > should work. I'm able to visit files on the host just fine without > sudo. Any ideas what I'm doing wrong here? Well, your function has some flaws. For example, it doesn't handle the case there's no user in the buffer-file-name, like in "/ssh:remotehost:/path/to/file". Furthermore, you use the "sudo::" construct in the second hop, which works reliably since Tramp 2.4 (Emacs 27.1) only. Which versions do you use? Best regards, Michael.
