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I often use ido for auto-completion and tramp to access remote server via ssh. My .emacs includes the following lines:

(require 'tramp)
(setq tramp-default-method "ssh")
(ido-mode 1)
(setq ido-enable-flex-matching t)
(setq ido-everywhere t)

I want to disable Ido completion, when i'm browsing contents of remote server. Note that variable ido-enable-tramp-completion has nothing to do with my problem. Consider line /root@site.com#1234:/var/www/file.txt. I need Ido not to deduct the part after the colon (remote file path), i don't care about the part before the colon. I use ssh, and Ido makes Emacs lag for a few seconds every time i run ido-find-file, and when ssh timeout is over, Tramp tries to reconnect, asks me for a password and so on. This behavior is undesirable.

Emacs version - 24.0.94.1

Edit (20.03.12): After contact with Ido author I tried to change the ido-file-name-all-completions-1 to the following:

(defun ido-file-name-all-completions-1 (dir)
  (cond
   ((ido-nonreadable-directory-p dir) '())
   ;; do not check (ido-directory-too-big-p dir) here.
   ;; Caller must have done that if necessary.

   ((and ido-enable-tramp-completion
     (or (fboundp 'tramp-completion-mode-p)
         (require 'tramp nil t))
     (string-match "\\`/[^/]+[:@]\\'" dir))
    ;; TRAMP RELATED CODE DELETED
    nil)
   (t
    (file-name-all-completions "" dir))))

No success. I then changed regex to 

"\\`/[^/]+[:@]"

and it worked - Ido was disabled, when minibuffer contained that match. However as Ido couldn't see files on a remote server, it started calling ido-make-merged-file-list to search for files in other directories every time i enter something. This made working with Ido on remote servers even more pain.

I also tried setting up variables ido-slow-ftp-hosts and ido-slow-ftp-host-regexps to /root@site.com#1234, didn't help.

Mirzhan Irkegulov
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  • This question seems related to [this other question](https://stackoverflow.com/questions/10397687/stop-tramp-from-opening-remote-directories-when-using-ido-mode). – user1735594 Jul 03 '18 at 09:27

1 Answers1

12

If you enter C-x C-f again you temporally disable ido-find and fall back to the default find-file.

For more information C-h f ido-find-file RET

To do this every time ido found a colon, I guess you have to write your own function for that.

mathk
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  • If i do `ido-find-file` twice, then this error is thrown in `*Backtrace*` buffer - `Debugger entered--Lisp error: (error "Command attempted to use minibuffer while in minibuffer")Debugger entered--Lisp error: (error "Command attempted to use minibuffer while in minibuffer")`. And where should i write this function? – Mirzhan Irkegulov Mar 13 '12 at 10:07
  • You can't run ido-find-file twice. The `C-x C-f` command will not lunch the ido-find-file, it just fall back to find-file. Do not type `M-x ido-find-file RET` again. Type `C-x C-f`. – mathk Mar 13 '12 at 10:16
  • I see. Where should i write a function for ido seeing a colon? – Mirzhan Irkegulov Mar 13 '12 at 15:24
  • For this case I don't think there is a hook. I suggest that you rewrote your own find-file method and copy most of the behavior of ido-find-file except when you see colon. – mathk Mar 16 '12 at 15:29
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    two years after and I find this post helpful! – Husain Sep 13 '14 at 14:56