GNU bug report logs - #10911
24.0.94; `ido-read-directory-name' should offer known hosts for completion

Previous Next

Full log

View this message in rfc822 format

From: Michael Albinus <michael.albinus <at> gmx.de>
To: Stefan Kangas <stefan <at> marxist.se>
Cc: Oleksandr Manzyuk <manzyuk <at> gmail.com>, 10911 <at> debbugs.gnu.org
Subject: bug#10911: 24.0.94; `ido-read-directory-name' should offer known hosts for completion
Date: Wed, 27 Oct 2021 17:27:34 +0200

Stefan Kangas <stefan <at> marxist.se> writes:

> Hi Michael,

Hi,

> Could you perhaps take a look at the below bug?  It seems to relate to
> completions when using Tramp.

Somehow, I did miss the bug. I don't read all bug reports, and likely
the subject line was too long in order to get my attention with the
words "known hosts". So be it just now.

> Oleksandr Manzyuk <manzyuk <at> gmail.com> writes:
>
>> This is a feature request rather than a bug.  `ido-read-directory-name'
>> doesn't offer known hosts for completion, unlike `ido-read-file-name'.
>> Here is what I mean by that.  I'm assuming that `ido-mode' is on.
>> Please forgive me if I belabor the point.
>>
>> When I type C-x C-f // and hit TAB, I obtain an *Ido Completions* buffer
>> containing not only local directory names (bin/, boot/, dev/ etc.), but
>> also known hosts, which is very convenient in conjunction with TRAMP.  I
>> can type C-x C-f // g o RET, which expands into /golconda.cs.nuim.ie:,
>> and if I already have a remote shell running on that host, I can see a
>> list of files and directories there.  If there is no remote shell yet, I
>> can simply hit RET, and it will be opened using TRAMP.  Of course, I can
>> open a dired buffer visiting a remote directory this way, but it should
>> also be equally convenient to do that with `ido-dired'.  While it is
>> possible, it is also less convenient: I have to type C-x d //, type the
>> host name followed by colon *in full and without completion*.
>>
>> Summarizing, there is a discrepancy in how `ido-read-directory-name' and
>> `ido-read-file-name' generate completions, and I don't see why this
>> should be the case.

Well, time has passed, and Tramp has changed. Meanwhile, a method name
is mandatory.

I've tried with recent master (Emacs 29.0.50). If I call

emacs -Q -L ~/src/tramp/lisp/ -l tramp -f ido-mode

I can type "C-x d /ss TAB", and the method "ssh" is not offered. So I
continue with "h: TAB", and again, the host name is not offered.

If I read a file name, via "C-x C-f /ss TAB", it completes to "/ssh:"
(and the similar methods). Typing ": TAB" gives me host name
completion. So the situation is similar to what the OP has reported.

However, I don't know ido.el pretty good, so some body else, who knows
this beast, might continue with analysis. If there are questions from
Tramp, don't hesitate to ask.

Best regards, Michael.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.