GNU bug report logs - #23006
25.0.92; Loading Tramp breaks pcomplete in eshell-mode

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Message #239 received at 23006 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Dmitry Gutov <dgutov <at> yandex.ru>
Cc: Michael Albinus <michael.albinus <at> gmx.de>, 23006 <at> debbugs.gnu.org
Subject: Re: bug#23006: 25.0.92; Loading Tramp breaks pcomplete in eshell-mode
Date: Thu, 24 Mar 2016 11:56:17 -0400

>> The question is: does Tramp need to know whether or not this
>> `directory-files', or `file-directory-p' (or
>> `file-name-all-completions', which may also be called in non-completion
>> contexts) is called as part of a completion operation?
>
> A general purpose function cannot know.
> file-name-all-completions cannot know either, because it can be called
> outside of completion context.
>
> A completion UI cannot know, in general, because it can be used to complete
> just about anything, and it doesn't always know what it's completing.

AFAIK, by definition, a completion UI knows that it's performing completion.
So, I don't see much difficulty in telling Tramp that we're
performing completion: just let-bind some new `in-completion' variable
in the few completion UIs we have.

The problem is that I don't see any reason why Tramp would need to know.


        Stefan

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