From: Michael Albinus <michael.albinus@gmx.de>
To: David Landell <david.landell@sunnyhill.email>
Cc: 54405@debbugs.gnu.org
Subject: bug#54405: 27.1; How to reset connection-local variable
Date: Fri, 18 Mar 2022 12:38:05 +0100 [thread overview]
Message-ID: <87h77vij8i.fsf@gmx.de> (raw)
In-Reply-To: <87lex7iv1n.fsf@gmx.de> (Michael Albinus's message of "Fri, 18 Mar 2022 08:23:00 +0100")
Michael Albinus <michael.albinus@gmx.de> writes:
Hi David,
>> So, seems I should use my own :application key but then I can't use
>> the resetting macro since that is not applying locals with a unique :application
>> key. There is something there with 'tramp' being applied by default that
>> I don't understand though.
>
> `with-connection-local-variables' calls
> `connection-local-criteria-for-default-directory' w/o an APPLICATION
> argument, that's why `tramp' is used by default. Perhaps we shall extend
> `with-connection-local-variables' to accept another :application
> key. But for the time being, you might copy
> `with-connection-local-variables' into your own package under another
> name, and modify it accordingly.
I've pushed a change to the Emacs master git branch, which allows to
change the application in `with-connection-local-variables'. The Elisp
manual has been extended with
--8<---------------cut here---------------start------------->8---
-- Variable: connection-local-default-application
The default application, a symbol, to be applied in
‘with-connection-local-variables’. It defaults to ‘tramp’, but in
case you want to overwrite Tramp’s settings temporarily, you could
let-bind it like
(connection-local-set-profile-variables
'my-remote-perl
'((perl-command-name . "/usr/local/bin/perl5")
(perl-command-switch . "-e %s")))
(connection-local-set-profiles
'(:application 'my-app :protocol "ssh" :machine "remotehost")
'my-remote-perl)
(let ((default-directory "/ssh:remotehost:/working/dir/")
(connection-local-default-application 'my-app))
(with-connection-local-variables
do something useful))
This variable must not be changed globally.
--8<---------------cut here---------------end--------------->8---
Does this suffice?
>> /David
Best regards, Michael.
next prev parent reply other threads:[~2022-03-18 11:38 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-15 20:44 bug#54405: 27.1; How to reset connection-local variable David Landell
2022-03-16 18:35 ` Michael Albinus
2022-03-17 15:02 ` David Landell
2022-03-18 7:23 ` Michael Albinus
2022-03-18 11:38 ` Michael Albinus [this message]
2022-03-18 16:57 ` David Landell
2022-03-19 8:24 ` Michael Albinus
2022-03-19 15:57 ` Drew Adams
2022-03-19 17:57 ` Michael Albinus
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