From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Michael Albinus <michael.albinus@gmx.de>
Cc: emacs-devel@gnu.org, Federico Tedin <federicotedin@gmail.com>
Subject: Re: INSIDE_EMACS and Tramp
Date: Sun, 03 May 2020 10:51:16 -0400 [thread overview]
Message-ID: <jwv5zddhy8e.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <87k11txkox.fsf@gmx.de> (Michael Albinus's message of "Sun, 03 May 2020 14:33:02 +0200")
> No. The point is that it is dynamic, whether Tramp needs to add a
> substring to INSIDE_EMACS, or not. Compare
>
> --8<---------------cut here---------------start------------->8---
> (let ((default-directory "/"))
> (inside-emacs "foo"))
>
> => "28.0.50,foo"
> --8<---------------cut here---------------end--------------->8---
>
> --8<---------------cut here---------------start------------->8---
> (let ((default-directory "/ssh::/"))
> (inside-emacs "foo"))
>
> => "28.0.50,foo,tramp:2.5.0-pre"
> --8<---------------cut here---------------end--------------->8---
I don't understand this example: why should `inside-emacs` return
something related to Tramp just because default-directory happens to
currently point to a Tramp directory?
`inside-emacs` is only of interest when creating a subprocess, and if
that subprocess is created on a remote machine, Tramp will get a change
to add ",tramp" to it when it gets called by the
file-name-handler mechanism.
In the original situation, IIUC what happens that Eshell sets up
INSIDE_EMACS with ",eshell" then creates the process, which gets
delegated to Tramp, at which point Tramp would add ",tramp" to
INSIDE_EMACS so we'd get what we need.
Stefan
next prev parent reply other threads:[~2020-05-03 14:51 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200402230535.10490.95720@vcs0.savannah.gnu.org>
[not found] ` <20200402230536.E0A3F20CDD@vcs0.savannah.gnu.org>
2020-04-03 8:35 ` INSIDE_EMACS and Tramp (was: master f28166d: Copy INSIDE_EMACS env variable to subprocesses in Eshell (Bug#25496)) Michael Albinus
2020-04-04 14:53 ` Federico Tedin
2020-04-04 15:10 ` INSIDE_EMACS and Tramp Michael Albinus
2020-04-04 20:13 ` Federico Tedin
2020-04-13 9:07 ` Michael Albinus
2020-04-17 20:16 ` Federico Tedin
2020-05-02 14:54 ` Michael Albinus
2020-05-02 15:39 ` Eli Zaretskii
2020-05-02 16:04 ` Michael Albinus
2020-05-02 16:17 ` Eli Zaretskii
2020-05-02 16:16 ` Eli Zaretskii
2020-05-02 17:20 ` Stefan Monnier
2020-05-03 12:33 ` Michael Albinus
2020-05-03 14:51 ` Stefan Monnier [this message]
2020-05-03 16:08 ` Michael Albinus
2020-05-03 20:54 ` Stefan Monnier
2020-05-04 7:08 ` Michael Albinus
2020-05-04 8:47 ` Michael Albinus
2020-05-04 15:38 ` Stefan Monnier
2020-05-04 16:11 ` Michael Albinus
2020-05-03 14:52 ` Federico Tedin
2020-05-03 16:19 ` Michael Albinus
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