GNU bug report logs - #46351
28.0.50; Add convenient way to bypass Eshell's own pipelining

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From: Sean Whitton <spwhitton <at> spwhitton.name>
To: 46351 <at> debbugs.gnu.org, Michael Albinus <michael.albinus <at> gmx.de>
Subject: bug#46351: 28.0.50; Add convenient way to bypass Eshell's own pipelining
Date: Fri, 24 Dec 2021 14:20:27 -0700

[Message part 1 (text/plain, inline)]

Hello,

On Mon 08 Feb 2021 at 11:28AM +01, Michael Albinus wrote:

> Maybe we could add it to the defaults. But at least I would
> like to see it documented in the eshell manual, otherwise nobody will
> know the effect of "!!".

I'm attaching new patches which

- switch !! to ||, because !! in shells typically has something to do
  with rerunning the last command

- activate the syntax by default -- I do use Eshell regularly myself,
  and I don't believe that activating it by default is likely to disrupt
  anyone's usage

- adds a section to the Eshell manual introducing the new syntax.

> And I have the impression, that the eshell history is not preserved any
> longer, when I have applied these settings.

I have not been able to reproduce this -- can you confirm?

> It doesn't work for me. The reason is a little bit subtle: you use
> `shell-file-name' in order to call a remote shell. In my case, it is
> "/usr/local/bin/tcsh", which doesn't exist on the remote machine I've
> used for testing.

I was able to fix this by using `with-connection-local-variables'.
Thank you for pointing out the problem.

-- 
Sean Whitton

[v2-0001-Add-eshell-restore-unexpanded-input.patch (text/x-patch, attachment)]

[v2-0002-Add-eshell-shell-command-and-eshell-expand-to-esh.patch (text/x-patch, attachment)]

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