From: Michael Albinus <michael.albinus@gmx.de>
To: Sean Whitton <spwhitton@spwhitton.name>
Cc: 46351@debbugs.gnu.org
Subject: bug#46351: 28.0.50; Add convenient way to bypass Eshell's own pipelining
Date: Sat, 25 Dec 2021 14:51:30 +0100 [thread overview]
Message-ID: <87czlkbxnh.fsf@gmx.de> (raw)
In-Reply-To: <87tuex1yzo.fsf@melete.silentflame.com> (Sean Whitton's message of "Fri, 24 Dec 2021 14:20:27 -0700")
Sean Whitton <spwhitton@spwhitton.name> writes:
> Hello,
Hi Sean,
>> 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.
Thanks! I've played a little bit with it.
>> 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?
Yep, the eshell history is there. However, it looks a little bit weird,
when I have applied '|| cat .emacs | grep a'. The history shows me
'eshell-shell-command "cat .emacs | grep a"' instead. I understand
what's meant, but is this convenient for an occasional eshell user?
>> 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.
This is fixed, indeed.
Thinking more about, perhaps we could solve it a little bit
differently. Eshell knows how to invoke external commands explicitly, by
prefixing the command with a star like '*ls'. What if we do it the same
with pipes? That means, '*|' would mean to call an external pipe. So my
command above would be 'cat .emacs *| grep a'. And an external pipe
shall convert all other commands in that line into external commands as
well, like '*cat .emacs *| *grep a'.
By this you wouldn't need your restore-unexpanded-input patch any more, yes?
WDYT?
Best regards, Michael.
next prev parent reply other threads:[~2021-12-25 13:51 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-06 20:06 bug#46351: 28.0.50; Add convenient way to bypass Eshell's own pipelining Sean Whitton
2021-02-07 9:17 ` Michael Albinus
2021-02-07 19:01 ` Sean Whitton
2021-02-08 10:28 ` Michael Albinus
2021-02-08 18:07 ` Sean Whitton
2021-02-10 11:33 ` Michael Albinus
2021-12-24 21:20 ` Sean Whitton
2021-12-25 13:51 ` Michael Albinus [this message]
2021-12-25 22:45 ` Sean Whitton
2021-12-27 14:42 ` Michael Albinus
2021-12-27 18:13 ` Sean Whitton
2021-12-27 18:22 ` Eli Zaretskii
2021-12-27 19:21 ` Sean Whitton
2021-12-27 19:35 ` Eli Zaretskii
2021-12-27 19:53 ` Sean Whitton
2021-12-27 19:37 ` Michael Albinus
2021-12-27 19:54 ` Sean Whitton
2021-12-28 8:58 ` Michael Albinus
2022-01-18 5:19 ` Sean Whitton
2022-01-18 9:49 ` Robert Pluim
2022-01-18 18:27 ` Sean Whitton
2022-01-18 14:45 ` Eli Zaretskii
2022-01-18 18:40 ` Sean Whitton
2022-01-18 19:38 ` Eli Zaretskii
2022-01-18 23:16 ` Sean Whitton
2022-01-19 7:34 ` Eli Zaretskii
2022-01-19 20:39 ` Sean Whitton
2022-01-20 6:53 ` Eli Zaretskii
2022-01-20 22:16 ` Sean Whitton
2022-01-21 6:54 ` Eli Zaretskii
2022-01-22 0:16 ` Sean Whitton
2022-01-18 18:42 ` Sean Whitton
2022-01-19 15:52 ` Michael Albinus
2022-01-19 20:54 ` Sean Whitton
2022-01-20 18:41 ` Michael Albinus
2022-01-20 22:17 ` Sean Whitton
2022-01-23 22:39 ` Sean Whitton
2022-01-24 9:55 ` Lars Ingebrigtsen
2022-01-24 14:18 ` Michael Albinus
2022-01-24 20:32 ` Sean Whitton
2022-01-24 20:44 ` Sean Whitton
2022-01-24 20:48 ` Lars Ingebrigtsen
2022-01-24 21:42 ` Sean Whitton
2022-01-24 21:51 ` Lars Ingebrigtsen
2022-01-24 22:48 ` Sean Whitton
2022-01-24 20:46 ` Lars Ingebrigtsen
2022-01-25 2:39 ` Jim Porter
2022-01-25 5:33 ` bug#53518: 29.0.50; em-extpipe breaks input of sharp-quoted Lisp symbols Sean Whitton
2022-01-25 8:50 ` Sean Whitton
2022-01-25 12:26 ` Lars Ingebrigtsen
2022-01-25 16:48 ` Sean Whitton
2022-01-26 5:38 ` Jim Porter
2022-01-26 13:13 ` Lars Ingebrigtsen
2022-01-25 18:14 ` Jim Porter
2022-01-25 20:01 ` Sean Whitton
2022-01-25 20:52 ` Jim Porter
2022-01-25 22:38 ` Sean Whitton
2022-01-25 8:54 ` bug#46351: 28.0.50; Add convenient way to bypass Eshell's own pipelining Michael Albinus
2022-01-25 18:22 ` Jim Porter
2021-12-27 18:26 ` Michael Albinus
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