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From: Ken Mankoff <mankoff@gmail.com>
To: Max Nikulin <manikulin@gmail.com>
Cc: emacs-orgmode@gnu.org
Subject: Re: [PATCH] lisp/ob-screen.el: Support ~:var~ header args for babel blocks
Date: Sun, 26 Feb 2023 17:59:18 -0800	[thread overview]
Message-ID: <87k003swax.fsf@t480.home> (raw)
In-Reply-To: <0e841ec9-f770-4f4f-a5e6-eb15290ab8a7@gmail.com>

Hi Max,

On 2023-02-26 at 02:11 -08, Max Nikulin <manikulin@gmail.com> wrote:
> As to `org-babel-screen-test' perhaps the issue is additional newline
> added after random number. I have not tried stepping through the
> function in debugger though.

I haven't either. I'll see if I can figure out the issue with the help of the debugger.

> It seems top level headings were separated by single empty line.


> ;; Reuse the variable assignment code from ob-shell
>> +(defalias 'org-babel-variable-assignments:screen
>> +  'org-babel-variable-assignments:shell)
> Have you tried to compile using make? I expect a warning due to missed
> (require 'ob-shell).

Make did not complain about this, but did suggest mapcar -> mapc.

> P.S. My expectations based on the package name were that ob-screen is
> intended for running commands on remote hosts.

That too. But I also find it useful for running long commands on localhost without worrying about :async in emacs.

Another nice thing here is that this is, by default, session-based, and can be accessed outside of Org, while Bash blocks don't always play nice with sessions. I can, for example and all in Org Babel, spawn a screen session, ssh to a remote host, and then inject :var into the remote session. I find this quite powerful, and I haven't figured out how to do it with =BEGIN_SRC bash= or =BEGIN_SRC shell= blocks.

> Reading the code I noticed a couple of issues that may be fixed when
> you will decide to touch this file next time: -
> `org-babel-screen-session-socketname' does not respect
> `org-babel-screen-location' - `string-match' is used where it may be
> replaced by `string-match-p' since match data is not used.

Both fixed. Should these be separate patches (3 total), or two - one for the new feature, and one 'cleanup'?

> I noticed that ob-core besides org-babel-default-header-args:LANG uses
> org-babel-header-args:LANG. The latter is not defined in ob-screen,
> however I am unsure concerning its effect (completion?).

I don't understand this either.


  reply	other threads:[~2023-02-27  2:00 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-24 17:03 [PATCH] lisp/ob-screen.el: Support ~:var~ header args for babel blocks Ken Mankoff
2023-02-24 18:33 ` Ken Mankoff
2023-02-25  3:51   ` Max Nikulin
2023-02-25 15:14     ` Ken Mankoff
2023-02-25 15:19       ` Ken Mankoff
2023-02-25 16:05       ` Max Nikulin
2023-02-25 16:47         ` Ken Mankoff
2023-02-26 10:11           ` Max Nikulin
2023-02-27  1:59             ` Ken Mankoff [this message]
2023-02-28 10:40               ` Ihor Radchenko
2023-03-16  4:12                 ` Ken Mankoff
2023-03-16 10:22                   ` Ihor Radchenko
2023-03-16 15:09                     ` [PATCH v4] " Max Nikulin
2023-03-17 11:41                       ` Max Nikulin
2023-03-18 12:08                       ` Ihor Radchenko
2023-03-19 14:42                       ` Ken Mankoff
2023-03-21 14:12                         ` Max Nikulin
2023-03-02 13:38               ` [PATCH] " Max Nikulin
2023-02-26 12:18           ` Ihor Radchenko
2023-02-27  1:59             ` Ken Mankoff
2023-02-27 19:43               ` Ihor Radchenko

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