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From: Max Nikulin <manikulin@gmail.com>
To: "Ihor Radchenko" <yantar92@gmail.com>,
	"Dejan Josifović" <www.paranoidtimes@gmail.com>
Cc: emacs-orgmode@gnu.org
Subject: Re: [PATCH] ob-plantuml: Allow setting PlantUML args for jar file
Date: Sun, 16 Jan 2022 14:53:22 +0700	[thread overview]
Message-ID: <b5cf1602-4f5a-fe8d-c558-d1587723f97a@gmail.com> (raw)
In-Reply-To: <87y23hr045.fsf@localhost>


Disclaimer: I am neither plantuml nor ditaa user, so my comments may 
have no sense.

On 15/01/2022 13:20, Ihor Radchenko wrote:
> Dejan Josifović writes:
>> Comparing ob-plantuml.el and plantuml-mode.el files I found what is the
>> problem. plantuml-mode has a customizable variable for specifying
>> arguments when using PlantUML from jar (plantuml-jar-args (list
>> "-charset" "UTF-8" ). The charset arguments is what is needed for
>> the images to render correctly (I confirmed it by implementing it locally).
>> I was wondering why such variable doesn't exist in ob-plantuml.

Dejan, have you tried :java or :cmdline header arguments?

> Even though I was unable to reproduce your problem (most likely because
> my system is different), it sounds like a good idea to allow users to
> customise jar args as well.

I agree that arguments should be customizable when the application is 
launched from jar, but there are already :java argument that is inserted 
before jar file and :cmdline argument that is appended after it.

Another consideration is that ob-ditaa and ob-plantuml should use 
similar set of header arguments for additional parameters. They (and 
third-party packages) may even share some parameters related to java 
executable location and arguments for tuning of java VM (memory limits, 

> See the attached patch. It appears that we can simply carry over the
> executable args to jar (but please test it on other systems!)

> -				(t (list java
> -					 "-Djava.awt.headless=true"

(unrelated to this patch) The line above is a recent change, and I do 
not see a reason why it is not added in a customizable way through 
appending (:java "-Djava.awt.headless=true") to 
`org-babel-default-header-args:plantuml'. Maybe I just missed something 
stupid since I have not tried it.

> -					 "-jar"
> -					 (shell-quote-argument (expand-file-name org-plantuml-jar-path))))))
> +				(t `(,java
> +				     "-Djava.awt.headless=true"
> +				     "-jar"
> +				     ,(shell-quote-argument (expand-file-name org-plantuml-jar-path))
> +                                     ,@org-plantuml-args))))

Is there a case when some arguments are suitable for dedicated binary 
but should be avoided for jar (when a user has both executable from 
system package and manually downloaded jar having newer version)? It may 
be a reason to have separate variables (or header arguments).

I suppose, a part of problem that there are no plantuml and ditaa users 
and subscribers of this list who are ready to discuss code of related 
babel packages.

  reply	other threads:[~2022-01-16  7:54 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-03 22:56 ob-plantuml: Proposal to add 'jar-args' customizable variable Dejan Josifović
2022-01-06 19:53 ` Dejan Josifović
2022-01-07  4:38   ` Ihor Radchenko
2022-01-08 13:14     ` Dejan Josifović
2022-01-09 17:46 ` Andy Moreton
2022-01-10 16:00   ` Dejan Josifović
2022-01-15  6:20 ` [PATCH] ob-plantuml: Allow setting PlantUML args for jar file Ihor Radchenko
2022-01-16  7:53   ` Max Nikulin [this message]
2022-01-17 17:19     ` Dejan Josifović
2022-01-18 13:30       ` Ihor Radchenko
2022-01-19 16:54         ` Max Nikulin
2022-01-21 12:48           ` Ihor Radchenko
2022-01-23 16:50             ` Max Nikulin
2022-05-08  6:48               ` Ihor Radchenko
2022-01-21 22:22           ` Dejan Josifović

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