From: Max Nikulin <manikulin@gmail.com>
To: emacs-orgmode@gnu.org
Subject: Re: [PATCH] ob-plantuml: Allow setting PlantUML args for jar file
Date: Wed, 19 Jan 2022 23:54:43 +0700 [thread overview]
Message-ID: <ss9fol$cmi$1@ciao.gmane.io> (raw)
In-Reply-To: <87lezdnpcp.fsf@localhost>
On 18/01/2022 20:30, Ihor Radchenko wrote:
> Dejan Josifović writes:
>
>> But, since ob-plantuml already had variable for arguments for executable
>> it fells natural to me to have customizable variables for when using
>> jar. These headers are of course easier, but the user would have to
>> write them on each source block to achieve something that should be
>> globally customizable (like charset).
>
> FYI, you can customise any header arg globally. See manual page 16.3
> Using Header Arguments.
info "(org) Using Header Arguments"
https://orgmode.org/manual/Using-Header-Arguments.html
> #!/bin/bash
> gjl_package=plantuml
> gjl_jar="plantuml.jar"
> source /usr/share/java-config-2/launcher/launcher.bash
It seems with with the suggested patch both -Djava.awt.headless=true and
-headless are passed to jar. I suspect it is either redundant or
launcher.bash converts "-headless" to "-Djava.awt.headless=true". In
ubuntu there is no room for special treatment of "-headless" option by
the shell wrapper:
--- >8 ----
if [ -n "${JAVA_HOME}" ] && [ -x "${JAVA_HOME}/bin/java" ] ; then
JAVA="${JAVA_HOME}/bin/java"
elif [ -x /usr/bin/java ] ; then
JAVA=/usr/bin/java
else
echo Cannot find JVM
exit 1
fi
$JAVA -jar -Djava.net.useSystemProxies=true
/usr/share/plantuml/plantuml.jar ${@}
---- 8< ---
> I feel that running headless mode in the ob-plantuml is deliberate.
https://plantuml.com/faq
"Basically, this is because PlantUML needs to have access to some
graphical resources"
I have no idea what is actually affected.
Which peace of code (java or plantuml.jar) handles "-headless" option?
This question affects decision if jar and executable wrapper modes may
share same list of arguments. Plantuml site recommends namely
-Djava.awt.headless=true. Anyway with or without the patch,
"-Djava.awt.headless=true" is added unconditionally in the jar mode. I
would revert that patch and either add it to java header argument or to
a new defcustom.
Are there cases when :cmdline header argument is not enough and extra
custom variable org-plantuml-args (org-plantump-executable-args) should
be used?
Actually I have realized that I do not understand why babel code uses
mix of defcustom and header arguments. The latter are more flexible and
may be adjusted per source block. On the other hand they may be set in
init file. Even java executable and path to jar file may be obtained
from header arguments.
next prev parent reply other threads:[~2022-01-19 17:11 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
2022-01-17 17:19 ` Dejan Josifović
2022-01-18 13:30 ` Ihor Radchenko
2022-01-19 16:54 ` Max Nikulin [this message]
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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