bug#46532: plantuml in pure environment does not find X11

bug#46532: plantuml in pure environment does not find X11

[Dr. Arne Babenhauserheide]

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Dear Guix hackers,

when installing plantuml in a pure environment, it throws an java.awt.AWTError: Can't connect to X11 window server using ':1' as the value of the DISPLAY variable.

To reproduce:

$ guix environment --ad-hoc --pure plantuml -- plantumlNo protocol specified
Exception in thread "main" java.awt.AWTError: Can't connect to X11 window server using ':1' as the value of the DISPLAY variable.
	at sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)
	at sun.awt.X11GraphicsEnvironment.access$200(X11GraphicsEnvironment.java:65)
	at sun.awt.X11GraphicsEnvironment$1.run(X11GraphicsEnvironment.java:115)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.awt.X11GraphicsEnvironment.<clinit>(X11GraphicsEnvironment.java:74)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:264)
	at java.awt.GraphicsEnvironment.createGE(GraphicsEnvironment.java:103)
	at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:82)
	at java.awt.image.BufferedImage.createGraphics(BufferedImage.java:1181)
	at net.sourceforge.plantuml.FileFormat.<clinit>(FileFormat.java:93)
	at net.sourceforge.plantuml.Option.<init>(Option.java:97)
	at net.sourceforge.plantuml.Run.main(Run.java:93)

When I leave out --pure, it works, so I assume that a dependency on X11
might be missing.

Best wishes,
Arne
-- 
Unpolitisch sein
heißt politisch sein
ohne es zu merken

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bug#46532: plantuml in pure environment does not find X11

[Maxime Devos]

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On Mon, 2021-02-15 at 13:52 +0100, Dr. Arne Babenhauserheide wrote:
> Dear Guix hackers,
> 
> when installing plantuml in a pure environment, it throws an java.awt.AWTError: Can't connect to X11 window server using ':1' as the value of the DISPLAY variable.

Is the environment variable XAUTHORITY set?
Compare the value inside the environment and outside the environment.

Perhaps "XAUTHORITY" should be added to %precious-variables in
guix/scripts/environment.scm.  An untested patch is attached,
I'll test it now.

Greetings,
Maxime.

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From 7eac4f5a427fb094865ece58c3509606264884b0 Mon Sep 17 00:00:00 2001
From: Maxime Devos <maximedevos@telenet.be>
Date: Mon, 15 Feb 2021 16:07:37 +0100
Subject: [PATCH] scripts: preserve XAUTHORITY in pure environments

(XXX untested)

Fixes: <https://issues.guix.gnu.org/46532>

* guix/scripts/environment.scm
  (%precious-variables): add 'XAUTHORITY'
---
 guix/scripts/environment.scm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/guix/scripts/environment.scm b/guix/scripts/environment.scm
index f4d12f89bf..656294d29d 100644
--- a/guix/scripts/environment.scm
+++ b/guix/scripts/environment.scm
@@ -53,7 +53,7 @@
 
 ;; Protect some env vars from purification.  Borrowed from nix-shell.
 (define %precious-variables
-  '("HOME" "USER" "LOGNAME" "DISPLAY" "TERM" "TZ" "PAGER"))
+  '("HOME" "USER" "LOGNAME" "XAUTHORITY" "DISPLAY" "TERM" "TZ" "PAGER"))
 
 (define %default-shell
   (or (getenv "SHELL") "/bin/sh"))
-- 
2.30.0


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bug#46532: plantuml in pure environment does not find X11

[Maxime Devos via web]

self-proposed patch works for me

bug#46532: plantuml in pure environment does not find X11

[Efraim Flashner]

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On Mon, Feb 15, 2021 at 01:52:42PM +0100, Dr. Arne Babenhauserheide wrote:
> Dear Guix hackers,
> 
> when installing plantuml in a pure environment, it throws an java.awt.AWTError: Can't connect to X11 window server using ':1' as the value of the DISPLAY variable.
> 
> To reproduce:
> 
> $ guix environment --ad-hoc --pure plantuml -- plantumlNo protocol specified
> Exception in thread "main" java.awt.AWTError: Can't connect to X11 window server using ':1' as the value of the DISPLAY variable.
> 	at sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)
> 	at sun.awt.X11GraphicsEnvironment.access$200(X11GraphicsEnvironment.java:65)
> 	at sun.awt.X11GraphicsEnvironment$1.run(X11GraphicsEnvironment.java:115)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at sun.awt.X11GraphicsEnvironment.<clinit>(X11GraphicsEnvironment.java:74)
> 	at java.lang.Class.forName0(Native Method)
> 	at java.lang.Class.forName(Class.java:264)
> 	at java.awt.GraphicsEnvironment.createGE(GraphicsEnvironment.java:103)
> 	at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:82)
> 	at java.awt.image.BufferedImage.createGraphics(BufferedImage.java:1181)
> 	at net.sourceforge.plantuml.FileFormat.<clinit>(FileFormat.java:93)
> 	at net.sourceforge.plantuml.Option.<init>(Option.java:97)
> 	at net.sourceforge.plantuml.Run.main(Run.java:93)
> 
> When I leave out --pure, it works, so I assume that a dependency on X11
> might be missing.
> 

I have the following scriptlet that someone shared for running eolie in
a container. I'm guessing it could be modified to run platuml if needed.


-- 
Efraim Flashner   <efraim@flashner.co.il>   אפרים פלשנר
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guix environment \
--preserve='^DISPLAY$' --container --network \
--expose=/etc/machine-id \
--expose=/etc/ssl/certs/ \
--share=$HOME/.local/share/eolie/=$HOME/.local/share/eolie/ \
--share=/tmp/.X11-unix/=/tmp/.X11-unix/ \
--share=$HOME/.Xauthority=$HOME/.Xauthority \
--ad-hoc eolie nss-certs dbus --  eolie

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Running eolie in a container (was: bug#46532: plantuml in pure environment…)

[zimoun]

Hi Efraim,

On Tue, 16 Feb 2021 at 11:32, Efraim Flashner <efraim@flashner.co.il> wrote:

> I have the following scriptlet that someone shared for running eolie in
> a container. I'm guessing it could be modified to run platuml if needed.

> guix environment \
> --preserve='^DISPLAY$' --container --network \
> --expose=/etc/machine-id \
> --expose=/etc/ssl/certs/ \
> --share=$HOME/.local/share/eolie/=$HOME/.local/share/eolie/ \
> --share=/tmp/.X11-unix/=/tmp/.X11-unix/ \
> --share=$HOME/.Xauthority=$HOME/.Xauthority \
> --ad-hoc eolie nss-certs dbus --  eolie

From the manual [1],

--8<---------------cut here---------------start------------->8---
guix environment --preserve='^DISPLAY$' --container --network \
  --expose=/etc/machine-id \
  --expose=/etc/ssl/certs/ \
  --share=$HOME/.local/share/eolie/=$HOME/.local/share/eolie/ \
  --ad-hoc eolie nss-certs dbus --  eolie
--8<---------------cut here---------------end--------------->8---

is it not enough for eolie?  Is the 2 lines

   --share=/tmp/.X11-unix/=/tmp/.X11-unix/ \
   --share=$HOME/.Xauthority=$HOME/.Xauthority \

really required?  If yes, the manual should be updated. :-)

1: <https://guix.gnu.org/manual/devel/en/guix.html#Invoking-guix-environment>


All the best,
simon