Alternative to prawn-gmagick?

[Baerbeisser]

Asciidoctor PDF 2.3.15 using Asciidoctor 2.0.22 [https://asciidoctor.org]
Runtime Environment (ruby 3.0.6p216 (2023-03-30 revision 23a532679b) [x86_64-linux]) (lc:UTF-8 fs:UTF-8 in:UTF-8 ex:UTF-8)
gem v. 3.3.25

Hi,

My project contains some gif, so they don't get embedded in pdf and i get a warning:

asciidoctor: WARNING: GIF image format not supported. Install the prawn-gmagick gem or convert Birds are super-efficient breathers - Science World-Dateien/how-we-breathe.gif to PNG.

Yet i can't compile prawn, be it with gem install prawn-gmagick nor manually via git clone.

compiling image.c
image.c:3:10: fatal error: wand/magick_wand.h: No such file or directory
    3 | #include <wand/magick_wand.h>
      |          ^~~~~~~~~~~~~~~~~~~~
compilation terminated.
make: *** [Makefile:246: image.o] Error 1

I guess that could be fixed but the repo had its last activity 5 years ago (guess it was the thing with alpha transparency blowing up)

What is the plan here, someone wants to pick prawn-gmagick up again, is an alternative planned or will gif and tiff support be removed (warning should be changed/removed then) ?

[mojavelinux]

There is no other alternative for adding gif support to Asciidoctor PDF than to use prawn-gmagick. I cannot comment on the state of that project as it is not part of the Asciidoctor organization. You could ask that project directly.

In the future, please ask questions like this in the project chat at https://chat.asciidoctor.org. The issue tracker is not a support portal, as stated on the get help page in the docs: https://docs.asciidoctor.org/about/get-help/#issue-tracker

[Baerbeisser]

Ok, again in short; prawn-gmagick is abandoned for at least 5 years and doesn't compile anymore. I ask how you want to proceed: drop support for the formats asciidoctor-pdf uses prawn-gmagick for or use another solution. From your answer, i guess the first? No way to use cli imagemagick or something?

I think this is clearly a related technical issue and not a support question.

I mean, i get that you get a lot of non-issues all day here.

[mojavelinux]

The released version of prawn-gmagick works with Asciidoctor PDF and we run tests every night to verify that. Until that release presents a problem, I see no reason to look for another solution. If you think another solution is warranted, you're welcome to fork that project and volunteer to maintain it. It's also possible to extend Prawn to add support for additional image formats it other ways, just as prawn-gmagick does. But it's not the concern of this project as it is an integration for a legacy image format (PNG is the preferred format).

As I've already stated, if this discussion is going to be continued, it should happen in the project chat.