This page is for tracking anything related with the 2019 GNU Guix/Guile conference and hackathon on Jan. 31st and Feb. 1st—right before FOSDEM2019 and the minimalistic language devroom.

GNU Guix Days

Annual GNU Guix (un)conference. This event is a FOSDEM 2019 fringe event.

Why?

GNU Guix is growing rapidly and has gone from a software packaging system to a full tool stack aimed at reproducible software deployment and development. GNU Guix is a toolkit that allows developers to integrate reproducible software deployment into their applications—as opposed to leaving it up to the user. GNU Guix is based on the GNU Guile programming language which makes it a very versatile and hackable (in the good sense) environment.

When?

Thursday 31st of January and Friday 1st of February, 2019, the two days before FOSDEM.

Coffee at 9:30AM, and starting at 10AM.

Where?

Institute of Cultural Affairs (ICAB) Rue Amedee Lynen 8 1210 Brussels (map), Belgium.

Programme

We will have some talks in the morning and hacking and discussions the rest of the day. Two days of GNU Guix bliss.

The event targets an audience of Guix developers and users.

In pure “unconference” style, the program will be made by participants as we go, with hands-on sessions organized in sub-groups. Possible session topics that have already been proposed include:

GNU Guix road map
GNU Guix online documentation
Mes and bootstrapping
Reproducibility project
Alternative target architectures (ARM etc.)
Developing workflows (GNU Guix and GNU Workflow Language)
Support for D in GNU Guix
Demonstration and explanation of The Perfect Setup (Emacs, Geiser, Magit)
Demonstration and live-hacking of Next browser + introduction to the code base
Better build systems for JVM languages in GNU Guix (support maven, sbt, gradle, ...)
Reproducible JDK
The GuixSD installer
your topic?

Code of conduct

Be aware that attendees implicitely abide by the code of conduct as stated by FOSDEM.

How to register?

Add your name here and/or send a message to Manolis <manolis837@gmail.com> or Pjotr <pjotr.public12@thebird.nl>. Please email us if you would need on-site childcare to be able to attend.

Note: there is a maximum of 40 participants.

Participants

Ludovic Courtès
Jonathan Brielmaier
Tobias (nckx) Geerinckx-Rice
Julien Lepiller
Chris Webber
Ricardo Wurmus
Pjotr Prins
Manolis Ragkousis
Alex Sassmannshausen
Andy Wingo
Christopher Baines
Gábor Boskovits
Clément Lassieur (Friday only)
Mathieu Othacehe (Friday only)
Pierre Neidhardt
Björn Höfling
Leo Famulari
Jan (janneke) Nieuwenhuizen
Efraim Flashner
Danny Milosavljevic
Mark Meyer
Tobias "Tomoko" Platen
(Marco van Hulten—arriving afternoon of 2nd day)
Laura Lazzati
Mike Gran
Chris Marusich
Jelle Licht
Andreas Enge
Simon Tournier
Danny Milosavljevic
Andy Patterson
Profpatsch
Christian Jaeger
Matias Jose
Adu O'Hara

(add your name above this line)

Costs

Attendance is free. We will ask a voluntary contribution for consumptions.

Dinner

Thursday: Mont Liban, map
Friday: Santorini, map

Sessions Outcome

Maven Build System

Maven uses plugins to implement build phases. We need to build at least a small set of plugins with our ant-build-system.
One problem is that the plugin's jar file not only contains classes but also a meta-file describing the plugins interface.
We can try to build this metafile with the maven-plugins-tools-generators, see [1].
When we actually use the maven-build-system, it needs to generate a ".m2/repository", artificially created from the package inputs.
In order to make life with this step easier, we decided to modify the ant-build-system: It should already create its part of the system:
I.e. when the pachage is called "org.myproject:myartifact:1.0.3", we should generate the path "org/myproject/myartifact/1.0.3/myartifact-1.0.3.jar" and symlink it to the actual jar-file the ant-build-system generated.
We should modify the ant-build-system to copy/generate a pom.xml, either into the jar-file and/or besides it.

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Group: Guix/FOSDEM2019