Subject: [GSOC] Welcoming our GSoC students

This email is to be sent on the list in welcoming the recently accepted GSoC students

Hello community, Hello Google Summer of Code students,

First of all, congratulations on your applications and your activity during the selection period, and welcome in the XWiki development team.

Before guiding the accepted students to their next steps, we'd like to thank again all those who showed interest in XWiki for this Summer of Code. We had a lot of good applications this year, with professional approaches and interesting ideas, and it was very difficult to choose. Unfortunately, some very good students, with great potential, were not accepted. So, to those interested in getting involved anyway, without Google's implication, I renew the invitation to put your ideas in practice under the guidance of the community. Even though the money will be missing, you can still take advantage of the other GSoC benefits: learning new things, gaining experience, earning recognition, etc [1]. If you would like to do that, please let us know by replying to this mail.

For the accepted students, here are some getting started hints:

Community bonding period

According to the program timeline [2], the next month (until - May 29th) is to be used for community bonding.

The first thing to do, sometime this week, is to present yourself and your project on the dev list, so that everyone knows who you are and
what to expect from you (a precondition is to be subscribed to the list, which you *need to do ASAP* if you haven't already).

Also, you should continue getting acquainted with the code, the practices and the developers. Please make sure you all read and understand the following - very useful - documents:
- [3]
- [4]
- [5]


We prefer open mentorship. While your assigned mentor is the one officially in charge with your guidance, almost all interaction should be done 'in the open' as much as possible, on the IRC channel or on the mailing list. You should choose the communication medium according to the importance of the matters to be discussed: naturally, the less important issues are to be discussed on IRC, while the design decisions, important progress announcements and testing/feedback requests go on the list. This way, the community is informed on the evolution of your project, and other developers can come up any time with useful ideas and suggestions. Moreover, if your mentor is hit by a bus (the bus factor [6]), another developer can take his place with little effort.


Sitting alone in your room, working secretly on your project is definitely a bad approach. However, please keep in mind that too much communication can also be harmful, as it distracts the others from their own work. You need to be able to communicate just right:
- provide meaningful information about your progress,
- ask the community's opinion on non-trivial design or implementation decisions
- avoid wasting a lot of time on a problem, when a more experienced developer (or a student that fought the same problem) could quickly provide you an answer; however, do try to find the answer yourself at first.

Wrong: "Where do I start? What do I do now? And how do I do that? Is this good? It doesn't work, help me!"

Right: "Since a couple of hours ago I get a strange exception when building my project, and googling for a solution doesn't seem to help. Looking at the error, I think that there's a wrong setting for the assembly plugin, but nothing I tried works. Can someone please take a look?"

Subscribe to the devs list (if you didn't do this already), and start monitoring the discussions. It is also recommended to subscribe to the users list, but not mandatory. The notifications list is a little too high volume and technical for the moment, but it is a great knowledge

Development process

The project's lifecycle is NOT design -> implementation -> testing -> documentation. [7]

We invite you to adopt a test driven development [8][9][10] approach and to experience agile development [11]. After the first coding week, you must have some code that works. It won't do much, of course, but it will be the seed of your project. Every functionality will be validated by tests. The code must be properly tested and commented at the time of the writing (don't think you'll do that afterwards, because in most cases you won't).

Since our code is hosted on GitHub [12], you should register an account there and fork some xwiki repositories, so that you can try to build XWiki from sources, and be able to contribute bugfixes. We'll add you to the xwiki-contrib organization [13], and we'll create dedicated repositories for each project. We encourage you to do at least weekly commits (ideally, if you are well organized, you should be able to commit code that works daily, so try to aim at daily commits). This way, the code can be properly reviewed, and any problems can be detected before they grow into something too difficult to fix. One big code blob committed at the end, no matter how good it may seem, is a failure at several levels.

A simple way of having something functional in the first week is to prepare the maven build for your modules, which will give you the first unit test for the first class.

Next steps, in a nutshell

- Get more familiar with the code and development process and try to master Maven, JUnit, Selenium, component driven development, ...
- Continue fixing a few small issues, chosen so that they are related to your project. You can ask on IRC for help selecting good issues, or you can pick from the (non-comprehensive) list of easy issues [14]
-- This will help you get more familiar with the code your project needs to interact with.
- Refine and organize the ideas concerning your project (you can use the Drafts space [15]), and write several use case scenarios.
- Start writing the first piece of code for your project.

At the end of the community bonding period, you should have a clear vision of the project, well documented on the wiki, you should have the build infrastructure ready, and you should be pretty familiar with the existing code you will need to interact with. And, of course, you should be familiar with the community and the way we communicate.

Good luck, and may we all have a great Summer of Code!

-The XWiki Development Team


Created by Thomas Mortagne on 2019/04/08 09:43

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