Galaxy Zoo is Open Source

It’s always a good feeling a be making a codebase open and today it’s time to push the latest version of Galaxy Zoo into the open. As I talked about in my blog post a couple of months ago, making open source code the default for Zooniverse is good for everyone involved with the project.

One significant benefit of making code open is that from here on out it’s going to be much easier to have Zooniverse projects translated into your favourite language. When we build a new project we typically extract the content into something called a localisation file (or localization if you prefer your en_US) which is basically just a plain text file that our application uses. You can view that file for our (US) English translation file here and it looks a little like this:

En

So how do I translate Galaxy Zoo?

I’m glad you asked… It turns out there’s a feature built into the code-hosting platform we’re using (called GitHub) which allows you to basically make your own copy of the Galaxy Zoo codebase. It’s called ‘forking’ and you can read much more about it here but all you need to do to contribute is fork the Galaxy Zoo code repository, add in your new translation file and (there’s a handy script that will generate a template file based on the English version), translate the English values into the new language and send the changes back up to GitHub.

Once you’re happy with the new translation and you’d like us to try it out you can send us a ‘pull request’ (details here). If everything looks good then we can review the changes and pull the new translation into the main Galaxy Zoo codebase. You can see an example of a pull request from Robert Simpson that’s been merged in here.

So what next?

This method of translating projects is pretty new for us and so we’re still finding our way a little here. As a bunch of developers it feels great to be using the awesome collaborative toolset that the GitHub platform offers to open up code and translations to you all.

Cheers

Arfon

4 responses to “Galaxy Zoo is Open Source”

  1. Johan says :

    I don’t really get the github and or the script to create a translation file or how to fork it and stuff.
    But if someone can mail me the english json file (or any format) with the english formation and explain me what not to do (like use quotes in json format) and or how to escape those characters if needed. I’d be happy to make a dutch translation of the file.

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