So you want to start work on I2P? Great! Here's a quick guide to getting started on contributing to the website or the software, doing development or creating translations.
Not quite ready for coding? Try getting involved first.
Basic development on the I2P router or the embedded applications uses Java as the main development language. If you don't have experience with Java, you can always have a look at Thinking in Java.
Getting the I2P code
For development on the I2P router or the embedded applications, there are two ways to get the source code:
The new way: Git
I2P now has official Git services and accepts contributions via Git at our own gitlab. Trac issues have also been migrated to gitlab, however Trac still available for now. Two-way syncing of issues between Gitlab and Github is a work-in-progress.
- Inside I2P - (http://git.idk.i2p)
- Outside I2P - (https://i2pgit.org)
git clone https://i2pgit.org/i2p-hackers/i2p.i2p.git
The read-only mirror is also still available at github.
- GitHub mirror:
git clone https://github.com/i2p/i2p.i2p.git
To compile the code, you need the Sun Java Development Kit 6 or higher, or equivalent JDK (Sun JDK 6 strongly recommended) and Apache ant version 1.7.0 or higher. If you go are working on the main I2P code, you can go into the i2p.i2p directory and run 'ant' to see the build options.
To build or work on console translations, you need the xgettext, msgfmt, and msgmerge tools from the GNU gettext package.
For development on new applications, see the application development guide.
Making the results available
See the bottom of the licenses page for commit privilege requirements. You need these to put code into i2p.i2p (not required for the website!).
The developers hang around on IRC. They can be reached on the Freenode network, OFTC, and on the I2P internal networks. The usual place to look is #i2p-dev. Join the channel and say hi! We also have additional guidelines for regular developers.
Website and router console translators: See the New Translator's Guide for next steps.
I2P is open source software that is mostly developed using open sourced toolkits. The I2P project recently acquired a license for the YourKit Java Profiler. Open source projects are eligible to receive a free license provided that YourKit is referenced on the project web site. Please get in touch if you are interested in profiling the I2P codebase.
YourKit is kindly supporting open source projects with its full-featured Java Profiler. YourKit, LLC is the creator of innovative and intelligent tools for profiling Java and .NET applications. Take a look at YourKit's leading software products: YourKit Java Profiler and YourKit .NET Profiler.