Git and git-review

Git and git-review will be used to pull and push code from/to the ONOS repository, so they need to be installed. To streamline the code review process, it is highly recommended that contributors install git-review

sudo apt-get install git
sudo apt-get install git-review

For more info about git-review refer to this link

If you're using a Mac, you may need to manually upgrade the git-review package dependency. (git-review bug#1337701)

$ sudo pip install --upgrade setuptools
$ sudo pip install --upgrade git-review

Install Bazel

ONOS is a large project comprising of multiple relatively independent modules that lend themselves to be built in parallel, resulting in much faster. This is why the project chose to build via Bazel. Developers should install Bazel (0.27.0 at the time of writing) before they can build the project themselves.