To get started with Android/CyanogenMod, you'll need to get familiar with Git and Repo.
To initialize your local repository using the CyanogenMod trees, use a command like this:
repo init -u git://github.com/razorbladex401/android.git -b cm-10.2
Then to sync up:
repo sync
This is based on CyanogenMod repo. For more info go to CyanogenMod. This repo is for building CM10.2 for Hardkernel Odroidx2.