What is Repo and Why does Google use it?

Question

When I wanted to get Android source code, I knew that I have to use \"repo\". So what is repo? Why do they use repo and not just use GIT?, and is there a GUI for repo that e

Answer 1

repo sync has various useful options:

-f recovers from disconnects

-c just uploads the branch you asked for

-j <#CPUS> speeds up the sync by increasing the number of cpus used by the command