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 enables me to pause/resume syncing, because every time I get disconnected occasionally it seems that repo starts syncing from the beginning!

Answer 1

Repo and git – what they are, what they are for – is explained on source.android.com

To work with the Android code, you
will need to use both Git and Repo.

Git is an open-source version-control system designed to
handle very large projects that are
distributed over multiple
repositories. In the context of
Android, we use Git for local
operations such as local branching,
commits, diffs, and edits.

Repo is a tool that we built on top of Git. Repo helps us manage the
many Git repositories, does the
uploads to our revision control
system, and automates parts of the
Android development workflow. Repo is
not meant to replace Git, only to make
it easier to work with Git in the
context of Android. The repo command
is an executable Python script that
you can put anywhere in your path.

There’s no GUI for Repo, as far as I can tell, but there’s quite a bit of guidance on the site above for controlling what Repo is doing from the command line.