Ubuntu 14.04 获取android源码

From http://source.android.com/source/downloading.html

$curl http://commondatastorage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
$ chmod a+x ~/bin/repo
$ mkdir working-directory-name 
$ cd working-directory-name 
$ repo init -u git://android.git.kernel.org/platform/manifest.git