Android源码下载

$ mkdir ~/bin
$ PATH=~/bin:$PATH

$ curl https://storage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
$ chmod a+x ~/bin/repo

$ mkdir WORKING_DIRECTORY
$ cd WORKING_DIRECTORY

$ repo init -u https://android.googlesource.com/platform/manifest[/code] 
$ repo init -u https://android.googlesource.com/platform/manifest -b android-4.0.1_r1


$ repo sync