Repo Android Branch and Build Cupcake

1. Repo installation, initialization & configuration
(supposed we are on the /home/my_name/Android_space/
  a. get repo
         mkdir bin
         export $PATH to append /home/my_name/Android_space/bin
         curl > ./bin/repo
         chmod a+x ./bin/repo
  b. init repo for Android 'cupcake' branch
         make cupcake;
         cd cupcake
         repo init -u git://android.git.kernel.org/platform/manifest.git -b cupcake
         repo
      (during this period, you will be prompted to add repo user_name and E-mail address and then sync the local and remote repo repository)

2. Setup Build Environment
        . ./build/envsetup.sh
        lunch 1
        make V=1