一、Mac默认大小写不敏感, 需要利用磁盘工具创建大小写敏感的映像

• 进入磁盘工具->文件->新建映像->空白映像(6.0系统编译需要70GB);

• 创建,如下图：

• 点击‘存储’完成创建;

二、命令行进入创建的映像

• 输入命令 hdiutil attach ~/android.dmg -mountpoint /Volumes/android 如下图:

• 进入路径 cd /Volumes/android 如下图:

三、下载源码,谷歌官网：http://source.android.com/source/downloading.html，国内镜像操作：http://www.tuicool.com/articles/6ZF7Nvy

Installing Repo

• Make sure you have a bin/ directory in your home directory and that it is included in your path:

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

• Download the Repo tool and ensure that it is executable:

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

Initializing a Repo client

• Create an empty directory to hold your working files. If you're using MacOS, this has to be on a case-sensitive filesystem. Give it any name you like:

    $ mkdir WORKING_DIRECTORY
    $ cd WORKING_DIRECTORY
  

• Run repo init to bring down the latest version of Repo with all its most recent bug fixes. You must specify a URL for the manifest, which specifies where the various repositories included in the Android source will be placed within your working directory.

    $ repo init -u https://android.googlesource.com/platform/manifest
  

  To check out a branch other than "master", specify it with -b. For a list of branches, see Source Code Tags and Builds.

    $ repo init -u https://android.googlesource.com/platform/manifest -b android-6.0.0_r2
  

Downloading the Android Source Tree

• To pull down the Android source tree to your working directory from the repositories as specified in the default manifest, run

    $ repo sync