[repo] 安裝repo

安裝repo

1). 設置環境變數
mkdir ~/bin
PATH=~/bin:$PATH

2). 下載repo
curl https://dl-ssl.google.com/dl/googlesource/git-repo/repo > ~/bin/repo

3). 將repo設為可執行
chmod a+x ~/bin/repo

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Initializing a Repo client

1). 創建資料夾
mkdir WORKING_DIRECTORY
cd WORKING_DIRECTORY

2).initial一個repo cilent
repo init -u https://android.googlesource.com/platform/manifest

3). 切換到master branch
repo init -u https://android.googlesource.com/platform/manifest -b android-4.0.1_r1

4). 同步
repo sync