在本地克隆后获取安装脚本。
git clone https://mirrors.tuna.tsinghua.edu.cn/git/ohmyzsh.git
cd ohmyzsh/tools
REMOTE=https://mirrors.tuna.tsinghua.edu.cn/git/ohmyzsh.git sh install.sh
git -C $ZSH remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/ohmyzsh.git
git -C $ZSH pull