参考:
https://mirror.tuna.tsinghua.edu.cn/help/homebrew/
Homebrew 镜像使用帮助
注:该镜像是 Homebrew 的 formula 索引的镜像（即 brew update 时所更新内容）。本镜像站同时提供 Homebrew 二进制预编译包的镜像，请参考Homebrew bottles 镜像使用帮助。
替换现有上游
cd "$(brew --repo)"
git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/brew.git
cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core"
git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/homebrew-core.git
brew update
使用homebrew-science或者homebrew-python
cd "$(brew --repo)/Library/Taps/homebrew/homebrew-science"
git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/homebrew-science.git
cd "$(brew --repo)/Library/Taps/homebrew/homebrew-python"
git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/homebrew-python.git
brew update
