阿里云源
# 替换brew.git
cd "$(brew --repo)"
git remote set-url origin https://mirrors.aliyun.com/homebrew/brew.git
# 替换homebrew-core.git
cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core"
git remote set-url origin https://mirrors.aliyun.com/homebrew/homebrew-core.git
# 刷新源
brew update
刷新源需要等待一段时间，如果等待时间过久可以尝试下切换网络再进行刷新。
还原配置
如果效果不满意，可以恢复默认。
git -C "$(brew --repo)" remote set-url origin https://github.com/Homebrew/brew.git
git -C "$(brew --repo homebrew/core)" remote set-url origin https://github.com/Homebrew/homebrew-core.git
git -C "$(brew --repo homebrew/cask)" remote set-url origin https://github.com/Homebrew/homebrew-cask.git
brew update