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
清华源
# 替换brew.git
cd "$(brew --repo)"
git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/brew.git
# 替换homebrew-core.git
cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core"
git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/homebrew-core.git
# 刷新源
brew update
需要注意的是，更新可能会很长时间，请耐心等待。
查看源地址
% cd "$(brew --repo)"
% git remote -v
origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/brew.git (fetch)
origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/brew.git (push)
% cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core"
% git remote -v
origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/homebrew-core.git (fetch)
origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/homebrew-core.git (push)