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)

Mac 修改brew源