Homebrew 切换国内源

`中国科大`

# 修改 brew.git
> cd "$(brew --repo)" && git remote set-url origin https://mirrors.ustc.edu.cn/brew.git

# 修改 homebrew-core.git
> cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core" && git remote set-url origin https://mirrors.ustc.edu.cn/homebrew-core.git

# 修改 homebrew-bottles
> echo 'export HOMEBREW_BOTTLE_DOMAIN=https://mirrors.ustc.edu.cn/homebrew-bottles' >> ~/.bash_profile && source ~/.bash_profile

# 立刻生效
> brew update

`清华大学`

# 修改 brew.git
> cd "$(brew --repo)" && git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/brew.git

# 修改 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

# 修改 homebrew-bottles
> echo 'export HOMEBREW_BOTTLE_DOMAIN=https://mirrors.tuna.tsinghua.edu.cn/homebrew-bottles' >> ~/.bash_profile && source ~/.bash_profile

# 立刻生效
> brew update

# 查看（诊断） brew 状态
> brew doctor

# 重置 brew.git
> cd "$(brew --repo)" && git fetch && git reset --hard origin/master

# 切回官方 brew.git
> cd "$(brew --repo)" && git remote set-url origin https://github.com/Homebrew/brew.git

# 重置 homebrew-core.git
> cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core" && git fetch && git reset --hard origin/master

# 切回官方 homebrew-core.git
> cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core" && git remote set-url origin https://github.com/Homebrew/homebrew-core.git

# 立刻生效
> brew update

其他操作

# 升级 brew
> brew upgrade

# 清理 brew
> brew cleanup