Mac上使用brew update会卡住的问题

brew 默认的源是 Github，会非常慢，建议换为国内的源。推荐中科大的镜像源，比较全面.

Homebrew 源代码仓库

替换源地址:
cd”$(brew –repo)”git remote set-url origin https://mirrors.ustc.edu.cn/brew.git
重置为官方地址:
cd”$(brew –repo)”git remote set-url origin https://github.com/Homebrew/brew.git
Homebrew Bottles
Homebrew 预编译二进制软件包
在运行 brew, 前设置环境变量 HOMEBREW_BOTTLE_DOMAIN，值为https://mirrors.ustc.edu.cn/homebrew-bottles
替换源地址:
bash:
echo’export HOMEBREW_BOTTLE_DOMAIN=https://mirrors.ustc.edu.cn/homebrew-bottles' >> ~/.bash_profilesource ~/.bash_profile
zsh:
echo’export HOMEBREW_BOTTLE_DOMAIN=https://mirrors.ustc.edu.cn/homebrew-bottles' >> ~/.zshrcsource ~/.zshrc
Homebrew Core
Homebrew 核心软件仓库
替换源地址:
cd”$(brew –repo)/Library/Taps/homebrew/homebrew-core”git remote set-url origin https://mirrors.ustc.edu.cn/homebrew-core.git
重置为官方地址:
cd”$(brew –repo)/Library/Taps/homebrew/homebrew-core”git remote set-url origin https://github.com/Homebrew/homebrew-core
Homebrew Cask
Homebrew cask 软件仓库，提供 macOS 应用和大型二进制文件
替换源地址:
cd “$(brew –repo)”/Library/Taps/homebrew/homebrew-cask
git remote set-url origin https://mirrors.ustc.edu.cn/homebrew-cask.git
重置为官方地址:
cd “$(brew –repo)”/Library/Taps/homebrew/homebrew-caskgit remote set-url origin https://github.com/Homebrew/homebrew-cask