macOS系统下安装Homebrew慢

1.获取install文件并编辑

cd ~
curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install >> brew_install

编辑的话直接在Finder里面搜索brew_install，双击之后打开，一般会用Xcode打开。原文说的“注释掉BREW_REPO = "https://github.com/Homebrew/brew".freeze和CORE_TAP_REPO = "https://github.com/Homebrew/homebrew-core".freeze”，新版没有CORE_TAP_REPO这一行，不过没关系，新增上去就行了。

修改后代码和截图如下

#!/usr/bin/ruby
# This script installs to /usr/local only. To install elsewhere (which is
# unsupported) you can untar https://github.com/Homebrew/brew/tarball/master
# anywhere you like.
HOMEBREW_PREFIX = "/usr/local".freeze
HOMEBREW_REPOSITORY = "/usr/local/Homebrew".freeze
HOMEBREW_CORE_TAP = "/usr/local/Homebrew/Library/Taps/homebrew/homebrew-core".freeze
HOMEBREW_CACHE = "#{ENV["HOME"]}/Library/Caches/Homebrew".freeze
#BREW_REPO = "https://github.com/Homebrew/brew".freeze#修改前
BREW_REPO = "git://mirrors.ustc.edu.cn/brew.git".freeze#修改后
CORE_TAP_REPO = "git://mirrors.ustc.edu.cn/homebrew-core.git".freeze#新增

2.开始安装

/usr/bin/ruby ~/brew_install

在这里我没有遇到原文下面提问的朋友遇到的卡住报错不动等问题，仅停顿了一会儿。

3.替换源

#替换homebrew默认源
cd "$(brew --repo)"
git remote set-url origin git://mirrors.ustc.edu.cn/brew.git

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

4.brew更新

brew update

最后:

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