Mac下更换Homebrew镜像源的实现方法

1.使用中科大源

（1）替换默认源
第一步：替换brew.git

cd "$(brew --repo)"

git remote set-url origin https://mirrors.ustc.edu.cn/brew.git

第二步：替换homebrew-core.git

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

（2）替换Homebrew Bottles源

Homebrew是OS X系统的一款开源的包管理器。出于节省时间的考虑，Homebrew默认从Homebrew Bottles源中下载二进制代码包安装。Homebrew Bottles是Homebrew提供的二进制代码包，目前镜像站收录了以下仓库：

homebrew/homebrew-core
homebrew/homebrew-dupes
homebrew/homebrew-games
homebrew/homebrew-gui
homebrew/homebrew-python
homebrew/homebrew-php
homebrew/homebrew-science
homebrew/homebrew-versions
homebrew/homebrew-x11

对于bash用户：

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

对于zsh用户

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

source ~/.zshrc

2.使用清华源

（1）替换默认源

第一步：替换现有上游

cd "$(brew --repo)"
git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/brew.git
cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core"
git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/homebrew-core.git
cd 
brew update

第二步：使用homebrew-science或者homebrew-python

cd "$(brew --repo)/Library/Taps/homebrew/homebrew-science"

git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/homebrew-science.git

或

cd "$(brew --repo)/Library/Taps/homebrew/homebrew-python"
git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/homebrew-python.git
cd 
brew update

（2）替换Homebrew Bottles源

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

3.在中科大源或清华源失效或宕机时可以切换回官方源

第一步：重置brew.git

cd "$(brew --repo)"
git remote set-url origin https://github.com/Homebrew/brew.git

第二步：重置homebrew-core.git

cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core"
git remote set-url origin https://github.com/Homebrew/homebrew-core.git
cd
brew update

第三步：注释掉bash配置文件里的有关Homebrew Bottles即可恢复官方源。 重启bash或让bash重读配置文件。

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