Mac 解决brew一直卡在Updating Homebrew
https://www.jianshu.com/p/7cb05a2b39a5
运行命令brew install node，结果界面一直卡在Updating Homebrew...上，有两种解决办法
方法一：直接关闭brew每次执行命令时的自动更新（推荐）
vim ~/.bash_profile
# 新增一行
export HOMEBREW_NO_AUTO_UPDATE=true
方法二：替换brew源
cd "$(brew --repo)"
git remote set-url origin https://mirrors.ustc.edu.cn/brew.git
#替换homebrew-core.git
cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core"
git remote set-url origin https://mirrors.ustc.edu.cn/homebrew-core.git
brew update
# 备用地址-1
cd "$(brew --repo)"
git remote set-url origin https://git.coding.net/homebrew/homebrew.git
brew update
# 备用地址-2
cd "$(brew --repo)"
git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/brew.git
cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core"
git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew-core.git
brew update
如果备用地址都不行，那就只能再换回官方地址了
#重置brew.git
cd "$(brew --repo)"
git remote set-url origin https://github.com/Homebrew/brew.git
#重置homebrew-core.git
cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core"
git remote set-url origin https://github.com/Homebrew/homebrew-core.git作者：Harveyhhw
链接：https://www.jianshu.com/p/7cb05a2b39a5
来源：简书
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Macbook brew 安装软件 一直updating Homebrew
在用brew安装新的软件的时候一直出现：
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Updating Homebrew... |
主要是因为它试图在连接国外的源，
改成国内的源就好了：
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#替换brew.git:cd "$(brew --repo)"git remote set-url origin https://mirrors.ustc.edu.cn/brew.git#替换homebrew-core.git:cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core"git remote set-url origin https://mirrors.ustc.edu.cn/homebrew-core.git |
brew update慢，brew install慢如何解决？
https://www.uedbox.com/post/57246/
brew使用国内镜像源
这里用中科大的，另外还有清华的可用
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# 步骤一
cd "$(brew --repo)"
git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/brew.git
# 步骤二
cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core"
git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/homebrew-core.git
#步骤三
brew update
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注意这里需要等待一会，因为要更新资源。
更新完后使用brew update，brew install速度变快很多了，不会卡在那半天没动静，替换镜像完成。
复原
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cd "$(brew --repo)"
git remote set-url origin https://github.com/Homebrew/brew.git
cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core"
git remote set-url origin https://github.com/Homebrew/homebrew-core
brew update
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