git 如何更新 Homebrew？
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How do I update Homebrew?
提问by andrewpthorp
When I ran:
当我跑：
brew update
I got a message saying it initialized an empty repository in /usr/local/.git/, then I got this error:
我收到一条消息，说它在 中初始化了一个空的存储库/usr/local/.git/，然后我收到了这个错误：
回答by corysimmons
cd /usr/localgit status- Discard all the changes (unless you actually want to try to commit to Homebrew - you probably don't)
git statustil it's cleanbrew update
cd /usr/localgit status- 放弃所有更改（除非您确实想尝试使用 Homebrew - 您可能不想）
git status直到它干净brew update
回答by Peter O'Brien
Alternatively you could update brewby installing it again. (Think I did this as El Capitan changed something)
或者，您可以brew通过再次安装来更新。（认为我这样做是因为 El Capitan 改变了一些东西）
Note: this is a heavy handed approach that will remove all applications installed via brew!
注意：这是一种笨手笨脚的方法，它将删除所有通过 brew 安装的应用程序！
Try to install brew a fresh and it will tell how to uninstall.
尝试重新安装 brew，它会告诉如何卸载。
At original time of writing to uninstall:
在撰写卸载的原始时间：
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"
