问题更新自制软件

试图更新自制软件，我得到这个：

$ brew update

error: Your local changes to the following files would be overwritten by merge:
    .gitignore
    Library/Contributions/brew_bash_completion.sh
    Library/Contributions/brew_fish_completion.fish
    Library/Contributions/brew_zsh_completion.zsh
    Library/Contributions/manpages/brew.1.md
    Library/ENV/4.3/cc
    Library/ENV/4.3/make
    Library/ENV/4.3/xcrun
    Library/ENV/libsuperenv.rb
Please, commit your changes or stash them before you can merge.
error: The following untracked working tree files would be overwritten by merge:
    CONTRIBUTING.md
    Library/Aliases/ag
    Library/Aliases/heroku

......等......

任何方式只是清理它？看起来它是在引擎盖下使用git？

这取决于您是否关心对这些文件的本地更改。您是自己更改了它们，还是运行了更改它们的程序或其他内容？

如果你根本不打算改变它们，那cd /usr/local就跑git reset --hard HEAD; 这会将它们全部重置为原始状态。然后尝试更新Homebrew。