brew update 慢 解决办法 镜像更新源

转自：https://www.logcg.com/archives/1301.html

Brew 是OS X 上类似apt-get以及yum的一个软件包管理器，它依托于Github………………

所以，虽然你侥幸下载到了 brew，但你肯定是无法更新 brew 的。原因你懂。不过虽然不能更新 brew，但这只是指brew这个管理器本身罢了，软件还是可以安装的。但由于无法使用 brewupdate 也就无法更新软件……我们有必要来给 brew 换源。

brew 的镜像源

brew 也有镜像源？嗯，确实有的，而且还不止一个：

• 中科大brew镜像源
• 清华brew镜像源

• cd /usr/localgit remote set-url origin git://mirrors.tuna.tsinghua.edu.cn/homebrew.git//清华镜像源git remote set-url origin http://mirrors.ustc.edu.cn/homebrew.git//中科大镜像源//二者选其一即可更新

  cd ~mkdir tmpcd tmp//以下要与你选择的镜像源相同git clone git://mirrors.tuna.tsinghua.edu.cn/homebrew.gitgit clone http://mirrors.ustc.edu.cn/homebrew.git sudo rm -rf /usr/local/.gitsudo rm -rf /usr/local/Librarysudo cp -R homebrew/.git /usr/local/sudo cp -R homebrew/Library /usr/local/

  排错

  如果你遇到如下问题：

  ╰─➤  brew updateStashing your changes: M .gitignore M .yardopts M README.md M share/doc/homebrew/Acceptable-Formulae.md M share/doc/homebrew/Common-Issues.md M share/doc/homebrew/FAQ.md M share/doc/homebrew/Formula-Cookbook.md M share/doc/homebrew/Homebrew-0.9.3.md M share/doc/homebrew/How-To-Open-a-Homebrew-Pull-Request-(and-get-it-merged).md D share/doc/homebrew/How-to-Create-and-Maintain-a-Tap.md M share/doc/homebrew/How-to-build-software-outside-Homebrew-with-Homebrew-keg-only-dependencies.md M share/doc/homebrew/Installation.md M share/doc/homebrew/Interesting-Taps-&-Branches.md M share/doc/homebrew/Maintainer-Guidelines.md M share/doc/homebrew/Press.md M share/doc/homebrew/Python-for-Formula-Authors.md M share/doc/homebrew/Querying-Brew.md M share/doc/homebrew/README.md D share/doc/homebrew/Rename-A-Formula.md M share/doc/homebrew/Troubleshooting.md M share/doc/homebrew/Xcode.md M share/doc/homebrew/brew-tap.md M share/man/man1/brew.1fatal: Unable to create '/usr/local/.git/index.lock': Permission deniedCannot save the current index stateError: Failure while executing: git stash save --include-untracked --quiet

  
  那么就安照如下命令排错：

• sudo chgrp -R admin /usr/local//确保目录归属管理组sudo chmod -R g+w /usr/local//确保管理组可读