macOS 10.12.6 安装homebrew

系统环境

教程

https://segmentfault.com/a/1190000014992947

问题

安装报错

Press RETURN to continue or any other key to abort
==> Installing the Command Line Tools (expect a GUI popup):
==> /usr/bin/sudo /usr/bin/xcode-select --install
Password:
xcode-select: note: install requested for command line developer tools
Press any key when the installation has completed.
==> /usr/bin/sudo /usr/bin/xcode-select --switch /Library/Developer/CommandLineTools
xcode-select: error: invalid developer directory '/Library/Developer/CommandLineTools'
Failed during: /usr/bin/sudo /usr/bin/xcode-select --switch /Library/Developer/CommandLineTools

这是因为本机没有安装xcode开发套装。而Xcode Command Line Tools 是套装的一部分。
既然不做苹果应用程序开发，我们不需要安装完整的xcode，
只需要下载Xcode Command Line Tools即可。
参考：

1. https://railsapps.github.io/xcode-command-line-tools.html
2. https://stackoverflow.com/questions/50965714/installing-homebrew-on-mac-os-sierra-10-12-6

通过$ xcode-select --install下载会非常慢，所以直接访问 https://developer.apple.com/downloads/more 下载dmg文件

下载

提高brew速度

https://juejin.im/post/5d503ebef265da03cf7a7f48#heading-6