08. brew 问题

1.brew 卸载

$ ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"

2.重新安装

# 重新安装
$ ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
# 更新
$ brew update

3.更新镜像

# 查看 brew的安装路径
$ brew --repo
# 进入brew 的安装路径
$ cd  $PATH

$ git remote set-url origin https://mirrors.aliyun.com/homebrew/brew.git 
$ git remote set-url origin https://mirrors.ustc.edu.cn/homebrew-core.git
$ git remote set-url origin https://mirrors.ustc.edu.cn/homebrew-cask.git
$ git remote set-url origin https://mirrors.ustc.edu.cn/homebrew-cask-versions.git

4.推荐安装

使用国外的安装，太慢了，而且总是失败！国内有很多牛人，简化国人的安装方式，如下

# 安装脚本
$ /bin/zsh -c "$(curl -fsSL https://gitee.com/cunkai/HomebrewCN/raw/master/Homebrew.sh)"

# 卸载脚本
/bin/zsh -c "$(curl -fsSL https://gitee.com/cunkai/HomebrewCN/raw/master/HomebrewUninstall.sh)"

A.现象

$ brew update
fatal: Could not resolve HEAD to a revision

# 解决方案
# 方案1
$ git -C $(brew --repository homebrew/core) checkout master

#方案2
$ git -C $(brew --repository homebrew/core) reset --hard HEAD.

参考资料

• brew 修改镜像源
• homebrew-could-not-resolve-head-to-a-revision