国内Homebrew安装太慢问题

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国内Homebrew安装太慢问题
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介绍

Homebrew是一款Mac OS平台下的软件包管理工具，拥有安装、卸载、更新、查看、搜索等很多实用的功能。简单的一条指令，就可以实现包管理，而不用你关心各种依赖和文件路径的情况，十分方便快捷。

本文主要解决问题：Homebrew常规安装太慢；以及通过brew install安装软件太慢，还有时不时的自动updating巨耗时的问题。

Homebrew官网链接：

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


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

问题

国内官网安装基本很慢，速度不忍直视，5KB/s……；这速度怎么对得起科学上网？

一开始大概是这个样子

Terminal window
==> This script will install:
/usr/local/bin/brew
/usr/local/share/doc/homebrew
/usr/local/share/man/man1/brew.1
/usr/local/share/zsh/site-functions/_brew
/usr/local/etc/bash_completion.d/brew
/usr/local/Homebrew
Press RETURN to continue or any other key to abort
==> Downloading and installing Homebrew...

大部分情况是安装了一会就报错，然后是这个样子：

Terminal window
curl: (7) Failed to connect to raw.githubusercontent.com port 443: Connection refused


-----f**k-----

解决方案

1.创建HomeBrew文件夹

Terminal window
// 首先确保/usr/local/Homebrew文件夹不存在，存在的话删除，然后执行：


sudo mkdir /usr/local/Homebrew

2.克隆git仓库

Terminal window
sudo git clone https://mirrors.ustc.edu.cn/brew.git /usr/local/Homebrew
// 或
sudo git clone https://mirrors.aliyun.com/homebrew/brew.git /usr/local/Homebrew


// 回车后，会提示Receiving objects: xx% 等待下载完成。


Cloning into '/usr/local/Homebrew'...
remote: Counting objects: 132526, done.
remote: Total 132526 (delta 0), reused 0 (delta 0)
Receiving objects: 100% (132526/132526), 32.16 MiB | 1.09 MiB/s, done.
Resolving deltas: 100% (97548/97548), done.

3.创建一个快捷方式到/usr/local/bin目录

Terminal window
// 如果存在，先删掉
sudo ln -s /usr/local/Homebrew/bin/brew /usr/local/bin/brew

4.创建core文件夹 并再次git克隆

Terminal window
// 存在先删掉
sudo mkdir -p /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core


sudo git clone https://mirrors.ustc.edu.cn/homebrew-core.git /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core




// 完成后输出以下信息：
Cloning into '/usr/local/Homebrew/Library/Taps/homebrew/homebrew-core'...
remote: Counting objects: 688626, done.
remote: Total 688626 (delta 0), reused 0 (delta 0)
Receiving objects: 100% (688626/688626), 223.64 MiB | 6.83 MiB/s, done.
Resolving deltas: 100% (455339/455339), done.

5.获取权限并运行更新

Terminal window
sudo chown -R $(whoami) /usr/local/Homebrew


// 更新
brew update

大功告成了。

Homebrew 安装时如何避坑

1.若出现 Error: Checksum mismatch

Terminal window
curl: (56) LibreSSL SSL_read: SSL_ERROR_SYSCALL, errno 54
Error: Checksum mismatch.
Expected: b065e5e3783954f3e65d8d3a6377ca51649bfcfa21b356b0dd70490f74c6bd86
Actual: e8a348fe5d5c2b966bab84052062f0317944122dea5fdfdc84ac6d0bd513c137
Archive: /Users/joyce/Library/Caches/Homebrew/portable-ruby-2.6.3_2.yosemite.bottle.tar.gz
To retry an incomplete download, remove the file above.
Error: Failed to install Homebrew Portable Ruby (and your system version is too old)!
Failed during: /usr/local/bin/brew update --force

出现以上类似问题，是由Homebrew目录下的portable-ruby-2.6.3_2.yosemite.bottle.tar.gz文件引起的安装中断，只需要到上面对应的路径里，删掉这个文件，重新执行安装命令即可：

Terminal window
// 删除对应的portable-ruby-** 文件
/usr/bin/ruby -e "$(curl -fsSL https://cdn.jsdelivr.net/gh/ineo6/homebrew-install/install)"

参考文档：1. 2.

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