• mac下使用bash-completion进行git命令自动补全
• 检查是否已经安装

$ brew list

• 若未安装,则使用homebrew安装

$ brew install bash-completion

• 安装完成后查看插件信息

$ brew info bash-completion
bash-completion: stable 1.3 (bottled)
Programmable completion for Bash 3.2
https://salsa.debian.org/debian/bash-completion
Conflicts with:
bash-completion@2 (because Differing version of same formula)
/usr/local/Cellar/bash-completion/1.3_3 (190 files, 672KB) *
Poured from bottle on 2018-09-04 at 10:48:32
From: https://github.com/Homebrew/homebrew-core/blob/master/Formula/bash-completion.rb
==> Caveats
Add the following line to your ~/.bash_profile:
[ -f /usr/local/etc/bash_completion ] && . /usr/local/etc/bash_completion
Bash completion has been installed to:
/usr/local/etc/bash_completion.d

• *按照提示将插件输出内容加入~/.bash_profile

\#将下方内容添加到~/.bash_profile
[ -f /usr/local/etc/bash_completion ] && . /usr/local/etc/bash_completion

• 添加git补全支持

$ cd /usr/local/opt/bash-completion/etc/bash_completion.d
$ curl -L -O https://raw.github.com/git/git/master/contrib/completion/git-completion.bash
$ brew unlink bash-completion
$ brew link bash-completion

• 重启命令行