Mac中让git自动补齐

1. 下载官方的补齐脚本：

curl -o ~/.git-completion.bash https://raw.githubusercontent.com/git/git/master/contrib/completion/git-completion.bash

2. 配置生效,在~/.bash_profile（没有就新建）中添加如下代码，之后重启Shell。

if [ -f ~/.git-completion.bash ]; then
    . ~/.git-completion.bash
fi

source ~/.git-completion.bash