其实 Git 工程目录下的 .git 隐藏文件夹就是所谓的 bare 仓库，我们只需要简单修改 .git 文件夹里 config 文件中的 bare = false 字段为 bare = true 即可，反之同理。

[core]
	repositoryformatversion = 0
	filemode = false
	bare = false
	logallrefupdates = true
	symlinks = false
	ignorecase = true
[remote "origin"]
	url = https://github.com/xxx/xxx.git
	fetch = +refs/heads/*:refs/remotes/origin/*
[branch "master"]
	remote = origin
	merge = refs/heads/master