1.切换到新的分支
git checkout --orphan latest_branch
2.缓存所有文件(除了.gitignore中声明排除的)
git add -A
3.提交跟踪过的文件(Commit the changes)
git commit -am "commit message"
4.删除master分支(Delete the branch)
git branch -D master
5.重命名当前分支为master(Rename the current branch to master)
git branch -m master
6.提交到远程master分支 (Finally, force update your repository)
git push -f origin master
原文:https://www.cnblogs.com/leahs-blog/p/13310119.html