My master branch is so different than my development branch that I would like it to just become my master branch without having to do a merge, is this possible? Seems like I could walk into a lot of work if I just try and do a merge.
Jed Schneider
If you just have one copy of the repo, you could just delete your master branch, create a new branch from your dev branch called master, but you will have to notify others that you have changed the branch if there are other copies of the repo you don't control.
git checkout -b dev
git branch -D master
git checkout -b master
来源：https://stackoverflow.com/questions/4570590/make-git-branch-the-master-branch