Okay. If I'm on a branch (say working), and I want to merge in the changes from another branch (say master), then I run the command git-merge master while on the working branch, and the changes get merged in without rebasing the history at all. If I run git-rebase master, then the changes in master are rebased to be put on the top of my working branch. But what if I want to merge in the changes from master but rebase my changes in working to be on top? How do I do that? Can it be done?
I could run git-rebase working on my master branch to put my changes on top in the master branch, but I'd like to be able to do that in my working branch, and I have no idea how. The closest that I can think of doing is creating a new branch from master and then rebase working's changes on top of that, but then I'd have a new branch instead of altering the working branch.
You've got what rebase does backwards. git rebase master does what you're asking for — takes the changes on the current branch (since its divergence from master) and replays them on top of master, then sets the head of the current branch to be the head of that new history. It doesn't replay the changes from master on top of the current branch.
Another way to look at it is to consider git rebase master as:
Rebase the current branch on top of
master
Here , 'master' is the upstream branch, and that explain why, during a rebase, ours and theirs are reversed.
来源：https://stackoverflow.com/questions/7297379/how-do-you-rebase-the-current-branchs-changes-on-top-of-changes-being-merged-in