Daniel Peñalba Daniel Peñalba - 1 year ago 84
Git Question

What's the difference between 'git merge' and 'git rebase'?

I'm trying to understand ... What's the difference between

git merge
git rebase

mvp mvp
Answer Source

Suppose originally there were 3 commits, A,B,C:


Then developer Dan created commit D, and developer Ed created commit E:


Obviously, this conflict should be resolved somehow. For this, there are 2 ways:



Both commits D and E are still here, but we create merge commit M that inherits changes from both D and E. However, this creates diamond shape, which many people find very confusing.



We create commit R, which actual file content is identical to that of merge commit M above. But, we get rid of commit E, like it never existed (denoted by dots - vanishing line). Because of this obliteration, E should be local to developer Ed and should have never been pushed to any other repository. Advantage of rebase is that diamond shape is avoided, and history stays nice straight line - most developers love that!

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