how to reset develop branch to master

Question

I have develop & master branches, my develop branch is messy now and i would like to reset it and make it as a copy of my master

Answer 1

If you want to make develop be identical to master, the simplest way is just to recreate the pointer:

git branch -f develop master

Or, if you already have develop checked out:

git reset --hard develop master

Note however that both of these options will get rid of any history that develop had which wasn't in master. If that isn't okay, you could preserve it by instead creating a commit that mirrored master's latest state:

git checkout develop
git merge --no-commit master
git checkout --theirs master .
git commit