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Sometimes you have a pretty old branch you are trying to merge into and you are absolutely sure what you have is what you want, and therefore you don't want to deal with any sort of merge conflicts, you would rather just tell git to use my version and move on.
update main
The first step is to make sure your local copy of the branch you are moving into is up to date.
git checkout main git pull
update your feature branch
It's also worth updating your feature branch before doing the merge. Maybe you have teammates that have updated the repo, or you popped in a quick change from the web ui. It's simple and worth checking.
git checkout my-feature git pull
start the merge
Merge the changes from main into my-feature branch.
git merge main
Now is where the merge conflict may have started. If you are completely sure
that your copy is correct you can --ours, if you are completely sure that
main is correct, you can --theirs.
git checkout --ours . git merge --continue
This will pop open your configured git.core.editor or $EDTIOR. If you have
not configured your editor, it will default to vim. Close vim with <escape>:x, accepting the
merge message.
Now push your changes that do not clash with main and finish your pr.
git push