git-reset-revert.md

###Rolling back local and remote git repository

If nobody has pulled your remote repo yet, you can change your branch HEAD and force push it to said remote repo:

git reset --hard HEAD^ 
git push -f 

###What if somebody has already pulled the repo?

Then I would suggest something that doesn't rewrite the history:

• git revert locally your last commit (creating a new commit that reverses what the previous commit did)
• push the 'revert' generated by git revert.

From stackoverflow