One thing I wish git did differently was to have an atomic commit-and-push operation. I'd like to prepare my commit as normal, but when its ready, it pushes that commit as well, but if that push fails, it undoes the commit.

Why? I recently configured my github to use a hidden email address. To this end, it required me to use a github.com email address it generated for my commits. I set it up and started pushing commits, everyone was happy.

Then I went to a different folder that had a separate clone of the same repo, and I forgot I had configured github this way. I made some changes and did the usual commit-and-push but github rejected it. I had used the wrong email. Oops.

But now I had a problem. My local repo had the commit with the wrong email address in place and I didn't know to change it. I couldn't make a new commit with the new email as the old one was still there. I looked up how to revert already committed commits and long story short I did it wrong and deleted all my recent changes.