Change a Commit Message that Hasn't Been Pushed Yet
If you make a mistake in a commit message but HAVEN'T pushed it yet, you can change that commit message with --amend:
git commit --amend -m "New message"
This won't change any of the files in your commit - but will rewrite the commit with the new message.
Add More Files and Changes to a Commit Before Pushing
To add more files to the most recent commit, we can add them to the staging area with:
git add -A
and then rewrite the most recent commit to include them with:
git commit --amend -m "My new message"
Caution: only do this BEFORE you've pushed the commits - otherwise you will be re-writing history for people who may have already pulled down the old commits.
