3 posts tagged with "programming-tips"

That "Verified" badge on GitHub isn't just for show-it's a cryptographic guarantee that the code actually came from you and hasn't been tampered with. Without it, anyone can technically spoof your name and email in a Git commit.

By using GPG (GNU Privacy Guard), you "seal" your commits with a private key that only you possess. GitHub then uses your public key to verify that seal.

This error usually pops up when you're trying to use the --author flag during a commit or a rebase, and Git is failing its "detective work."

Unlike a simple text label, the --author flag triggers a search. Git tries to find a match in your existing history or your configuration. If your search string is too vague, has a typo, or doesn't match the required pattern, Git throws its hands up and says: fatal: No existing author found with 'XYZ'.

Every Git commit records two distinct identities: the Author (who originally wrote the code) and the Committer (who applied the changes to the branch). While these are usually the same person, they can diverge during operations like rebasing, cherry-picking, or merging.

Whether you need to trace who wrote a line of code or fix a typo in your own commit email, this guide covers how to find, change, and automatically configure Git commit author details.