This is a GitHub CLI extension that generates Co-authored-by
to be added as a trailer
to the commit message.
This repository is just a wrap around what Hynek Schlawack did on their article TIL: Easier Crediting of Contributors on GitHub.
You need to have GitHub CLI installed, and then:
gh extension install Kludex/gh-co-author
There's a single command available:
gh co-author AUTHOR