Is it possible to list all users that contributed to a project (users that have done commits) in Git?
Any additional statistics?
If you want to be more specific in the list (find a list of unique committer and author), you could use git log:
git log --pretty="%an %ae%n%cn %ce" | sort | uniq
%an author name%ae author email%n new line%cn committer name%ce committer emailOther placeholders are described in the pretty print documentation of git log.