Fast authors for Mercurial

In case you need to find out who commited the first version of a file to a Mercurial repository, there is this little command that does so quickly.

hg log -r 'first(file("path/to/file"))' --template '{author}\n' -f

This is using hg log together with hg templating. You can customize your output with stuff like {date|isodate} or {desc). -f follows through renames and removals.