# To create a new action, modify /usr/share/gitweb/gitweb.cgi
# search for "our %actions" add a new line:
"commit_message" => \&git_commit_message

# Then append this simple sub I wrote
sub git_commit_message {
        $hash ||= $hash_base || "HEAD";
        my %co = parse_commit($hash)
            or die_error(404, "Unknown commit object");

        git_print_log($co{'comment'});
}