A Minimal Build Service OSC Plugin

I am trying to make OBS cooperate with my old release scripts*. So far I have this minimal plugin for osc to share:

$ mkdir ~/.osc-plugins
$ cd $_
$ cat > releasecheck.py <<EOF
def do_releasecheck(self, subcmd):
   print "Release early, release often."
EOF
$ osc releasecheck
Release early, release often.

*) They are not released, bad me; but they rely on the internal directory layout anyway.