git via http proxy

it is supposed to work-like-a-charm - git via a http-proxy - but then again, sometimes it just doesn't.
in case, changing git clone git://... into git clone http://... does not help this might:

socat TCP4-LISTEN:9418,reuseaddr,fork \
PROXY:proxy.hostname.dom:gitrepo.host.dom:9418,proxyport=3128 &
git clone git://localhost/GITREPOPATH

references:

• http://limlian.blogspot.com/2008/08/use-http-proxy-for-git-client.html?showComment=1221973140000#c6839850601346705219