T=$(mktemp -d -t -p /var/tmp git.XXXXXXXXXX)
D=$(date +%Y-%m-%d)
-B=git-$D.tar.gz
+B=<%= node[:git][:backup] %>-$D.tar.gz
ln -s /var/lib/git $T/git-$D
export GZIP="--rsyncable -9"
+export RSYNC_RSH="ssh -ax -c arcfour"
nice tar --create --gzip --dereference --directory=$T --file=$T/$B git-$D
nice rsync $T/$B backup::backup