Hi Brian,
first of all, I recommend to get SVN copy of Clone Digger.
Unfortunately I don't how does Clone Digger work in virtualenv, but you don't have to install Clone Digger in order to run it.
You can just run Clone Digger from SVN directory.
You can use the following syntax to ignore several dirs:
#ls 1
1.py ignore_1 ignore_2
#python ./clonedigger.py 1/ --ignore-dir=ignore_1 --ignore-dir=ignore_2
... it ignores 1/ignore_1 and 1/ignore_2
(I'm attaching archive with folder "1")
Note, that ignore_1 and ignore_2 are relative paths.
Unfortunately Clone Digger doesn't use os.path methods to ignore dirs, thus if you supply "--ignore-dir=ignore_1/" it will not ignore this directory just because "ignore_1/" != "ignore_1"
--
Best regards,
Peter Bulychev.