there are quite a lot of ebuilds that need to remove CVS or .svn folders, so i wrote these little helpers for eutils.eclass
Created attachment 143976 [details, diff] clean helpers
Created attachment 143978 [details, diff] clean helpers this time with default dir = .
why dont you just use one liners ? find "$@" -type d -name .svn -print0 | xargs -0 rm -rf
i have committed the one-liners, thanks