Automatically remove Subversion unversioned files

Question

Does anybody know a way to recursively remove all files in a working copy that are not under version control? (I need this to get more reliable results in my automatic build

Answer 1

Linux command line:

svn status --no-ignore | egrep '^[?I]' | cut -c9- | xargs -d \\n rm -r

Or, if some of your files are owned by root:

svn status --no-ignore | egrep '^[?I]' | cut -c9- | sudo xargs -d \\n rm -r

This is based on Ken's answer. (Ken's answer skips ignored files; my answer deletes them).