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

I added this to my windows powershell profile

function svnclean {
    svn status | foreach { if($_.StartsWith("?")) { Remove-Item $_.substring(8) -Verbose } }
}