Sparse Directories
▻http://svnbook.red-bean.com/en/1.8/svn.advanced.sparsedirs.html
Subversion 1.6 also introduced another supported value for the —set-depth option: exclude. Using —set-depth exclude with #svn update will cause the update target to be removed from the working copy entirely—a directory target won’t even be left present-but-empty. This is especially handy when there are more things that you’d like to keep in a working copy than things you’d like to not keep.Beginning with Subversion 1.6, you can take a different approach. First, check out the directory in full. Then run svn update —set-depth exclude on the one subdirectory you don’t care about.
svn update --set-depth exclude many-dirs/unwanted-dir
Cela permet par exemple d’exclure le répertoires tags et externals de votre copie locale de la #zone de #spip ;)