Hello. Currently svn 1.7-trunk doesn't support excluding externals from wc, altough it used to.(Sometime between multi-db and single-db it stopped working)
It seems that in (libsvn_wc/crop.c) in function svn_wc_exclude at line:220 checks only if it is root (contains admin area) and errors out if so and it doesn't see/check bigger picture (prop external). Further there is deeper in exclude proccess (libsvn_wc/adm_ops.c) in svn_wc__internal_remove_from_revision_control at line 1928 call to svn_wc__adm_destroy even though there is no admin directory since single-db. Either one could fix exclude of externals (ommiting while checkout/"update to" lasts until next update,then externals are added again) or remove call to svn_wc__adm_destroy.(if excluding externals was/is unwanted) As for fixing, one would have to inform in some way svn_wc_exclude about case (external/wc root). Last thing:current 1.7-trunk also leaves behind directories containing externals after exclude. Thanks. Daniel Klima P.S.:I tried to fit manualy in 72-chars width while using gmail,so I might have misscounted or misscorrect. (at least I never saw option for char/column width in gmail)
