Comment 21 for bug 374274

@Andy If Deja-Dup just grows full support for rsync filters, the problem will be solved with that level of granularity. Rsync filters are incredibly powerful, and you can even merge in additional filter specs on a directory-by-directory basis.

IMO, Deja-Dup should *not* develop a filter mechanism with rsync's power but its own oddball syntax.