Allow a <directoryMode> to be applied to the base directory of a tar.gz archive

I'm working in a very specialized legacy environment in which it would be nice to have an archive (.tar.gz) that had all the permissions as I want from the start. Granted it's not all that hard to do after unpackaging with chmod running under find, but it would be nice if the base-directory itself had a <directory-mode> as do the <filesets> that get packaged under it. Bottom-line: the plugin doesn't give me the same level of control as the OS does. Archiver support for <fileMode> and <directoryMode> is to that extent incomplete.

The archiver does not create an entry in the archive for the base-directory. This is because no matter where you put the <directoryMode> it applies to directories WITHIN that <fileset>, not to the root of the fileset itself. If a directory entry is not created in the archive, then the -p switch of tar will have nothing to "preserve" and just use the default permission for the base directory.

Really, I think to make this work, one would have to be somehow be able to put a <directoryMode> on <base-directory> as well as actually create an entry in the archive for the base directory.