fastimport and pruning empty directories

[Tom Widmer]

Bazaar tracks directories, unlike most other DVCSes. However, the 
fastimport format (as far as I know) has no way of specifying directory 
creation or deletion, or, if it does, hg and git exporters don't to my 
knowledge make use of it (since they don't think that such operations 
exist!).

Is there any way to get bzr fast-import to prune empty directories (e.g. 
when the last file in a directory is removed, automatically remove the 
directory in the same revision)? That would resolve the problems I am 
having trying to convert an hg repository to bzr.

This may also apply to bzr's foreign repository support (e.g. when 
cloning from hg, the history could automatically include the necessary 
directory deletes to avoid having empty directories).

Thanks,

Tom