Part of lp.archivepublisher.model
| Function | package_name | Extract a package name from a debian package filename. | 
| Function | make_clean_dir | Ensure that the path exists and is an empty directory. | 
| Class | AptFTPArchiveFailure | Failure while running apt-ftparchive. | 
| Class | FTPArchiveHandler | Produces Sources and Packages files via apt-ftparchive. |