sketch of package-aware file purger

require 'puppet/file_serving/metadata'
require 'puppet/type'

def generate
  existing_files = Puppet::FileServing::Metadata.indirection.search(path, :recurse=>:true).each { |f|
     full_path = ::File.join(base, relative_path)
  }.to_set
  # TODO: replace this code with something better.  At least match start of line, please.
  packaged_resources = `fgrep -h "#{dirname}/" /var/lib/dpkg/info/*.list`.split.to_set
  
  nonpackaged_files = (existing_files - packaged_resources)
  nonpackaged_files.each { |f| 
    resource = Puppet::Type.type('file').new(full_path)
    
    #TODO: this is supposed to prevent emission of file resources already in the catalog.  Does it?
    next if resource[:source]
    
    resource[:ensure] = :absent
    resource[:noop] = true
    resource
  end
end
  

Whoa!