def load_current_resource
@current_resource = Chef::Resource::Package.new(@new_resource.name)
@current_resource.package_name(@new_resource.package_name)
@current_resource.version(nil)
_, category_with_slash, category, pkg = %r{^#{PACKAGE_NAME_PATTERN}$}.match(@new_resource.package_name).to_a
possibilities = Dir["/var/db/pkg/#{category || "*"}/#{pkg}-*"].map {|d| d.sub(%r{/var/db/pkg/}, "") }
versions = possibilities.map do |entry|
if(entry =~ %r{[^/]+/#{Regexp.escape(pkg)}\-(\d[\.\d]*((_(alpha|beta|pre|rc|p)\d*)*)?(-r\d+)?)})
[$&, $1]
end
end.compact
if versions.size > 1
atoms = versions.map {|v| v.first }.sort
raise Chef::Exceptions::Package, "Multiple packages found for #{@new_resource.package_name}: #{atoms.join(" ")}. Specify a category."
elsif versions.size == 1
@current_resource.version(versions.first.last)
Chef::Log.debug("#{@new_resource} current version #{$1}")
end
@current_resource
end