# hx/listing/recursiveindex - Recursive index generator # # Copyright (c) 2009-2011 MenTaLguY <mental@rydia.net> # # Permission is hereby granted, free of charge, to any person obtaining # a copy of this software and associated documentation files (the # "Software"), to deal in the Software without restriction, including # without limitation the rights to use, copy, modify, merge, publish, # distribute, sublicense, and/or sell copies of the Software, and to # permit persons to whom the Software is furnished to do so, subject to # the following conditions: # # The above copyright notice and this permission notice shall be # included in all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. require 'hx' require 'hx/listing' require 'set' module Hx module Listing class RecursiveIndex include Hx::Filter def self.new(input, options) listing = super(input, options) Listing.apply_options(listing, options) end def initialize(input, options) @input = input @index_name = options[:index_name] || "index" end def each_entry(selector) indices = {} @input.each_entry(Path::ALL) do |path, entry| components = path.split("/") until components.empty? components.pop index_path = (components + [@index_name]).join("/") next unless selector.accept_path? index_path index_entry = indices[index_path] unless index_entry index_entry = {'items' => []} indices[index_path] = index_entry end if path == index_path index_entry = entry.merge(index_entry) indices[index_path] = index_entry end index_entry['items'] << {'path' => path, 'entry' => entry} index_entry['updated'] = Hx.last_update_time(index_entry, entry) end end indices.each do |path, entry| yield path, entry end self end end end end