Removed idea to have Tasks have a seperate step class; needless abstraction at this point, added manifest parser

lib/application_manager/manifest.rb

@@ -0,0 +1,72 @@
+class W3DHub
+  class ApplicationManager
+    class Manifest
+      attr_reader :game, :type, :version, :base_version, :files, :dependencies
+
+      def initialize(category, subcategory, name, version)
+        manifest = File.read(Cache.package_path(category, subcategory, name, version))
+        @document = REXML::Document.new(manifest)
+        root = @document.root
+
+        @game = root["game"]
+        @type = root["type"]
+        @version = root["version"]
+        @base_version = root["baseVersion"]
+
+        @files = []
+        @dependencies = []
+
+        parse_files
+        parse_dependencies
+      end
+
+      def patch?
+        @type == "Patch"
+      end
+
+      def full?
+        @type == "Full"
+      end
+
+      def parse_files
+        @document.root.elements.each("//File") do |element|
+          @files.push(ManifestFile.new(element))
+        end
+      end
+
+      def parse_dependencies
+        @document.root.elements.each("//Dependency") do |element|
+          @files.push(Dependency.new(element))
+        end
+      end
+
+      # TODO: Support patches? Are they still a thing>
+      class ManifestFile
+        attr_reader :name, :checksum, :package, :removed_since
+
+        def initialize(xml)
+          @data = xml
+
+          @name = @data["name"]
+          @checksum = @data["checksum"]
+          @package = @data["package"]
+          @removed_since = @data["removedsince"]
+        end
+
+        def removed?
+          @removed_since
+        end
+      end
+
+      class Dependency
+        attr_reader :name
+
+        def initialize(xml)
+          @data = xml
+
+          @name = @data["name"]
+        end
+      end
+    end
+  end
+end