options_set.rb in eco-helpers-2.0.26

- old
+ new
@@ -12,20 +12,22 @@
           @core_config = core_config
           @sets        = {}
         end
 
         # @return [String] summary of the options.
-        def help
+        def help(refine: nil)
           indent = 2
           spaces = any_non_general_space_active? ? active_namespaces : namespaces
-
-          ["The following are the available options:"].yield_self do |lines|
+          refinement = refine.is_a?(String)? " (containing: '#{refine}')" : ""
+          ["The following are the available options#{refinement}:"].yield_self do |lines|
             max_len = keys_max_len(options_args(spaces)) + indent
             spaces.each do |namespace|
               is_general = (namespace == :general)
               str_indent = is_general ? "" : " " * indent
               lines << help_line(namespace, "", max_len) unless is_general
-              options_set(namespace).each do |arg, option|
+              options_set(namespace).select do |arg, option|
+                refine.is_a?(String) && option.name.include?(refine)
+              end.each do |arg, option|
                 lines << help_line(" " * indent + "#{option.name}", option.description, max_len)
               end
             end
             lines
           end.join("\n")