lib/eco/cli/config/options_set.rb in eco-helpers-1.5.1 vs lib/eco/cli/config/options_set.rb in eco-helpers-1.5.2

@@ -1,20 +1,36 @@
 module Eco
   class CLI
     class Config
       class OptionsSet
+        include Eco::CLI::Config::Help
         attr_reader :core_config
 
         def initialize(core_config:)
           @core_config = core_config
           @options_set = {}
+          @description = {}
         end
 
-        def add(option)
+        # @return [String] summary of the options.
+        def help
+          ["The following are the available options:"].yield_self do |lines|
+            max_len = keys_max_len(@options_set.keys)
+            @options_set.keys.each do |key|
+              lines << help_line(key, @description[key], max_len)
+            end
+            lines
+          end.join("\n")
+        end
+
+        # @param option [String] the command line option.
+        # @param desc [String] description of the option.
+        def add(option, desc = nil)
           raise "Missing block to define the options builder" unless block_given?
           callback = Proc.new
           [option].flatten.compact.each do |opt|
             @options_set[opt] = callback
+            @description[opt] = desc
           end
           self
         end
 
         def process(io:)