adding-help: commit optimized tab completion and help

lib/feature/commander.rb

@@ -1,34 +1,11 @@
-require_relative './start'
-require_relative './end'
-require_relative './trash'
-require_relative './rebase'
-require_relative './merge_to'
-require_relative './tab'
-require_relative './branch'
-require_relative './commit'
-require_relative './help'
-
 module Feature
 
   class Commander
-    attr_reader :subcommands, :subcommand
+    attr_reader :subcommand
 
     def initialize (argv)
-      @subcommands = {
-        branch: Feature::Branch.new(argv),
-        commit: Feature::Commit.new(argv),
-        help:   Feature::Help.new(argv),
-        end:    Feature::End.new(argv),
-        rebase: Feature::Rebase.new(argv),
-        merge:  Feature::MergeTo.new(argv),
-        start:  Feature::Start.new(argv),
-        tab:    Feature::Tab.new(argv),
-        trash:  Feature::Trash.new(argv)
-      }
-
       key = (argv[0] ? argv[0].to_sym : :branch)
-
-      @subcommand = (subcommands[key] ? subcommands[key] : subcommands[:help])
+      @subcommand = Commander.create(key,argv)
     end
 
     def valid?
@@ -43,6 +20,30 @@ module Feature
       subcommand.execute
     end
 
+    def self.commands
+      [
+        :branch,
+        :commit,
+        :help,
+        :end,
+        :rebase,
+        :merge,
+        :start,
+        :tab,
+        :trash
+      ].sort
+    end
+
+    def self.create key, argv
+      key = "help" unless Commander.commands.include? key
+      require_relative "./#{key}"
+      klass = Module.const_get "Feature::#{key.capitalize}"
+      klass.new(argv)
+    end
+
+    def self.create_all argv
+      commands.map { |x| create(x,argv) }
+    end
   end
 
 end

lib/feature/help.rb

@@ -13,10 +13,7 @@ module Feature
 
     def execute
       puts
-      # TODO: fix this
-      commander = Feature::Commander.new(argv)
-      commander.subcommands.keys.sort.each do |key|
-        cmd = commander.subcommands[key]
+      Feature::Commander.create_all(argv).each do |cmd|
         puts cmd.help
       end
       puts

lib/feature/merge.rb

@@ -2,7 +2,7 @@ require_relative './base'
 
 module Feature
 
-  class MergeTo < Feature::Base
+  class Merge < Feature::Base
     def valid?
       [1,2].include? argv.size
     end

lib/feature/tab.rb

@@ -20,10 +20,7 @@ module Feature
 
       regexp = Regexp.new(pattern)
 
-      # TODO: fix this
-      cmds = Feature::Commander.new(argv).subcommands.keys.map(&:to_s).sort.select { |x| regexp.match(x) }
-
-      puts cmds.join("\n")
+      puts Feature::Commander.commands.select { |x| regexp.match(x.to_s) }.join("\n")
     end
   end