Add setg and unsetg alises

Closes #48

Author: rastating

lib/cli/console.rb

@@ -23,12 +23,14 @@ class Console
     include Cli::Output
 
     def commands_without_output
-      %w(back)
+      %w[back]
     end
 
     def permitted_commands
-      %w(use back set show quit run unset check info gset gunset search clear
-         reload help)
+      %w[
+        use back set show quit run unset check info
+        gset setg gunset unsetg search clear reload help
+      ]
     end
 
     def initialize
@@ -112,8 +114,20 @@ def on_event_emitted(event)
       end
     end
 
+    def normalise_alised_commands(command)
+      if command == 'exit'
+        'quit'
+      elsif command == 'setg'
+        'gset'
+      elsif command == 'unsetg'
+        'gunset'
+      else
+        command
+      end
+    end
+
     def execute_user_command(command, args)
-      command = 'quit' if command == 'exit'
+      command = normalise_alised_commands(command)
       if can_handle? command
         puts unless commands_without_output.include? command
         send(command, *args) if correct_number_of_args?(command, args)