Use pretty mode by default in CLI

lib/hamlit/cli.rb

@@ -3,6 +3,8 @@ require 'thor'
 
 module Hamlit
   class CLI < Thor
+    class_option :style, type: :string, aliases: ['-t'], default: 'pretty'
+
     desc 'render HAML', 'Render haml template'
     def render(file)
       code = generate_code(file)
@@ -23,7 +25,7 @@ module Hamlit
 
     def generate_code(file)
       template = File.read(file)
-      Hamlit::Engine.new.call(template)
+      Hamlit::Engine.new(engine_options).call(template)
     end
 
     def generate_ast(file)
@@ -31,6 +33,10 @@ module Hamlit
       Hamlit::Parser.new.call(template)
     end
 
+    def engine_options
+      { pretty: options['style'] == 'pretty' }
+    end
+
     # Flexible default_task, compatible with haml's CLI
     def method_missing(*args)
       return super(*args) if args.length > 1