install_generator.rb in purecss-0.5.0.2

- old
+ new

@@ -3,10 +3,11 @@
 module Purecss
   module Generators
     class InstallGenerator < Rails::Generators::Base
       source_root File.join(File.dirname(__FILE__), 'templates')
       argument :stylesheets_type, :type => :string, :default => 'responsive', :banner => '*responsive or nonresponsive'
+      class_option :add_viewport_meta, :type => :boolean, :default => false, :description => "Inject Viewport Meta in the Head of layout/application.html.erb (default: false)"
       
       def add_assets
         if stylesheets_type=='nonresponsive'
           purecss_type = 'purecss-nr'
         elsif stylesheets_type=='responsive'
@@ -14,10 +15,17 @@
         else
           raise "'#{stylesheets_type}'' is not recognized, use either 'responsive' or 'nonresponsive'"
           
         end
 
-        insert_into_file "app/assets/stylesheets/application#{detect_css_format[0]}", "#{detect_css_format[1]} require #{purecss_type}\n", :after => "require_self\n"              
+        insert_into_file "app/assets/stylesheets/application#{detect_css_format[0]}", "#{detect_css_format[1]} require #{purecss_type}\n", :after => "require_self\n"
+        
+        if options.add_viewport_meta
+          if not File.exist?("app/views/layouts/application.html.erb")
+            raise "Unable to add viewport meta tag to  (see https://github.com/mseri/rails-purecss/issues/6)"
+          end
+          insert_into_file "app/views/layouts/application.html.erb", "  <!-- Set the viewport width to device width for mobile -->\n  <meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">\n", :before => "</head>"   
+        end
       end
       
       def detect_css_format
         return ['.css', ' *='] if File.exist?('app/assets/stylesheets/application.css')
         return ['.css.sass', ' //='] if File.exist?('app/assets/stylesheets/application.css.sass')