Option to enable growl notifications

scrolls/guard.rb

@@ -1,5 +1,3 @@
-gem 'guard', :group => :development
-
 prepend_file 'Gemfile' do <<-RUBY
 require 'rbconfig'
 HOST_OS = RbConfig::CONFIG['host_os']
@@ -9,42 +7,45 @@
 
 append_file 'Gemfile' do <<-RUBY
 
-case HOST_OS
-when /darwin/i
-  gem 'rb-fsevent', :group => :development
-when /linux/i
-  gem 'libnotify', :group => :development
-  gem 'rb-inotify', :group => :development
-when /mswin|windows/i
-  gem 'rb-fchange', :group => :development
-  gem 'win32console', :group => :development
-  gem 'rb-notifu', :group => :development
+guard_notifications = #{config['guard_notifications'].inspect}
+group :development do
+  case HOST_OS
+  when /darwin/i
+    gem 'rb-fsevent'
+    gem 'ruby_gntp' if guard_notifications
+  when /linux/i
+    gem 'libnotify'
+    gem 'rb-inotify'
+  when /mswin|windows/i
+    gem 'rb-fchange'
+    gem 'win32console'
+    gem 'rb-notifu' if guard_notifications
+  end
 end
-
 RUBY
 end
 
-# LiveReload
 
-gem 'guard-livereload'
-gem_group :development do
-  gem 'yajl-ruby'
-  gem 'rack-livereload'
-end
+# LiveReload
 
 application nil, :env => "development" do
   "config.middleware.insert_before(Rack::Lock, Rack::LiveReload)"
 end
 
-# Guard for other Scrolls
+gem_group :development do
+  gem 'guard-livereload'
+  gem 'yajl-ruby'
+  gem 'rack-livereload'
 
-gem 'guard-bundler'
+# Guard for other Scrolls
 
-gem 'guard-test' if scrolls.include? 'test_unit'
+  gem 'guard-bundler'
+  gem 'guard-test' if scrolls.include? 'test_unit'
 
-KNOWN_GUARD_SCROLLS = %w[cucumber haml less passenger puma redis resque rspec unicorn]
-KNOWN_GUARD_SCROLLS.each do |scroll|
-  gem "guard-#{scroll}" if scrolls.include? scroll
+  KNOWN_GUARD_SCROLLS = %w[cucumber haml less passenger puma redis resque rspec unicorn]
+  KNOWN_GUARD_SCROLLS.each do |scroll|
+    gem "guard-#{scroll}" if scrolls.include? scroll
+  end
 end
 
 after_bundler do
@@ -66,7 +67,7 @@
 category: other
 # exclusive: 
 
-# config:
-#   - foo:
-#       type: boolean
-#       prompt: "Is foo true?"
+config:
+  - guard_notifications:
+      type: boolean
+      prompt: "Enable desktop Guard/Growl notifications?"