Actually sets :jsmin as DEFAULT_JAVASCRIPT_COMPRESSOR AND :cssmin as DEFAULT_CSS_COMPRESSOR. They both are loaded inside lib/jammit/dependencies.rb

Author: didip

lib/jammit.rb

@@ -24,11 +24,11 @@ module Jammit
 
   JAVASCRIPT_COMPRESSORS        = [:jsmin, :yui, :closure, :uglifier]
 
-  DEFAULT_JAVASCRIPT_COMPRESSOR = :yui
+  DEFAULT_JAVASCRIPT_COMPRESSOR = :jsmin
 
   CSS_COMPRESSORS               = [:cssmin, :yui, :sass]
 
-  DEFAULT_CSS_COMPRESSOR        = :yui
+  DEFAULT_CSS_COMPRESSOR        = :cssmin
 
   # Extension matchers for JavaScript and JST, which need to be disambiguated.
   JS_EXTENSION          = /\.js\Z/
@@ -93,6 +93,7 @@ def self.load_configuration(config_path, soft=false)
     @compressor_options     = symbolize_keys(conf[:compressor_options] || {})
     @css_compressor_options = symbolize_keys(conf[:css_compressor_options] || {})
     set_javascript_compressor(conf[:javascript_compressor])
+    set_css_compressor(conf[:css_compressor])
     set_package_assets(conf[:package_assets])
     set_template_function(conf[:template_function])
     set_template_namespace(conf[:template_namespace])

lib/jammit/dependencies.rb

@@ -42,6 +42,8 @@
 Jammit.load_configuration(Jammit::DEFAULT_CONFIG_PATH, true) if defined?(Rails)
 
 # Jammit Core:
+require 'jsmin'
+require 'cssmin'
 require 'jammit/jsmin_compressor'
 require 'jammit/cssmin_compressor'
 require 'jammit/compressor'