From a08dfff907e99d3c81648408e4b078950ecd7ee0 Mon Sep 17 00:00:00 2001
From: Alex MacCaw <alex@stripe.com>
Date: Fri, 17 Aug 2012 09:32:55 -0700
Subject: [PATCH] allow CJS as a ext

---
 examples/example.js                                    | 2 +-
 examples/modules/{program.module.js => program.cjs.js} | 0
 lib/sprockets/commonjs.rb                              | 6 ++++--
 3 files changed, 5 insertions(+), 3 deletions(-)
 rename examples/modules/{program.module.js => program.cjs.js} (100%)

diff --git a/examples/example.js b/examples/example.js
index 7fad25b..be25fca 100644
--- a/examples/example.js
+++ b/examples/example.js
@@ -58,7 +58,7 @@
 
   return this.require;
 }).call(this);
-this.require.define({"modules/program":function(exports, require, module){module.exports = function(){
+this.require.define({"modules/program.cjs":function(exports, require, module){module.exports = function(){
   alert('Long live the Programs!');
 };
 ;}});
diff --git a/examples/modules/program.module.js b/examples/modules/program.cjs.js
similarity index 100%
rename from examples/modules/program.module.js
rename to examples/modules/program.cjs.js
diff --git a/lib/sprockets/commonjs.rb b/lib/sprockets/commonjs.rb
index 09e3509..ed73299 100644
--- a/lib/sprockets/commonjs.rb
+++ b/lib/sprockets/commonjs.rb
@@ -4,11 +4,13 @@
 module Sprockets
   class CommonJS < Tilt::Template
 
-    DEFINE_WRAPPER = '%s.define({%s:' +
+    WRAPPER = '%s.define({%s:' +
                      'function(exports, require, module){' +
                      '%s' +
                      ";}});\n"
 
+    EXTENSIONS = %w{.module .cjs}
+
     class << self
       attr_accessor :default_namespace
     end
@@ -36,7 +38,7 @@ def evaluate(scope, locals, &block)
     attr_reader :namespace
 
     def commonjs_module?(scope)
-      File.extname(scope.logical_path) == '.module'
+      EXTENSIONS.include?(File.extname(scope.logical_path))
     end
 
     def module_name(scope)