Prefer aliases over shebang config

lib/linguist/blob_helper.rb

@@ -353,12 +353,6 @@ module Linguist
       end
     end
 
-    shebangs = YAML.load_file(File.expand_path("../shebangs.yml", __FILE__))
-    Shebangs = shebangs.inject({}) { |h, (name, scripts)|
-      scripts.each { |script| h[script] = Language[name] }
-      h
-    }
-
     # Internal: Get Language for shebang script
     #
     # Matches script name with shebang script name mappings in "shebangs.yml"
@@ -366,12 +360,8 @@ module Linguist
     # Returns the Language or nil
     def shebang_language
       if script = shebang_script
-        if lang = Shebangs[script]
+        lang = Language[script]
-          lang
+        lang != Language['Text'] ? lang : nil
-        else
-          lang = Language[script]
-          lang != Language['Text'] ? lang : nil
-        end
       end
     end
 

lib/linguist/languages.yml

@@ -271,6 +271,7 @@ Groovy:
 JavaScript:
   :aliases:
   - js
+  - node
   :ext:
   - .js
   - .sjs
@@ -334,6 +335,8 @@ Myghty:
   - .myt
 Nu:
   :lexer: scheme
+  :aliases:
+  - nush
   :ext:
   - .nu
   - Nukefile
@@ -437,6 +440,11 @@ Redcode:
   :ext:
   - .cw
 Ruby:
+  :aliases:
+  - jruby
+  - macruby
+  - rake
+  - rbx
   :ext:
   - .rb
   - .ru

lib/linguist/shebangs.yml

@@ -1,23 +0,0 @@
-# Maps shebang script names to Language names
-#
-# Language names are implicitly mapped to their downcased versions,
-# so this would be redundant:
-#
-#   Ruby:
-#   - ruby
-
-Java:
-- groovy
-
-# JavaScript interpreters
-JavaScript:
-- node
-
-# Ruby interpreters and runners
-Ruby:
-- macruby
-- rake
-
-# Nu shell
-Nu:
-- nush