Change FileBlob to accept a base path

lib/linguist/file_blob.rb

@@ -4,8 +4,9 @@ module Linguist
   class FileBlob
     include BlobHelper
 
-    def initialize(path, name = path)
-      @path, @name = path, name
+    def initialize(path, base_path = nil)
+      @path = path
+      @name = base_path ? path.sub("#{base_path}/", '') : path
     end
 
     attr_reader :name

lib/linguist/repository.rb

@@ -10,8 +10,8 @@ module Linguist
     def self.from_directory(base_path)
       paths = Dir["#{base_path}/**/*"].inject({}) do |h, path|
         if File.file?(path)
-          name    = path.sub("#{base_path}/", '')
-          h[name] = FileBlob.new(path, name)
+          blob = FileBlob.new(path, base_path)
+          h[blob.name] = blob
         end
         h
       end