Fixed encoding problems with plain/text blobs being sent without charset.

app/controllers/refs_controller.rb

 class RefsController < ApplicationController
+  include Gitlabhq::Encode
   before_filter :project
   # Authorize
@@ -49,9 +50,16 @@ class RefsController < ApplicationController
   def blob
     if @tree.is_blob?
+      if @tree.text?
+        encoding = detect_encoding(@tree.data)
+        mime_type = encoding ? "text/plain; charset=#{encoding}" : "text/plain"
+      else
+        mime_type = @tree.mime_type
+      end
+
       send_data(
         @tree.data,
-        :type => @tree.text? ? "text/plain" : @tree.mime_type,
+        :type => mime_type,
         :disposition => 'inline',
         :filename => @tree.name
       )

lib/gitlabhq/encode.rb

@@ -5,9 +5,9 @@ module Gitlabhq
     def utf8 message
       return nil unless message
-      hash = CharlockHolmes::EncodingDetector.detect(message) rescue {}
-      if hash[:encoding]
-        CharlockHolmes::Converter.convert(message, hash[:encoding], 'UTF-8')
+      encoding = detect_encoding(message)
+      if encoding
+        CharlockHolmes::Converter.convert(message, encoding, 'UTF-8')
       else
         message
       end.force_encoding("utf-8")
@@ -16,5 +16,12 @@ module Gitlabhq
     rescue
       ""
     end
+
+    def detect_encoding message
+      return nil unless message
+
+      hash = CharlockHolmes::EncodingDetector.detect(message) rescue {}
+      return hash[:encoding] ? hash[:encoding] : nil
+    end
   end
 end