refactor each_line detect to detect all diff file

app/views/commits/_text_file.html.haml

 %table
   - line_old = 0
   - line_new = 0
-  - lines_arr = diff.diff.lines.to_a
+  - diff_str = encode(diff.diff)
+  - lines_arr = diff_str.lines.to_a
   - lines_arr.each do |line|
-    - line = encode(line)
     - next if line.match(/^--- \/dev\/null/)
     - next if line.match(/^--- a/)
     - next if line.match(/^\+\+\+ b/)
@@ -18,7 +18,7 @@
         = link_to raw(diff_line_class(line) == "new" ? " " : line_old), "#OLD#{index}-#{line_old}", :id => "OLD#{index}-#{line_old}"
       %td.new_line
         = link_to raw(diff_line_class(line) == "old" ? " " : line_new) , "#NEW#{index}-#{line_new}", :id => "NEW#{index}-#{line_new}"
-      %td.line_content{:class => diff_line_class(full_line)}= raw "#{full_line}  "  
+      %td.line_content{:class => diff_line_class(full_line)}= raw "#{full_line}  "
     - if line[0] == "+"
       - line_new += 1
     - elsif line[0] == "-"

lib/utils.rb

@@ -23,6 +23,8 @@ module Utils
         string.force_encoding(cd.encoding)
       end
       string.encode("utf-8", :undef => :replace, :replace => "?", :invalid => :replace)
+    rescue
+      "Invalid code encoding"
     end
   end