Rakefile in mini_mime-0.1.3 vs Rakefile in mini_mime-0.1.4

@@ -44,16 +44,13 @@
   end
 
   buffer = []
 
   index.each do |ext, list|
-    mime_type = nil
-    list.each do |type|
-      mime_type = type
-      break unless type.obsolete?
-    end
-    mime_type = list.first if mime_type.obsolete?
+    mime_type = list.detect { |t| !t.obsolete? }
+    mime_type ||= list.detect(&:registered)
+    mime_type ||= list.first
     buffer << [ext.dup, mime_type.content_type.dup, mime_type.encoding.dup]
   end
 
   pad(buffer)
 
@@ -65,10 +62,24 @@
     end
   end
 
   puts "#{buffer.count} rows written to lib/db/ext_mime.db"
 
-  buffer.sort!{|a,b| a[1] <=> b[1]}
+  buffer.sort!{|a,b| [a[1], a[0]] <=> [b[1], b[0]]}
+
+  # strip cause we are going to re-pad
+  buffer.each do |row|
+    row.each do |col|
+      col.strip!
+    end
+  end
+
+  # we got to confirm we pick the right extension for each type
+  buffer.each do |row|
+    row[0] = MIME::Types.type_for("xyz.#{row[0].strip}")[0].extensions[0].dup
+  end
+
+  pad(buffer)
 
   File.open("lib/db/content_type_mime.db", File::CREAT|File::TRUNC|File::RDWR) do |f|
     last = nil
     count = 0
     buffer.each do |row|