added check for empty files in usearch.rb

git-svn-id: http://biopieces.googlecode.com/svn/trunk@1770 74ccb610-7750-0410-82ae-013aeee3265d

diff --git a/code_ruby/lib/maasha/usearch.rb b/code_ruby/lib/maasha/usearch.rb
index 2ce65489267a3db684c568b0b5aa7a2be0c69a3d..c821cac5c0036aea8df7511fada127d82c7b8dcb 100644 (file)
--- a/code_ruby/lib/maasha/usearch.rb
+++ b/code_ruby/lib/maasha/usearch.rb
@@ -37,6 +37,8 @@ class Usearch
     @outfile = outfile
     @options = options
     @command = []
+
+    raise UsearchError, %{Empty input file -> "#{@infile}"} if File.size(@infile) == 0
   end
 
   # Method that calls Usearch sorting for sorting a FASTA file