lib/acouchi/which.rb in acouchi-0.0.4 vs lib/acouchi/which.rb in acouchi-0.0.5

@@ -1,22 +1,23 @@
 module Acouchi
   class Which
-    def self.which? command
-      exts = ENV['PATHEXT'] ? ENV['PATHEXT'].split(';') : ['']
-      ENV['PATH'].split(File::PATH_SEPARATOR).each do |path|
-        exts.each { |ext|
-          exe = "#{path}/#{command}#{ext}"
-          return exe if File.executable? exe
-        }
-      end
-      return nil
-    end
-
     def self.find_executable *aliases
       if executable = aliases.find {|a| which? a}
         executable
       else
         raise %{Couldn't find any matches for the aliases "#{aliases.join(", ")}"}
       end
     end
+
+    private
+      def self.which? command
+        exts = ENV['PATHEXT'] ? ENV['PATHEXT'].split(';') : ['']
+        ENV['PATH'].split(File::PATH_SEPARATOR).each do |path|
+          exts.each { |ext|
+            exe = "#{path}/#{command}#{ext}"
+            return exe if File.executable? exe
+          }
+        end
+        return nil
+      end
   end
 end