which.rb

# -*- encoding: utf-8 -*-

#
# taken from perl
# my bad perl habits aren't so easy to stomp out...tsk, tsk...
# 
module File::Which
  
  #
  # Returns the full path to the executable
  # @param exec [String] The name of the executable
  # @return the full path to the executable
  def self.which(exec)
    begin
      ENV['PATH'].split(File::PATH_SEPARATOR).any? do |pdir|
        next unless File.executable?(File.join(pdir, exec))
        return File.join(pdir, exec)
      end
      nil
    rescue Exception
      raise
    end
  end

end