class Raykit::Installer

def self.make_msi(wxs_file, source_dir, msi_filename)
  name = "#{File.basename(wxs_file, ".wxs")}"
  FileUtils.cp(wxs_file, "#{source_dir}/#{File.basename(wxs_file)}")
  Dir.chdir(source_dir) do
    run("candle #{File.basename(wxs_file)}")
    run("light #{name}.wixobj")
    FileUtils.cp("#{name}.msi", msi_filename)
    raise "#{msi_filename} does not exist" if !File.exists?(msi_filename)
    File.delete("#{name}.wixobj")
  end
end