class Jars::MavenExec

def find_spec(allow_no_file)
  specs = Dir['*.gemspec']
  case specs.size
  when 0
    raise 'no gemspec found' unless allow_no_file
  when 1
    specs.first
  else
    raise 'more then one gemspec found. please specify a specfile' unless allow_no_file
  end
end