new_contents: from spack import *
  
  class Damselfly(Package):
      """Damselfly is a model-based parallel network simulator."""
      homepage = "https://github.com/scalability-llnl/damselfly"
      url      = "https://github.com/scalability-llnl/damselfly"
  
      version('1.0', '05cf7e2d8ece4408c0f2abb7ab63fd74c0d62895', git='https://github.com/scalability-llnl/damselfly.git', tag='v1.0')
  
      def install(self, spec, prefix):
          with working_dir('spack-build', create=True):
  	    cmake('-DCMAKE_BUILD_TYPE=release', '..', *std_cmake_args)
  	    make()
  	    make('install')
  
subject: Add damselfly package