new_contents: ##############################################################################
  # Copyright (c) 2013-2018, Lawrence Livermore National Security, LLC.
  # Produced at the Lawrence Livermore National Laboratory.
  #
  # This file is part of Spack.
  # Created by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
  # LLNL-CODE-647188
  #
  # For details, see https://github.com/spack/spack
  # Please also see the NOTICE and LICENSE files for our notice and the LGPL.
  #
  # This program is free software; you can redistribute it and/or modify
  # it under the terms of the GNU Lesser General Public License (as
  # published by the Free Software Foundation) version 2.1, February 1999.
  #
  # This program is distributed in the hope that it will be useful, but
  # WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
  # conditions of the GNU Lesser General Public License for more details.
  #
  # You should have received a copy of the GNU Lesser General Public
  # License along with this program; if not, write to the Free Software
  # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  ##############################################################################
  from spack import *
  
  
  class Lsof(Package):
      """Lsof displays information about files open to Unix processes."""
  
      homepage = "https://people.freebsd.org/~abe/"
      url      = "https://www.mirrorservice.org/sites/lsof.itap.purdue.edu/pub/tools/unix/lsof/lsof_4.89.tar.gz"
  
      version('4.89', '8afbaff3ee308edc130bdc5df0801c8f')
  
      def install(self, spec, prefix):
          tar = which('tar')
          tar('xf', 'lsof_{0}_src.tar'.format(self.version))
  
          with working_dir('lsof_{0}_src'.format(self.version)):
              configure = Executable('./Configure')
              configure('-n', 'linux')
  
              make()
  
              mkdir(prefix.bin)
              install('lsof', prefix.bin)
  
subject: create new package (#7660)