new_contents: #!/usr/bin/env python3
  
  import argparse
  import os
  import shutil
  import subprocess
  import sys
  
  script_dir = os.path.dirname(sys.argv[0])
  src_dir = os.path.join(script_dir, 'ext/src')
  dest_openmesh_dir = os.path.join(script_dir, 'ext/third_party/openmesh/OpenMesh')
  
  ap = argparse.ArgumentParser()
  ap.add_argument('openmesh_directory', help='Path to OpenMesh root directory')
  args = ap.parse_args()
  
  openmesh_dir = os.path.abspath(args.openmesh_directory)
  
  deps = subprocess.check_output(
      ['gcc', '-pthread', '-I', os.path.join(openmesh_dir, 'src'), '-c', 'openmesh_dependencies.cc',
       'on_demand_object_mesh_generator.cc', '-MM', '-MF', '/dev/stdout',
       '-fopenmp', '-std=c++11'], cwd=src_dir).split()
  deps = [x[len(openmesh_dir)+1:] for x in deps if x.startswith(openmesh_dir + '/')] + ['LICENSE', 'VERSION']
  
  if os.path.exists(dest_openmesh_dir):
    shutil.rmtree(dest_openmesh_dir)
  
  for dep in deps:
    dest_path = os.path.join(dest_openmesh_dir, dep)
    dest_dir = os.path.dirname(dest_path)
    if not os.path.exists(dest_dir):
      os.makedirs(dest_dir)
    shutil.copyfile(os.path.join(openmesh_dir, dep), dest_path)
  
subject: add copy_openmesh_deps.py script for copying required OpenMesh sources