Tiltfile

def procfile_resources(procfile='Procfile', set_port=False, starting_port=5000):
  """
  Creates local resources from a Procfile (e.g., as defined by Foreman: http://blog.daviddollar.org/2011/05/06/introducing-foreman.html)

  See also: local resource docs: https://docs.tilt.dev/local_resource.html

  Args:
    procfile (Str): the path to the Procfile to load
    set_port (Bool): if True, give each process a unique $PORT value
    starting_port (Int): the number from which to start assigning ports
  """ 
  port = starting_port
  lines = str(read_file(procfile)).splitlines()
  for line in lines:
    (name, cmd) = line.split(': ', 2)
    if set_port:
      # ideally local_resource would have an env option so that this wouldn't
      # show up in logs as the command being run (and then we could default
      # set_port to True)
      cmd = 'PORT=%d %s' % (port, cmd)
    local_resource(name, serve_cmd=cmd)
    port += 1