#!/usr/bin/env python3# SPDX-License-Identifier: GPL-2.0+ """Determines how many parallel tasks "make" is expecting, as it isnot exposed via any special variables, reserves them all, runs a subprocesswith PARALLELISM environment variable set, and releases the jobs back again. See:    https://www.gnu.org/software/make/manual/html_node/POSIX-Jobserver.html#POSIX-Jobserver""" import osimport sys LIB_DIR = "../tools/lib/python"SRC_DIR = os.path.dirname(os.path.realpath(__file__)) sys.path.insert(0, os.path.join(SRC_DIR, LIB_DIR)) from jobserver import JobserverExec                  # pylint: disable=C0415  def main():    """Main program"""    if len(sys.argv) < 2:        name = os.path.basename(__file__)        sys.exit("usage: " + name +" command [args ...]\n" + __doc__)     with JobserverExec() as jobserver:        jobserver.run(sys.argv[1:])  if __name__ == "__main__":    main()