Commit a84a5d0b authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab Committed by Jonathan Corbet
Browse files

scripts/jobserver-exec: add a help message 



Currently, calling it without an argument shows an ugly error
message. Instead, print a message using pythondoc as description.

Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
Message-ID: <64b0339eac54ac0f2b3de3667a7f4f5becb1c6ae.1758196090.git.mchehab+huawei@kernel.org>
Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
parent fce6df7e

scripts/jobserver-exec

+13 −9
Original line number Diff line number Diff line 
#!/usr/bin/env python3

# SPDX-License-Identifier: GPL-2.0+



"""

Determines how many parallel tasks "make" is expecting, as it is

not exposed via any special variables, reserves them all, runs a subprocess

with 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 os

import sys
@@ -12,17 +21,12 @@ sys.path.insert(0, os.path.join(SRC_DIR, LIB_DIR)) 
from jobserver import JobserverExec                  # pylint: disable=C0415





"""

Determines how many parallel tasks "make" is expecting, as it is

not exposed via an special variables, reserves them all, runs a subprocess

with 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

"""



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:])