| 1 | #!/usr/bin/env python3 |
| 2 | # SPDX-License-Identifier: GPL-2.0+ |
| 3 | |
| 4 | """ |
| 5 | Determines how many parallel tasks "make" is expecting, as it is |
| 6 | not exposed via any special variables, reserves them all, runs a subprocess |
| 7 | with PARALLELISM environment variable set, and releases the jobs back again. |
| 8 | |
| 9 | See: |
| 10 | https://www.gnu.org/software/make/manual/html_node/POSIX-Jobserver.html#POSIX-Jobserver |
| 11 | """ |
| 12 | |
| 13 | import os |
| 14 | import sys |
| 15 | |
| 16 | LIB_DIR = "../tools/lib/python" |
| 17 | SRC_DIR = os.path.dirname(os.path.realpath(__file__)) |
| 18 | |
| 19 | sys.path.insert(0, os.path.join(SRC_DIR, LIB_DIR)) |
| 20 | |
| 21 | from jobserver import JobserverExec # pylint: disable=C0415 |
| 22 | |
| 23 | |
| 24 | def main(): |
| 25 | """Main program""" |
| 26 | if len(sys.argv) < 2: |
| 27 | name = os.path.basename(__file__) |
| 28 | sys.exit("usage: " + name +" command [args ...]\n" + __doc__) |
| 29 | |
| 30 | with JobserverExec() as jobserver: |
| 31 | return jobserver.run(sys.argv[1:]) |
| 32 | |
| 33 | |
| 34 | if __name__ == "__main__": |
| 35 | sys.exit(main()) |