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artiq/artiq/frontend/artiq_coreconfig.py

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Python
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#!/usr/bin/env python3.5
import argparse
import struct
from artiq.tools import verbosity_args, init_logger
from artiq.master.databases import DeviceDB
from artiq.master.worker_db import DeviceManager
def get_argparser():
parser = argparse.ArgumentParser(description="ARTIQ core device "
"configuration tool")
verbosity_args(parser)
parser.add_argument("--device-db", default="device_db.pyon",
help="device database file (default: '%(default)s')")
subparsers = parser.add_subparsers(dest="action")
subparsers.required = True
p_read = subparsers.add_parser("read",
help="read key from core device config")
p_read.add_argument("key", metavar="KEY", type=str,
help="key to be read from core device config")
p_write = subparsers.add_parser("write",
help="write key-value records to core "
"device config")
p_write.add_argument("-s", "--string", nargs=2, action="append",
default=[], metavar=("KEY", "STRING"), type=str,
help="key-value records to be written to core device "
"config")
p_write.add_argument("-f", "--file", nargs=2, action="append",
type=str, default=[],
metavar=("KEY", "FILENAME"),
help="key and file whose content to be written to "
"core device config")
p_delete = subparsers.add_parser("delete",
help="delete key from core device config")
p_delete.add_argument("key", metavar="KEY", nargs=argparse.REMAINDER,
default=[], type=str,
help="key to be deleted from core device config")
subparsers.add_parser("erase", help="fully erase core device config")
return parser
def main():
args = get_argparser().parse_args()
init_logger(args)
device_mgr = DeviceManager(DeviceDB(args.device_db))
try:
comm = device_mgr.get("comm")
comm.check_ident()
if args.action == "read":
value = comm.flash_storage_read(args.key)
if not value:
print("Key {} does not exist".format(args.key))
else:
print(value)
elif args.action == "write":
for key, value in args.string:
comm.flash_storage_write(key, value.encode("utf-8"))
for key, filename in args.file:
with open(filename, "rb") as fi:
comm.flash_storage_write(key, fi.read())
elif args.action == "delete":
for key in args.key:
comm.flash_storage_remove(key)
elif args.action == "erase":
comm.flash_storage_erase()
finally:
device_mgr.close_devices()
if __name__ == "__main__":
main()