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artiq_coreconfig: use subparsers for arg parsing

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This commit is contained in:
Yann Sionneau 2015-06-17 16:40:27 +02:00
parent 2f8a67c8b6
commit afc70926d7
1 changed files with 36 additions and 28 deletions
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64
artiq/frontend/artiq_coreconfig.py
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@ -13,20 +13,30 @@ def to_bytes(string):
def get_argparser(): def get_argparser():
parser = argparse.ArgumentParser(description="ARTIQ core device config " parser = argparse.ArgumentParser(description="ARTIQ core device config "
"remote access") "remote access")
parser.add_argument("-r", "--read", type=to_bytes, subparsers = parser.add_subparsers(dest="action")
help="read key from core device config") subparsers.required = True
parser.add_argument("-w", "--write", nargs=2, action="append", default=[], p_read = subparsers.add_parser("read",
metavar=("KEY", "STRING"), type=to_bytes, help="read key from core device config")
help="write key-value records to core device config") p_read.add_argument("-k", "--key", type=to_bytes, required=True,
parser.add_argument("-f", "--write-file", nargs=2, action="append", help="key to be read from core device config")
type=to_bytes, default=[], metavar=("KEY", "FILENAME"), p_write = subparsers.add_parser("write",
help="write the content of a file into core device " help="write key-value records to core "
"config") "device config")
parser.add_argument("-e", "--erase", action="store_true", p_write.add_argument("-s", "--string", nargs=2, action="append",
help="erase core device config") default=[], metavar=("KEY", "STRING"), type=to_bytes,
parser.add_argument("-d", "--delete", action="append", default=[], help="key-value records to be written to core device "
type=to_bytes, "config")
help="delete key from core device config") p_write.add_argument("-f", "--file", nargs=2, action="append",
type=to_bytes, default=[],
metavar=("KEY", "FILENAME"),
help="key and file whose content to be written to "
"core device config")
subparsers.add_parser("erase", help="erase core device config")
p_delete = subparsers.add_parser("delete",
help="delete key from core device config")
p_delete.add_argument("-k", "--key", action="append", default=[],
type=to_bytes, required=True,
help="key to be deleted from core device config")
parser.add_argument("--ddb", default="ddb.pyon", parser.add_argument("--ddb", default="ddb.pyon",
help="device database file") help="device database file")
return parser return parser
@ -37,25 +47,23 @@ def main():
ddb = FlatFileDB(args.ddb) ddb = FlatFileDB(args.ddb)
comm = create_device(ddb.request("comm"), None) comm = create_device(ddb.request("comm"), None)
if args.read: if args.action == "read":
value = comm.flash_storage_read(args.read) value = comm.flash_storage_read(args.key)
if not value: if not value:
print("Key {} does not exist".format(args.read)) print("Key {} does not exist".format(args.key))
else: else:
print(value) print(value)
elif args.erase: elif args.action == "erase":
comm.flash_storage_erase() comm.flash_storage_erase()
elif args.delete: elif args.action == "delete":
for key in args.delete: for key in args.key:
comm.flash_storage_remove(key) comm.flash_storage_remove(key)
else: elif args.action == "write":
if args.write: for key, value in args.string:
for key, value in args.write: comm.flash_storage_write(key, value)
comm.flash_storage_write(key, value) for key, filename in args.file:
if args.write_file: with open(filename, "rb") as fi:
for key, filename in args.write_file: comm.flash_storage_write(key, fi.read())
with open(filename, "rb") as fi:
comm.flash_storage_write(key, fi.read())
if __name__ == "__main__": if __name__ == "__main__":
main() main()