51 lines
1.5 KiB
Python
Executable File
51 lines
1.5 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
import argparse
|
|
from pathlib import Path
|
|
from typing import Union
|
|
import plyvel
|
|
import json
|
|
from sys import stdout
|
|
import base64
|
|
|
|
|
|
parser = argparse.ArgumentParser()
|
|
encoding_names = ["utf8", "base16", "base32", "base64", "base85"]
|
|
parser.add_argument("--encoding", "-e", choices=encoding_names, default="utf8")
|
|
parser.add_argument("--key-encoding", choices=encoding_names, default=None)
|
|
parser.add_argument("--value-encoding", choices=encoding_names, default=None)
|
|
parser.add_argument("db_path", type=Path)
|
|
cli_args = parser.parse_args()
|
|
|
|
|
|
def bytes_to_json(b: bytes, encoding: str) -> Union[str, list[int]]:
|
|
if encoding == "utf8":
|
|
try:
|
|
return b.decode("utf8")
|
|
except UnicodeDecodeError:
|
|
return list(b)
|
|
elif encoding == "base16":
|
|
return base64.b16encode(b).decode("ascii")
|
|
elif encoding == "base32":
|
|
return base64.b32encode(b).decode("ascii")
|
|
elif encoding == "base64":
|
|
return base64.b64encode(b).decode("ascii")
|
|
elif encoding == "base85":
|
|
return base64.b85encode(b).decode("ascii")
|
|
else:
|
|
assert False
|
|
|
|
|
|
key_encoding: str = cli_args.key_encoding or cli_args.encoding
|
|
value_encoding: str = cli_args.value_encoding or cli_args.encoding
|
|
db = plyvel.DB(str(cli_args.db_path), create_if_missing=False)
|
|
with db.iterator() as iterator:
|
|
for key, value in iterator:
|
|
json.dump(
|
|
{
|
|
"key": bytes_to_json(key, key_encoding),
|
|
"value": bytes_to_json(value, value_encoding),
|
|
},
|
|
stdout,
|
|
)
|
|
stdout.write("\n")
|