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https://github.com/trezor/trezor-firmware.git
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59ba113b07
this way logger is properly nested even when the library is used as submodule (e.g. HWI) see https://github.com/bitcoin-core/HWI/pull/697
76 lines
2.2 KiB
Python
76 lines
2.2 KiB
Python
# This file is part of the Trezor project.
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#
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# Copyright (C) 2012-2022 SatoshiLabs and contributors
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#
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# This library is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License version 3
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# as published by the Free Software Foundation.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the License along with this library.
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# If not, see <https://www.gnu.org/licenses/lgpl-3.0.html>.
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import logging
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from typing import Optional, Set, Type
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from typing_extensions import Protocol, runtime_checkable
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from . import protobuf
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@runtime_checkable
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class HasProtobuf(Protocol):
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protobuf: protobuf.MessageType
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OMITTED_MESSAGES: Set[Type[protobuf.MessageType]] = set()
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DUMP_BYTES = 5
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DUMP_PACKETS = 4
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logging.addLevelName(DUMP_BYTES, "BYTES")
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logging.addLevelName(DUMP_PACKETS, "PACKETS")
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class PrettyProtobufFormatter(logging.Formatter):
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def format(self, record: logging.LogRecord) -> str:
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time = self.formatTime(record)
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message = "[{time}] {source} {level}: {msg}".format(
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time=time,
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level=record.levelname.upper(),
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source=record.name,
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msg=super().format(record),
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)
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if isinstance(record, HasProtobuf):
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if type(record.protobuf) in OMITTED_MESSAGES:
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message += f" ({record.protobuf.ByteSize()} bytes)"
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else:
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message += "\n" + protobuf.format_message(record.protobuf)
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return message
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def enable_debug_output(
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verbosity: int = 1, handler: Optional[logging.Handler] = None
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) -> None:
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if handler is None:
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handler = logging.StreamHandler()
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formatter = PrettyProtobufFormatter()
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handler.setFormatter(formatter)
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level = logging.NOTSET
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if verbosity > 0:
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level = logging.DEBUG
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if verbosity > 1:
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level = DUMP_BYTES
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if verbosity > 2:
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level = DUMP_PACKETS
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logger = logging.getLogger(__name__.rsplit(".", 1)[0])
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logger.setLevel(level)
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logger.addHandler(handler)
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