mirror of
https://github.com/trezor/trezor-firmware.git
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52 lines
1.8 KiB
Python
52 lines
1.8 KiB
Python
# This file is part of the Trezor project.
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#
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# Copyright (C) 2012-2018 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 . import protobuf
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OMITTED_MESSAGES = set() # type: Set[Type[protobuf.MessageType]]
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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 hasattr(record, "protobuf"):
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if type(record.protobuf) in OMITTED_MESSAGES:
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message += " ({} bytes)".format(record.protobuf.ByteSize())
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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(handler: Optional[logging.Handler] = 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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logger = logging.getLogger("trezorlib")
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logger.setLevel(logging.DEBUG)
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logger.addHandler(handler)
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