73 lines
2.1 KiB
Python
73 lines
2.1 KiB
Python
# Copyright 2025 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import logging
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import os
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import tempfile
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import time
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LOGGING_FORMAT = (
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'%(asctime)s - %(levelname)s - %(filename)s:%(lineno)d - %(message)s'
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)
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def log_to_stderr(level=logging.INFO):
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logging.basicConfig(
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level=level,
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format=LOGGING_FORMAT,
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)
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def log_to_tmp_folder(
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level=logging.INFO,
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*,
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sub_folder: str = 'agents_log',
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log_file_prefix: str = 'agent',
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log_file_timestamp: str = time.strftime('%Y%m%d_%H%M%S'),
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):
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"""Logs to system temp folder, instead of logging to stderr.
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Args
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sub_folder: str = 'agents_log',
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log_file_prefix: str = 'agent',
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log_file_timestamp: str = time.strftime('%Y%m%d_%H%M%S'),
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Returns
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the log file path.
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"""
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log_dir = os.path.join(tempfile.gettempdir(), sub_folder)
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log_filename = f'{log_file_prefix}.{log_file_timestamp}.log'
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log_filepath = os.path.join(log_dir, log_filename)
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os.makedirs(log_dir, exist_ok=True)
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file_handler = logging.FileHandler(log_filepath, mode='w')
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file_handler.setLevel(level)
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file_handler.setFormatter(logging.Formatter(LOGGING_FORMAT))
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root_logger = logging.getLogger()
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root_logger.setLevel(level)
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root_logger.handlers = [] # Clear handles to disable logging to stderr
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root_logger.addHandler(file_handler)
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print(f'Log setup complete: {log_filepath}')
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latest_log_link = os.path.join(log_dir, f'{log_file_prefix}.latest.log')
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if os.path.islink(latest_log_link):
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os.unlink(latest_log_link)
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os.symlink(log_filepath, latest_log_link)
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print(f'To access latest log: tail -F {latest_log_link}')
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return log_filepath
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