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# SPDX-FileCopyrightText: Peter Pentchev <roam@ringlet.net>
# SPDX-License-Identifier: BSD-2-Clause
"""Common utilities for the check-build library."""
import functools
import logging
import sys
@functools.lru_cache(maxsize=2)
def build_logger(*, verbose: bool) -> logging.Logger:
"""Build a logger that outputs messages to the standard output stream."""
name_prefix = "" if verbose else "non-"
logger = logging.getLogger(f"check-build/{name_prefix}verbose")
logger.setLevel(logging.DEBUG)
stdout_handler = logging.StreamHandler(stream=sys.stdout)
stdout_handler.addFilter(lambda record: record.levelno == logging.INFO)
stdout_handler.setLevel(logging.INFO)
logger.addHandler(stdout_handler)
stderr_handler = logging.StreamHandler(stream=sys.stderr)
if verbose:
stderr_handler.addFilter(lambda record: record.levelno != logging.INFO)
stderr_handler.setLevel(logging.DEBUG)
else:
stderr_handler.setLevel(logging.WARNING)
logger.addHandler(stderr_handler)
return logger
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