/
logging_.py
107 lines (77 loc) · 3.27 KB
/
logging_.py
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"""Stdlib logging configuration short-cuts."""
import logging
import logging.config
__all__ = ['configure_logging',
'configure_logging_from_file']
WARNINGS = 'py.warnings'
SQL = 'sqlalchemy.engine'
FORMAT = '[%(levelname)s@%(name)s] %(message)s'
log = logging.getLogger(__name__)
def configure_logging_from_file(path, *,
level=None,
log_sql=None,
capture_warnings=True,
reset=True):
if reset:
reset_logging()
log.debug('logging.config.fileConfig(%r)', path)
logging.config.fileConfig(path, disable_existing_loggers=reset)
package_logger = logging.getLogger(__package__)
if level is not None: # pragma: no cover
if not package_logger.handlers:
log.debug('set level of %r to %r', package_logger, level)
package_logger.setLevel(level)
else:
for h in package_logger.handlers:
if not isinstance(h, logging.FileHandler):
log.debug('set level of %r to %r', h, level)
h.setLevel(level)
if log_sql is not None: # pragma: no cover
sql_logger = logging.getLogger(SQL)
log.debug('set level of %r to %r', sql_logger, level)
sql_logger.setLevel('INFO' if log_sql else 'WARNING')
log_version()
set_capture_warnings(capture_warnings)
return package_logger
def reset_logging():
root_logger = logging.getLogger()
for h in list(root_logger.handlers):
log.debug('%r.removeHandler(%r)', root_logger, h)
root_logger.removeHandler(h)
h.close()
def log_version(*, also_print=False, print_file=None):
import treedb
log.info('%s version: %s', __package__, treedb.__version__)
log.debug('%r', treedb)
if also_print or print_file is not None:
print(f'{__package__} version: {treedb.__version__}',
file=print_file)
def set_capture_warnings(value=True):
log.debug('set logging.captureWarnings(%r)', value)
logging.captureWarnings(value)
def configure_logging(*,
level='WARNING',
log_sql=False,
format=FORMAT,
capture_warnings=True,
reset=True): # pragma: no cover
cfg = {'version': 1,
'root': {'handlers': ['stderr_pretty'], 'level': level},
'loggers': {WARNINGS: {},
SQL: {'handlers': ['stderr_plain'],
'level': 'INFO' if log_sql else 'WARNING',
'propagate': False},
__package__: {}},
'handlers': {'stderr_plain': {'formatter': 'plain',
'class': 'logging.StreamHandler'},
'stderr_pretty': {'formatter': 'pretty',
'class': 'logging.StreamHandler'}},
'formatters': {'plain': {'format': '%(message)s'},
'pretty': {'format': format}}}
if reset:
reset_logging()
log.debug('logging.config.dictConfig(%r)', cfg)
logging.config.dictConfig(cfg)
log_version()
set_capture_warnings(capture_warnings)
return logging.getLogger(__package__)