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# Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
import logging
import os
import sys
from .comm import get_rank
_default_logger = None
def __init_logger():
global _default_logger
if get_rank() == 0:
logger = logging.getLogger('default')
logger.setLevel(logging.DEBUG)
formatter = logging.Formatter("%(asctime)s %(name)s %(levelname)s: %(message)s")
if not any([isinstance(item, logging.StreamHandler) for item in logger.handlers]):
ch = logging.StreamHandler(stream=sys.stdout)
ch.setLevel(logging.DEBUG)
ch.setFormatter(formatter)
logger.addHandler(ch)
_default_logger = logger
__init_logger()
def setup_logger(name, save_dir, filename="log.txt"):
global _default_logger
# don't log results for the non-master process
if get_rank() == 0:
logger = logging.getLogger(name)
logger.setLevel(logging.DEBUG)
formatter = logging.Formatter("%(asctime)s %(name)s %(levelname)s: %(message)s")
if not any([isinstance(item, logging.StreamHandler) for item in logger.handlers]):
ch = logging.StreamHandler(stream=sys.stdout)
ch.setLevel(logging.DEBUG)
ch.setFormatter(formatter)
logger.addHandler(ch)
logger.handlers = [item for item in logger.handlers if not isinstance(item, logging.FileHandler)]
if save_dir:
log_path = os.path.join(save_dir, filename)
if not os.path.exists(os.path.dirname(log_path)):
os.makedirs(os.path.dirname(log_path))
fh = logging.FileHandler(log_path)
fh.setLevel(logging.DEBUG)
fh.setFormatter(formatter)
logger.addHandler(fh)
_default_logger = logger
def info(*args, **kwargs):
if get_rank() == 0:
_default_logger.info(*args, **kwargs)
def error(*args, **kwargs):
if get_rank() == 0:
_default_logger.error(*args, **kwargs)
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