def setup(log_file, log_level=None):
"""
Configure the logging output.
May be called multiple times.
"""
log_level = log_level or DEFAULT_LOG_LEVEL
logging.setLoggerClass(_Logger)
logging.getLogger(__package__).setLevel(log_level)
r = logging.root
if log_level >= logging.INFO or os.environ.get('FLASK_DEBUG'):
# avoid spamming the log with debug messages from libraries
r.setLevel(log_level)
# Otherwise, name gets destroyed on Windows
if log_file != LOG_TO_STDERR and log_file != LOG_TO_STDOUT:
log_file = _absolute_log_file(log_file, DEFAULT_LOG_FILE)
previous_handler = r.handlers[0] if r.handlers else None
if previous_handler:
# if the log_file has not changed, don't create a new handler
if getattr(previous_handler, 'baseFilename', None) == log_file:
return "" if log_file == DEFAULT_LOG_FILE else log_file
logging.debug("logging to %s level %s", log_file, r.level)
if log_file == LOG_TO_STDERR or log_file == LOG_TO_STDOUT:
if log_file == LOG_TO_STDOUT:
file_handler = StreamHandler(sys.stdout)
file_handler.baseFilename = log_file
else:
file_handler = StreamHandler(sys.stderr)
file_handler.baseFilename = log_file
else:
try:
file_handler = RotatingFileHandler(log_file,
maxBytes=100000,
backupCount=2,
encoding='utf-8')
except IOError:
if log_file == DEFAULT_LOG_FILE:
raise
file_handler = RotatingFileHandler(DEFAULT_LOG_FILE,
maxBytes=100000,
backupCount=2,
encoding='utf-8')
log_file = ""
file_handler.setFormatter(FORMATTER)
for h in r.handlers:
r.removeHandler(h)
h.close()
r.addHandler(file_handler)
logging.captureWarnings(True)
return "" if log_file == DEFAULT_LOG_FILE else log_file
def setup(log_file, log_level=None):
'''
Configure the logging output.
May be called multiple times.
'''
# if debugging, start logging to stderr immediately
if os.environ.get('FLASK_DEBUG', None):
log_file = LOG_TO_STDERR
log_level = logging.DEBUG
log_file = _absolute_log_file(log_file, DEFAULT_LOG_FILE)
log_level = log_level or DEFAULT_LOG_LEVEL
logging.getLogger(__package__).setLevel(log_level)
r = logging.root
if log_level >= logging.INFO or os.environ.get('FLASK_DEBUG'):
# avoid spamming the log with debug messages from libraries
r.setLevel(log_level)
previous_handler = r.handlers[0] if r.handlers else None
if previous_handler:
# if the log_file has not changed, don't create a new handler
if getattr(previous_handler, 'baseFilename', None) == log_file:
return
logging.debug("logging to %s level %s", log_file, r.level)
if log_file == LOG_TO_STDERR:
file_handler = StreamHandler()
file_handler.baseFilename = LOG_TO_STDERR
else:
try:
file_handler = RotatingFileHandler(log_file,
maxBytes=50000,
backupCount=2)
except IOError:
if log_file == DEFAULT_LOG_FILE:
raise
file_handler = RotatingFileHandler(DEFAULT_LOG_FILE,
maxBytes=50000,
backupCount=2)
file_handler.setFormatter(FORMATTER)
for h in r.handlers:
r.removeHandler(h)
h.close()
r.addHandler(file_handler)
