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import sys
from logging import (Logger, StreamHandler, Formatter, LogRecord,
DEBUG, INFO, WARNING, ERROR, CRITICAL,
getLogger)
from typing import TextIO
LOG_LEVEL: int = INFO
# 'pyssg' es the name of the root logger
LOGGER_NAME: str = 'pyssg'
# only reason for this class is to get info formatting as normal text
# and everything else with more info and with colors
class PerLevelFormatter(Formatter):
# colors for the terminal in ansi
__YELLOW: str = '\x1b[33m'
__RED: str = '\x1b[31m'
__BOLD_RED: str = '\x1b[31;1m'
__RESET: str = '\x1b[0m'
__DATE_FMT: str = '%Y-%m-%d %H:%M:%S'
__COMMON_FMT: str = '[%(levelname)s] [%(module)s:%(funcName)s:%(lineno)d]: %(message)s'
__FORMATS: dict[int, str] = {
DEBUG: __COMMON_FMT,
INFO: '%(message)s',
WARNING: f'{__YELLOW}{__COMMON_FMT}{__RESET}',
ERROR: f'{__RED}{__COMMON_FMT}{__RESET}',
CRITICAL: f'{__BOLD_RED}{__COMMON_FMT}{__RESET}'
}
def format(self, record: LogRecord) -> str:
# this should never fail, as __FORMATS is defined above,
# so no issue of just converting to str
fmt: str = str(self.__FORMATS.get(record.levelno))
formatter: Formatter = Formatter(
fmt=fmt, datefmt=self.__DATE_FMT, style='%')
return formatter.format(record)
def setup_logger(name: str = LOGGER_NAME, level: int = LOG_LEVEL) -> None:
logger: Logger = getLogger(name)
handler: StreamHandler[TextIO] = StreamHandler(sys.stdout)
logger.setLevel(level)
handler.setLevel(level)
handler.setFormatter(PerLevelFormatter())
logger.addHandler(handler)
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