borgmatic/borgmatic/logger.py

93 lines
2.5 KiB
Python

import logging
import os
import sys
import colorama
def to_bool(arg):
'''
Return a boolean value based on `arg`.
'''
if arg is None or isinstance(arg, bool):
return arg
if isinstance(arg, str):
arg = arg.lower()
if arg in ('yes', 'on', '1', 'true', 1):
return True
return False
def should_do_markup(no_color, configs):
'''
Given the value of the command-line no-color argument, and a dict of configuration filename to
corresponding parsed configuration, determine if we should enable colorama marking up.
'''
if no_color:
return False
if any(config.get('output', {}).get('color') is False for config in configs.values()):
return False
py_colors = os.environ.get('PY_COLORS', None)
if py_colors is not None:
return to_bool(py_colors)
return sys.stdout.isatty() and os.environ.get('TERM') != 'dumb'
LOG_LEVEL_TO_COLOR = {
logging.CRITICAL: colorama.Fore.RED,
logging.ERROR: colorama.Fore.RED,
logging.WARN: colorama.Fore.YELLOW,
logging.INFO: colorama.Fore.GREEN,
logging.DEBUG: colorama.Fore.CYAN,
}
class Console_color_formatter(logging.Formatter):
def format(self, record):
color = LOG_LEVEL_TO_COLOR.get(record.levelno)
return color_text(color, record.msg)
def color_text(color, message):
'''
Give colored text.
'''
if not color:
return message
return '{}{}{}'.format(color, message, colorama.Style.RESET_ALL)
def configure_logging(console_log_level, syslog_log_level=None):
'''
Configure logging to go to both the console and syslog. Use the given log levels, respectively.
'''
if syslog_log_level is None:
syslog_log_level = console_log_level
console_handler = logging.StreamHandler()
console_handler.setFormatter(Console_color_formatter())
console_handler.setLevel(console_log_level)
syslog_path = None
if os.path.exists('/dev/log'):
syslog_path = '/dev/log'
elif os.path.exists('/var/run/syslog'):
syslog_path = '/var/run/syslog'
if syslog_path:
syslog_handler = logging.handlers.SysLogHandler(address=syslog_path)
syslog_handler.setFormatter(logging.Formatter('borgmatic: %(levelname)s %(message)s'))
syslog_handler.setLevel(syslog_log_level)
handlers = (console_handler, syslog_handler)
else:
handlers = (console_handler,)
logging.basicConfig(level=min(console_log_level, syslog_log_level), handlers=handlers)