forked from github/pelican
0922efa371
calling the module-level functions on an unitialised logging object. This allows to - simplify log.py - use one logger object for each file
102 lines
2.6 KiB
Python
102 lines
2.6 KiB
Python
__all__ = [
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'init'
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]
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import os
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import sys
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import logging
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from logging import Formatter, getLogger, StreamHandler, DEBUG
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RESET_TERM = u'\033[0;m'
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def start_color(index):
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return u'\033[1;{0}m'.format(index)
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def term_color(color):
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code = COLOR_CODES[color]
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return lambda text: start_color(code) + unicode(text) + RESET_TERM
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COLOR_CODES = {
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'red': 31,
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'yellow': 33,
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'cyan': 36,
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'white': 37,
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'bgred': 41,
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'bggrey': 100,
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}
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ANSI = dict((col, term_color(col)) for col in COLOR_CODES)
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class ANSIFormatter(Formatter):
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"""
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Convert a `logging.LogReport' object into colored text, using ANSI escape sequences.
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"""
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## colors:
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def format(self, record):
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if record.levelname is 'INFO':
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return ANSI['cyan']('-> ') + unicode(record.msg)
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elif record.levelname is 'WARNING':
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return ANSI['yellow'](record.levelname) + ': ' + unicode(record.msg)
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elif record.levelname is 'ERROR':
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return ANSI['red'](record.levelname) + ': ' + unicode(record.msg)
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elif record.levelname is 'CRITICAL':
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return ANSI['bgred'](record.levelname) + ': ' + unicode(record.msg)
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elif record.levelname is 'DEBUG':
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return ANSI['bggrey'](record.levelname) + ': ' + unicode(record.msg)
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else:
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return ANSI['white'](record.levelname) + ': ' + unicode(record.msg)
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class TextFormatter(Formatter):
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"""
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Convert a `logging.LogReport' object into text.
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"""
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def format(self, record):
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if not record.levelname or record.levelname is 'INFO':
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return record.msg
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else:
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return record.levelname + ': ' + record.msg
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class DummyFormatter(object):
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"""
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A dummy class.
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Return an instance of the appropriate formatter (ANSIFormatter if
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sys.stdout.isatty() is True, else TextFormatter)
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"""
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def __new__(cls, *args, **kwargs):
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if os.isatty(sys.stdout.fileno())\
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and not sys.platform.startswith('win'):
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return ANSIFormatter(*args, **kwargs)
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else:
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return TextFormatter(*args, **kwargs)
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def init(level=None, logger=getLogger(), handler=StreamHandler()):
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logger = logging.getLogger()
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fmt = DummyFormatter()
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handler.setFormatter(fmt)
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logger.addHandler(handler)
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if level:
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logger.setLevel(level)
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if __name__ == '__main__':
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init(level=DEBUG)
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root_logger = logging.getLogger()
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root_logger.debug('debug')
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root_logger.info('info')
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root_logger.warning('warning')
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root_logger.error('error')
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root_logger.critical('critical')
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