/usr/lib/python3/dist-packages/gbp/log.py is in git-buildpackage 0.9.8.
This file is owned by root:root, with mode 0o644.
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#
# (C) 2010 Guido Günther <agx@sigxcpu.org>
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, please see
# <http://www.gnu.org/licenses/>
#
"""Simple colored logging classes"""
import os
import sys
import logging
from logging import (DEBUG, INFO, WARNING, ERROR, CRITICAL, getLogger)
import gbp.tristate
COLORS = dict([('none', 0)] + list(zip(['black', 'red', 'green', 'yellow', 'blue',
'magenta', 'cyan', 'white'], range(30, 38))))
DEFAULT_COLOR_SCHEME = {DEBUG: COLORS['green'],
INFO: COLORS['green'],
WARNING: COLORS['red'],
ERROR: COLORS['red'],
CRITICAL: COLORS['red']}
class GbpFilter(object):
"""Filter for enabling selective output"""
def __init__(self, levels):
self._levels = levels
def filter(self, record):
"""Do we show the record"""
if record.levelno in self._levels:
return True
return False
class GbpStreamHandler(logging.StreamHandler):
"""Special stream handler for enabling colored output"""
COLOR_SEQ = "\033[%dm"
OFF_SEQ = "\033[0m"
def __init__(self, stream=None, color='auto'):
super(GbpStreamHandler, self).__init__(stream)
self._color = gbp.tristate.Tristate(color)
self._color_scheme = DEFAULT_COLOR_SCHEME.copy()
msg_fmt = "%(color)s%(name)s:%(levelname)s:%(coloroff)s %(message)s"
self.setFormatter(logging.Formatter(fmt=msg_fmt))
def set_color(self, color):
"""Set/unset colorized output"""
self._color = gbp.tristate.Tristate(color)
def set_color_scheme(self, color_scheme={}):
"""Set logging colors"""
self._color_scheme = DEFAULT_COLOR_SCHEME.copy()
self._color_scheme.update(color_scheme)
def set_format(self, fmt):
"""Set logging format"""
self.setFormatter(logging.Formatter(fmt=fmt))
def _use_color(self):
"""Check if to print in color or not"""
if self._color.is_on():
return True
elif self._color.is_auto() and hasattr(self.stream, 'isatty'):
in_emacs = (os.getenv("EMACS") and
os.getenv("INSIDE_EMACS", "").endswith(",comint"))
return self.stream.isatty() and not in_emacs
return False
def format(self, record):
"""Colorizing formatter"""
record.color = record.coloroff = ""
if self._use_color():
record.color = self.COLOR_SEQ % self._color_scheme[record.levelno]
record.coloroff = self.OFF_SEQ
record.levelname = record.levelname.lower()
return super(GbpStreamHandler, self).format(record)
class GbpLogger(logging.Logger):
"""Logger class for git-buildpackage"""
def __init__(self, name, color='auto', *args, **kwargs):
super(GbpLogger, self).__init__(name, *args, **kwargs)
self._default_handlers = [GbpStreamHandler(sys.stdout, color),
GbpStreamHandler(sys.stderr, color)]
self._default_handlers[0].addFilter(GbpFilter([DEBUG, INFO]))
self._default_handlers[1].addFilter(GbpFilter([WARNING, ERROR,
CRITICAL]))
for hdlr in self._default_handlers:
self.addHandler(hdlr)
def set_color(self, color):
"""Set/unset colorized output of the default handlers"""
for hdlr in self._default_handlers:
hdlr.set_color(color)
def set_color_scheme(self, color_scheme={}):
"""Set the color scheme of the default handlers"""
for hdlr in self._default_handlers:
hdlr.set_color_scheme(color_scheme)
def set_format(self, fmt):
"""Set the format of the default handlers"""
for hdlr in self._default_handlers:
hdlr.set_format(fmt)
def err(msg):
"""Logs a message with level ERROR on the GBP logger"""
LOGGER.error(msg)
def warn(msg):
"""Logs a message with level WARNING on the GBP logger"""
LOGGER.warning(msg)
def info(msg):
"""Logs a message with level INFO on the GBP logger"""
LOGGER.info(msg)
def debug(msg):
"""Logs a message with level DEBUG on the GBP logger"""
LOGGER.debug(msg)
def _parse_color_scheme(color_scheme=""):
"""Set logging colors"""
scheme = {}
colors = color_scheme.split(':')
levels = (DEBUG, INFO, WARNING, ERROR)
if color_scheme and len(colors) != len(levels):
raise ValueError("Number color fields in color scheme not %d'"
% len(levels))
for field, color in enumerate(colors):
level = levels[field]
try:
scheme[level] = int(color)
except ValueError:
try:
scheme[level] = COLORS[color.lower()]
except KeyError:
pass
return scheme
def setup(color, verbose, color_scheme=""):
"""Basic logger setup"""
LOGGER.set_color(color)
LOGGER.set_color_scheme(_parse_color_scheme(color_scheme))
if verbose:
LOGGER.setLevel(DEBUG)
else:
LOGGER.setLevel(INFO)
# Initialize the module
logging.setLoggerClass(GbpLogger)
LOGGER = getLogger("gbp")
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