annotate libervia/backend/core/log.py @ 4272:89a0999884ac

cli (list/set): add "--comments" argument.
author Goffi <goffi@goffi.org>
date Thu, 20 Jun 2024 14:46:55 +0200
parents 0d7bb4df2343
children
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1 #!/usr/bin/env python3
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2
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3
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4 # Libervia: an XMPP client
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5 # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)
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6
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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11
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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16
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20 """High level logging functions"""
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21 # XXX: this module use standard logging module when possible, but as SàT can work in different cases where logging is not the best choice (twisted, pyjamas, etc), it is necessary to have a dedicated module. Additional feature like environment variables and colors are also managed.
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22 # TODO: change formatting from "%s" style to "{}" when moved to Python 3
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23
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24 from typing import TYPE_CHECKING, Any, Optional, Dict
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25
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26 if TYPE_CHECKING:
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27 from logging import _ExcInfoType
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28 else:
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29 _ExcInfoType = Any
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30
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31 from libervia.backend.core.constants import Const as C
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32 from libervia.backend.tools.common.ansi import ANSI as A
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33 from libervia.backend.core import exceptions
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34 import traceback
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36 backend = None
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37 _loggers: Dict[str, "Logger"] = {}
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38 handlers = {}
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39 COLOR_START = "%(color_start)s"
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40 COLOR_END = "%(color_end)s"
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42
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43 class Filtered(Exception):
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44 pass
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47 class Logger:
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48 """High level logging class"""
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49
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50 fmt = None # format option as given by user (e.g. SAT_LOG_LOGGER)
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51 filter_name = None # filter to call
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52 post_treat = None
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53
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54 def __init__(self, name):
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55 if isinstance(name, Logger):
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56 self.copy(name)
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57 else:
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58 self._name = name
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59
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60 def copy(self, other):
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61 """Copy values from other Logger"""
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62 self.fmt = other.fmt
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63 self.Filter_name = other.fmt
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64 self.post_treat = other.post_treat
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65 self._name = other._name
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66
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67 def add_traceback(self, message):
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68 tb = traceback.format_exc()
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69 return message + "\n==== traceback ====\n" + tb
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70
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71 def out(
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72 self,
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73 message: object,
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74 level: Optional[str] = None,
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75 exc_info: _ExcInfoType = False,
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76 **kwargs,
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77 ) -> None:
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78 """Actually log the message
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79
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80 @param message: formatted message
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81 """
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82 if exc_info:
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83 message = self.add_traceback(message)
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84 print(message)
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85
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86 def log(
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87 self, level: str, message: object, exc_info: _ExcInfoType = False, **kwargs
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88 ) -> None:
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89 """Print message
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90
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91 @param level: one of C.LOG_LEVELS
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92 @param message: message to format and print
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93 """
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94 if exc_info:
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95 message = self.add_traceback(message)
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96 try:
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97 formatted = self.format(level, message)
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98 if self.post_treat is None:
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99 self.out(formatted, level, **kwargs)
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100 else:
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101 self.out(self.post_treat(level, formatted), level, **kwargs)
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102 except Filtered:
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103 pass
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104
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105 def format(self, level: str, message: object) -> object:
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106 """Format message according to Logger.fmt
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107
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108 @param level: one of C.LOG_LEVELS
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109 @param message: message to format
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110 @return: formatted message
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111
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112 @raise: Filtered when the message must not be logged
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113 """
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114 if self.fmt is None and self.filter_name is None:
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115 return message
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116 record = {
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117 "name": self._name,
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118 "message": message,
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119 "levelname": level,
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120 }
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121 try:
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122 if not self.filter_name.dict_filter(record):
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123 raise Filtered
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124 except (
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125 AttributeError,
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126 TypeError,
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127 ): # XXX: TypeError is here because of a pyjamas bug which need to be fixed (TypeError is raised instead of AttributeError)
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128 if self.filter_name is not None:
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129 raise ValueError("Bad filter: filters must have a .filter method")
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130 try:
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131 return self.fmt % record
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132 except TypeError:
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133 return message
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134 except KeyError as e:
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135 if e.args[0] == "profile":
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136 # XXX: %(profile)s use some magic with introspection, for debugging purpose only *DO NOT* use in production
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137 record["profile"] = configure_cls[backend].get_profile()
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138 return self.fmt % record
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139 else:
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140 raise e
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141
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142 def debug(self, msg: object, **kwargs) -> None:
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143 self.log(C.LOG_LVL_DEBUG, msg, **kwargs)
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144
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145 def info(self, msg: object, **kwargs) -> None:
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146 self.log(C.LOG_LVL_INFO, msg, **kwargs)
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147
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148 def warning(self, msg: object, **kwargs) -> None:
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149 self.log(C.LOG_LVL_WARNING, msg, **kwargs)
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150
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151 def error(self, msg: object, **kwargs) -> None:
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152 self.log(C.LOG_LVL_ERROR, msg, **kwargs)
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153
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154 def critical(self, msg: object, **kwargs) -> None:
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155 self.log(C.LOG_LVL_CRITICAL, msg, **kwargs)
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156
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157 def exception(self, msg: object, exc_info=True, **kwargs) -> None:
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158 self.log(C.LOG_LVL_ERROR, msg, exc_info=exc_info, **kwargs)
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159
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160
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161 class FilterName(object):
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162 """Filter on logger name according to a regex"""
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163
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164 def __init__(self, name_re):
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165 """Initialise name filter
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166
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167 @param name_re: regular expression used to filter names (using search and not match)
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168 """
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169 assert name_re
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170 import re
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171
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172 self.name_re = re.compile(name_re)
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173
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174 def filter(self, record):
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175 if self.name_re.search(record.name) is not None:
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176 return 1
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177 return 0
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178
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179 def dict_filter(self, dict_record):
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180 """Filter using a dictionary record
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181
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182 @param dict_record: dictionary with at list a key "name" with logger name
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183 @return: True if message should be logged
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184 """
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185
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186 class LogRecord(object):
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187 pass
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188
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189 log_record = LogRecord()
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190 log_record.name = dict_record["name"]
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191 return self.filter(log_record) == 1
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192
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193
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194 class ConfigureBase:
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195 LOGGER_CLASS = Logger
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196 # True if color location is specified in fmt (with COLOR_START)
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197 _color_location = False
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198
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199 def __init__(
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200 self,
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201 level=None,
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202 fmt=None,
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203 output=None,
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204 logger=None,
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205 colors=False,
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206 levels_taints_dict=None,
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207 force_colors=False,
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208 backend_data=None,
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209 ):
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210 """Configure a backend
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211
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212 @param level: one of C.LOG_LEVELS
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213 @param fmt: format string, pretty much as in std logging.
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214 Accept the following keywords (maybe more depending on backend):
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215 - "message"
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216 - "levelname"
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217 - "name" (logger name)
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218 @param logger: if set, use it as a regular expression to filter on logger name.
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219 Use search to match expression, so ^ or $ can be necessary.
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220 @param colors: if True use ANSI colors to show log levels
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221 @param force_colors: if True ANSI colors are used even if stdout is not a tty
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222 """
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223 self.backend_data = backend_data
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224 self.pre_treatment()
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225 self.configure_level(level)
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226 self.configure_format(fmt)
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227 self.configure_output(output)
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228 self.configure_logger(logger)
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229 self.configure_colors(colors, force_colors, levels_taints_dict)
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230 self.post_treatment()
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231 self.update_current_logger()
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232
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233 def update_current_logger(self):
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234 """update existing logger to the class needed for this backend"""
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235 if self.LOGGER_CLASS is None:
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236 return
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237 for name, logger in list(_loggers.items()):
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238 _loggers[name] = self.LOGGER_CLASS(logger)
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239
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240 def pre_treatment(self):
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241 pass
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242
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243 def configure_level(self, level):
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244 if level is not None:
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245 # we deactivate methods below level
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246 level_idx = C.LOG_LEVELS.index(level)
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247
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248 def dev_null(self, msg):
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249 pass
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250
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251 for _level in C.LOG_LEVELS[:level_idx]:
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252 setattr(Logger, _level.lower(), dev_null)
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253
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254 def configure_format(self, fmt):
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255 if fmt is not None:
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256 if fmt != "%(message)s": # %(message)s is the same as None
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257 Logger.fmt = fmt
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258 if COLOR_START in fmt:
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259 ConfigureBase._color_location = True
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260 if fmt.find(COLOR_END, fmt.rfind(COLOR_START)) < 0:
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261 # color_start not followed by an end, we add it
1940
3fdacba9da68 core (logs): log color location can now be specified with %(color_start)s and %(color_end)s
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
262 Logger.fmt += COLOR_END
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
263
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3997
diff changeset
264 def configure_output(self, output):
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
265 if output is not None:
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
266 if output != C.LOG_OPT_OUTPUT_SEP + C.LOG_OPT_OUTPUT_DEFAULT:
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
267 # TODO: manage other outputs
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
268 raise NotImplementedError("Basic backend only manage default output yet")
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
269
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3997
diff changeset
270 def configure_logger(self, logger):
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
271 if logger:
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
272 Logger.filter_name = FilterName(logger)
1005
b4af31a8a4f2 core (logs): added formatting, name filter and outputs management:
Goffi <goffi@goffi.org>
parents: 994
diff changeset
273
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3997
diff changeset
274 def configure_colors(self, colors, force_colors, levels_taints_dict):
1942
7f053e1f0b67 core (logs): taints:
Goffi <goffi@goffi.org>
parents: 1940
diff changeset
275 if colors:
7f053e1f0b67 core (logs): taints:
Goffi <goffi@goffi.org>
parents: 1940
diff changeset
276 # if color are used, we need to handle levels_taints_dict
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2836
diff changeset
277 for level in list(levels_taints_dict.keys()):
1942
7f053e1f0b67 core (logs): taints:
Goffi <goffi@goffi.org>
parents: 1940
diff changeset
278 # we wants levels in uppercase to correspond to contstants
7f053e1f0b67 core (logs): taints:
Goffi <goffi@goffi.org>
parents: 1940
diff changeset
279 levels_taints_dict[level.upper()] = levels_taints_dict[level]
7f053e1f0b67 core (logs): taints:
Goffi <goffi@goffi.org>
parents: 1940
diff changeset
280 taints = self.__class__.taints = {}
7f053e1f0b67 core (logs): taints:
Goffi <goffi@goffi.org>
parents: 1940
diff changeset
281 for level in C.LOG_LEVELS:
7f053e1f0b67 core (logs): taints:
Goffi <goffi@goffi.org>
parents: 1940
diff changeset
282 # we want use values and use constant value as default
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Goffi <goffi@goffi.org>
parents: 4071
diff changeset
283 taint_list = levels_taints_dict.get(
0d7bb4df2343 Reformatted code base using black.
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
284 level, C.LOG_OPT_TAINTS_DICT[1][level]
0d7bb4df2343 Reformatted code base using black.
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
285 )
1942
7f053e1f0b67 core (logs): taints:
Goffi <goffi@goffi.org>
parents: 1940
diff changeset
286 ansi_list = []
7f053e1f0b67 core (logs): taints:
Goffi <goffi@goffi.org>
parents: 1940
diff changeset
287 for elt in taint_list:
7f053e1f0b67 core (logs): taints:
Goffi <goffi@goffi.org>
parents: 1940
diff changeset
288 elt = elt.upper()
7f053e1f0b67 core (logs): taints:
Goffi <goffi@goffi.org>
parents: 1940
diff changeset
289 try:
4270
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Goffi <goffi@goffi.org>
parents: 4071
diff changeset
290 ansi = getattr(A, "FG_{}".format(elt))
1942
7f053e1f0b67 core (logs): taints:
Goffi <goffi@goffi.org>
parents: 1940
diff changeset
291 except AttributeError:
7f053e1f0b67 core (logs): taints:
Goffi <goffi@goffi.org>
parents: 1940
diff changeset
292 try:
2154
7cbffd754b4a core (constants), tools (common/ansi): moved ANSI escape codes to a dedicated class, with helper methods
Goffi <goffi@goffi.org>
parents: 1942
diff changeset
293 ansi = getattr(A, elt)
1942
7f053e1f0b67 core (logs): taints:
Goffi <goffi@goffi.org>
parents: 1940
diff changeset
294 except AttributeError:
7f053e1f0b67 core (logs): taints:
Goffi <goffi@goffi.org>
parents: 1940
diff changeset
295 # we use raw string if element is unknown
7f053e1f0b67 core (logs): taints:
Goffi <goffi@goffi.org>
parents: 1940
diff changeset
296 ansi = elt
7f053e1f0b67 core (logs): taints:
Goffi <goffi@goffi.org>
parents: 1940
diff changeset
297 ansi_list.append(ansi)
4270
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Goffi <goffi@goffi.org>
parents: 4071
diff changeset
298 taints[level] = "".join(ansi_list)
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
299
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3997
diff changeset
300 def post_treatment(self):
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
301 pass
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
302
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3997
diff changeset
303 def manage_outputs(self, outputs_raw):
4270
0d7bb4df2343 Reformatted code base using black.
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
304 """Parse output option in a backend agnostic way, and fill handlers consequently
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
305
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
306 @param outputs_raw: output option as enterred in environment variable or in configuration
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
307 """
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
308 if not outputs_raw:
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
309 return
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
310 outputs = outputs_raw.split(C.LOG_OPT_OUTPUT_SEP)
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
311 global handlers
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
312 if len(outputs) == 1:
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
313 handlers[C.LOG_OPT_OUTPUT_FILE] = [outputs.pop()]
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
314
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
315 for output in outputs:
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
316 if not output:
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
317 continue
4270
0d7bb4df2343 Reformatted code base using black.
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
318 if output[-1] == ")":
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
319 # we have options
4270
0d7bb4df2343 Reformatted code base using black.
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
320 opt_begin = output.rfind("(")
0d7bb4df2343 Reformatted code base using black.
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
321 options = output[opt_begin + 1 : -1]
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
322 output = output[:opt_begin]
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
323 else:
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
324 options = None
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
325
4270
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Goffi <goffi@goffi.org>
parents: 4071
diff changeset
326 if output not in (
0d7bb4df2343 Reformatted code base using black.
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
327 C.LOG_OPT_OUTPUT_DEFAULT,
0d7bb4df2343 Reformatted code base using black.
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
328 C.LOG_OPT_OUTPUT_FILE,
0d7bb4df2343 Reformatted code base using black.
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
329 C.LOG_OPT_OUTPUT_MEMORY,
0d7bb4df2343 Reformatted code base using black.
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
330 ):
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2836
diff changeset
331 raise ValueError("Invalid output [%s]" % output)
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
332
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
333 if output == C.LOG_OPT_OUTPUT_DEFAULT:
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
334 # no option for defaut handler
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
335 handlers[output] = None
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
336 elif output == C.LOG_OPT_OUTPUT_FILE:
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
337 if not options:
4270
0d7bb4df2343 Reformatted code base using black.
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
338 ValueError(
0d7bb4df2343 Reformatted code base using black.
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
339 "{handler} output need a path as option".format(handle=output)
0d7bb4df2343 Reformatted code base using black.
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
340 )
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
341 handlers.setdefault(output, []).append(options)
4270
0d7bb4df2343 Reformatted code base using black.
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
342 options = None # option are parsed, we can empty them
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
343 elif output == C.LOG_OPT_OUTPUT_MEMORY:
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
344 # we have memory handler, option can be the len limit or None
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
345 try:
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
346 limit = int(options)
4270
0d7bb4df2343 Reformatted code base using black.
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
347 options = None # option are parsed, we can empty them
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
348 except (TypeError, ValueError):
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
349 limit = C.LOG_OPT_OUTPUT_MEMORY_LIMIT
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
350 handlers[output] = limit
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
351
4270
0d7bb4df2343 Reformatted code base using black.
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
352 if options: # we should not have unparsed options
0d7bb4df2343 Reformatted code base using black.
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
353 raise ValueError(
0d7bb4df2343 Reformatted code base using black.
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
354 "options [{options}] are not supported for {handler} output".format(
0d7bb4df2343 Reformatted code base using black.
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
355 options=options, handler=output
0d7bb4df2343 Reformatted code base using black.
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
356 )
0d7bb4df2343 Reformatted code base using black.
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
357 )
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
358
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
359 @staticmethod
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3997
diff changeset
360 def memory_get(size=None):
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
361 """Return buffered logs
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
362
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
363 @param size: number of logs to return
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
364 """
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
365 raise NotImplementedError
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
366
1940
3fdacba9da68 core (logs): log color location can now be specified with %(color_start)s and %(color_end)s
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
367 @classmethod
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3997
diff changeset
368 def ansi_colors(cls, level, message):
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
369 """Colorise message depending on level for terminals
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
370
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
371 @param level: one of C.LOG_LEVELS
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
372 @param message: formatted message to log
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
373 @return: message with ANSI escape codes for coloration
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
374 """
1942
7f053e1f0b67 core (logs): taints:
Goffi <goffi@goffi.org>
parents: 1940
diff changeset
375
7f053e1f0b67 core (logs): taints:
Goffi <goffi@goffi.org>
parents: 1940
diff changeset
376 try:
7f053e1f0b67 core (logs): taints:
Goffi <goffi@goffi.org>
parents: 1940
diff changeset
377 start = cls.taints[level]
7f053e1f0b67 core (logs): taints:
Goffi <goffi@goffi.org>
parents: 1940
diff changeset
378 except KeyError:
4270
0d7bb4df2343 Reformatted code base using black.
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
379 start = ""
1942
7f053e1f0b67 core (logs): taints:
Goffi <goffi@goffi.org>
parents: 1940
diff changeset
380
1940
3fdacba9da68 core (logs): log color location can now be specified with %(color_start)s and %(color_end)s
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
381 if cls._color_location:
4270
0d7bb4df2343 Reformatted code base using black.
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
382 return message % {"color_start": start, "color_end": A.RESET}
1940
3fdacba9da68 core (logs): log color location can now be specified with %(color_start)s and %(color_end)s
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
383 else:
4270
0d7bb4df2343 Reformatted code base using black.
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
384 return "%s%s%s" % (start, message, A.RESET)
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
385
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
386 @staticmethod
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3997
diff changeset
387 def get_profile():
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
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388 """Try to find profile value using introspection"""
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389 raise NotImplementedError
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390
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391
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392 class ConfigureCustom(ConfigureBase):
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393 LOGGER_CLASS = None
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394
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395 def __init__(self, logger_class, *args, **kwargs):
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396 ConfigureCustom.LOGGER_CLASS = logger_class
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397
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398
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399 configure_cls = {
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400 None: ConfigureBase,
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401 C.LOG_BACKEND_CUSTOM: ConfigureCustom,
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402 } # XXX: (key: backend, value: Configure subclass) must be filled when new backend are added
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403
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404
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405 def configure(backend_, **options):
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406 """Configure logging behaviour
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407 @param backend: can be:
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408 C.LOG_BACKEND_BASIC: use a basic print based logging
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409 C.LOG_BACKEND_CUSTOM: use a given Logger subclass
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410 """
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411 global backend
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412 if backend is not None:
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413 raise exceptions.InternalError("Logging can only be configured once")
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414 backend = backend_
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415
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416 try:
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417 configure_class = configure_cls[backend]
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418 except KeyError:
1940
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419 raise ValueError("unknown backend [{}]".format(backend))
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420 if backend == C.LOG_BACKEND_CUSTOM:
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421 logger_class = options.pop("logger_class")
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422 configure_class(logger_class, **options)
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423 else:
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424 configure_class(**options)
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425
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426
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427 def memory_get(size=None):
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428 if not C.LOG_OPT_OUTPUT_MEMORY in handlers:
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429 raise ValueError("memory output is not used")
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430 return configure_cls[backend].memory_get(size)
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431
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432
3997
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433 def getLogger(name=C.LOG_BASE_LOGGER) -> Logger:
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434 try:
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
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435 logger_class = configure_cls[backend].LOGGER_CLASS
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
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436 except KeyError:
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437 raise ValueError(
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438 "This method should not be called with backend [{}]".format(backend)
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439 )
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440 return _loggers.setdefault(name, logger_class(name))
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441
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442
991
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443 _root_logger = getLogger()
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444
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445
2836
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446 def debug(msg, **kwargs):
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447 _root_logger.debug(msg, **kwargs)
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448
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449
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450 def info(msg, **kwargs):
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451 _root_logger.info(msg, **kwargs)
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452
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453
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454 def warning(msg, **kwargs):
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455 _root_logger.warning(msg, **kwargs)
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456
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457
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458 def error(msg, **kwargs):
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459 _root_logger.error(msg, **kwargs)
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460
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461
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462 def critical(msg, **kwargs):
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463 _root_logger.critical(msg, **kwargs)