annotate src/core/log_config.py @ 1051:854880a31717

memory (params), test: fixes updateParams bug
author souliane <souliane@mailoo.org>
date Tue, 03 Jun 2014 17:10:12 +0200
parents a836b6da2c5c
children ee450d7c88a7
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #!/usr/bin/python
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2 # -*- coding: utf-8 -*-
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3
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4 # SàT: a XMPP client
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5 # Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014 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
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23 from sat.core.constants import Const as C
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24 from sat.core import log
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25
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26
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27 class TwistedLogger(log.Logger):
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28 colors = True
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29 force_colors = False
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30
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31 def __init__(self, *args, **kwargs):
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32 super(TwistedLogger, self).__init__(*args, **kwargs)
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33 from twisted.python import log as twisted_log
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34 self.twisted_log = twisted_log
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35
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36 def out(self, message, level=None):
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37 """Actually log the message
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38
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39 @param message: formatted message
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40 """
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41 self.twisted_log.msg(message.encode('utf-8', 'ignore'), sat_logged=True, level=level)
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42
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43
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44 class ConfigureBasic(log.ConfigureBase):
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45
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46 def configureColors(self, colors, force_colors):
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47 if colors:
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48 import sys
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49 if force_colors or sys.stdout.isatty(): # FIXME: isatty should be tested on each handler, not globaly
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50 # we need colors
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51 log.Logger.post_treat = lambda self, level, message: self.ansiColors(level, message)
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52 elif force_colors:
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53 raise ValueError("force_colors can't be used if colors is False")
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54
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55 @staticmethod
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56 def getProfile():
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57 """Try to find profile value using introspection"""
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58 import inspect
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59 stack = inspect.stack()
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60 current_path = stack[0][1]
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61 for frame_data in stack[:-1]:
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62 if frame_data[1] != current_path:
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63 if log.backend == C.LOG_BACKEND_STANDARD and "/logging/__init__.py" in frame_data[1]:
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64 continue
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65 break
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66
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67 frame = frame_data[0]
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68 args = inspect.getargvalues(frame)
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69 try:
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70 profile = args.locals.get('profile') or args.locals['profile_key']
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71 except (TypeError, KeyError):
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72 try:
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73 try:
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74 profile = args.locals['self'].profile
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75 except AttributeError:
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76 try:
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77 profile = args.locals['self'].parent.profile
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78 except AttributeError:
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79 profile = args.locals['self'].host.profile # used in quick_frontend for single profile configuration
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80 except Exception:
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81 # we can't find profile, we return an empty value
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82 profile = ''
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83 return profile
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84
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85
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86 class ConfigureTwisted(ConfigureBasic):
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87 LOGGER_CLASS = TwistedLogger
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88
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89 def changeObserver(self, observer, can_colors=False):
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90 """Install a hook on observer to manage SàT specificities
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91
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92 @param observer: original observer to hook
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93 @param can_colors: True if observer can display ansi colors
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94 """
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95 def observer_hook(event):
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96 """redirect non SàT log to twisted_logger, and add colors when possible"""
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97 if 'sat_logged' in event: # we only want our own logs, other are managed by twistedObserver
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98 # we add colors if possible
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99 if (can_colors and self.LOGGER_CLASS.colors) or self.LOGGER_CLASS.force_colors:
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100 message = event.get('message', tuple())
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101 level = event.get('level', C.LOG_LVL_INFO)
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102 if message:
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103 event['message'] = (self.ansiColors(level, ''.join(message)),) # must be a tuple
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104 observer(event) # we can now call the original observer
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105
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106 return observer_hook
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107
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108 def changeFileLogObserver(self, observer):
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109 """Install SàT hook for FileLogObserver
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110
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111 if the output is a tty, we allow colors, else we don't
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112 @param observer: original observer to hook
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113 """
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114 log_obs = observer.__self__
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115 log_file = log_obs.write.__self__
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116 try:
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117 can_colors = log_file.isatty()
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118 except AttributeError:
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119 can_colors = False
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120 return self.changeObserver(observer, can_colors=can_colors)
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121
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122 def installObserverHook(self, observer):
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123 """Check observer type and install SàT hook when possible
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124
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125 @param observer: observer to hook
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126 @return: hooked observer or original one
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127 """
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128 if hasattr(observer, '__self__'):
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diff changeset
129 ori = observer
1021
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130 if isinstance(observer.__self__, self.twisted_log.FileLogObserver):
1007
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diff changeset
131 observer = self.changeFileLogObserver(observer)
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
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diff changeset
132 elif isinstance(observer.__self__, self.twisted_log.DefaultObserver):
1012
c8771279497e core(log): standard backend: colors are now checked on a per handler basis
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diff changeset
133 observer = self.changeObserver(observer, can_colors=True)
1007
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diff changeset
134 else:
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diff changeset
135 # we use print because log system is not fully initialized
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diff changeset
136 print("Unmanaged observer [%s]" % observer)
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diff changeset
137 return observer
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diff changeset
138 self.observers[ori] = observer
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diff changeset
139 return observer
991
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140
1007
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diff changeset
141 def preTreatment(self):
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142 """initialise needed attributes, and install observers hooks"""
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143 self.observers = {}
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
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144 from twisted.python import log as twisted_log
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145 self.twisted_log = twisted_log
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diff changeset
146 self.log_publisher = twisted_log.msg.__self__
1007
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147 def addObserverObserver(self_logpub, other):
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148 """Install hook so we know when a new observer is added"""
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diff changeset
149 other = self.installObserverHook(other)
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diff changeset
150 return self_logpub._originalAddObserver(other)
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diff changeset
151 def removeObserverObserver(self_logpub, ori):
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152 """removeObserver hook fix
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diff changeset
153
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diff changeset
154 As we wrap the original observer, the original removeObserver may want to remove the original object instead of the wrapper, this method fix this
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155 """
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156 if ori in self.observers:
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diff changeset
157 self_logpub._originalRemoveObserver(self.observers[ori])
1005
b4af31a8a4f2 core (logs): added formatting, name filter and outputs management:
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diff changeset
158 else:
1007
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diff changeset
159 try:
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160 self_logpub._originalRemoveObserver(ori)
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diff changeset
161 except ValueError:
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diff changeset
162 try:
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diff changeset
163 ori in self.cleared_observers
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diff changeset
164 except AttributeError:
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diff changeset
165 raise ValueError("Unknown observer")
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diff changeset
166
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diff changeset
167 # we replace addObserver/removeObserver by our own
1021
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diff changeset
168 twisted_log.LogPublisher._originalAddObserver = twisted_log.LogPublisher.addObserver
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
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diff changeset
169 twisted_log.LogPublisher._originalRemoveObserver = twisted_log.LogPublisher.removeObserver
1007
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diff changeset
170 import types # see https://stackoverflow.com/a/4267590 (thx Chris Morgan/aaronasterling)
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
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diff changeset
171 twisted_log.addObserver = types.MethodType(addObserverObserver, self.log_publisher, twisted_log.LogPublisher)
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
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diff changeset
172 twisted_log.removeObserver = types.MethodType(removeObserverObserver, self.log_publisher, twisted_log.LogPublisher)
1007
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diff changeset
173
a7d33c7a8277 core (log): refactoring + twisted backend:
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diff changeset
174 # we now change existing observers
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diff changeset
175 for idx, observer in enumerate(self.log_publisher.observers):
a7d33c7a8277 core (log): refactoring + twisted backend:
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diff changeset
176 self.log_publisher.observers[idx] = self.installObserverHook(observer)
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diff changeset
177
a7d33c7a8277 core (log): refactoring + twisted backend:
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diff changeset
178 def configureLevel(self, level):
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diff changeset
179 self.LOGGER_CLASS.level = level
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diff changeset
180 super(ConfigureTwisted, self).configureLevel(level)
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diff changeset
181
a7d33c7a8277 core (log): refactoring + twisted backend:
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diff changeset
182 def configureOutput(self, output):
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diff changeset
183 import sys
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diff changeset
184 if output is None:
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diff changeset
185 output = C.LOG_OPT_OUTPUT_SEP + C.LOG_OPT_OUTPUT_DEFAULT
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diff changeset
186 self.manageOutputs(output)
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
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diff changeset
187 addObserver = self.twisted_log.addObserver
1007
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diff changeset
188
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
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diff changeset
189 if C.LOG_OPT_OUTPUT_DEFAULT in log.handlers:
1007
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diff changeset
190 # default output is already managed, we just add output to stdout if we are in debug mode
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diff changeset
191 from twisted.internet import defer
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diff changeset
192 if defer.Deferred.debug:
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
193 addObserver(self.twisted_log.FileLogObserver(sys.stdout).emit)
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
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diff changeset
194 else:
a7d33c7a8277 core (log): refactoring + twisted backend:
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diff changeset
195 # \\default is not in the output, so we remove current observers
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diff changeset
196 self.cleared_observers = self.log_publisher.observers
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diff changeset
197 self.observers.clear()
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diff changeset
198 del self.log_publisher.observers[:]
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parents: 1006
diff changeset
199 # and we forbid twistd to add any observer
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
200 self.twisted_log.addObserver = lambda other: None
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
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diff changeset
201
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
202 if C.LOG_OPT_OUTPUT_FILE in log.handlers:
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
203 from twisted.python import logfile
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
204 for path in log.handlers[C.LOG_OPT_OUTPUT_FILE]:
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
205 log_file = sys.stdout if path == '-' else logfile.LogFile.fromFullPath(path)
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
206 addObserver(self.twisted_log.FileLogObserver(log_file).emit)
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
207
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
208 if C.LOG_OPT_OUTPUT_MEMORY in log.handlers:
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
209 raise NotImplementedError("Memory observer is not implemented in Twisted backend")
a7d33c7a8277 core (log): refactoring + twisted backend:
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diff changeset
210
a7d33c7a8277 core (log): refactoring + twisted backend:
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diff changeset
211 def configureColors(self, colors, force_colors):
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diff changeset
212 self.LOGGER_CLASS.colors = colors
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diff changeset
213 self.LOGGER_CLASS.force_colors = force_colors
a7d33c7a8277 core (log): refactoring + twisted backend:
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diff changeset
214 if force_colors and not colors:
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diff changeset
215 raise ValueError('colors must be True if force_colors is True')
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parents: 1006
diff changeset
216
a7d33c7a8277 core (log): refactoring + twisted backend:
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diff changeset
217 def postTreatment(self):
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diff changeset
218 """Install twistedObserver which manage non SàT logs"""
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parents: 1006
diff changeset
219 def twistedObserver(event):
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
220 """Observer which redirect log message not produced by SàT to SàT logging system"""
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
221 if not 'sat_logged' in event:
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
222 # this log was not produced by SàT
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
223 from twisted.python import log as twisted_log
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
224 text = twisted_log.textFromEventDict(event)
1007
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parents: 1006
diff changeset
225 if text is None:
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
226 return
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
227 twisted_logger = log.getLogger(C.LOG_TWISTED_LOGGER)
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
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parents: 1006
diff changeset
228 log_method = twisted_logger.error if event.get('isError', False) else twisted_logger.info
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
229 log_method(text.decode('utf-8'))
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
230
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
231 self.log_publisher._originalAddObserver(twistedObserver)
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
232
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
233
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
234 class ConfigureStandard(ConfigureBasic):
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
235
1010
73a0b7f94674 primitivus: use of new logging system:
Goffi <goffi@goffi.org>
parents: 1008
diff changeset
236 def __init__(self, level=None, fmt=None, output=None, logger=None, colors=False, force_colors=False):
73a0b7f94674 primitivus: use of new logging system:
Goffi <goffi@goffi.org>
parents: 1008
diff changeset
237 if fmt is None:
73a0b7f94674 primitivus: use of new logging system:
Goffi <goffi@goffi.org>
parents: 1008
diff changeset
238 fmt = C.LOG_OPT_FORMAT[1]
73a0b7f94674 primitivus: use of new logging system:
Goffi <goffi@goffi.org>
parents: 1008
diff changeset
239 if output is None:
73a0b7f94674 primitivus: use of new logging system:
Goffi <goffi@goffi.org>
parents: 1008
diff changeset
240 output = C.LOG_OPT_OUTPUT[1]
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
241 super(ConfigureStandard, self).__init__(level, fmt, output, logger, colors, force_colors)
991
05e02f8b7eb4 core: logging refactoring, first step:
Goffi <goffi@goffi.org>
parents:
diff changeset
242
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
243 def preTreatment(self):
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
244 """We use logging methods directly, instead of using Logger"""
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
245 import logging
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
246 log.getLogger = logging.getLogger
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
247 log.debug = logging.debug
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
248 log.info = logging.info
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
249 log.warning = logging.warning
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
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diff changeset
250 log.error = logging.error
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diff changeset
251 log.critical = logging.critical
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diff changeset
252
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diff changeset
253 def configureLevel(self, level):
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diff changeset
254 if level is None:
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diff changeset
255 level = C.LOG_LVL_DEBUG
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diff changeset
256 self.level = level
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diff changeset
257
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diff changeset
258 def configureFormat(self, fmt):
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diff changeset
259 import logging
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260
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diff changeset
261 class SatFormatter(logging.Formatter):
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262 u"""Formatter which manage SàT specificities"""
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diff changeset
263 _format = fmt
1013
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diff changeset
264 _with_profile = '%(profile)s' in fmt
1007
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265
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266 def __init__(self, can_colors=False):
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diff changeset
267 super(SatFormatter, self).__init__(self._format)
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diff changeset
268 self.can_colors = can_colors
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269
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diff changeset
270 def format(self, record):
1013
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diff changeset
271 if self._with_profile:
1021
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diff changeset
272 record.profile = ConfigureStandard.getProfile()
1007
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diff changeset
273 s = super(SatFormatter, self).format(record)
1012
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diff changeset
274 if self.with_colors and (self.can_colors or self.force_colors):
1021
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diff changeset
275 s = ConfigureStandard.ansiColors(record.levelname, s)
1007
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diff changeset
276 return s
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277
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diff changeset
278 self.formatterClass = SatFormatter
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279
1007
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diff changeset
280 def configureOutput(self, output):
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281 self.manageOutputs(output)
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282
1007
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diff changeset
283 def configureLogger(self, logger):
1021
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diff changeset
284 self.name_filter = log.FilterName(logger) if logger else None
1007
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diff changeset
285
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diff changeset
286 def configureColors(self, colors, force_colors):
1012
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diff changeset
287 self.formatterClass.with_colors = colors
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diff changeset
288 self.formatterClass.force_colors = force_colors
1007
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diff changeset
289 if not colors and force_colors:
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diff changeset
290 raise ValueError("force_colors can't be used if colors is False")
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diff changeset
291
1012
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diff changeset
292 def _addHandler(self, root_logger, hdlr, can_colors=False):
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diff changeset
293 hdlr.setFormatter(self.formatterClass(can_colors))
1007
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diff changeset
294 root_logger.addHandler(hdlr)
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diff changeset
295 root_logger.setLevel(self.level)
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diff changeset
296 if self.name_filter is not None:
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diff changeset
297 hdlr.addFilter(self.name_filter)
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diff changeset
298
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diff changeset
299 def postTreatment(self):
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diff changeset
300 import logging
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diff changeset
301 root_logger = logging.getLogger()
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diff changeset
302 if len(root_logger.handlers) == 0:
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
303 for handler, options in log.handlers.items():
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
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parents: 1006
diff changeset
304 if handler == C.LOG_OPT_OUTPUT_DEFAULT:
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diff changeset
305 hdlr = logging.StreamHandler()
1012
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parents: 1010
diff changeset
306 try:
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diff changeset
307 can_colors = hdlr.stream.isatty()
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Goffi <goffi@goffi.org>
parents: 1010
diff changeset
308 except AttributeError:
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Goffi <goffi@goffi.org>
parents: 1010
diff changeset
309 can_colors = False
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Goffi <goffi@goffi.org>
parents: 1010
diff changeset
310 self._addHandler(root_logger, hdlr, can_colors=can_colors)
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
311 elif handler == C.LOG_OPT_OUTPUT_MEMORY:
1010
73a0b7f94674 primitivus: use of new logging system:
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parents: 1008
diff changeset
312 from logging.handlers import BufferingHandler
73a0b7f94674 primitivus: use of new logging system:
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parents: 1008
diff changeset
313 class SatMemoryHandler(BufferingHandler):
73a0b7f94674 primitivus: use of new logging system:
Goffi <goffi@goffi.org>
parents: 1008
diff changeset
314 def emit(self, record):
73a0b7f94674 primitivus: use of new logging system:
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parents: 1008
diff changeset
315 super(SatMemoryHandler, self).emit(self.format(record))
73a0b7f94674 primitivus: use of new logging system:
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parents: 1008
diff changeset
316 hdlr = SatMemoryHandler(options)
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
317 log.handlers[handler] = hdlr # we keep a reference to the handler to read the buffer later
1012
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parents: 1010
diff changeset
318 self._addHandler(root_logger, hdlr, can_colors=False)
1007
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Goffi <goffi@goffi.org>
parents: 1006
diff changeset
319 elif handler == C.LOG_OPT_OUTPUT_FILE:
a7d33c7a8277 core (log): refactoring + twisted backend:
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parents: 1006
diff changeset
320 import os.path
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
321 for path in options:
a7d33c7a8277 core (log): refactoring + twisted backend:
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parents: 1006
diff changeset
322 hdlr = logging.FileHandler(os.path.expanduser(path))
1012
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Goffi <goffi@goffi.org>
parents: 1010
diff changeset
323 self._addHandler(root_logger, hdlr, can_colors=False)
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
324 else:
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
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diff changeset
325 raise ValueError("Unknown handler type")
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
326 else:
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
327 root_logger.warning(u"Handlers already set on root logger")
a7d33c7a8277 core (log): refactoring + twisted backend:
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parents: 1006
diff changeset
328
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
329 @staticmethod
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
330 def memoryGet(size=None):
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
331 """Return buffered logs
1006
325fd230c15d core (log): added advanced feature to basic backend (colors/formatting/level and logger filtering)
Goffi <goffi@goffi.org>
parents: 1005
diff changeset
332
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
333 @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
334 """
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
335 mem_handler = log.handlers[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
336 return (log_msg for log_msg in mem_handler.buffer[size if size is None else -size:])
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
337
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
338
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
339 log.configure_cls[C.LOG_BACKEND_BASIC] = ConfigureBasic
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
340 log.configure_cls[C.LOG_BACKEND_TWISTED] = ConfigureTwisted
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
341 log.configure_cls[C.LOG_BACKEND_STANDARD] = ConfigureStandard
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
342
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
343 def configure(backend, **options):
1006
325fd230c15d core (log): added advanced feature to basic backend (colors/formatting/level and logger filtering)
Goffi <goffi@goffi.org>
parents: 1005
diff changeset
344 """Configure logging behaviour
991
05e02f8b7eb4 core: logging refactoring, first step:
Goffi <goffi@goffi.org>
parents:
diff changeset
345 @param backend: can be:
05e02f8b7eb4 core: logging refactoring, first step:
Goffi <goffi@goffi.org>
parents:
diff changeset
346 C.LOG_BACKEND_STANDARD: use standard logging module
05e02f8b7eb4 core: logging refactoring, first step:
Goffi <goffi@goffi.org>
parents:
diff changeset
347 C.LOG_BACKEND_TWISTED: use twisted logging module (with standard logging observer)
05e02f8b7eb4 core: logging refactoring, first step:
Goffi <goffi@goffi.org>
parents:
diff changeset
348 C.LOG_BACKEND_BASIC: use a basic print based logging
1017
0ea97f483464 core (log): added "custom" backend
Goffi <goffi@goffi.org>
parents: 1016
diff changeset
349 C.LOG_BACKEND_CUSTOM: use a given Logger subclass
991
05e02f8b7eb4 core: logging refactoring, first step:
Goffi <goffi@goffi.org>
parents:
diff changeset
350 """
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
351 return log.configure(backend, **options)
991
05e02f8b7eb4 core: logging refactoring, first step:
Goffi <goffi@goffi.org>
parents:
diff changeset
352
994
652c01ca69b1 core (log): configuration and environment variables are now checked for log level and colors:
Goffi <goffi@goffi.org>
parents: 992
diff changeset
353 def _parseOptions(options):
652c01ca69b1 core (log): configuration and environment variables are now checked for log level and colors:
Goffi <goffi@goffi.org>
parents: 992
diff changeset
354 """Parse string options as given in conf or environment variable, and return expected python value
652c01ca69b1 core (log): configuration and environment variables are now checked for log level and colors:
Goffi <goffi@goffi.org>
parents: 992
diff changeset
355
652c01ca69b1 core (log): configuration and environment variables are now checked for log level and colors:
Goffi <goffi@goffi.org>
parents: 992
diff changeset
356 @param options (dict): options with (key: name, value: string value)
652c01ca69b1 core (log): configuration and environment variables are now checked for log level and colors:
Goffi <goffi@goffi.org>
parents: 992
diff changeset
357 """
1005
b4af31a8a4f2 core (logs): added formatting, name filter and outputs management:
Goffi <goffi@goffi.org>
parents: 994
diff changeset
358 COLORS = C.LOG_OPT_COLORS[0]
b4af31a8a4f2 core (logs): added formatting, name filter and outputs management:
Goffi <goffi@goffi.org>
parents: 994
diff changeset
359 LEVEL = C.LOG_OPT_LEVEL[0]
b4af31a8a4f2 core (logs): added formatting, name filter and outputs management:
Goffi <goffi@goffi.org>
parents: 994
diff changeset
360
b4af31a8a4f2 core (logs): added formatting, name filter and outputs management:
Goffi <goffi@goffi.org>
parents: 994
diff changeset
361 if COLORS in options:
b4af31a8a4f2 core (logs): added formatting, name filter and outputs management:
Goffi <goffi@goffi.org>
parents: 994
diff changeset
362 if options[COLORS].lower() in ('1', 'true'):
b4af31a8a4f2 core (logs): added formatting, name filter and outputs management:
Goffi <goffi@goffi.org>
parents: 994
diff changeset
363 options[COLORS] = True
b4af31a8a4f2 core (logs): added formatting, name filter and outputs management:
Goffi <goffi@goffi.org>
parents: 994
diff changeset
364 elif options[COLORS] == 'force':
b4af31a8a4f2 core (logs): added formatting, name filter and outputs management:
Goffi <goffi@goffi.org>
parents: 994
diff changeset
365 options[COLORS] = True
994
652c01ca69b1 core (log): configuration and environment variables are now checked for log level and colors:
Goffi <goffi@goffi.org>
parents: 992
diff changeset
366 options['force_colors'] = True
652c01ca69b1 core (log): configuration and environment variables are now checked for log level and colors:
Goffi <goffi@goffi.org>
parents: 992
diff changeset
367 else:
1005
b4af31a8a4f2 core (logs): added formatting, name filter and outputs management:
Goffi <goffi@goffi.org>
parents: 994
diff changeset
368 options[COLORS] = False
b4af31a8a4f2 core (logs): added formatting, name filter and outputs management:
Goffi <goffi@goffi.org>
parents: 994
diff changeset
369 if LEVEL in options:
b4af31a8a4f2 core (logs): added formatting, name filter and outputs management:
Goffi <goffi@goffi.org>
parents: 994
diff changeset
370 level = options[LEVEL].upper()
b4af31a8a4f2 core (logs): added formatting, name filter and outputs management:
Goffi <goffi@goffi.org>
parents: 994
diff changeset
371 if level not in C.LOG_LEVELS:
b4af31a8a4f2 core (logs): added formatting, name filter and outputs management:
Goffi <goffi@goffi.org>
parents: 994
diff changeset
372 level = C.LOG_LVL_INFO
b4af31a8a4f2 core (logs): added formatting, name filter and outputs management:
Goffi <goffi@goffi.org>
parents: 994
diff changeset
373 options[LEVEL] = level
994
652c01ca69b1 core (log): configuration and environment variables are now checked for log level and colors:
Goffi <goffi@goffi.org>
parents: 992
diff changeset
374
1010
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375 def satConfigure(backend=C.LOG_BACKEND_STANDARD, const=None):
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376 """Configure logging system for SàT, can be used by frontends
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377
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378 logs conf is read in SàT conf, then in environment variables. It must be done before Memory init
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379 @param backend: backend to use, it can be:
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380 - C.LOG_BACKEND_BASIC: print based backend
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381 - C.LOG_BACKEND_TWISTED: Twisted logging backend
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382 - C.LOG_BACKEND_STANDARD: standard logging backend
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383 @param const: Const class to use instead of sat.core.constants.Const (mainly used to change default values)
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384 """
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385 if const is not None:
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386 global C
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387 C = const
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388 log.C = const
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389 import ConfigParser
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390 import os
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391 log_conf = {}
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392 config = ConfigParser.SafeConfigParser()
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393 config.read(C.CONFIG_FILES)
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394 for opt_name, opt_default in C.LOG_OPTIONS():
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395 try:
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396 log_conf[opt_name] = os.environ[''.join((C.ENV_PREFIX, C.LOG_OPT_PREFIX.upper(), opt_name.upper()))]
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397 except KeyError:
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398 try:
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399 log_conf[opt_name] = config.get(C.LOG_OPT_SECTION, C.LOG_OPT_PREFIX + opt_name)
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400 except (ConfigParser.NoOptionError, ConfigParser.NoSectionError):
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401 log_conf[opt_name] = opt_default
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402
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403 _parseOptions(log_conf)
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404 configure(backend, **log_conf)