annotate src/core/log_config.py @ 1122:9ae01ccf89c1

core: sat bakcend is now a twisted plugin (no more .tac file)
author Goffi <goffi@goffi.org>
date Sun, 24 Aug 2014 18:44:17 +0200
parents 64ff259d3cbb
children 08f50fdac21b
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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diff changeset
125 @param observer: observer to hook
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Goffi <goffi@goffi.org>
parents: 1006
diff changeset
126 @return: hooked observer or original one
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
127 """
a7d33c7a8277 core (log): refactoring + twisted backend:
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parents: 1006
diff changeset
128 if hasattr(observer, '__self__'):
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
129 ori = 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
130 if isinstance(observer.__self__, self.twisted_log.FileLogObserver):
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
131 observer = self.changeFileLogObserver(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
132 elif isinstance(observer.__self__, self.twisted_log.DefaultObserver):
1012
c8771279497e core(log): standard backend: colors are now checked on a per handler basis
Goffi <goffi@goffi.org>
parents: 1010
diff changeset
133 observer = self.changeObserver(observer, can_colors=True)
1007
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parents: 1006
diff changeset
134 else:
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
135 # we use print because log system is not fully initialized
a7d33c7a8277 core (log): refactoring + twisted backend:
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parents: 1006
diff changeset
136 print("Unmanaged observer [%s]" % observer)
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
137 return observer
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
138 self.observers[ori] = observer
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
139 return observer
991
05e02f8b7eb4 core: logging refactoring, first step:
Goffi <goffi@goffi.org>
parents:
diff changeset
140
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
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diff changeset
141 def preTreatment(self):
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diff changeset
142 """initialise needed attributes, and install observers hooks"""
a7d33c7a8277 core (log): refactoring + twisted backend:
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parents: 1006
diff changeset
143 self.observers = {}
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
144 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
145 self.twisted_log = 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
146 self.log_publisher = twisted_log.msg.__self__
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
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parents: 1006
diff changeset
147 def addObserverObserver(self_logpub, other):
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diff changeset
148 """Install hook so we know when a new observer is added"""
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parents: 1006
diff changeset
149 other = self.installObserverHook(other)
a7d33c7a8277 core (log): refactoring + twisted backend:
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parents: 1006
diff changeset
150 return self_logpub._originalAddObserver(other)
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
151 def removeObserverObserver(self_logpub, ori):
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
152 """removeObserver hook fix
a7d33c7a8277 core (log): refactoring + twisted backend:
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parents: 1006
diff changeset
153
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
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
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
155 """
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
156 if ori in self.observers:
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
157 self_logpub._originalRemoveObserver(self.observers[ori])
1005
b4af31a8a4f2 core (logs): added formatting, name filter and outputs management:
Goffi <goffi@goffi.org>
parents: 994
diff changeset
158 else:
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
159 try:
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
160 self_logpub._originalRemoveObserver(ori)
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
161 except ValueError:
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
162 try:
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
163 ori in self.cleared_observers
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
164 except AttributeError:
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
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diff changeset
165 raise ValueError("Unknown observer")
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
166
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
167 # we replace addObserver/removeObserver by our own
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
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.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
169 twisted_log.LogPublisher._originalRemoveObserver = twisted_log.LogPublisher.removeObserver
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
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.
Goffi <goffi@goffi.org>
parents: 1017
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>
parents: 1017
diff changeset
172 twisted_log.removeObserver = types.MethodType(removeObserverObserver, self.log_publisher, twisted_log.LogPublisher)
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
173
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
174 # we now change existing observers
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
175 for idx, observer in enumerate(self.log_publisher.observers):
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
176 self.log_publisher.observers[idx] = self.installObserverHook(observer)
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
177
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
178 def configureLevel(self, level):
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
179 self.LOGGER_CLASS.level = level
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
180 super(ConfigureTwisted, self).configureLevel(level)
a7d33c7a8277 core (log): refactoring + twisted backend:
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parents: 1006
diff changeset
181
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
182 def configureOutput(self, output):
a7d33c7a8277 core (log): refactoring + twisted backend:
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parents: 1006
diff changeset
183 import sys
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
184 if output is None:
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
185 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
186 self.manageOutputs(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
187 addObserver = self.twisted_log.addObserver
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
188
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
189 if C.LOG_OPT_OUTPUT_DEFAULT in log.handlers:
1116
ee450d7c88a7 core (logging): logging is added to stdout in nodaemon mode (it was already the case in debug mode)
Goffi <goffi@goffi.org>
parents: 1021
diff changeset
190 # default output is already managed, we just add output to stdout if we are in debug or nodaemon mode
ee450d7c88a7 core (logging): logging is added to stdout in nodaemon mode (it was already the case in debug mode)
Goffi <goffi@goffi.org>
parents: 1021
diff changeset
191
1121
64ff259d3cbb core (logging): fixed twisted backend for twistd plugin, /!\ stdout logging in debug/nodaemon mode does'nt work anymore with .tac files.
Goffi <goffi@goffi.org>
parents: 1116
diff changeset
192 def postOptions(options): # called after options are parsed
64ff259d3cbb core (logging): fixed twisted backend for twistd plugin, /!\ stdout logging in debug/nodaemon mode does'nt work anymore with .tac files.
Goffi <goffi@goffi.org>
parents: 1116
diff changeset
193 if options.get('nodaemon', False) or options.get('debug', False):
64ff259d3cbb core (logging): fixed twisted backend for twistd plugin, /!\ stdout logging in debug/nodaemon mode does'nt work anymore with .tac files.
Goffi <goffi@goffi.org>
parents: 1116
diff changeset
194 addObserver(self.twisted_log.FileLogObserver(sys.stdout).emit)
64ff259d3cbb core (logging): fixed twisted backend for twistd plugin, /!\ stdout logging in debug/nodaemon mode does'nt work anymore with .tac files.
Goffi <goffi@goffi.org>
parents: 1116
diff changeset
195
1116
ee450d7c88a7 core (logging): logging is added to stdout in nodaemon mode (it was already the case in debug mode)
Goffi <goffi@goffi.org>
parents: 1021
diff changeset
196 # XXX: this hack is to know if we are in debug or nodaemon mode
ee450d7c88a7 core (logging): logging is added to stdout in nodaemon mode (it was already the case in debug mode)
Goffi <goffi@goffi.org>
parents: 1021
diff changeset
197 # any better method welcomed
ee450d7c88a7 core (logging): logging is added to stdout in nodaemon mode (it was already the case in debug mode)
Goffi <goffi@goffi.org>
parents: 1021
diff changeset
198 from twisted.scripts import twistd
1121
64ff259d3cbb core (logging): fixed twisted backend for twistd plugin, /!\ stdout logging in debug/nodaemon mode does'nt work anymore with .tac files.
Goffi <goffi@goffi.org>
parents: 1116
diff changeset
199 # we monkey patch ServerOptions to be sure options.get is done after options are fully parsed
64ff259d3cbb core (logging): fixed twisted backend for twistd plugin, /!\ stdout logging in debug/nodaemon mode does'nt work anymore with .tac files.
Goffi <goffi@goffi.org>
parents: 1116
diff changeset
200 # XXX: only works with twistd plugins, not with .tac files !
64ff259d3cbb core (logging): fixed twisted backend for twistd plugin, /!\ stdout logging in debug/nodaemon mode does'nt work anymore with .tac files.
Goffi <goffi@goffi.org>
parents: 1116
diff changeset
201 twistd.ServerOptions.postOptions = postOptions
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
202 else:
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
203 # \\default is not in the output, so we remove current observers
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
204 self.cleared_observers = self.log_publisher.observers
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
205 self.observers.clear()
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
206 del self.log_publisher.observers[:]
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
207 # 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
208 self.twisted_log.addObserver = lambda other: None
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
209
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
210 if C.LOG_OPT_OUTPUT_FILE in log.handlers:
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
211 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
212 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
213 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
214 addObserver(self.twisted_log.FileLogObserver(log_file).emit)
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
215
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
216 if C.LOG_OPT_OUTPUT_MEMORY in log.handlers:
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
217 raise NotImplementedError("Memory observer is not implemented in Twisted backend")
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
218
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
219 def configureColors(self, colors, force_colors):
a7d33c7a8277 core (log): refactoring + twisted backend:
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parents: 1006
diff changeset
220 self.LOGGER_CLASS.colors = colors
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
221 self.LOGGER_CLASS.force_colors = force_colors
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
222 if force_colors and not colors:
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
223 raise ValueError('colors must be True if force_colors is True')
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
224
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
225 def postTreatment(self):
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
226 """Install twistedObserver which manage non SàT logs"""
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
227 def twistedObserver(event):
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
228 """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
229 if not 'sat_logged' in event:
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
230 # 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
231 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
232 text = twisted_log.textFromEventDict(event)
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
233 if text is None:
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
234 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
235 twisted_logger = log.getLogger(C.LOG_TWISTED_LOGGER)
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
236 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
237 log_method(text.decode('utf-8'))
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
238
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
239 self.log_publisher._originalAddObserver(twistedObserver)
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
240
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
241
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
242 class ConfigureStandard(ConfigureBasic):
1007
a7d33c7a8277 core (log): refactoring + twisted backend:
Goffi <goffi@goffi.org>
parents: 1006
diff changeset
243
1010
73a0b7f94674 primitivus: use of new logging system:
Goffi <goffi@goffi.org>
parents: 1008
diff changeset
244 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
245 if fmt is None:
73a0b7f94674 primitivus: use of new logging system:
Goffi <goffi@goffi.org>
parents: 1008
diff changeset
246 fmt = C.LOG_OPT_FORMAT[1]
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247 if output is None:
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248 output = C.LOG_OPT_OUTPUT[1]
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249 super(ConfigureStandard, self).__init__(level, fmt, output, logger, colors, force_colors)
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250
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251 def preTreatment(self):
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252 """We use logging methods directly, instead of using Logger"""
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253 import logging
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254 log.getLogger = logging.getLogger
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255 log.debug = logging.debug
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256 log.info = logging.info
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257 log.warning = logging.warning
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258 log.error = logging.error
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259 log.critical = logging.critical
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260
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261 def configureLevel(self, level):
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diff changeset
262 if level is None:
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diff changeset
263 level = C.LOG_LVL_DEBUG
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264 self.level = level
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265
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diff changeset
266 def configureFormat(self, fmt):
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267 import logging
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268
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269 class SatFormatter(logging.Formatter):
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270 u"""Formatter which manage SàT specificities"""
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271 _format = fmt
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272 _with_profile = '%(profile)s' in fmt
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273
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274 def __init__(self, can_colors=False):
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275 super(SatFormatter, self).__init__(self._format)
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276 self.can_colors = can_colors
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277
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278 def format(self, record):
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diff changeset
279 if self._with_profile:
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280 record.profile = ConfigureStandard.getProfile()
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diff changeset
281 s = super(SatFormatter, self).format(record)
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diff changeset
282 if self.with_colors and (self.can_colors or self.force_colors):
1021
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283 s = ConfigureStandard.ansiColors(record.levelname, s)
1007
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diff changeset
284 return s
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285
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diff changeset
286 self.formatterClass = SatFormatter
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287
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diff changeset
288 def configureOutput(self, output):
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diff changeset
289 self.manageOutputs(output)
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290
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diff changeset
291 def configureLogger(self, logger):
1021
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diff changeset
292 self.name_filter = log.FilterName(logger) if logger else None
1007
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diff changeset
293
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294 def configureColors(self, colors, force_colors):
1012
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diff changeset
295 self.formatterClass.with_colors = colors
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diff changeset
296 self.formatterClass.force_colors = force_colors
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diff changeset
297 if not colors and force_colors:
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diff changeset
298 raise ValueError("force_colors can't be used if colors is False")
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diff changeset
299
1012
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diff changeset
300 def _addHandler(self, root_logger, hdlr, can_colors=False):
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diff changeset
301 hdlr.setFormatter(self.formatterClass(can_colors))
1007
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diff changeset
302 root_logger.addHandler(hdlr)
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diff changeset
303 root_logger.setLevel(self.level)
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diff changeset
304 if self.name_filter is not None:
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diff changeset
305 hdlr.addFilter(self.name_filter)
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diff changeset
306
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diff changeset
307 def postTreatment(self):
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diff changeset
308 import logging
a7d33c7a8277 core (log): refactoring + twisted backend:
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diff changeset
309 root_logger = logging.getLogger()
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diff changeset
310 if len(root_logger.handlers) == 0:
1021
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diff changeset
311 for handler, options in log.handlers.items():
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diff changeset
312 if handler == C.LOG_OPT_OUTPUT_DEFAULT:
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diff changeset
313 hdlr = logging.StreamHandler()
1012
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diff changeset
314 try:
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diff changeset
315 can_colors = hdlr.stream.isatty()
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diff changeset
316 except AttributeError:
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diff changeset
317 can_colors = False
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diff changeset
318 self._addHandler(root_logger, hdlr, can_colors=can_colors)
1007
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diff changeset
319 elif handler == C.LOG_OPT_OUTPUT_MEMORY:
1010
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diff changeset
320 from logging.handlers import BufferingHandler
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diff changeset
321 class SatMemoryHandler(BufferingHandler):
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diff changeset
322 def emit(self, record):
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diff changeset
323 super(SatMemoryHandler, self).emit(self.format(record))
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diff changeset
324 hdlr = SatMemoryHandler(options)
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
325 log.handlers[handler] = hdlr # we keep a reference to the handler to read the buffer later
1012
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diff changeset
326 self._addHandler(root_logger, hdlr, can_colors=False)
1007
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diff changeset
327 elif handler == C.LOG_OPT_OUTPUT_FILE:
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diff changeset
328 import os.path
a7d33c7a8277 core (log): refactoring + twisted backend:
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diff changeset
329 for path in options:
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diff changeset
330 hdlr = logging.FileHandler(os.path.expanduser(path))
1012
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diff changeset
331 self._addHandler(root_logger, hdlr, can_colors=False)
1007
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diff changeset
332 else:
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diff changeset
333 raise ValueError("Unknown handler type")
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diff changeset
334 else:
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diff changeset
335 root_logger.warning(u"Handlers already set on root logger")
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diff changeset
336
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
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diff changeset
337 @staticmethod
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
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diff changeset
338 def memoryGet(size=None):
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
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diff changeset
339 """Return buffered logs
1006
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diff changeset
340
1021
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
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diff changeset
341 @param size: number of logs to return
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
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diff changeset
342 """
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
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diff changeset
343 mem_handler = log.handlers[C.LOG_OPT_OUTPUT_MEMORY]
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
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diff changeset
344 return (log_msg for log_msg in mem_handler.buffer[size if size is None else -size:])
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diff changeset
345
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
Goffi <goffi@goffi.org>
parents: 1017
diff changeset
346
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
347 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>
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diff changeset
348 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>
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diff changeset
349 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>
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diff changeset
350
a836b6da2c5c core (log): moved configuration to core.log_config; this avoid import issues with pyjamas.
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diff changeset
351 def configure(backend, **options):
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diff changeset
352 """Configure logging behaviour
991
05e02f8b7eb4 core: logging refactoring, first step:
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diff changeset
353 @param backend: can be:
05e02f8b7eb4 core: logging refactoring, first step:
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diff changeset
354 C.LOG_BACKEND_STANDARD: use standard logging module
05e02f8b7eb4 core: logging refactoring, first step:
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diff changeset
355 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
356 C.LOG_BACKEND_BASIC: use a basic print based logging
1017
0ea97f483464 core (log): added "custom" backend
Goffi <goffi@goffi.org>
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diff changeset
357 C.LOG_BACKEND_CUSTOM: use a given Logger subclass
991
05e02f8b7eb4 core: logging refactoring, first step:
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parents:
diff changeset
358 """
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
359 return log.configure(backend, **options)
991
05e02f8b7eb4 core: logging refactoring, first step:
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parents:
diff changeset
360
994
652c01ca69b1 core (log): configuration and environment variables are now checked for log level and colors:
Goffi <goffi@goffi.org>
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diff changeset
361 def _parseOptions(options):
652c01ca69b1 core (log): configuration and environment variables are now checked for log level and colors:
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parents: 992
diff changeset
362 """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:
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parents: 992
diff changeset
363
652c01ca69b1 core (log): configuration and environment variables are now checked for log level and colors:
Goffi <goffi@goffi.org>
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diff changeset
364 @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:
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diff changeset
365 """
1005
b4af31a8a4f2 core (logs): added formatting, name filter and outputs management:
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diff changeset
366 COLORS = C.LOG_OPT_COLORS[0]
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parents: 994
diff changeset
367 LEVEL = C.LOG_OPT_LEVEL[0]
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Goffi <goffi@goffi.org>
parents: 994
diff changeset
368
b4af31a8a4f2 core (logs): added formatting, name filter and outputs management:
Goffi <goffi@goffi.org>
parents: 994
diff changeset
369 if COLORS in options:
b4af31a8a4f2 core (logs): added formatting, name filter and outputs management:
Goffi <goffi@goffi.org>
parents: 994
diff changeset
370 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
371 options[COLORS] = True
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372 elif options[COLORS] == 'force':
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373 options[COLORS] = True
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374 options['force_colors'] = True
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375 else:
1005
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376 options[COLORS] = False
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377 if LEVEL in options:
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378 level = options[LEVEL].upper()
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379 if level not in C.LOG_LEVELS:
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380 level = C.LOG_LVL_INFO
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381 options[LEVEL] = level
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382
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383 def satConfigure(backend=C.LOG_BACKEND_STANDARD, const=None):
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384 """Configure logging system for SàT, can be used by frontends
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385
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386 logs conf is read in SàT conf, then in environment variables. It must be done before Memory init
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387 @param backend: backend to use, it can be:
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388 - C.LOG_BACKEND_BASIC: print based backend
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389 - C.LOG_BACKEND_TWISTED: Twisted logging backend
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390 - C.LOG_BACKEND_STANDARD: standard logging backend
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391 @param const: Const class to use instead of sat.core.constants.Const (mainly used to change default values)
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392 """
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393 if const is not None:
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394 global C
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395 C = const
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396 log.C = const
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397 import ConfigParser
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398 import os
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399 log_conf = {}
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400 config = ConfigParser.SafeConfigParser()
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401 config.read(C.CONFIG_FILES)
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402 for opt_name, opt_default in C.LOG_OPTIONS():
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403 try:
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404 log_conf[opt_name] = os.environ[''.join((C.ENV_PREFIX, C.LOG_OPT_PREFIX.upper(), opt_name.upper()))]
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405 except KeyError:
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406 try:
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407 log_conf[opt_name] = config.get(C.LOG_OPT_SECTION, C.LOG_OPT_PREFIX + opt_name)
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408 except (ConfigParser.NoOptionError, ConfigParser.NoSectionError):
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409 log_conf[opt_name] = opt_default
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410
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411 _parseOptions(log_conf)
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412 configure(backend, **log_conf)