source: sasview/src/sas/logger_config.py @ 144fe21

ESS_GUIESS_GUI_batch_fittingESS_GUI_bumps_abstractionESS_GUI_iss1116ESS_GUI_iss879ESS_GUI_openclESS_GUI_orderingESS_GUI_sync_sascalc
Last change on this file since 144fe21 was e4335ae, checked in by Piotr Rozyczko <piotr.rozyczko@…>, 3 years ago

SASVIEW-957 logging changes (#158)

  • rework XStream to continue to write to stdout/stderr alongside redirection; make logging level setting consistent; make log configuration more consistent
  • rm XStream; QT signal in QtHandler? logging handler; only logs in Log Explorer (no stdout/stderr)
  • no need to change handler level
  • use QTextBrowser.append to facilitate auto-scrolling in the Log Explorer
  • modify logger unit test to reflect changes (passes)
  • Property mode set to 100644
File size: 2.4 KB
Line 
1from __future__ import print_function
2
3import logging
4import logging.config
5import os
6import os.path
7
8import pkg_resources
9
10'''
11Module that manages the global logging
12'''
13
14
15class SetupLogger(object):
16    '''
17    Called at the beginning of run.py or sasview.py
18    '''
19
20    def __init__(self, logger_name):
21        self._find_config_file()
22        self.name = logger_name
23
24    def config_production(self):
25        logger = logging.getLogger(self.name)
26        if not logger.root.handlers:
27            self._read_config_file()
28            logging.captureWarnings(True)
29            logger = logging.getLogger(self.name)
30
31        return logger
32
33    def config_development(self):
34        '''
35        '''
36        self._read_config_file()
37        logger = logging.getLogger(self.name)
38        self._update_all_logs_to_debug(logger)
39        logging.captureWarnings(True)
40
41        return logger
42
43    def _read_config_file(self):
44        if self.config_file is not None:
45            logging.config.fileConfig(self.config_file)
46
47    def _update_all_logs_to_debug(self, logger):
48        '''
49        This updates all loggers and respective handlers to DEBUG
50        '''
51        for handler in logger.handlers or logger.parent.handlers:
52            handler.setLevel(logging.DEBUG)
53        for name, _ in logging.Logger.manager.loggerDict.items():
54            logging.getLogger(name).setLevel(logging.DEBUG)
55
56    def _find_config_file(self, filename="logging.ini"):
57        '''
58        The config file is in:
59        Debug ./sasview/
60        Packaging: sas/sasview/
61        Packaging / production does not work well with absolute paths
62        thus the multiple paths below
63        '''
64        places_to_look_for_conf_file = [
65            os.path.join(os.path.abspath(os.path.dirname(__file__)), filename),
66            filename,
67            os.path.join("sas", "sasview", filename),
68            os.path.join(os.getcwd(), "sas", "sasview", filename),
69        ]
70
71        # To avoid the exception in OSx
72        # NotImplementedError: resource_filename() only supported for .egg, not .zip
73        try:
74            places_to_look_for_conf_file.append(
75                pkg_resources.resource_filename(__name__, filename))
76        except NotImplementedError:
77            pass
78
79        for filepath in places_to_look_for_conf_file:
80            if os.path.exists(filepath):
81                self.config_file = filepath
82                return
83        print("ERROR: Logging.ini not found...")
84        self.config_file = None
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