Remove windows support

We deprecated it in 2024.1[1] so we can drop it now.

[1] f3693db5ee

Change-Id: I0a0ae4d4ce9b21c06fd5bfa306c35bb5d7c34ed4

oslo_log/_options.py

@@ -113,11 +113,6 @@ generic_log_opts = [
                 default=False,
                 help='Log output to standard error. '
                      + _IGNORE_MESSAGE),
-    cfg.BoolOpt('use_eventlog',
-                default=False,
-                deprecated_for_removal=True,
-                deprecated_reason='Windows support is no longer maintained.',
-                help='Log output to Windows Event Log.'),
     cfg.BoolOpt('log_color',
                 default=False,
                 help='(Optional) Set the \'color\' key according to log '

oslo_log/log.py

@@ -32,7 +32,6 @@ import logging
 import logging.config
 import logging.handlers
 import os
-import platform
 import sys
 try:
     import syslog
@@ -418,14 +417,6 @@ def _setup_logging_from_conf(conf, project, version):
         journal = handlers.OSJournalHandler(facility=facility)
         log_root.addHandler(journal)
 
-    if conf.use_eventlog:
-        if platform.system() == 'Windows':
-            eventlog = logging.handlers.NTEventLogHandler(project)
-            log_root.addHandler(eventlog)
-        else:
-            raise RuntimeError(_("Windows Event Log is not available on this "
-                                 "platform."))
-
     # if None of the above are True, then fall back to standard out
     if not logpath and not conf.use_stderr and not conf.use_journal:
         if conf.log_color:

oslo_log/tests/unit/test_log.py

@@ -134,25 +134,6 @@ class CommonLoggerTestsMixIn(object):
                      'info', 'debug', 'log'):
             self.assertRaises(AttributeError, getattr, log, func)
 
-    @mock.patch('platform.system', return_value='Linux')
-    def test_eventlog_missing(self, platform_mock):
-        self.config(use_eventlog=True)
-        self.assertRaises(RuntimeError,
-                          log._setup_logging_from_conf,
-                          self.CONF,
-                          'test',
-                          'test')
-
-    @mock.patch('platform.system', return_value='Windows')
-    @mock.patch('logging.handlers.NTEventLogHandler')
-    @mock.patch('oslo_log.log.getLogger')
-    def test_eventlog(self, loggers_mock, handler_mock, platform_mock):
-        self.config(use_eventlog=True)
-        log._setup_logging_from_conf(self.CONF, 'test', 'test')
-        handler_mock.assert_called_once_with('test')
-        mock_logger = loggers_mock.return_value.logger
-        mock_logger.addHandler.assert_any_call(handler_mock.return_value)
-
     @mock.patch('logging.handlers.TimedRotatingFileHandler')
     @mock.patch('oslo_log.log._get_log_file_path', return_value='test.conf')
     def test_timed_rotate_log(self, path_mock, handler_mock):

releasenotes/notes/remove-windows-c2e4c97f19082d27.yaml

@@ -0,0 +1,6 @@
+---
+upgrade:
+  - |
+    Support for Windows operating systems has been removed. Because of
+    the removal, the deprecated ``[DEFAULT] use_eventlog`` option has been
+    removed.