apply proposed changes - @nicoddemus

src/_pytest/logging.py

@@ -298,11 +298,11 @@ def add_option_ini(option, dest, default=None, type=None, **kwargs):
         help="Auto-indent multiline messages passed to the logging module. Accepts true|on, false|off or an integer.",
     )
     group.addoption(
-        "--logger-disable",
+        "--log-disable",
         action="append",
         default=[],
         dest="logger_disable",
-        help="Disable loggers by name",
+        help="Disable a logger by name. Can be passed multipe times.",
     )
 
 
@@ -601,14 +601,13 @@ def __init__(self, config: Config) -> None:
             get_option_ini(config, "log_auto_indent"),
         )
         self.log_cli_handler.setFormatter(log_cli_formatter)
-        self._disable_logger(loggers_to_disable=config.option.logger_disable)
+        self._disable_loggers(loggers_to_disable=config.option.logger_disable)
 
-    def _disable_logger(self, loggers_to_disable: List[str]) -> None:
+    def _disable_loggers(self, loggers_to_disable: List[str]) -> None:
         if not loggers_to_disable:
             return
 
-        logger_names_to_suppress = set(loggers_to_disable)
-        for name in logger_names_to_suppress:
+        for name in loggers_to_disable:
             logger = logging.getLogger(name)
             logger.disabled = True
 

testing/logging/test_reporting.py

@@ -1178,11 +1178,10 @@ def test_logger_propagation(caplog):
             with caplog.at_level(logging.DEBUG):
                 disabled_log.warning("no log; no stderr")
                 test_log.debug("Visible text!")
-                print(os.linesep)
                 assert caplog.record_tuples == [('test', 10, 'Visible text!')]
          """
     )
-    result = testdir.runpytest("--logger-disable=disabled", "-s")
+    result = testdir.runpytest("--log-disable=disabled", "-s")
     assert result.ret == ExitCode.OK
     assert not result.stderr.lines
 
@@ -1198,24 +1197,17 @@ def test_disable_loggers_does_not_propagate(testdir):
 
     def test_logger_propagation_to_parent(caplog):
             with caplog.at_level(logging.DEBUG):
-                child_logger.warning("some message")
-                print(os.linesep)
-                assert not caplog.record_tuples
+                parent_logger.warning("some parent logger message")
+                child_logger.warning("some child logger message")
+                assert len(caplog.record_tuples) == 1
     """
     )
 
-    result = testdir.runpytest("--logger-disable=parent.child", "-s")
+    result = testdir.runpytest("--log-disable=parent.child", "-s")
     assert result.ret == ExitCode.OK
     assert not result.stderr.lines
 
 
-def test_disabled_loggers_help(testdir):
-    result = testdir.runpytest("-h")
-    result.stdout.fnmatch_lines(
-        ["  --logger-disable=LOGGER_DISABLE", "*Disable loggers by name*"]
-    )
-
-
 def test_log_disabling_works_with_log_cli(testdir):
     testdir.makepyfile(
         """
@@ -1230,7 +1222,7 @@ def test_log_cli_works(caplog):
     )
     result = testdir.runpytest(
         "--log-cli-level=DEBUG",
-        "--logger-disable=disabled",
+        "--log-disable=disabled",
     )
     assert result.ret == ExitCode.OK
     result.stdout.fnmatch_lines(