feat(loguru): Capture extra (#5096)

### Description
Add `extra` from records to attributes.

Note: This doesn't fully fix
#4475 since we still
don't have a good way to get the raw, unformatted message, but it's an
improvement.

#### Issues
Related to #4475

Author: sentrivana

sentry_sdk/integrations/loguru.py

@@ -8,7 +8,7 @@
     _BaseHandler,
 )
 from sentry_sdk.logger import _log_level_to_otel
-from sentry_sdk.utils import has_logs_enabled
+from sentry_sdk.utils import has_logs_enabled, safe_repr
 
 from typing import TYPE_CHECKING
 
@@ -193,6 +193,14 @@ def loguru_sentry_logs_handler(message):
     if record.get("name"):
         attrs["logger.name"] = record["name"]
 
+    extra = record.get("extra")
+    if isinstance(extra, dict):
+        for key, value in extra.items():
+            if isinstance(value, (str, int, float, bool)):
+                attrs[f"sentry.message.parameter.{key}"] = value
+            else:
+                attrs[f"sentry.message.parameter.{key}"] = safe_repr(value)
+
     client._capture_log(
         {
             "severity_text": otel_severity_text,

tests/integrations/loguru/test_loguru.py

@@ -473,6 +473,103 @@ def test_logger_with_all_attributes(
     }
 
 
+def test_logger_capture_parameters_from_args(
+    sentry_init, capture_envelopes, uninstall_integration, request
+):
+    # This is currently not supported as regular args don't get added to extra
+    # (which we use for populating parameters). Adding this test to make that
+    # explicit and so that it's easy to change later.
+    uninstall_integration("loguru")
+    request.addfinalizer(logger.remove)
+
+    sentry_init(enable_logs=True)
+    envelopes = capture_envelopes()
+
+    logger.warning("Task ID: {}", 123)
+
+    sentry_sdk.get_client().flush()
+
+    logs = envelopes_to_logs(envelopes)
+
+    attributes = logs[0]["attributes"]
+    assert "sentry.message.parameter.0" not in attributes
+
+
+def test_logger_capture_parameters_from_kwargs(
+    sentry_init, capture_envelopes, uninstall_integration, request
+):
+    uninstall_integration("loguru")
+    request.addfinalizer(logger.remove)
+
+    sentry_init(enable_logs=True)
+    envelopes = capture_envelopes()
+
+    logger.warning("Task ID: {task_id}", task_id=123)
+
+    sentry_sdk.get_client().flush()
+
+    logs = envelopes_to_logs(envelopes)
+
+    attributes = logs[0]["attributes"]
+    assert attributes["sentry.message.parameter.task_id"] == 123
+
+
+def test_logger_capture_parameters_from_contextualize(
+    sentry_init, capture_envelopes, uninstall_integration, request
+):
+    uninstall_integration("loguru")
+    request.addfinalizer(logger.remove)
+
+    sentry_init(enable_logs=True)
+    envelopes = capture_envelopes()
+
+    with logger.contextualize(task_id=123):
+        logger.warning("Log")
+
+    sentry_sdk.get_client().flush()
+
+    logs = envelopes_to_logs(envelopes)
+
+    attributes = logs[0]["attributes"]
+    assert attributes["sentry.message.parameter.task_id"] == 123
+
+
+def test_logger_capture_parameters_from_bind(
+    sentry_init, capture_envelopes, uninstall_integration, request
+):
+    uninstall_integration("loguru")
+    request.addfinalizer(logger.remove)
+
+    sentry_init(enable_logs=True)
+    envelopes = capture_envelopes()
+
+    logger.bind(task_id=123).warning("Log")
+    sentry_sdk.get_client().flush()
+
+    logs = envelopes_to_logs(envelopes)
+
+    attributes = logs[0]["attributes"]
+    assert attributes["sentry.message.parameter.task_id"] == 123
+
+
+def test_logger_capture_parameters_from_patch(
+    sentry_init, capture_envelopes, uninstall_integration, request
+):
+    uninstall_integration("loguru")
+    request.addfinalizer(logger.remove)
+
+    sentry_init(enable_logs=True)
+    envelopes = capture_envelopes()
+
+    logger.patch(lambda record: record["extra"].update(task_id=123)).warning("Log")
+    sentry_sdk.get_client().flush()
+
+    logs = envelopes_to_logs(envelopes)
+
+    attributes = logs[0]["attributes"]
+    assert attributes["sentry.message.parameter.task_id"] == 123
+
+
 def test_no_parameters_no_template(
     sentry_init, capture_envelopes, uninstall_integration, request
 ):