add logging to request handling

src/flask/__init__.py

@@ -57,4 +57,4 @@ from .signals import template_rendered
 from .templating import render_template
 from .templating import render_template_string
 
-__version__ = "1.1.4"
+__version__ = "1.1.4.dev1"

src/flask/app.py

@@ -10,6 +10,7 @@
 """
 import os
 import sys
+import threading
 import warnings
 from datetime import timedelta
 from functools import update_wrapper
@@ -1942,14 +1943,19 @@ class Flask(_PackageBoundObject):
 
         .. versionadded:: 0.7
         """
+        thread_name = threading.currentThread().getName()
+        self.logger.info(f"{thread_name}: calling try_trigger_before_first_request_functions")
         self.try_trigger_before_first_request_functions()
         try:
+            self.logger.info(f"{thread_name}: calling preprocess_request")
             request_started.send(self)
             rv = self.preprocess_request()
             if rv is None:
+                self.logger.info(f"{thread_name}: calling dispatch_request")
                 rv = self.dispatch_request()
         except Exception as e:
             rv = self.handle_user_exception(e)
+        self.logger.info(f"{thread_name}: calling finalize_request")
         return self.finalize_request(rv)
 
     def finalize_request(self, rv, from_error_handler=False):
@@ -2439,11 +2445,15 @@ class Flask(_PackageBoundObject):
             a list of headers, and an optional exception context to
             start the response.
         """
+        thread_name = threading.currentThread().getName()
+        self.logger.info(f"{thread_name}: Creating request_context")
         ctx = self.request_context(environ)
         error = None
         try:
             try:
+                self.logger.info(f"{thread_name}: Pushing request_context")
                 ctx.push()
+                self.logger.info(f"{thread_name}: Calling dispatch")
                 response = self.full_dispatch_request()
             except Exception as e:
                 error = e
@@ -2453,6 +2463,7 @@ class Flask(_PackageBoundObject):
                 raise
             return response(environ, start_response)
         finally:
+            self.logger.info(f"{thread_name}: wsgi_app finally")
             if self.should_ignore_error(error):
                 error = None
             ctx.auto_pop(error)