Restructure of CLI and application state (#2295)

* Initial work on restructure of application state

* Updated MOTD with more flexible input and add basic version

* Remove unnecessary type ignores

* Add wrapping and smarter output per process type

* Add support for ASGI MOTD

* Add Windows color support ernable

* Refactor __main__ into submodule

* Renest arguments

* Passing unit tests

* Passing unit tests

* Typing

* Fix num worker test

* Add context to assert failure

* Add some type annotations

* Some linting

* Line aware searching in test

* Test abstractions

* Fix some flappy tests

* Bump up timeout on CLI tests

* Change test for no access logs on gunicornworker

* Add some basic test converage

* Some new tests, and disallow workers and fast on app.run

sanic/server/runners.py

@@ -134,6 +134,7 @@ def serve(
     # Ignore SIGINT when run_multiple
     if run_multiple:
         signal_func(SIGINT, SIG_IGN)
+        os.environ["SANIC_WORKER_PROCESS"] = "true"
 
     # Register signals for graceful termination
     if register_sys_signals:
@@ -181,7 +182,6 @@ def serve(
             else:
                 conn.abort()
         loop.run_until_complete(app._server_event("shutdown", "after"))
-
         remove_unix_socket(unix)
 
 
@@ -249,7 +249,10 @@ def serve_multiple(server_settings, workers):
     mp = multiprocessing.get_context("fork")
 
     for _ in range(workers):
-        process = mp.Process(target=serve, kwargs=server_settings)
+        process = mp.Process(
+            target=serve,
+            kwargs=server_settings,
+        )
         process.daemon = True
         process.start()
         processes.append(process)