klippy_connection: update configuration

Use the ConfigHelper's getpath() method to configure the
unix socket.  The option may now be a template where the
datapath is passed into the context.

Signed-off-by:  Eric Callahan <arksine.code@gmail.com>

moonraker/klippy_connection.py

@@ -11,7 +11,6 @@ import time
 import logging
 import json
 import getpass
-import confighelper
 import asyncio
 import socket
 import struct
@@ -31,8 +30,10 @@ from typing import (
     Set,
 )
 if TYPE_CHECKING:
+    from moonraker import Server
     from app import MoonrakerApp
     from websockets import WebRequest, Subscribable
+    from confighelper import ConfigHelper
     from components.klippy_apis import KlippyAPI
     from components.file_manager.file_manager import FileManager
     from components.machine import Machine
@@ -45,11 +46,9 @@ MAX_LOG_ATTEMPTS = 10 * LOG_ATTEMPT_INTERVAL
 UNIX_BUFFER_LIMIT = 20 * 1024 * 1024
 
 class KlippyConnection:
-    def __init__(self, config: confighelper.ConfigHelper) -> None:
-        self.server = config.get_server()
-        uds_addr: str = config.get(
-            'klippy_uds_address', "/tmp/klippy_uds")
-        self.uds_address = pathlib.Path(uds_addr).expanduser().resolve()
+    def __init__(self, server: Server) -> None:
+        self.server = server
+        self.uds_address = pathlib.Path("/tmp/klippy_uds")
         self.writer: Optional[asyncio.StreamWriter] = None
         self.connection_mutex: asyncio.Lock = asyncio.Lock()
         self.event_loop = self.server.get_event_loop()
@@ -81,6 +80,11 @@ class KlippyConnection:
             need_klippy_reg=False)
         self.server.register_component("klippy_connection", self)
 
+    def configure(self, config: ConfigHelper):
+        self.uds_address = config.getpath(
+            "klippy_uds_address", self.uds_address
+        )
+
     @property
     def klippy_apis(self) -> KlippyAPI:
         return self.server.lookup_component("klippy_apis")

moonraker/moonraker.py

@@ -82,8 +82,7 @@ class Server:
         log_level = logging.DEBUG if args["verbose"] else logging.INFO
         logging.getLogger().setLevel(log_level)
         self.event_loop.set_debug(args["asyncio_debug"])
-
-        self.klippy_connection = KlippyConnection(config)
+        self.klippy_connection = KlippyConnection(self)
 
         # Tornado Application/Server
         self.moonraker_app = app = MoonrakerApp(config)
@@ -232,6 +231,7 @@ class Server:
         for section in cfg_sections:
             self.load_component(config, section, None)
 
+        self.klippy_connection.configure(config)
         config.validate_config()
 
     def load_component(self,