Dont add wifi block to yaml if discovered device uses ethernet (#3882)

esphome/components/dashboard_import/__init__.py

@@ -3,6 +3,7 @@ from pathlib import Path
 import esphome.codegen as cg
 import esphome.config_validation as cv
 from esphome.components.packages import validate_source_shorthand
+from esphome.const import CONF_WIFI
 from esphome.wizard import wizard_file
 from esphome.yaml_util import dump
 
@@ -43,7 +44,9 @@ async def to_code(config):
     cg.add(dashboard_import_ns.set_package_import_url(config[CONF_PACKAGE_IMPORT_URL]))
 
 
-def import_config(path: str, name: str, project_name: str, import_url: str) -> None:
+def import_config(
+    path: str, name: str, project_name: str, import_url: str, network: str = CONF_WIFI
+) -> None:
     p = Path(path)
 
     if p.exists():
@@ -69,7 +72,9 @@ def import_config(path: str, name: str, project_name: str, import_url: str) -> N
                 "name_add_mac_suffix": False,
             },
         }
-        p.write_text(
-            dump(config) + WIFI_CONFIG,
-            encoding="utf8",
-        )
+        output = dump(config)
+
+        if network == CONF_WIFI:
+            output += WIFI_CONFIG
+
+        p.write_text(output, encoding="utf8")

esphome/dashboard/dashboard.py

@@ -395,11 +395,22 @@ class ImportRequestHandler(BaseHandler):
         args = json.loads(self.request.body.decode())
         try:
             name = args["name"]
+
+            imported_device = next(
+                (res for res in IMPORT_RESULT.values() if res.device_name == name), None
+            )
+
+            if imported_device is not None:
+                network = imported_device.network
+            else:
+                network = const.CONF_WIFI
+
             import_config(
                 settings.rel_path(f"{name}.yaml"),
                 name,
                 args["project_name"],
                 args["package_import_url"],
+                network,
             )
         except FileExistsError:
             self.set_status(500)