improve config validation error messages

frigate/app.py

@@ -16,6 +16,7 @@ import psutil
 from peewee_migrate import Router
 from playhouse.sqlite_ext import SqliteExtDatabase
 from playhouse.sqliteq import SqliteQueueDatabase
+from pydantic import ValidationError
 
 from frigate.api.app import create_app
 from frigate.comms.config_updater import ConfigPublisher
@@ -611,6 +612,11 @@ class FrigateApp:
                 print("*************************************************************")
                 print("***    Config Validation Errors                           ***")
                 print("*************************************************************")
+                if isinstance(e, ValidationError):
+                    for error in e.errors():
+                        location = ".".join(error["loc"])
+                        print(f"{location}: {error['msg']}")
+                else:
                     print(e)
                     print(traceback.format_exc())
                 print("*************************************************************")

frigate/config.py

@@ -555,6 +555,7 @@ class ZoneConfig(BaseModel):
         # old native resolution coordinates
         if isinstance(coordinates, list):
             explicit = any(p.split(",")[0] > "1.0" for p in coordinates)
+            try:
                 self._contour = np.array(
                     [
                         (
@@ -568,6 +569,10 @@ class ZoneConfig(BaseModel):
                         for p in coordinates
                     ]
                 )
+            except ValueError:
+                raise ValueError(
+                    f"Invalid coordinates found in configuration file. Coordinates must be relative (between 0-1): {coordinates}"
+                )
 
             if explicit:
                 self.coordinates = ",".join(
@@ -579,6 +584,7 @@ class ZoneConfig(BaseModel):
         elif isinstance(coordinates, str):
             points = coordinates.split(",")
             explicit = any(p > "1.0" for p in points)
+            try:
                 self._contour = np.array(
                     [
                         (
@@ -592,11 +598,15 @@ class ZoneConfig(BaseModel):
                         for i in range(0, len(points), 2)
                     ]
                 )
+            except ValueError:
+                raise ValueError(
+                    f"Invalid coordinates found in configuration file. Coordinates must be relative (between 0-1): {coordinates}"
+                )
 
             if explicit:
                 self.coordinates = ",".join(
                     [
-                        f"{round(int(points[i]) / frame_shape[1], 3)},{round(int(points[i + 1]) / frame_shape[0], 3)}"
+                        f"{int(points[i]) / frame_shape[1]},{int(points[i + 1]) / frame_shape[0]}"
                         for i in range(0, len(points), 2)
                     ]
                 )