From 1762f3524ac13988e1040462736353185d8e4435 Mon Sep 17 00:00:00 2001
From: Thomas A <arthofer.thomas@gmail.com>
Date: Sat, 24 May 2025 20:31:55 +0200
Subject: [PATCH] Check for existence of model.path & model.labelmap_path on
 config save.

---
 frigate/config/config.py             | 4 ++++
 frigate/detectors/detector_config.py | 6 ++++++
 2 files changed, 10 insertions(+)

diff --git a/frigate/config/config.py b/frigate/config/config.py
index 6ec048acd..4b6eb68aa 100644
--- a/frigate/config/config.py
+++ b/frigate/config/config.py
@@ -511,6 +511,10 @@ class FrigateConfig(FrigateBaseModel):
                 elif detector_config.type == "edgetpu":
                     model_config["path"] = "/edgetpu_model.tflite"
 
+            # Verify that the model path points to an existing file.
+            if not os.path.exists(model_config["path"]):
+                raise ValueError(f"Model path '{model_config['path']}' does not exist.")
+
             model = ModelConfig.model_validate(model_config)
             model.check_and_load_plus_model(self.plus_api, detector_config.type)
             model.compute_model_hash()
diff --git a/frigate/detectors/detector_config.py b/frigate/detectors/detector_config.py
index 3893908d2..103b973c2 100644
--- a/frigate/detectors/detector_config.py
+++ b/frigate/detectors/detector_config.py
@@ -103,6 +103,12 @@ class ModelConfig(BaseModel):
     def __init__(self, **config):
         super().__init__(**config)
 
+        # Verify that the labelmap path points to an existing file.
+        if not os.path.exists(config.get("labelmap_path", "/labelmap.txt")):
+            raise ValueError(
+                f"Model labelmap_path '{config.get('labelmap_path', '/labelmap.txt')}' does not exist."
+            )
+
         self._merged_labelmap = {
             **load_labels(config.get("labelmap_path", "/labelmap.txt")),
             **config.get("labelmap", {}),