move env helpers out of the config package (#24648)

go2rtc's create_config.py imported frigate.config.env, which ran the frigate.config package init and loaded every detector plugin. Since the onnxruntime 1.30 bump, importing onnxruntime takes about 5s on some hosts, so go2rtc started after Frigate's cameras and every ffmpeg process failed to connect to the restream until it came up. The env helpers now live in frigate.util.env, so go2rtc's config script no longer imports onnxruntime.

frigate/test/test_env.py

@@ -7,8 +7,9 @@ from unittest.mock import MagicMock, patch
 
 from pydantic import ValidationError
 
-from frigate.config import FrigateConfig, env
-from frigate.config.env import (
+from frigate.config import FrigateConfig
+from frigate.util import env
+from frigate.util.env import (
     FRIGATE_ENV_VARS,
     validate_env_string,
     validate_env_vars,
@@ -301,14 +302,14 @@ class TestVariableSources(unittest.TestCase):
     def test_collision_warns_once_naming_the_winner(self):
         """A key from two sources logs one warning naming the source that won."""
         with patch.dict(env._CONTAINER_ENV, {"FRIGATE_MQTT_HOST": "from_env"}):
-            with self.assertLogs("frigate.config.env", level="WARNING") as logs:
+            with self.assertLogs("frigate.util.env", level="WARNING") as logs:
                 env.apply_config_env_vars({"FRIGATE_MQTT_HOST": "from_config"})
             self.assertEqual(len(logs.output), 1)
             self.assertIn("FRIGATE_MQTT_HOST", logs.output[0])
             self.assertIn("using the value from container environment", logs.output[0])
             self.assertNotIn("environment_vars", logs.output[0])
 
-            with self.assertNoLogs("frigate.config.env", level="WARNING"):
+            with self.assertNoLogs("frigate.util.env", level="WARNING"):
                 env._rebuild()
 
 
@@ -360,7 +361,7 @@ class TestSecretsFile(unittest.TestCase):
     def test_unprefixed_key_is_ignored_with_a_warning(self):
         """Names must start with FRIGATE_, matching the credentials directory."""
         self._write("cam_pass: hunter2\nFRIGATE_CAM_PASS: hunter2\n")
-        with self.assertLogs("frigate.config.env", level="WARNING") as logs:
+        with self.assertLogs("frigate.util.env", level="WARNING") as logs:
             values = env._load_secrets_file()
         self.assertEqual(values, {"FRIGATE_CAM_PASS": "hunter2"})
         self.assertIn("cam_pass", logs.output[0])
@@ -483,10 +484,10 @@ class TestSourceRobustness(unittest.TestCase):
         env.reload_sources()
         env._CONFIG_ENV_VARS["FRIGATE_DUPE"] = "from_config"
 
-        with self.assertNoLogs("frigate.config.env", level="WARNING"):
+        with self.assertNoLogs("frigate.util.env", level="WARNING"):
             env._rebuild(warn=False)
 
-        with self.assertLogs("frigate.config.env", level="WARNING") as logs:
+        with self.assertLogs("frigate.util.env", level="WARNING") as logs:
             env._rebuild()
         self.assertIn("FRIGATE_DUPE", logs.output[0])
 
@@ -496,7 +497,7 @@ class TestSourceRobustness(unittest.TestCase):
         env.reload_sources()
 
         self._write_secrets("FRIGATE_CAMS:\n  alley: hunter2\n")
-        with self.assertLogs("frigate.config.env", level="ERROR") as logs:
+        with self.assertLogs("frigate.util.env", level="ERROR") as logs:
             env.reload_sources()
 
         self.assertIn("FRIGATE_CAMS", logs.output[0])
@@ -505,7 +506,7 @@ class TestSourceRobustness(unittest.TestCase):
     def test_duplicate_key_error_does_not_log_the_values(self):
         """ruamel's duplicate key message quotes both values; the log must not."""
         self._write_secrets("FRIGATE_CAM_PASS: hunter2\nFRIGATE_CAM_PASS: hunter3\n")
-        with self.assertLogs("frigate.config.env", level="ERROR") as logs:
+        with self.assertLogs("frigate.util.env", level="ERROR") as logs:
             env.reload_sources()
 
         self.assertNotIn("hunter2", logs.output[0])
@@ -535,7 +536,7 @@ class TestSourceRobustness(unittest.TestCase):
         with open(os.path.join(self._creds.name, "FRIGATE_CRED"), "w") as f:
             f.write("from_creds\n")
 
-        with self.assertLogs("frigate.config.env", level="WARNING") as logs:
+        with self.assertLogs("frigate.util.env", level="WARNING") as logs:
             env.reload_sources()
 
         self.assertIn("FRIGATE_NOT_A_FILE", logs.output[0])