refactor(api): Add an enableErrorRecoveryExperiments feature flag (#…

…14639)

api/src/opentrons/config/advanced_settings.py

@@ -219,6 +219,20 @@ class Setting(NamedTuple):
         description="When this setting is on, Flex will continue its activities regardless of pressure changes inside the pipette. Do not turn this setting on unless you are intentionally causing pressures over 8 kPa inside the pipette air channel.",
         robot_type=[RobotTypeEnum.FLEX],
     ),
+    SettingDefinition(
+        _id="enableErrorRecoveryExperiments",
+        title="Enable error recovery experiments",
+        description=(
+            "Do not enable."
+            " This is an Opentrons internal setting to experiment with"
+            " in-development error recovery features."
+            " This will interfere with your protocol runs,"
+            " corrupt your robot's storage,"
+            " bring misfortune and pestilence upon you and your livestock, etc."
+        ),
+        robot_type=[RobotTypeEnum.FLEX],
+        internal_only=True,
+    ),
 ]
 
 if (
@@ -668,6 +682,16 @@ def _migrate29to30(previous: SettingsMap) -> SettingsMap:
     return {k: v for k, v in previous.items() if "disableTipPresenceDetection" != k}
 
 
+def _migrate30to31(previous: SettingsMap) -> SettingsMap:
+    """Migrate to version 31 of the feature flags file.
+
+    - Adds the enableErrorRecoveryExperiments config element.
+    """
+    newmap = {k: v for k, v in previous.items()}
+    newmap["enableErrorRecoveryExperiments"] = None
+    return newmap
+
+
 _MIGRATIONS = [
     _migrate0to1,
     _migrate1to2,
@@ -699,6 +723,7 @@ def _migrate29to30(previous: SettingsMap) -> SettingsMap:
     _migrate27to28,
     _migrate28to29,
     _migrate29to30,
+    _migrate30to31,
 ]
 """
 List of all migrations to apply, indexed by (version - 1). See _migrate below

api/src/opentrons/config/feature_flags.py

@@ -70,3 +70,9 @@ def require_estop() -> bool:
     return not advs.get_setting_with_env_overload(
         "estopNotRequired", RobotTypeEnum.FLEX
     )
+
+
+def enable_error_recovery_experiments() -> bool:
+    return advs.get_setting_with_env_overload(
+        "enableErrorRecoveryExperiments", RobotTypeEnum.FLEX
+    )

api/tests/opentrons/config/test_advanced_settings_migration.py

@@ -8,7 +8,7 @@
 
 @pytest.fixture
 def migrated_file_version() -> int:
-    return 30
+    return 31
 
 
 # make sure to set a boolean value in default_file_settings only if
@@ -29,6 +29,7 @@ def default_file_settings() -> Dict[str, Any]:
         "disableStatusBar": None,
         "disableOverpressureDetection": None,
         "estopNotRequired": None,
+        "enableErrorRecoveryExperiments": None,
     }
 
 
@@ -366,6 +367,18 @@ def v30_config(v29_config: Dict[str, Any]) -> Dict[str, Any]:
     return r
 
 
+@pytest.fixture
+def v31_config(v30_config: Dict[str, Any]) -> Dict[str, Any]:
+    r = v30_config.copy()
+    r.update(
+        {
+            "_version": 31,
+            "enableErrorRecoveryExperiments": None,
+        }
+    )
+    return r
+
+
 @pytest.fixture(
     scope="session",
     params=[
@@ -401,6 +414,7 @@ def v30_config(v29_config: Dict[str, Any]) -> Dict[str, Any]:
         lazy_fixture("v28_config"),
         lazy_fixture("v29_config"),
         lazy_fixture("v30_config"),
+        lazy_fixture("v31_config"),
     ],
 )
 def old_settings(request: SubRequest) -> Dict[str, Any]:
@@ -492,4 +506,5 @@ def test_ensures_config() -> None:
         "disableStatusBar": None,
         "estopNotRequired": None,
         "disableOverpressureDetection": None,
+        "enableErrorRecoveryExperiments": None,
     }