Add schema validation like in odr: Apply default values (#50)

open_samus_returns_rando/samus_returns_patcher.py

@@ -14,6 +14,7 @@
 from open_samus_returns_rando.patcher_editor import PatcherEditor, path_for_level
 from open_samus_returns_rando import lua_util
 from open_samus_returns_rando.model_data import get_data
+from open_samus_returns_rando.validator_with_default import DefaultValidatingDraft7Validator
 
 
 T = typing.TypeVar("T")
@@ -140,16 +141,18 @@ def patch_pickups(editor: PatcherEditor, pickups_config: list[dict]):
                          _read_powerup_lua(),
                          in_pkgs=pkgs_for_lua)
 
+
 def patch_exefs(exefs_patches: Path, configuration: dict):
     exefs_patches.mkdir(parents=True, exist_ok=True)
     patch = DSPatch()
     # file needs to be named code.ips for Citra
     exefs_patches.joinpath("code.ips").write_bytes(bytes(patch))
 
+
 def patch(input_path: Path, output_path: Path, configuration: dict):
     LOG.info("Will patch files from %s", input_path)
 
-    jsonschema.validate(instance=configuration, schema=_read_schema())
+    DefaultValidatingDraft7Validator(_read_schema()).validate(configuration)
 
     out_romfs = output_path.joinpath("romfs")
     out_exefs= output_path.joinpath("exefs")

open_samus_returns_rando/validator_with_default.py

@@ -0,0 +1,21 @@
+from jsonschema import Draft7Validator, validators
+
+
+def extend_with_default(validator_class):
+    validate_properties = validator_class.VALIDATORS["properties"]
+
+    def set_defaults(validator, properties, instance, schema):
+        for property, subschema in properties.items():
+            if "default" in subschema:
+                instance.setdefault(property, subschema["default"])
+
+        yield from validate_properties(
+                validator, properties, instance, schema,
+        )
+
+    return validators.extend(
+        validator_class, {"properties": set_defaults},
+    )
+
+
+DefaultValidatingDraft7Validator = extend_with_default(Draft7Validator)