Cleanup json schema validation

src/poetry/json/__init__.py

@@ -2,21 +2,18 @@
 
 import json
 
-from pathlib import Path
+from importlib.resources import files
 from typing import Any
 
 import fastjsonschema
 
 from fastjsonschema.exceptions import JsonSchemaValueException
-from poetry.core.json import SCHEMA_DIR as CORE_SCHEMA_DIR
-
-
-SCHEMA_DIR = Path(__file__).parent / "schemas"
 
 
 def validate_object(obj: dict[str, Any]) -> list[str]:
-    schema_file = Path(SCHEMA_DIR, "poetry.json")
-    schema = json.loads(schema_file.read_text(encoding="utf-8"))
+    schema = json.loads(
+        (files(__package__) / "schemas" / "poetry.json").read_text(encoding="utf-8")
+    )
 
     validate = fastjsonschema.compile(schema)
 
@@ -27,7 +24,9 @@ def validate_object(obj: dict[str, Any]) -> list[str]:
         errors = [e.message]
 
     core_schema = json.loads(
-        (CORE_SCHEMA_DIR / "poetry-schema.json").read_text(encoding="utf-8")
+        (files("poetry.core") / "json" / "schemas" / "poetry-schema.json").read_text(
+            encoding="utf-8"
+        )
     )
 
     properties = schema["properties"].keys() | core_schema["properties"].keys()

tests/json/test_schema.py

@@ -2,16 +2,15 @@
 
 import json
 
+from importlib.resources import files
 from pathlib import Path
 from typing import Any
 
-from poetry.core.json import SCHEMA_DIR as CORE_SCHEMA_DIR
-
 from poetry.factory import Factory
-from poetry.json import SCHEMA_DIR
 from poetry.toml import TOMLFile
 
 
+SCHEMA_FILE = files("poetry.json") / "schemas" / "poetry.json"
 FIXTURE_DIR = Path(__file__).parent / "fixtures"
 SOURCE_FIXTURE_DIR = FIXTURE_DIR / "source"
 
@@ -59,12 +58,14 @@ def test_self_invalid_plugin() -> None:
 
 
 def test_dependencies_is_consistent_to_poetry_core_schema() -> None:
-    with (SCHEMA_DIR / "poetry.json").open(encoding="utf-8") as f:
+    with SCHEMA_FILE.open(encoding="utf-8") as f:
         schema = json.load(f)
     dependency_definitions = {
         key: value for key, value in schema["definitions"].items() if "depend" in key
     }
-    with (CORE_SCHEMA_DIR / "poetry-schema.json").open(encoding="utf-8") as f:
+    with (files("poetry.core") / "json" / "schemas" / "poetry-schema.json").open(
+        encoding="utf-8"
+    ) as f:
         core_schema = json.load(f)
     core_dependency_definitions = {
         key: value