Fix Ruff lint violations

hatch_cpp/config.py

@@ -2,7 +2,6 @@
 
 from os import environ, system as system_call
 from pathlib import Path
-from typing import List, Optional
 
 from pkn import getSimpleLogger
 from pydantic import BaseModel, Field, model_validator
@@ -21,13 +20,13 @@
 class HatchCppBuildConfig(BaseModel):
     """Build config values for Hatch C++ Builder."""
 
-    verbose: Optional[bool] = Field(default=False)
-    skip: Optional[bool] = Field(default=False)
-    name: Optional[str] = Field(default=None)
-    libraries: List[HatchCppLibrary] = Field(default_factory=list)
-    cmake: Optional[HatchCppCmakeConfiguration] = Field(default=None)
-    platform: Optional[HatchCppPlatform] = Field(default_factory=HatchCppPlatform.default)
-    vcpkg: Optional[HatchCppVcpkgConfiguration] = Field(default_factory=HatchCppVcpkgConfiguration)
+    verbose: bool | None = Field(default=False)
+    skip: bool | None = Field(default=False)
+    name: str | None = Field(default=None)
+    libraries: list[HatchCppLibrary] = Field(default_factory=list)
+    cmake: HatchCppCmakeConfiguration | None = Field(default=None)
+    platform: HatchCppPlatform | None = Field(default_factory=HatchCppPlatform.default)
+    vcpkg: HatchCppVcpkgConfiguration | None = Field(default_factory=HatchCppVcpkgConfiguration)
 
     @model_validator(mode="wrap")
     @classmethod
@@ -56,9 +55,9 @@ def validate_model(cls, data, handler):
 
 class HatchCppBuildPlan(HatchCppBuildConfig):
     build_type: BuildType = "release"
-    commands: List[str] = Field(default_factory=list)
+    commands: list[str] = Field(default_factory=list)
 
-    _active_toolchains: List[Toolchain] = []
+    _active_toolchains: list[Toolchain] = []
 
     def generate(self):
         self.commands = []

hatch_cpp/hooks.py

@@ -1,10 +1,8 @@
-from typing import Type
-
 from hatchling.plugin import hookimpl
 
 from .plugin import HatchCppBuildHook
 
 
 @hookimpl
-def hatch_register_build_hook() -> Type[HatchCppBuildHook]:
+def hatch_register_build_hook() -> type[HatchCppBuildHook]:
     return HatchCppBuildHook

hatch_cpp/plugin.py

@@ -82,7 +82,7 @@ def initialize(self, version: str, build_data: dict[str, Any]) -> None:
                 os_name = "linux"
             else:
                 os_name = "win"
-            if all([lib.py_limited_api for lib in build_plan.libraries]):
+            if all(lib.py_limited_api for lib in build_plan.libraries):
                 build_data["tag"] = f"cp{version_major}{version_minor}-abi3-{os_name}_{machine}"
             else:
                 build_data["tag"] = f"cp{version_major}{version_minor}-cp{version_major}{version_minor}-{os_name}_{machine}"

hatch_cpp/tests/test_projects.py

@@ -14,7 +14,6 @@ class TestProject:
         [
             "test_project_basic",
             "test_project_override_classes",
-            "test_project_override_classes",
             "test_project_override_toolchain",
             "test_project_pybind",
             "test_project_pybind_vcpkg",

hatch_cpp/toolchains/cmake.py

@@ -3,7 +3,7 @@
 from os import environ
 from pathlib import Path
 from sys import version_info
-from typing import Any, Dict, Optional, Union
+from typing import Any
 
 from pydantic import BaseModel, Field
 
@@ -23,17 +23,17 @@
 
 
 class HatchCppCmakeConfiguration(BaseModel):
-    root: Optional[Path] = None
+    root: Path | None = None
     build: Path = Field(default_factory=lambda: Path("build"))
-    install: Optional[Path] = Field(default=None)
+    install: Path | None = Field(default=None)
 
-    cmake_arg_prefix: Optional[str] = Field(default=None)
-    cmake_args: Dict[str, str] = Field(default_factory=dict)
-    cmake_env_args: Dict[Platform, Dict[str, str]] = Field(default_factory=dict)
+    cmake_arg_prefix: str | None = Field(default=None)
+    cmake_args: dict[str, str] = Field(default_factory=dict)
+    cmake_env_args: dict[Platform, dict[str, str]] = Field(default_factory=dict)
 
-    include_flags: Optional[Dict[str, Union[str, int, float, bool]]] = Field(default=None)
+    include_flags: dict[str, str | int | float | bool] | None = Field(default=None)
 
-    def generate(self, config) -> Dict[str, Any]:
+    def generate(self, config) -> dict[str, Any]:
         commands = []
 
         # Derive prefix

hatch_cpp/toolchains/vcpkg.py

@@ -5,7 +5,7 @@
 from pathlib import Path
 from platform import machine as platform_machine
 from sys import platform as sys_platform
-from typing import Literal, Optional
+from typing import Literal
 
 from pydantic import BaseModel, Field
 
@@ -40,7 +40,7 @@
 }
 
 
-def _read_vcpkg_ref_from_gitmodules(vcpkg_root: Path) -> Optional[str]:
+def _read_vcpkg_ref_from_gitmodules(vcpkg_root: Path) -> str | None:
     """Read the branch/ref for vcpkg from .gitmodules if it exists.
 
     Looks for a submodule whose path matches ``vcpkg_root`` and returns
@@ -61,19 +61,19 @@ def _read_vcpkg_ref_from_gitmodules(vcpkg_root: Path) -> Optional[str]:
 
 
 class HatchCppVcpkgConfiguration(BaseModel):
-    vcpkg: Optional[str] = Field(default="vcpkg.json")
-    vcpkg_root: Optional[Path] = Field(default=Path("vcpkg"))
-    vcpkg_repo: Optional[str] = Field(default="https://github.com/microsoft/vcpkg.git")
-    vcpkg_triplet: Optional[VcpkgTriplet] = Field(default=None)
-    vcpkg_ref: Optional[str] = Field(
+    vcpkg: str | None = Field(default="vcpkg.json")
+    vcpkg_root: Path | None = Field(default=Path("vcpkg"))
+    vcpkg_repo: str | None = Field(default="https://github.com/microsoft/vcpkg.git")
+    vcpkg_triplet: VcpkgTriplet | None = Field(default=None)
+    vcpkg_ref: str | None = Field(
         default=None,
         description="Branch, tag, or commit SHA to checkout after cloning vcpkg. "
         "If not set, falls back to the branch specified in .gitmodules for the vcpkg submodule.",
     )
 
     # TODO: overlay
 
-    def _resolve_vcpkg_ref(self) -> Optional[str]:
+    def _resolve_vcpkg_ref(self) -> str | None:
         """Return the ref to checkout: explicit config takes priority, then .gitmodules."""
         if self.vcpkg_ref is not None:
             return self.vcpkg_ref

hatch_cpp/utils.py

@@ -1,12 +1,12 @@
 from __future__ import annotations
 
-from functools import lru_cache
+from functools import cache
 
 from pydantic import ImportString, TypeAdapter
 
 _import_string_adapter = TypeAdapter(ImportString)
 
 
-@lru_cache(maxsize=None)
+@cache
 def import_string(input_string: str):
     return _import_string_adapter.validate_python(input_string)