Drop black in favor of ruff

Makefile

@@ -1,22 +1,21 @@
 .DEFAULT_GOAL := all
-black = black granian tests
-ruff = ruff granian tests
+pysources = granian tests
 
 .PHONY: build-dev
 build-dev:
 	@rm -f granian/*.so
-	maturin develop --extras test
+	maturin develop --extras lint,test
 
 .PHONY: format
 format:
-	$(black)
-	$(ruff) --fix --exit-zero
+	ruff --fix $(pysources)
+	ruff format $(pysources)
 	cargo fmt
 
 .PHONY: lint-python
 lint-python:
-	$(ruff)
-	$(black) --check --diff
+	ruff $(pysources)
+	ruff format --check $(pysources)
 
 .PHONY: lint-rust
 lint-rust:

granian/_internal.py

@@ -41,7 +41,7 @@ def load_module(module_name: str, raise_on_failure: bool = True) -> Optional[Mod
     except ImportError:
         if sys.exc_info()[-1].tb_next:
             raise RuntimeError(
-                f"While importing '{module_name}', an ImportError was raised:" f"\n\n{traceback.format_exc()}"
+                f"While importing '{module_name}', an ImportError was raised:" f'\n\n{traceback.format_exc()}'
             )
         elif raise_on_failure:
             raise RuntimeError(f"Could not import '{module_name}'.")

granian/server.py

@@ -436,9 +436,9 @@ def serve(
             if sys.platform == 'win32' and self.workers > 1:
                 self.workers = 1
                 logger.warn(
-                    "Due to a bug in Windows unblocking socket implementation "
+                    'Due to a bug in Windows unblocking socket implementation '
                     "granian can't support multiple workers on this platform. "
-                    "Number of workers will now fallback to 1."
+                    'Number of workers will now fallback to 1.'
                 )
 
         if self.websockets:

pyproject.toml

@@ -40,8 +40,7 @@ dependencies = [
 
 [project.optional-dependencies]
 lint = [
-    'black~=23.9.0',
-    'ruff~=0.0.292',
+    'ruff~=0.1.0',
 ]
 test = [
     'httpx~=0.25.0',
@@ -92,6 +91,9 @@ extend-ignore = [
 flake8-quotes = { inline-quotes = 'single', multiline-quotes = 'double' }
 mccabe = { max-complexity = 13 }
 
+[tool.ruff.format]
+quote-style = 'single'
+
 [tool.ruff.isort]
 combine-as-imports = true
 lines-after-imports = 2
@@ -101,12 +103,5 @@ known-first-party = ['granian', 'tests']
 'granian/_granian.pyi' = ['I001']
 'tests/**' = ['B018', 'S110', 'S501']
 
-[tool.black]
-color = true
-line-length = 120
-target-version = ['py38', 'py39', 'py310', 'py311', 'py312']
-skip-string-normalization = true # leave this to ruff
-skip-magic-trailing-comma = true # leave this to ruff
-
 [tool.pytest.ini_options]
 asyncio_mode = 'auto'