move from black --check to ruff format --check

.github/workflows/test.yml

@@ -18,7 +18,7 @@ jobs:
         sudo apt-get install emacs
         emacs --version
         python -m pip install --upgrade pip
-        pip install . mypy pytest black
+        pip install . mypy pytest ruff
     - name: Test
       run: make test-melpazoid
 

Makefile

@@ -25,4 +25,4 @@ image:
 test-melpazoid:
 	mypy --strict --non-interactive --install-types melpazoid
 	pytest --doctest-modules --durations=5
-	black -S --check .
+	ruff format --check .

pyproject.toml

@@ -0,0 +1,7 @@
+[project]
+name = "melpazoid"
+version = "0.0"
+requires-python = ">=3.10"
+
+[tool.ruff.format]
+quote-style = "preserve"