add ruff and black pre-commit hook

.pre-commit-config.yaml

@@ -0,0 +1,11 @@
+repos:
+-   repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v3.2.0
+    hooks:
+    -   id: check-yaml
+    -   id: end-of-file-fixer
+    -   id: trailing-whitespace
+-   repo: https://github.com/psf/black
+    rev: 22.12.0
+    hooks:
+    -   id: black

python/pyproject.toml

@@ -37,7 +37,13 @@ repository = "https://github.com/eto-ai/lancedb"
 
 [project.optional-dependencies]
 tests = [
-    "pytest",
+    "pytest"
+]
+dev = [
+    "ruff", "pre-commit", "black"
+]
+docs = [
+    "mkdocs", "mkdocs-material", "mkdocstrings[python]"
 ]
 
 [build-system]