feat: added pre-commit checks

.github/workflows/test.yml

@@ -65,6 +65,7 @@ jobs:
       - name: Install uv
         uses: astral-sh/setup-uv@v7
 
+      # Keep in sync ruff version with .pre-commit-config.yaml
       - name: Run Ruff Linter
         run: |
           uvx ruff@0.14.5 check .
@@ -90,6 +91,7 @@ jobs:
           uv build
           uv pip install dist/*.whl
 
+      # Keep in sync mypy version with .pre-commit-config.yaml
       - name: Run Mypy Type Checker
         run: | 
           uvx mypy@1.18.2

.pre-commit-config.yaml

@@ -0,0 +1,32 @@
+repos:
+  # Ruff for linting and formatting
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    rev: v0.14.5 # Keep in sync with GitHub Actions workflow
+    hooks:
+      # Run the linter
+      - id: ruff
+        args: [--fix]
+      # Run the formatter
+      - id: ruff-format
+
+  # mypy for type checking
+  - repo: https://github.com/pre-commit/mirrors-mypy
+    rev: v1.18.2 # Keep in sync with GitHub Actions workflow
+    hooks:
+      - id: mypy
+        args: [--config-file=pyproject.toml]
+        files: ^(language_tool_python|tests)/
+
+  # Standard pre-commit hooks
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v6.0.0
+    hooks:
+      - id: trailing-whitespace
+      - id: end-of-file-fixer
+      - id: check-yaml
+      - id: check-added-large-files
+        args: [--maxkb=1000]
+      - id: check-json
+      - id: check-toml
+      - id: mixed-line-ending
+        args: [--fix=lf]

MANIFEST.in

@@ -5,6 +5,7 @@ recursive-include language_tool_python *.py *.toml
 include language_tool_python/py.typed
 
 prune .github/
+prune .mypy_cache/
 prune .pytest-cache/
 prune .ruff_cache/
 prune env/
@@ -16,12 +17,17 @@ prune ENV/
 prune env.bak/
 prune venv.bak/
 prune docs/
+prune htmlcov/
 prune tests/
 
+exclude .coverage
 exclude .gitignore
+exclude .pre-commit-config.yaml
 exclude .readthedocs.yaml
+exclude CHANGELOG.md
 exclude CONTRIBUTING.md
 exclude coverage-badge.svg
+exclude coverage.xml
 exclude make.bat
 exclude Makefile
 exclude pytest.ini