chore: add local Makefile mirroring CI job steps

ci-lint/ci-rust/ci-test/ci-quality match the corresponding ci.yml jobs
so `make ci` reproduces the pipeline locally.

Author: nikolay-e

Makefile

@@ -0,0 +1,37 @@
+PYTHON ?= python3
+
+.PHONY: ci ci-lint ci-rust ci-test ci-quality
+
+ci: ci-lint ci-rust ci-test ci-quality
+
+ci-lint:
+	$(PYTHON) -m pip install --upgrade pip
+	pip install pre-commit
+	pip install -e ".[dev]"
+	pre-commit run --all-files
+	ruff check src tests
+	black --check src tests
+	mypy src
+
+ci-rust:
+	cd diffctx && DIFFCTX_YAML_CASES_LIMIT="20" cargo test --lib
+	cd diffctx && cargo build --release
+	cd diffctx && DIFFCTX_YAML_CASES_LIMIT="20" cargo test --release --test yaml_cases
+	cd diffctx && ./target/release/diffctx-test || true
+
+ci-test:
+	$(PYTHON) -m pip install --upgrade pip
+	pip install "maturin>=1.10,<1.11"
+	PYO3_USE_ABI3_FORWARD_COMPATIBILITY="1" pip install -e ".[dev,full,mcp]" --no-build-isolation
+	pytest -v --cov=src/diffctx --cov-report=xml \
+		--cov-report=term-missing --cov-branch --junitxml=test-results.xml
+	coverage report --fail-under=40
+
+ci-quality:
+	$(PYTHON) -m pip install --upgrade pip
+	pip install -e ".[dev]"
+	radon cc src/diffctx/ --min B --show-complexity --total-average
+	radon mi src/diffctx/ --min B --show
+	radon cc src/diffctx/ --min C --total-average || \
+		(echo "High complexity detected" && exit 1)
+	lint-imports