add a Makefile for common tasks

Author: aahnik

Makefile

@@ -0,0 +1,28 @@
+# lists all available targets
+list:
+	@sh -c "$(MAKE) -p no_targets__ | \
+		awk -F':' '/^[a-zA-Z0-9][^\$$#\/\\t=]*:([^=]|$$)/ {\
+			split(\$$1,A,/ /);for(i in A)print A[i]\
+		}' | grep -v '__\$$' | grep -v 'make\[1\]' | grep -v 'Makefile' | sort"
+
+# required for list
+no_targets__:
+
+
+clean:
+	@rm -rf build dist .eggs *.egg-info
+	@rm -rf .benchmarks .coverage coverage.xml htmlcov report.xml .tox
+	@find . -type d -name '.mypy_cache' -exec rm -rf {} +
+	@find . -type d -name '__pycache__' -exec rm -rf {} +
+	@find . -type d -name '*pytest_cache*' -exec rm -rf {} +
+	@find . -type f -name "*.py[co]" -exec rm -rf {} +
+
+fmt: clean
+	@poetry run isort .
+	@poetry run black .
+
+hard-clean: clean
+	@rm -rf .venv
+
+pypi:
+	@poetry build && poetry publish