add pre-commit and enforce on travis (#37)

* add pre-commit and enforce on travis

Makefile

@@ -1,10 +1,35 @@
 
-build: 
+SRC:=rfd
+
+.PHONY: build
+build:
 	rm -rf dist/
 	python setup.py sdist
 
+.PHONY: push_test
 push_test:
 	twine upload -r testpypi dist/*.tar.gz
 
+.PHONY: push_prod
 push_prod:
-	twine upload dist/*.tar.gz
+	twine upload dist/*.tar.gz
+
+.PHONY: precommit
+precommit: ## Run pre-commit
+	pre-commit run \
+	--all-files \
+	--show-diff-on-failure
+
+.PHONY: lint
+lint:
+	pylint $(SRC)
+
+.PHONY: test
+test:
+	pytest -v
+
+.PHONY: pr
+pr: precommit lint test
+
+.PHONY: ci
+ci: lint test