module: add Makefile for development commands

.travis.yml

@@ -13,5 +13,5 @@ install:
 - poetry install
 
 script:
-- poetry run pylint veml6070
-- poetry run pytest
+- make lint
+- make test

Makefile

@@ -0,0 +1,24 @@
+
+# https://tech.davis-hansson.com/p/make/
+SHELL := bash
+.ONESHELL:
+.SHELLFLAGS := -eu -o pipefail -c
+.DELETE_ON_ERROR:
+.DEFAULT_GOAL := all
+MAKEFLAGS += --warn-undefined-variables
+MAKEFLAGS += --no-builtin-rules
+
+.PHONY: all
+all: lint test ## Run lint and test (default goal)
+
+.PHONY: lint
+lint: ## Lint all source code
+	poetry run pylint veml6070
+
+.PHONY: test
+test: ## Run all tests
+	poetry run pytest
+
+.PHONY: help
+help: ## Print this help text
+	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-15s\033[0m %s\n", $$1, $$2}'

README.md

@@ -21,6 +21,10 @@ In September 2019 it was discovered (and fixed) that:
 - previously the sensor was never shutdown between measurements which wastes power but still takes measurements successfully
 - the UVA light intensity was calculated wrongly (too high) for `rset != RSET_240K` due to wrong compensation: higher `rset` leads to higher sampling time leads to higher absolute ADC step counts which *should* lead to every ADC step indicating a smaller amount of `W/(m*m)` of UVA power and a higher precision of the final UVA power but it wrongly behaved the opposite way. The `integration_time` worked correctly all the time.
 
+## Develop
+
+Run `make help` to find out about the available development commands.
+
 ## License
 
 Python files in this repository are released under the [MIT license](LICENSE).