.PHONY: test clean build release help
.DEFAULT_GOAL := help

define BROWSER_PYSCRIPT
import os, webbrowser, sys

try:
	from urllib import pathname2url
except:
	from urllib.request import pathname2url

webbrowser.open("file://" + pathname2url(os.path.abspath(sys.argv[1])))
endef
export BROWSER_PYSCRIPT

define PRINT_HELP_PYSCRIPT
import re, sys

for line in sys.stdin:
	match = re.match(r'^([a-zA-Z_-]+):.*?## (.*)$$', line)
	if match:
		target, help = match.groups()
		print("%-20s %s" % (target, help))
endef
export PRINT_HELP_PYSCRIPT

BROWSER := python3 -c "$$BROWSER_PYSCRIPT"

help:
	@python3 -c "$$PRINT_HELP_PYSCRIPT" < $(MAKEFILE_LIST)

test: ## run unit tests
	tox

clean: ## remove all generated artifacts
	find . -name '*.pyc' -exec rm -f {} +
	find . -name '*.pyo' -exec rm -f {} +
	find . -name '*~' -exec rm -f {} +
	find . -name '__pycache__' -exec rm -fr {} +
	rm -fr .tox/
	rm -f .coverage
	rm -fr cover/
	rm -fr .pytest_cache
	rm -fr build/
	rm -fr dist/
	rm -fr .eggs/
	find . -name '*.egg-info' -exec rm -fr {} +
	find . -name '*.egg' -exec rm -f {} +

dist: clean # test clean ## builds source and wheel package
	python3 setup.py sdist
	python3 setup.py bdist_wheel
	ls -l dist

release: dist ## package and upload a release
	twine upload dist/*
