PYTHON ?= $(shell command -v python3 python|head -n1)

.PHONY: default
default: help

define PRINT_HELP_PYSCRIPT
import re, sys
print("Usage: make <target>")
cmds = {}
for line in sys.stdin:
	match = re.match(r'^([a-zA-Z_-]+):.*?## (.*)$$', line)
	if match:
		target, help = match.groups()
		cmds.update({target: help})
for cmd in sorted(cmds):
		print(" * '%s' - %s" % (cmd, cmds[cmd]))
endef
export PRINT_HELP_PYSCRIPT

.PHONY: help
help:
	@$(PYTHON) -c "$$PRINT_HELP_PYSCRIPT" < $(MAKEFILE_LIST)