LUA      ?= lua5.1
LUAROCKS ?= luarocks

ifneq ($(LUA),lua)
	LUA_VERSION = $(shell echo $(LUA) | sed -e "s/lua\(.*\)/\1/")
	LUAROCKS = luarocks-$(LUA_VERSION)
	LUA_PATH_MAKE = $(shell echo "$$LUA_PATH" | sed -e "s/[0-9]\.[0-9]/$(LUA_VERSION)/g")
	LUA_CPATH_MAKE = $(shell echo "$$LUA_CPATH" | sed -e "s/[0-9]\.[0-9]/$(LUA_VERSION)/g")
endif

ifeq ($(LUA),luajit)
	LUAROCKS = luarocks-5.1
endif

.PHONY: test local compile compile_system watch lint count show

test:
	busted

show:
	# LUA $(LUA)
	# LUA_VERSION $(LUA_VERSION)
	# LUAROCKS $(LUAROCKS)
	# LUA_PATH_MAKE $(LUA_PATH_MAKE)
	# LUA_CPATH_MAKE $(LUA_CPATH_MAKE)

local: compile
	LUA_PATH='$(LUA_PATH_MAKE)' LUA_CPATH='$(LUA_CPATH_MAKE)' $(LUAROCKS) make --local moonscript-dev-1.rockspec

compile:
	LUA_PATH='$(LUA_PATH_MAKE)' LUA_CPATH='$(LUA_CPATH_MAKE)' $(LUA) bin/moonc moon/ moonscript/
	echo "#!/usr/bin/env lua" > bin/moon
	$(LUA) bin/moonc -p bin/moon.moon >> bin/moon
	echo "-- vim: set filetype=lua:" >> bin/moon

compile_system:
	moonc moon/ moonscript/
	echo "#!/usr/bin/env lua" > bin/moon
	moonc -p bin/moon.moon >> bin/moon
	echo "-- vim: set filetype=lua:" >> bin/moon

watch:
	moonc moon/ moonscript/ && moonc -w moon/ moonscript/

lint:
	moonc -l moonscript moon bin

count:
	wc -l $$(git ls-files | grep 'moon$$') | sort -n | tail