#!/usr/bin/make -f

%:
	dh $@

ROLLUP?=rollup
ROLLUP_FIRST?=$(ROLLUP)

MAKE_STAGED_DIR=set -e;mkdir -p $1;cp -r src $1;cp -r test $1;cp -r bin $1;cp package.json $1;cp rollup.config.js $1;cp rollup.create-config.js $1

SRC_SRC=$(shell find src -name '*' | LC_ALL=C sort)
SRC_BIN=$(shell find bin -name '*' | LC_ALL=C sort)
SRC_ALL=$(SRC_SRC) $(SRC_BIN) package.json rollup.config.js rollup.create-config.js

stage1/build.stamp: $(SRC_ALL)
	$(call MAKE_STAGED_DIR,$(dir $@))
	cd $(dir $@) && $(ROLLUP_ENV) $(ROLLUP_FIRST) -c
	chmod +x $(dir $@)/bin/buble
	touch $@

stage2/build.stamp: stage1/build.stamp
	$(call MAKE_STAGED_DIR,$(dir $@))
	mkdir -p $(dir $@)/node_modules
	ln -s stage1/ $(dir $@)/node_modules/buble
	cd $(dir $@) && $(ROLLUP_ENV) $(ROLLUP) -c
	chmod +x $(dir $@)/bin/buble
	touch $@

stage3/build.stamp: stage2/build.stamp
	$(call MAKE_STAGED_DIR,$(dir $@))
	mkdir -p $(dir $@)/node_modules
	ln -s stage2/ $(dir $@)/node_modules/buble
	cd $(dir $@) && $(ROLLUP_ENV) $(ROLLUP) -c
	chmod +x $(dir $@)/bin/buble
	cp -af $(dir $@)/dist .
	cp -af $(dir $@)/bin .
	rm -rf stage*

override_dh_auto_build: stage3/build.stamp