TARGET_DIR ?=/opt/local
FILE ?=$(COMPONENT)-$(VERSION)$(SUFFIX)
BLOCK_SIZE ?=65536
STAGE_DIR ?=deploy
TMP_DIR ?=tmp
PKG_CATEGORY ?=fifo
PKG_HOMEPAGE ?=https://project-fifo.net

.PHONY: package_list build_info clean-pkg

package_list:
	-rm packlist || true
	for dep in $(DEPS); do echo "@pkgdep $$dep" >> packlist; done
	(cd $(STAGE_DIR); find * -type f | sort) >> packlist

build_info:
	pkg_info -X pkg_install | egrep '^(MACHINE_ARCH|OPSYS|OS_VERSION|PKGTOOLS_VERSION)' >build-info
	echo "CATEGORIES=$(PKG_CATEGORY)" >>build-info
	echo "HOMEPAGE=$(PKG_HOMEPAGE)" >>build-info

clean-pkg:
	-rm -r tmp build-info packlist


tmp/$(FILE).tgz: package_list build_info
	-rm -r tmp
	mkdir tmp
	pkg_create -i install.sh -k deinstall.sh -D displayfile -B build-info -c comment -d description -f packlist -I $(TARGET_DIR) -p $(STAGE_DIR) -U tmp/$(FILE).tgz

ifdef GPG_KEY
$(FILE).tgz: tmp/$(FILE).tgz +PKG_HASH +PKG_GPG_SIGNATURE
	-rm $(FILE).tgz
	gar r $(FILE).tgz +PKG_HASH +PKG_GPG_SIGNATURE tmp/$(FILE).tgz
	rm -r tmp
else
$(FILE).tgz: tmp/$(FILE).tgz
	cp tmp/$(FILE).tgz $(FILE).tgz
	rm -r tmp
endif


+PKG_HASH: tmp/$(FILE).tgz
	split -b $(BLOCK_SIZE) tmp/$(FILE).tgz tmp/split
	echo "pkgsrc signature\n\nversion: 1\npkgname: $(FILE)" > +PKG_HASH
	echo "algorithm: SHA512\nblock size: $(BLOCK_SIZE)" >> +PKG_HASH
	echo "file size: $(shell stat -c%s tmp/$(FILE).tgz)\n" >> +PKG_HASH
	for file in tmp/split*; do digest -a sha512 $$file >> +PKG_HASH; done
	echo "end pkgsrc signature" >> +PKG_HASH

+PKG_GPG_SIGNATURE: +PKG_HASH
	-rm +PKG_GPG_SIGNATURE
	gpg --default-key $(GPG_KEY) -o +PKG_GPG_SIGNATURE --detach-sign --armor +PKG_HASH