# Copyright (C) 2004-2024 Daniel Baumann <daniel@debian.org>
#
# SPDX-License-Identifier: GPL-3.0+
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

SHELL := sh -e

PROJECT := fastforward-packages
SOFTWARE := fastforward-packages

VERSION := $(shell cat VERSION.txt)

all: build

clean: clean-pgp

clean-pgp:
	# clean pgp keyrings
	rm -f pgp-keys/*/*.gpg
	rm -f pgp-keys/*.gpg

build: build-pgp

build-pgp: pgp-keys/*/*.pub
	# build pgp keyrings
	for KEY in $$(ls pgp-keys/*/*.pub); \
	do \
		OUTPUT="$$(dirname $${KEY})/$$(basename $${KEY} .pub).gpg"; \
		echo "Creating $${OUTPUT}..."; \
		gpg --output $${OUTPUT} --dearmor $${KEY}; \
	done

	for DIRECTORY in $$(ls -d pgp-keys/*/); \
	do \
		OUTPUT="pgp-keys/$$(basename $${DIRECTORY}).gpg"; \
		echo "Creating $${OUTPUT}..."; \
		for KEY in $$(ls $${DIRECTORY}/*.gpg); \
		do \
			cat $${KEY} >> $${OUTPUT}; \
		done; \
	done

test: test-pgp

test-pgp: pgp-keys/*/*.sign
	# test pgp keyrings
	for SIG in $$(ls pgp-keys/*/*.sign); \
	do \
		echo "Verifying $${SIG}..."; \
		gpg --no-default-keyring --keyring /usr/share/keyrings/debian-keyring.gpg --keyring /usr/share/keyrings/debian-maintainers.gpg --verify $${SIG}; \
	done

install: install-doc install-pgp

install-doc:
	# install doc
	mkdir -p $(DESTDIR)/usr/share/doc/$(SOFTWARE)
	cp *.txt $(DESTDIR)/usr/share/doc/$(SOFTWARE)

install-pgp: build-pgp
	# install pgp keyrings
	mkdir -p $(DESTDIR)/usr/share/$(SOFTWARE)/pgp-keys
	cp pgp-keys/*.gpg $(DESTDIR)/usr/share/$(SOFTWARE)/pgp-keys

uninstall: uninstall-doc uninstall-pgp

uninstall-doc:
	# uninstall doc
	rm -rf $(DESTDIR)/usr/share/doc/$(SOFTWARE)

uninstall-pgp:
	# uninstall pgp keyrings
	rm -rf $(DESTDIR)/usr/share/$(SOFTWARE)/pgp-keys
	-rmdir --parents $(DESTDIR)/usr/share/$(SOFTWARE)

reinstall: clean uninstall build install

distclean: clean
	rm -rf $(SOFTWARE)-$(VERSION)

release: distclean
	git commit -a -s -S -m 'Releasing version $(VERSION).' || true
	git tag -s -m 'Tagging version $(VERSION).' v$(VERSION) || true

	mkdir -p $(SOFTWARE)-$(VERSION)
	find . -mindepth 1 -maxdepth 1 -and -not -name ".git*" -and -not -name debian -and -not -name $(SOFTWARE)-$(VERSION) -exec cp \-a {} $(SOFTWARE)-$(VERSION) \;

	for FORMAT in xz; \
	do \
		EXTENSION=$$(echo $${FORMAT} | cut -b-2); \
		tar --$${FORMAT} -cf ../$(SOFTWARE)-$(VERSION).tar.$${EXTENSION} $(SOFTWARE)-$(VERSION); \
		sha512sum ../$(SOFTWARE)-$(VERSION).tar.$${EXTENSION} > ../$(SOFTWARE)-$(VERSION).tar.$${EXTENSION}.sha512; \
		gpg --default-key 0xE184321652A10838 --armor -b ../$(SOFTWARE)-$(VERSION).tar.$${EXTENSION}; \
		mv ../$(SOFTWARE)-$(VERSION).tar.$${EXTENSION}.asc ../$(SOFTWARE)-$(VERSION).tar.$${EXTENSION}.sign; \
	done

	rm -rf $(SOFTWARE)-$(VERSION)

upload:
	scp ../$(SOFTWARE)-$(VERSION).* apt.$(PROJECT).org:/srv/apt.$(PROJECT).org/archive/upstream/$(SOFTWARE)