## Copyright (C) 2022 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
## This file is part of stage0.
##
## stage0 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.
##
## stage0 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 stage0.  If not, see <http://www.gnu.org/licenses/>.

PACKAGE = bootstrap-seeds

### dist
.PHONY: dist

COMMIT=$(shell git describe --dirty)
TARBALL_VERSION=$(COMMIT:Release_%=%)
TARBALL_DIR:=$(PACKAGE)-$(TARBALL_VERSION)
TARBALL=$(TARBALL_DIR).tar.gz
# Be friendly to Debian; avoid using EPOCH
MTIME=$(shell git show HEAD --format=%ct --no-patch)
# Reproducible tarball
TAR_FLAGS=--sort=name --mtime=@$(MTIME) --owner=0 --group=0 --numeric-owner --mode=go=rX,u+rw,a-s

$(TARBALL):
	(git ls-files                                  \
	    --exclude=$(TARBALL_DIR);                  \
	    echo $^ | tr ' ' '\n')                     \
	    | tar $(TAR_FLAGS)                         \
	    --transform=s,^,$(TARBALL_DIR)/,S -T- -cf- \
	    | gzip -c --no-name > $@

dist: $(TARBALL)
