#!/usr/bin/make -f

DEB_VERSION = $(shell dpkg-parsechangelog | awk '/^Version/ {print $$2}')
UPSTREAM_VERSION = $(shell echo $(DEB_VERSION) | sed 's/-.*//')
GLIBC_GIT = https://sourceware.org/git/glibc.git
GLIBC_TAG = glibc-$(UPSTREAM_VERSION)
GLIBC_CHECKOUT = glibc-checkout
DEB_DIR = glibc-doc-reference-$(UPSTREAM_VERSION)
DEB_ORIG = ../glibc-doc-reference_$(UPSTREAM_VERSION).orig.tar.xz

%:
	dh $@

override_dh_auto_build-indep:
	mkdir -p $(CURDIR)/build
	echo "MAKEINFO = makeinfo"                                           >  $(CURDIR)/build/config.make
	echo "AWK = gawk"                                                    >> $(CURDIR)/build/config.make
	echo "PERL = perl"                                                   >> $(CURDIR)/build/config.make
	echo "PYTHON = python3"                                              >> $(CURDIR)/build/config.make
	echo "PKGVERSION_TEXI = (Debian glibc-doc-reference $(DEB_VERSION))" >> $(CURDIR)/build/config.make
	echo "REPORT_BUGS_TEXI = @uref{https://www.debian.org/Bugs/}"        >> $(CURDIR)/build/config.make
	$(MAKE) -C manual objdir=$(CURDIR)/build info html pdf

override_dh_auto_clean:
	rm -fr $(CURDIR)/build
	dh_auto_clean

get-orig-source: $(DEB_ORIG)
$(DEB_ORIG):
	dh_testdir
	git clone --bare $(GLIBC_GIT) $(GLIBC_CHECKOUT)
	mkdir -p $(DEB_DIR)
	(cd $(GLIBC_CHECKOUT) && git archive -v --format=tar $(GLIBC_TAG)) | tar -C $(DEB_DIR) -xf -
	tar --mode=go=rX,u+rw,a-s --owner=root --group=root --numeric-owner -Jcf $(DEB_ORIG) \
		$(DEB_DIR)/manual \
		$(DEB_DIR)/math/gen-libm-test.py \
		$(DEB_DIR)/scripts/mkinstalldirs \
		$(DEB_DIR)/scripts/move-if-change \
		`find $(DEB_DIR) -name "libm-test-ulps*"`
	rm -rf $(DEB_DIR) $(GLIBC_CHECKOUT)
