#!/usr/bin/make -f

DPKG_EXPORT_BUILDFLAGS = 1
include /usr/share/dpkg/buildflags.mk
include /usr/share/dpkg/architecture.mk

export DH_VERBOSE = 1

# make clean does not clean properly, so building out of source
BUILD = $(CURDIR)/build-tree

LDFLAGS += -Wl,--as-needed
LISP := sbcl

oa_libdir := /usr/lib/open-axiom


PACKAGE      := open-axiom
GIT_REPO     := https://github.com/GabrielDosReis/open-axiom.git
DEBIAN_PATH  := $(abspath $(dir $(firstword $(MAKEFILE_LIST))))
SRC_VERSION  := $(shell dpkg-parsechangelog -l$(DEBIAN_PATH)/changelog | awk '/^Version:/ {sub(/-[^-]*/, "", $$2); print $$2}')
GIT_REVISION := $(shell echo $(SRC_VERSION) | sed -r 's,.+git\.(\w+).*,\1,')
TARBALL      := $(PACKAGE)_$(SRC_VERSION).orig.tar.xz
DELETE = \
	contrib/windows-installer \

.PHONY: get-orig-source
get-orig-source:
	rm -rf get-orig-source $(TARBALL) && mkdir get-orig-source
	git clone $(GIT_REPO) get-orig-source/$(PACKAGE)-$(SRC_VERSION)
	git -C get-orig-source/$(PACKAGE)-$(SRC_VERSION) checkout $(GIT_REVISION)
	find get-orig-source/$(PACKAGE)-$(SRC_VERSION) -name '.*' -print0 | xargs -0 --no-run-if-empty rm -rfv
	cd get-orig-source/$(PACKAGE)-$(SRC_VERSION) && rm -rfv $(DELETE)
	tar cJf $(TARBALL) -C get-orig-source $(PACKAGE)-$(SRC_VERSION)
	rm -rf get-orig-source
	@echo "  "$(TARBALL)" created; move it to the right destination to build the package"

debian/open-axiom.1: build-stamp
	help2man --no-info \
		--version-string='$(SRC_VERSION)' \
		-m 'The open scientific computation platform' \
		-n 'open source platform for symbolic, algebraic, and numerical computations' \
		$(BUILD)/src/driver/open-axiom > $@

configure-stamp:
	dh_testdir
	$(LISP) --version </dev/null || true
	dh_auto_configure -B $(BUILD) -- \
		--with-lisp=$(LISP) \
		--with-x
	touch $@

build: build-arch build-indep
build-arch: build-stamp
build-indep: build-stamp
build-stamp: configure-stamp
	dh_testdir
	cd $(BUILD) && $(MAKE) \
		open_axiom_installdir=$(oa_libdir)
ifeq (,$(filter nocheck,$(DEB_BUILD_OPTIONS)))
	cd $(BUILD) && $(MAKE) check
endif
	touch $@

install: install-stamp
install-stamp: build-stamp
	dh_testdir
	dh_testroot
	dh_prep
	dh_auto_install -B $(BUILD) -- \
		oa_installdir=$(oa_libdir)
	touch $@

binary: binary-arch binary-indep
binary-indep: install
binary-arch: install debian/open-axiom.1
ifeq ($(LISP), sbcl)
	dh_install -p open-axiom  usr/lib/open-axiom/lib/libopen-axiom-core.so
	dh_install -p open-axiom  usr/lib/open-axiom/algebra/*.fasl
	dh_install -p open-axiom  usr/lib/open-axiom/interp/*.fasl
	# Remove shebangs and "compiled from ..." lines.
	# This makes lintian happy and prevents disclosure
	# of paths on build machine. E. g.:
	## !$(BUILD)/src/interp/interpsys --script
	## FASL
	#   compiled from "$(BUILD)/src/algebra/IDECOMP.NRLIB/code.lsp"
	#   using SBCL version 1.0.50.0.debian
	find debian/open-axiom -type f -name \*.fasl -exec \
		sed -i '/^#!/ d; /compiled/ d' {} \;
else ifeq ($(LISP), clisp)
	dh_install -p open-axiom  usr/lib/open-axiom/lib/libopen-axiom-core.so
	dh_install -p open-axiom  usr/lib/open-axiom/algebra/*.fas
	dh_install -p open-axiom  usr/lib/open-axiom/interp/*.fas
else ifeq ($(LISP), gcl)
	dh_install -p open-axiom  usr/lib/open-axiom/algebra/*.o
endif
	dh_install
	dh_installman
	dh_installdocs
	dh_installexamples
	dh_installchangelogs
	dh_installmenu
	dh_link

# AXIOMsys seems already stripped, and dh_strip breaks it:
	dh_strip -X AXIOMsys

	dh_compress
	dh_fixperms
	dh_makeshlibs
	dh_installdeb
	dh_shlibdeps
	dh_gencontrol
	dh_buildinfo
	dh_lintian
	dh_md5sums
	dh_builddeb

clean:
	dh_testdir
	rm -rf $(BUILD)
	dh_clean