#!/usr/bin/make -f
# See debhelper(7) (uncomment to enable)
# output every command that modifies files on the build system.
#export DH_VERBOSE = 1


# see EXAMPLES in dpkg-buildflags(1) and read /usr/share/dpkg/*
DPKG_EXPORT_BUILDFLAGS = 1
include /usr/share/dpkg/default.mk

DEB_HOST_MULTIARCH ?= $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)

DEB_SOURCE_PACKAGE := $(strip $(shell egrep '^Source: ' debian/control | cut -f 2 -d ':'))
DEB_VERSION := $(shell dpkg-parsechangelog -S Version)
DEB_NOEPOCH_VERSION := $(shell echo $(DEB_VERSION) | cut -d: -f2-)
DEB_UPSTREAM_VERSION := $(shell echo $(DEB_NOEPOCH_VERSION) | sed 's/-[^-]*$$//')
DEB_STRIPPED_UPSTREAM_VERSION = $(shell echo $(DEB_UPSTREAM_VERSION) | sed -e 's/[\.\+]dfsg.*$$//p' )

# SLEPC4PY_VERSION is used for the package names, library sonames, and
# /usr/lib/petscdir subdirectory names.
export SLEPC4PY_VERSION=$(DEB_STRIPPED_UPSTREAM_VERSION)$(SLEPC_EXT)
# use only major.minor in general soname (rather than major.minor.patch.build)
export SLEPC_BASE_VERSION=$(shell echo $(SLEPC4PY_VERSION) | awk 'BEGIN { FS="."}; {print $$1"."$$2 }')

SLEPC_MAJOR_VERSION=$(shell echo $(SLEPC_BASE_VERSION) | sed "s/\..*//")
SLEPC_MINOR_VERSION=$(shell echo $(SLEPC_BASE_VERSION) | sed "s/.*\.//")
SLEPC_NEXT_VERSION=$(shell echo $(SLEPC_MAJOR_VERSION).$$(( $(SLEPC_MINOR_VERSION) + 1 )) )

PETSC_DIR_REAL=/usr/lib/petscdir/petsc$(SLEPC_BASE_VERSION)/$(DEB_HOST_MULTIARCH)-real
SLEPC_DIR_REAL=/usr/lib/slepcdir/slepc$(SLEPC_BASE_VERSION)/$(DEB_HOST_MULTIARCH)-real
PETSC_DIR_COMPLEX=/usr/lib/petscdir/petsc$(SLEPC_BASE_VERSION)/$(DEB_HOST_MULTIARCH)-complex
SLEPC_DIR_COMPLEX=/usr/lib/slepcdir/slepc$(SLEPC_BASE_VERSION)/$(DEB_HOST_MULTIARCH)-complex

PETSC64_DIR_REAL=/usr/lib/petscdir/petsc64-$(SLEPC_BASE_VERSION)/$(DEB_HOST_MULTIARCH)-real
SLEPC64_DIR_REAL=/usr/lib/slepcdir/slepc64-$(SLEPC_BASE_VERSION)/$(DEB_HOST_MULTIARCH)-real
PETSC64_DIR_COMPLEX=/usr/lib/petscdir/petsc64-$(SLEPC_BASE_VERSION)/$(DEB_HOST_MULTIARCH)-complex
SLEPC64_DIR_COMPLEX=/usr/lib/slepcdir/slepc64-$(SLEPC_BASE_VERSION)/$(DEB_HOST_MULTIARCH)-complex

# see FEATURE AREAS in dpkg-buildflags(1)
#export DEB_BUILD_MAINT_OPTIONS = hardening=+all

# see ENVIRONMENT in dpkg-buildflags(1)
# package maintainers to append CFLAGS
#export DEB_CFLAGS_MAINT_APPEND  = -Wall -pedantic
# package maintainers to append LDFLAGS
#export DEB_LDFLAGS_MAINT_APPEND = -Wl,--as-needed


# main packaging script based on dh7 syntax
%:
	dh $@ --with python3,sphinxdoc --buildsystem=pybuild

override_dh_clean:
	dh_clean
	rm -rf .eggs

# nothing to build for arch-indep (docs, dummy package)
override_dh_auto_configure-indep: ;
override_dh_auto_build-indep: ;
override_dh_auto_install-indep: ;

override_dh_auto_configure-arch:
	PYBUILD_NAME=slepc4py_real SLEPC_DIR=$(SLEPC_DIR_REAL)  PETSC_DIR=$(PETSC_DIR_REAL)  dh_auto_configure -ppython3-slepc4py-real$(SLEPC_BASE_VERSION)
	PYBUILD_NAME=slepc4py_complex SLEPC_DIR=$(SLEPC_DIR_COMPLEX)  PETSC_DIR=$(PETSC_DIR_COMPLEX)  dh_auto_configure -ppython3-slepc4py-complex$(SLEPC_BASE_VERSION)
	PYBUILD_NAME=slepc4py_64_real SLEPC_DIR=$(SLEPC64_DIR_REAL)  PETSC_DIR=$(PETSC64_DIR_REAL)  dh_auto_configure -ppython3-slepc4py-64-real$(SLEPC_BASE_VERSION)
	PYBUILD_NAME=slepc4py_64_complex SLEPC_DIR=$(SLEPC64_DIR_COMPLEX)  PETSC_DIR=$(PETSC64_DIR_COMPLEX)  dh_auto_configure -ppython3-slepc4py-64-complex$(SLEPC_BASE_VERSION)

override_dh_auto_build-arch:
	PYBUILD_NAME=slepc4py_real SLEPC_DIR=$(SLEPC_DIR_REAL)  PETSC_DIR=$(PETSC_DIR_REAL)  dh_auto_build -ppython3-slepc4py-real$(SLEPC_BASE_VERSION)
	PYBUILD_NAME=slepc4py_complex SLEPC_DIR=$(SLEPC_DIR_COMPLEX)  PETSC_DIR=$(PETSC_DIR_COMPLEX)  dh_auto_build -ppython3-slepc4py-complex$(SLEPC_BASE_VERSION)
	PYBUILD_NAME=slepc4py_64_real SLEPC_DIR=$(SLEPC64_DIR_REAL)  PETSC_DIR=$(PETSC64_DIR_REAL)  dh_auto_build -ppython3-slepc4py-64-real$(SLEPC_BASE_VERSION)
	PYBUILD_NAME=slepc4py_64_complex SLEPC_DIR=$(SLEPC64_DIR_COMPLEX)  PETSC_DIR=$(PETSC64_DIR_COMPLEX)  dh_auto_build -ppython3-slepc4py-64-complex$(SLEPC_BASE_VERSION)
	# slepc4py embeds the deep PETSC_DIR path as RPATH in its library.
	# Swap it out for a standard path, or else dh_shlibdeps gets confused
	chrpath -d .pybuild/*python*/build/slepc4py*/lib/SLEPc*.so

override_dh_auto_build-indep: export http_proxy=127.0.0.1:9
override_dh_auto_build-indep: export https_proxy=127.0.0.1:9
override_dh_auto_build-indep:
	PYTHONPATH=. sphinx-build -M html docs/source .pybuild/docs
	mv .pybuild/docs/html .pybuild/docs/usrman

override_dh_auto_install-arch:
	PYBUILD_NAME=slepc4py_real SLEPC_DIR=$(SLEPC_DIR_REAL)  PETSC_DIR=$(PETSC_DIR_REAL)  dh_auto_install -ppython3-slepc4py-real$(SLEPC_BASE_VERSION)
	PYBUILD_NAME=slepc4py_complex SLEPC_DIR=$(SLEPC_DIR_COMPLEX) PETSC_DIR=$(PETSC_DIR_COMPLEX)  dh_auto_install -ppython3-slepc4py-complex$(SLEPC_BASE_VERSION)
	PYBUILD_NAME=slepc4py_64_real SLEPC_DIR=$(SLEPC64_DIR_REAL)  PETSC_DIR=$(PETSC64_DIR_REAL)  dh_auto_install -ppython3-slepc4py-64-real$(SLEPC_BASE_VERSION)
	PYBUILD_NAME=slepc4py_64_complex SLEPC_DIR=$(SLEPC64_DIR_COMPLEX) PETSC_DIR=$(PETSC64_DIR_COMPLEX)  dh_auto_install -ppython3-slepc4py-64-complex$(SLEPC_BASE_VERSION)
	mkdir -p debian/python3-slepc4py-real$(SLEPC_BASE_VERSION)/usr debian/python3-slepc4py-complex$(SLEPC_BASE_VERSION)/usr
	mv debian/python3-slepc4py-real/usr/lib debian/python3-slepc4py-real$(SLEPC_BASE_VERSION)/usr
	mv debian/python3-slepc4py-complex/usr/lib debian/python3-slepc4py-complex$(SLEPC_BASE_VERSION)/usr
	mkdir -p debian/python3-slepc4py-64-real$(SLEPC_BASE_VERSION)/usr debian/python3-slepc4py-64-complex$(SLEPC_BASE_VERSION)/usr
	mv debian/python3-slepc4py-64-real/usr/lib debian/python3-slepc4py-64-real$(SLEPC_BASE_VERSION)/usr
	mv debian/python3-slepc4py-64-complex/usr/lib debian/python3-slepc4py-64-complex$(SLEPC_BASE_VERSION)/usr

override_dh_installdocs:
	dh_installdocs debian/README.Debian

override_dh_sphinxdoc:
	dh_sphinxdoc -Xcontents.rst.txt

override_dh_python3-indep:
	dh_python3 -i
	dh_numpy3 -i

override_dh_python3-arch:
	dh_python3 -a
	dh_numpy3 -a
	mkdir -p debian/python3-slepc4py-real$(SLEPC_BASE_VERSION)/$(SLEPC_DIR_REAL)/lib debian/python3-slepc4py-complex$(SLEPC_BASE_VERSION)/$(SLEPC_DIR_COMPLEX)/lib
	mv debian/python3-slepc4py-real$(SLEPC_BASE_VERSION)/usr/lib/python3 debian/python3-slepc4py-real$(SLEPC_BASE_VERSION)/$(SLEPC_DIR_REAL)/lib
	mv debian/python3-slepc4py-complex$(SLEPC_BASE_VERSION)/usr/lib/python3 debian/python3-slepc4py-complex$(SLEPC_BASE_VERSION)/$(SLEPC_DIR_COMPLEX)/lib
	mkdir -p debian/python3-slepc4py-64-real$(SLEPC_BASE_VERSION)/$(SLEPC64_DIR_REAL)/lib debian/python3-slepc4py-64-complex$(SLEPC_BASE_VERSION)/$(SLEPC64_DIR_COMPLEX)/lib
	mv debian/python3-slepc4py-64-real$(SLEPC_BASE_VERSION)/usr/lib/python3 debian/python3-slepc4py-64-real$(SLEPC_BASE_VERSION)/$(SLEPC64_DIR_REAL)/lib
	mv debian/python3-slepc4py-64-complex$(SLEPC_BASE_VERSION)/usr/lib/python3 debian/python3-slepc4py-64-complex$(SLEPC_BASE_VERSION)/$(SLEPC64_DIR_COMPLEX)/lib

override_dh_compress:
	dh_compress -Xpdf

override_dh_installdeb:
	dh_installdeb
	for pkg in $$(dh_listpackages -a); do \
	  sed -i -e 's/__SLEPC4PY_VERSION__/$(SLEPC4PY_VERSION)/' debian/$$pkg/DEBIAN/*; \
	done