#!/usr/bin/make -f
#export DH_VERBOSE = 1

# Hardening Caffe according to https://wiki.debian.org/Hardening
export DEB_BUILD_MAINT_OPTIONS   = hardening=+all
export DEB_LDFLAGS_MAINT_APPEND  = -Wl,--as-needed

# Try this if it fails to build with a new glibc.
# Thanks to Gianfranco Costamagna <locutusofborg@debian.org>
#export DEB_CFLAGS_MAINT_APPEND   = -Wall -D_GLIBCXX_USE_C99_MATH=1
#export DEB_CXXFLAGS_MAINT_APPEND = -Wall -D_GLIBCXX_USE_C99_MATH=1

DEB_HOST_ARCH ?= $(shell dpkg-architecture -qDEB_HOST_ARCH)
DEB_HOST_MULTIARCH ?= $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)
RULES         := debian/rules
ORIG_SOURCE   := "https://github.com/BVLC/caffe/archive/1.0.tar.gz"
CAFFE_SOVER   := 1.0.0
BUILDDIR      := "caffe_cuda_build"

TEMPLATES     := $(wildcard debian/*.in)
AUTOGEN       := $(patsubst %.in,%,$(TEMPLATES))

## CMake Configuration Template.
## Should sync this with the caffe CPU_ONLY version.
CMAKE_CONFIGURE_TEMPLATE = \
	-DALLOW_LMDB_NOLOCK=OFF \
	-DBLAS="Generic" \
	-DBUILD_SHARED_LIBS=ON \
	-DBUILD_docs=OFF \
	-DBUILD_matlab=OFF \
	-DBUILD_python=ON \
	-DBUILD_python_layer=ON \
	-Dpython_version="3" \
	-DCMAKE_BUILD_TYPE="Release" \
	-DCMAKE_C_FLAGS="$(CFLAGS) $(CPPFLAGS)" \
	-DCMAKE_CXX_FLAGS="$(CXXFLAGS) $(CPPFLAGS)" \
	-DCMAKE_SKIP_RPATH=TRUE \
	-DCMAKE_VERBOSE_MAKEFILE=ON \
	-DUSE_CUDNN=OFF \
	-DUSE_LEVELDB=ON \
	-DUSE_LMDB=ON \
	-DUSE_OPENCV=ON \
	-DCPU_ONLY=$(FILL_THIS_BLANK) \
	-DCMAKE_INSTALL_PREFIX="/usr"

CONFFLAG_CUDA = \
	$(CMAKE_CONFIGURE_TEMPLATE) \
	-DCPU_ONLY=OFF \
	-DCUDA_ARCH_NAME="All" \
	-DCMAKE_CXX_COMPILER=g++-7 \
	-DCMAKE_C_COMPILER=gcc-7 \


%:: %.in
	perl -p \
	-e 's{#CAFFE_CONFIGURE#}{caffe_cuda}g;' \
	-e 's{#CAFFE_SOVER#}{$(CAFFE_SOVER)}g;' \
	-e 's{#DEB_HOST_MULTIARCH#}{$(DEB_HOST_MULTIARCH)}g;' \
	< $< > $@

%:
	dh $@ \
		--buildsystem=cmake \
		--with python3,bash-completion

override_dh_auto_configure: $(AUTOGEN)
	dh_auto_configure --builddirectory=$(BUILDDIR) \
		-- $(CONFFLAG_CUDA)

override_dh_auto_clean:
	dh_auto_clean --builddirectory=$(BUILDDIR)
	-$(RM) -rf python/caffe/proto/ doxygen
	-$(RM) python/caffe/_caffe.so
	-find . -type d -name '__pycache__' -exec rm -rf '{}' +

override_dh_auto_build:
	dh_auto_build --builddirectory=$(BUILDDIR) \
		-- caffe pycaffe test.testbin all

# In the test phase, we need to set LD_LIBRARY_PATH properly
# for those test ELFs linked with libcaffe.so.X
override_dh_auto_test:
	# the i386/amd64 build machine may have no CUDA-capable
	# video card. Hence heading with a dash.
	-dh_auto_test --builddirectory=$(BUILDDIR) \
		-- runtest pytest LD_LIBRARY_PATH=$(shell pwd)/$(BUILDDIR)/lib/

override_dh_python3:
	dh_python3 --requires=python/requirements.txt
	dh_numpy3

override_dh_install:
	dh_install
	# The upstream unittest can be used to verify the BLAS correctness.
	mv caffe_cuda_build/test/test.testbin  caffe-gtest
	install -m0755 caffe-gtest debian/caffe-tools-cuda/usr/bin/
	dh_missing --list-missing

override_dh_auto_install:
	dh_auto_install --builddirectory=$(BUILDDIR) -- install

override_dh_makeshlibs:
	dh_makeshlibs --package=python3-caffe-cuda -X/usr/lib/python
	dh_makeshlibs --remaining-packages

override_dh_fixperms:
	dh_fixperms
	chmod -x debian/tmp/usr/lib/python3/dist-packages/caffe/proto/caffe_pb2.py
	chmod -x debian/tmp/usr/lib/python3/dist-packages/caffe/proto/__init__.py

get-orig-source:
	wget -c $(ORIG_SOURCE) -O caffe_1.0.0.orig.tar.gz