PYTHON?=python
PYTHON3?=python3
TESTFLAGS=-p -v
TESTOPTS=
SETUPFLAGS=
LXMLVERSION:=$(shell $(PYTHON3) -c 'import re; print(re.findall(r"__version__\s*=\s*\"([^\"]+)\"", open("src/lxml/__init__.py").read())[0])' )

PARALLEL?=$(shell $(PYTHON) -c 'import sys; print("-j7" if sys.version_info >= (3, 5) else "")' )
PARALLEL3?=$(shell $(PYTHON3) -c 'import sys; print("-j7" if sys.version_info >= (3, 5) else "")' )
PYTHON_WITH_CYTHON?=$(shell $(PYTHON)  -c 'import Cython.Build.Dependencies' >/dev/null 2>/dev/null && echo " --with-cython" || true)
PY3_WITH_CYTHON?=$(shell $(PYTHON3) -c 'import Cython.Build.Dependencies' >/dev/null 2>/dev/null && echo " --with-cython" || true)
CYTHON_WITH_COVERAGE?=$(shell $(PYTHON) -c 'import Cython.Coverage; import sys; assert not hasattr(sys, "pypy_version_info")' >/dev/null 2>/dev/null && echo " --coverage" || true)
CYTHON3_WITH_COVERAGE?=$(shell $(PYTHON3) -c 'import Cython.Coverage; import sys; assert not hasattr(sys, "pypy_version_info")' >/dev/null 2>/dev/null && echo " --coverage" || true)

PYTHON_BUILD_VERSION ?= *
MANYLINUX_LIBXML2_VERSION=2.9.12
MANYLINUX_LIBXSLT_VERSION=1.1.34
MANYLINUX_CFLAGS=-O3 -g1 -pipe -fPIC -flto
MANYLINUX_LDFLAGS=-flto

MANYLINUX_IMAGES= \
	manylinux1_x86_64 \
	manylinux1_i686 \
	manylinux_2_24_x86_64 \
	manylinux_2_24_i686 \
	manylinux_2_24_aarch64 \
	manylinux_2_24_ppc64le \
	manylinux_2_24_s390x \
	musllinux_1_1_x86_64

.PHONY: all inplace inplace3 rebuild-sdist sdist build require-cython wheel_manylinux wheel

all: inplace

# Build in-place
inplace:
	$(PYTHON) setup.py $(SETUPFLAGS) build_ext -i $(PYTHON_WITH_CYTHON) --warnings $(subst --,--with-,$(CYTHON_WITH_COVERAGE)) $(PARALLEL)

inplace3:
	$(PYTHON3) setup.py $(SETUPFLAGS) build_ext -i $(PY3_WITH_CYTHON) --warnings $(subst --,--with-,$(CYTHON3_WITH_COVERAGE)) $(PARALLEL3)

rebuild-sdist: require-cython
	rm -f dist/lxml-$(LXMLVERSION).tar.gz
	find src -name '*.c' -exec rm -f {} \;
	$(MAKE) dist/lxml-$(LXMLVERSION).tar.gz

dist/lxml-$(LXMLVERSION).tar.gz:
	$(PYTHON) setup.py $(SETUPFLAGS) sdist $(PYTHON_WITH_CYTHON)

sdist: dist/lxml-$(LXMLVERSION).tar.gz

build:
	$(PYTHON) setup.py $(SETUPFLAGS) build $(PYTHON_WITH_CYTHON)

require-cython:
	@[ -n "$(PYTHON_WITH_CYTHON)" ] || { \
	    echo "NOTE: missing Cython - please use this command to install it: $(PYTHON) -m pip install Cython"; false; }

qemu-user-static:
	docker run --rm --privileged multiarch/qemu-user-static --reset -p yes

wheel_manylinux: $(addprefix wheel_,$(MANYLINUX_IMAGES))
$(addprefix wheel_,$(filter-out %_x86_64, $(filter-out %_i686, $(MANYLINUX_IMAGES)))): qemu-user-static

wheel_%: dist/lxml-$(LXMLVERSION).tar.gz
	time docker run --rm -t \
		-v $(shell pwd):/io \
		-e AR=gcc-ar \
		-e NM=gcc-nm \
		-e RANLIB=gcc-ranlib \
		-e CFLAGS="$(MANYLINUX_CFLAGS) $(if $(patsubst %aarch64,,$@),-march=core2,-march=armv8-a -mtune=cortex-a72)" \
		-e LDFLAGS="$(MANYLINUX_LDFLAGS)" \
		-e LIBXML2_VERSION="$(MANYLINUX_LIBXML2_VERSION)" \
		-e LIBXSLT_VERSION="$(MANYLINUX_LIBXSLT_VERSION)" \
		-e PYTHON_BUILD_VERSION="$(PYTHON_BUILD_VERSION)" \
		-e WHEELHOUSE=$(subst wheel_,wheelhouse/,$@) \
		quay.io/pypa/$(subst wheel_,,$@) \
		bash /io/tools/manylinux/build-wheels.sh /io/$<

wheel:
	$(PYTHON) setup.py $(SETUPFLAGS) bdist_wheel $(PYTHON_WITH_CYTHON)

wheel_static:
	$(PYTHON) setup.py $(SETUPFLAGS) bdist_wheel $(PYTHON_WITH_CYTHON) --static-deps

test_build: build
	$(PYTHON) test.py $(TESTFLAGS) $(TESTOPTS)

test_inplace: inplace
	$(PYTHON) test.py $(TESTFLAGS) $(TESTOPTS) $(CYTHON_WITH_COVERAGE)

test_inplace3: inplace3
	$(PYTHON3) test.py $(TESTFLAGS) $(TESTOPTS) $(CYTHON3_WITH_COVERAGE)

valgrind_test_inplace: inplace
	valgrind --tool=memcheck --leak-check=full --num-callers=30 --suppressions=valgrind-python.supp \
		$(PYTHON) test.py

fuzz: clean
	$(MAKE) \
		CC="/usr/bin/clang" \
		CFLAGS="$$CFLAGS -fsanitize=fuzzer-no-link -g2" \
		CXX="/usr/bin/clang++" \
		CXXFLAGS="-fsanitize=fuzzer-no-link" \
		inplace3
	$(PYTHON3) src/lxml/tests/fuzz_xml_parse.py

gdb_test_inplace: inplace
	@echo "file $(PYTHON)\nrun test.py" > .gdb.command
	gdb -x .gdb.command -d src -d src/lxml

bench_inplace: inplace
	$(PYTHON) benchmark/bench_etree.py -i
	$(PYTHON) benchmark/bench_xpath.py -i
	$(PYTHON) benchmark/bench_xslt.py -i
	$(PYTHON) benchmark/bench_objectify.py -i

ftest_build: build
	$(PYTHON) test.py -f $(TESTFLAGS) $(TESTOPTS)

ftest_inplace: inplace
	$(PYTHON) test.py -f $(TESTFLAGS) $(TESTOPTS)

apidoc: apidocclean inplace3
	@[ -x "`which sphinx-apidoc`" ] \
		&& (echo "Generating API docs ..." && \
			PYTHONPATH=src:$(PYTHONPATH) sphinx-apidoc -e -P -T -o doc/api src/lxml \
				"*includes" "*tests" "*pyclasslookup.py" "*usedoctest.py" "*html/_html5builder.py" \
				"*.so" "*.pyd") \
		|| (echo "not generating Sphinx autodoc API rst files")

apihtml: apidoc inplace3
	@[ -x "`which sphinx-build`" ] \
		&& (echo "Generating API docs ..." && \
			make -C doc/api html) \
		|| (echo "not generating Sphinx autodoc API documentation")

website: inplace3 docclean
	PYTHONPATH=src:$(PYTHONPATH) $(PYTHON3) doc/mkhtml.py doc/html . ${LXMLVERSION}

html: apihtml website s5

s5:
	$(MAKE) -C doc/s5 slides

apipdf: apidoc inplace3
	rm -fr doc/api/_build
	@[ -x "`which sphinx-build`" ] \
		&& (echo "Generating API PDF docs ..." && \
			make -C doc/api latexpdf) \
		|| (echo "not generating Sphinx autodoc API PDF documentation")

pdf: apipdf pdfclean
	$(PYTHON) doc/mklatex.py doc/pdf . ${LXMLVERSION}
	(cd doc/pdf && pdflatex lxmldoc.tex \
		    && pdflatex lxmldoc.tex \
		    && pdflatex lxmldoc.tex)
	@cp doc/pdf/lxmldoc.pdf doc/pdf/lxmldoc-${LXMLVERSION}.pdf
	@echo "PDF available as doc/pdf/lxmldoc-${LXMLVERSION}.pdf"

# Two pdflatex runs are needed to build the correct Table of contents.

test: test_inplace

test3: test_inplace3

valtest: valgrind_test_inplace

gdbtest: gdb_test_inplace

bench: bench_inplace

ftest: ftest_inplace

clean:
	find . \( -name '*.o' -o -name '*.so' -o -name '*.py[cod]' -o -name '*.dll' \) -exec rm -f {} \;
	rm -rf build

docclean:
	$(MAKE) -C doc/s5 clean
	rm -f doc/html/*.html

pdfclean:
	rm -fr doc/pdf

apidocclean:
	rm -fr doc/html/api
	rm -f doc/api/lxml*.rst
	rm -fr doc/api/_build

realclean: clean docclean apidocclean
	find src -name '*.c' -exec rm -f {} \;
	rm -f TAGS
	$(PYTHON) setup.py clean -a --without-cython
