#!/usr/bin/make -f

# resolve DEB_DISTRIBUTION DEB_VERSION_UPSTREAM
include /usr/share/dpkg/pkg-info.mk

# resolve if release is experimental
DEB_SUITE_EXP = $(filter experimental% UNRELEASED,$(DEB_DISTRIBUTION))

# generate documentation unless nodoc requested
DOCS_stem = README $(basename $(wildcard docs/*.md crates/*/*.md))
ifeq (,$(filter nodoc,$(DEB_BUILD_OPTIONS)))
DOCS = $(addsuffix .html,$(DOCS_stem)) $(addsuffix .txt,$(DOCS_stem))
DOCS += crates/usvg/docs/spec.html
CHANGELOGS = CHANGELOG.html CHANGELOG.txt
MANPAGES = debian/resvg.1 debian/usvg.1
endif

export DEB_BUILD_MAINT_OPTIONS = hardening=+all
export DEB_CFLAGS_MAINT_APPEND  = -Wall -pedantic
export DEB_CXXFLAGS_MAINT_APPEND  = -Wall -pedantic

# trust upstream optimization level unless explicitly disabled
ifeq (,$(filter noopt,$(DEB_BUILD_OPTIONS)))
export DEB_CFLAGS_MAINT_STRIP = -O2
export DEB_CXXFLAGS_MAINT_STRIP = -O2
endif

# generate manual pages from output of clap-based Rust binary
#  arguments: 1:MANFILEPATH 2:COMMANDPATH 3:SUBCOMMAND(S)
_help2man = \
 $(eval suffix = $(lastword $(subst ., ,$(1))))\
 $(eval stem = $(patsubst %.$(suffix),%,$(1)))\
 help2man --section $(suffix) --no-info \
 --version-string='$(DEB_VERSION_UPSTREAM)' \
 --name $(shell $(2) $(3) --help | head --lines=1 | xargs -0 shell-quote --) \
 --output '$(stem)$(if $(3),-$(subst $() ,-,$(strip $(3)))).$(suffix)' \
 '$(2)$(if $(3), $(3))' \
 || { $(2) $(3) --help; false; }

#SONAME=libresvg.so.0

pods = $(wildcard debian/*.pod)
manpages = $(pods:.pod=.1)

#execute_after_dh_auto_install:
#	ln -sf $(SONAME) debian/tmp/usr/lib/*/libresvg.so

TEST_BROKEN = \
 render::structure_style_rule_specificity \

BINARY_FILES_ADD = \
 crates/resvg/tests/tests/text/text/glyph-splitting.png

%:
	dh $@

%.html: %.adoc
	asciidoctor -a webfonts! $<

%.html: %.md
	cmark-gfm $< > $@

%.txt: %.md
	cmark-gfm --to plaintext $< > $@

# override binary files during build
execute_after_dh_auto_configure:
	set -e; \
	for f in $(BINARY_FILES_ADD); do \
	 cp -f debian/patches/*/$$(basename "$$f") "$$f"; \
	done

execute_after_dh_auto_build: $(DOCS) $(CHANGELOGS)

override_dh_auto_test:
	dh_auto_test --buildsystem rust -- \
	 --no-fail-fast -- $(addprefix --skip ,$(TEST_BROKEN))
	$(if $(DEB_SUITE_EXP),\
	 dh_auto_test --buildsystem rust -- --no-fail-fast || true)

execute_after_dh_auto_install-arch: $(MANPAGES)

override_dh_installchangelogs:
	dh_installchangelogs -- $(CHANGELOGS)

# restore binary files overridden during build
execute_after_dh_auto_clean:
	set -e; \
	for f in $(BINARY_FILES_ADD); do \
	 rm -f "$$f"; \
	done

# build manpages
debian/resvg.1: debian/%.1: debian/resvg/usr/bin/%
	$(call _help2man,$@,$<)
debian/usvg.1: debian/%.1: debian/usvg/usr/bin/%
	$(call _help2man,$@,$<)

#execute_after_dh_strip:
#	patchelf --set-soname $(SONAME) debian/libresvg*/usr/lib/*/$(SONAME)