Makefile

SHELL := zsh
.SHELLFLAGS := +o nomatch -e -c

.ONESHELL:
.SECONDEXPANSION:
.DELETE_ON_ERROR:
.SUFFIXES:

SILE ?= sile
MAGICK ?= magick
GIT ?= git

PACKAGE = $(patsubst %.rockspec.in,%,$(wildcard *.rockspec.in))
ROCKREV = 1
TAG ?= v
SEMVER = $(patsubst v%,%,$(TAG))

DEV_SPEC = $(PACKAGE)-dev-$(ROCKREV).rockspec
DEV_ROCK = $(PACKAGE)-dev-$(ROCKREV).src.rock
ifneq ($(SEMVER),)
REL_SPEC = rockspecs/$(PACKAGE)-$(SEMVER)-$(ROCKREV).rockspec
REL_ROCK = $(PACKAGE)-$(SEMVER)-$(ROCKREV).src.rock
endif

.PHONY: all
all: rockspecs dist

.PHONY: rockspecs
rockspecs: $(DEV_SPEC) $(REL_SPEC)

.PHONY: dist
dist: $(DEV_ROCK) $(REL_ROCK)

.PHONY: test
test:
	@echo "Testing not yet implemented" && false

.PHONY: clean
clean:
	git clean -dxff

.PHONY: lint
lint:
	luacheck .
	luarocks lint -- $(DEV_SPEC)

ifneq ($(SEMVER),)
.PHONY: release
release: $(REL_SPEC)
	$(GIT) diff-index --quiet --cached HEAD || exit 1 # die if anything staged but not committed
	$(GIT) diff-files --quiet || exit 1 # die if any tracked files have unstagged changes
	$(GIT) add $<
	$(GIT) commit -m "Release $(TAG)"
	$(GIT) tag $(TAG)
endif

define rockpec_template =
	sed -e "s/@SEMVER@/$(SEMVER)/g" \
		-e "s/@ROCKREV@/$(ROCKREV)/g" \
		-e "s/@TAG@/$(TAG)/g" \
		$< > $@
endef

$(PACKAGE)-dev-%.rockspec: SEMVER = dev
$(PACKAGE)-dev-%.rockspec: ROCKREV = $*
$(PACKAGE)-dev-%.rockspec: TAG = master
$(PACKAGE)-dev-%.rockspec: $(PACKAGE).rockspec.in
	$(rockpec_template)
	sed -i \
		"1i -- DO NOT EDIT! Modify template $< and rebuild with \`make $@\`" \
		$@

rockspecs/$(PACKAGE)-%.rockspec: REL = $(shell cut -d- -f1 <<< $*)
rockspecs/$(PACKAGE)-%.rockspec: ROCKREV = $(shell cut -d- -f2 <<< $*)
rockspecs/$(PACKAGE)-%.rockspec: TAG = v$*
rockspecs/$(PACKAGE)-%.rockspec: $(PACKAGE).rockspec.in
	$(rockpec_template)
	sed -i \
		-e '/rockspec_format/s/3.0/1.0/' \
		-e '/url = "git/a\   dir = "$(PACKAGE)",' \
		-e '/issues_url/d' \
		-e '/maintainer/d' \
		-e '/labels/d' \
		$@

$(PACKAGE)-dev-%.src.rock: $(DEV_SPEC)
	luarocks pack $<

$(PACKAGE)-%.src.rock: rockspecs/$(PACKAGE)-%.rockspec
	luarocks pack $<

%.pdf: %.sil
	$(SILE) $< -o $@

%.pdf: %.xml
	$(SILE) $< -o $@

%.png: %.pdf
	$(MAGICK) convert -density 300 $< $@

$(MAKEFILE_LIST):;