VERSION=1.2
YEAR=2022
BUILD_DATE:=$(shell date '+%Y-%m-%d')
BUILD_COMMIT:=$(shell if git rev-parse >/dev/null 2>/dev/null ; then git describe --always --tags ; else echo '<unknown>' ; fi)

DESTDIR=
PREFIX=/usr/local
BINDIR=$(PREFIX)/bin
MANDIR=$(PREFIX)/share/man

CXXFLAGS=-O2 -Wall -Wextra -Wno-parentheses -std=gnu++11 -g

all: paperjam paperjam.1 paperjam.1.html

MODULES=paperjam pdf-tools parse cmds pdf
OBJS=$(addsuffix .o, $(MODULES))

paperjam: $(OBJS)
	$(LD) -o $@ $^ $(LDLIBS)
paperjam: LDLIBS += -lqpdf -lpaper
paperjam: LD=$(CXX)

$(OBJS): jam.h pdf-tools.h

paperjam.o: CXXFLAGS += -DVERSION='"$(VERSION)"' -DYEAR='"$(YEAR)"' -DBUILD_DATE='"$(BUILD_DATE)"' -DBUILD_COMMIT='"$(BUILD_COMMIT)"'

paperjam.1: paperjam.1.txt
	a2x -f manpage $<

# The dependency on paperjam.1 is there to serialize both calls of asciidoc,
# which does not name temporary files safely.
paperjam.1.html: paperjam.1.txt paperjam.1
	a2x -f xhtml -D . $<

clean:
	rm -f *.o
	rm -f paperjam
	rm -f paperjam.1 paperjam.1.html docbook-xsl.css
	rm -f *.tar.gz

install: all
	install -d $(DESTDIR)$(BINDIR) $(DESTDIR)$(MANDIR)/man1
	install -s paperjam $(DESTDIR)$(BINDIR)/
	install -m 644 paperjam.1 $(DESTDIR)$(MANDIR)/man1/

release:
	git tag v$(VERSION)
	git push --tags
	git archive --format=tar --prefix=paperjam-$(VERSION)/ HEAD | gzip >paperjam-$(VERSION).tar.gz
	rsync paperjam-$(VERSION).tar.gz jw:/home/ftp/pub/mj/linux/
	rsync paperjam.1.html jw:web/static/sw/paperjam/
	ssh jw 'cd web && bin/release-prog paperjam $(VERSION)'

.PHONY: all clean release