VERSION:=$(shell git describe --dirty | sed 's/^v//')
MANDIR=/usr/share/man
BINDIR=/usr/bin

all: fb

fb: fb.in
	@[ -n "$(VERSION)" ] || (echo "Error: version detection failed"; exit 1)
	sed 's/@VERSION@/$(VERSION)/' fb.in > fb
	chmod 755 fb

clean:
	rm -f fb
	rm -rf dist

install: all
	install -Dm755 fb $(DESTDIR)$(BINDIR)/fb
	install -Dm644 fb.1 $(DESTDIR)$(MANDIR)/man1/fb.1

uninstall:
	rm -f $(DESTDIR)$(BINDIR)/fb
	rm -f $(DESTDIR)$(MANDIR)/man1/fb.1

dist: all
	@[ -n "$(VERSION)" ] || (echo "Error: version detection failed"; exit 1)
	mkdir -p dist/fb-$(VERSION)
	cp -a fb fb.in fb.1 COPYING Makefile dist/fb-$(VERSION)
	sed -i 's/^VERSION:=.*$$/VERSION:="'$(VERSION)'"/' dist/fb-$(VERSION)/Makefile
	cd dist; tar -czf fb-$(VERSION).tar.gz fb-$(VERSION)

version:
	@echo $(VERSION)

.PHONY: all install clean uninstall version dist