MAIN     = songbook
ENGINE   = lualatex
OUTDIR   = output
FLAGS    = --output-directory=$(OUTDIR) --interaction=nonstopmode

.PHONY: all clean distclean

all: $(OUTDIR)/$(MAIN).pdf

$(OUTDIR):
	mkdir -p $(OUTDIR)

$(OUTDIR)/$(MAIN).pdf: $(MAIN).tex songbook-style.sty songs/*.tex | $(OUTDIR)
	TEXINPUTS=.:$(shell pwd): $(ENGINE) $(FLAGS) $(MAIN).tex
	TEXINPUTS=.:$(shell pwd): $(ENGINE) $(FLAGS) $(MAIN).tex

clean:
	rm -f $(OUTDIR)/*.aux $(OUTDIR)/*.log $(OUTDIR)/*.out \
	      $(OUTDIR)/*.toc $(OUTDIR)/*.fls $(OUTDIR)/*.fdb_latexmk \
	      $(OUTDIR)/*.sxd $(OUTDIR)/*.sxc

distclean: clean
	rm -f $(OUTDIR)/$(MAIN).pdf