.PHONY: all clean html info

images = hello-world.png hello-lily.png

all: info html

info: $(images)
	makeinfo --no-split image-example.texi

html: $(images)
	makeinfo --no-split --html image-example.texi

%.txt:
	echo -n -e "alt \\\text\\\ for \"$*\\\"" > $@

%.png: %.txt
	enscript -B -o - $< | gs -q -sDEVICE=pnggray -dNOPAUSE -sOutputFile=- - | convert -trim - $@

hello-lily.ly:
	echo -n "\\score{ \\notes\\relative c'' { a b c } }" > $@
	cp $@ hello-lily.txt
	       
hello-lily.png: hello-lily.ly no-lily.png
	ly2dvi --preview $< || cp no-lily.png $@

clean:
	rm -f *.txt *.ly *.png *.html *.info *.ps *.dvi *~

upload:
	$(MAKE) clean
	cd .. && tar czf info-image/info-image.tar.gz info-image
	scp -pr * lilypond.org:public_html/info-image