VERSION:=$(shell git describe|sed -e 's/^v//')
OLDVERSION:=$(shell cat .version 2>/dev/null)

.PHONY: FORCE

all: omk-manual.txt omk-manual.html omk-manual.pdf

ifneq ($(VERSION),$(OLDVERSION))
.version: FORCE
	echo $(VERSION) | cmp -s $@ - || echo $(VERSION) > $@
endif

PNG_FIGS = $(wildcard *.png)
PDF_FIGS = $(patsubst %.png,%.pdf,$(PNG_FIGS))

%.pdf: %.png
	convert $< -density 150 $@

%.pdf: %.texinfo $(PNG_FIGS) .version
	texi2dvi --pdf $<
	texi2dvi --pdf $<

%.txt: %.texinfo .version
	makeinfo --no-headers --force -o $@ $<

%.html: %.texinfo .version
	makeinfo --html --no-split -o $@ $<
#	texi2html --l2h $<
# Fix texinfo HTML output
# 	perl -w -n -e 'if (/<div class="contents">/) {$$toc=1}' \
# 		   -e 'if (!$$toc) { s/class="toc"//}' \
# 		   -e '@match=/\[ ([^ ]+) \]/; if (@match > 0 && -r $$match[0] . ".png") { s/\[ ([^ ]+) \]/<img src="$$1.png"><\/img>/ }' \
# 		   -e 'print;' < $@ > $@.tmp
# 	mv $@.tmp $@

clean:
	rm -f $(addprefix omk-manual.,aux cp cps fn ky log pg toc tp vr vrs) $(PDF_FIGS) .version

WWW ?= www

web: all $(WWW) $(addprefix $(WWW)/,index.html omk-manual.html $(wildcard *.png) omk-manual.pdf $(wildcard RelNotes*.txt))

$(WWW):
	mkdir $@

$(WWW)/index.html: index.html
	sed -e "s/<!-- @LAST_MODIFIED@ -->/`LC_TIME=C TZ= date`/" < $< > $@

$(WWW)/%: %
	cp -p $^ $@