d3version=2.4.3
jqueryversion=1.4.4

all: d3.min.js d3.layout.min.js jquery-$(jqueryversion).min.js jquery.tablesorter.min.js

%.min.js: %.js
	$(closurecompiler) '$<'

jquery-$(jqueryversion).js:
	wget http://code.jquery.com/$@

d3.%: .d3/d3-$(d3version) Makefile
	echo '/* $@ - Data Driven Documents' > $@
	echo ' * Version: $(d3version)' >> $@
	echo ' * Homepage: http://mbostock.github.com/d3/' >> $@
	echo ' * Copyright: 2010, Michael Bostock' >> $@
	echo ' * Licence: 3-Clause BSD' >> $@
	echo ' *' >> $@
	sed 's/./ * &/' $</LICENSE >> $@
	echo ' */' >> $@
	cat $</$@ >> $@
.d3/d3-%.tar.gz: Makefile
	mkdir -p $(@D)
	wget https://github.com/mbostock/d3/tarball/v$* -O $@
.d3/d3-%: .d3/d3-%.tar.gz Makefile
	mkdir -p $<.d
	cd $<.d && tar xzf ../d3-$*.tar.gz
	cp -r $<.d/*/ $@

.SECONDARY:
closurecompiler=compiler() { cp "$$1" "$${1%.js}.min.js"; }; compiler