A Makefile to concatenate / minify my JS Scripts and convert/compress my Stylus (CSS preprocessor) files

Makefile

# JS files
JS_FINAL = js/project-name-all.js

JS_TARGETS = js/file1.js \
             js/file2.js \
             js/file3.js

# CSS files
CSS_FINAL = css/project-name-all.css
STYLUS_TARGETS = css/file1.styl \
                 css/file2.styl

# Binaries
UGLIFY_BIN = uglifyjs
STYLUS_BIN = stylus
STYLUS_PARAMETERS = -I /usr/local/lib/node_modules/nib/lib/

CSS_MINIFIED = $(STYLUS_TARGETS:.styl=.min.css)
JS_MINIFIED = $(JS_TARGETS:.js=.min.js)

all: $(JS_FINAL) $(CSS_FINAL)

# JS
$(JS_FINAL): $(JS_MINIFIED)
	cat $^ >$@
	rm -f $^

%.min.js: %.js
	$(UGLIFY_BIN) -o $@ $<
	echo >> $@

# CSS
$(CSS_FINAL): $(CSS_MINIFIED)
	cat $^ >$@
	rm -f $(CSS_MINIFIED)

%.min.css: %.styl
	$(STYLUS_BIN) --compress $(STYLUS_PARAMETERS) <$< >$@

clean:
	rm -f $(JS_FINAL) $(CSS_FINAL)

.DEFAULT_GOAL := all

.PHONY: clean css