Makefile : abstract vars

Makefile

@@ -1,23 +1,24 @@
 JS_ENGINE ?= `which node nodejs`
-ISO = jquery.isotope.js
-ISO_MIN = jquery.isotope.min.js
+JS = jquery.isotope.js
+JS_MIN = jquery.isotope.min.js
+SITE = isotope-site
 
 # minifies jquery.isotope.js
 # requires NodeJS and global uglify-js
 min: ${ISO}
 	@@if test ! -z ${JS_ENGINE}; then \
-		echo "Minifying" ${ISO}; \
-		uglifyjs ${ISO} > ${ISO_MIN}.tmp; \
-		echo ';' >> ${ISO_MIN}.tmp; \
-		sed 's/\*\//&§/; y/§/\n/;' ${ISO_MIN}.tmp > ${ISO_MIN}; \
-		rm ${ISO_MIN}.tmp; \
+		echo "Minifying" ${JS}; \
+		uglifyjs ${JS} > ${JS_MIN}.tmp; \
+		echo ';' >> ${JS_MIN}.tmp; \
+		sed 's/\*\//&§/g; y/§/\n/;' ${JS_MIN}.tmp > ${JS_MIN}; \
+		rm ${JS_MIN}.tmp; \
 	else \
 		echo "NodeJS required for minification."; \
 	fi
 
 # creates zip file of site
 zip: _site
-	mkdir isotope-site
-	cp -r _site/ isotope-site
-	zip -r ~/Desktop/isotope-site.zip isotope-site/
-	rm -rf isotope-site
+	mkdir ${SITE}
+	cp -r _site/ ${SITE}
+	zip -r ~/Desktop/${SITE}.zip ${SITE}/
+	rm -rf ${SITE}