Read explanation here: http://danmarner.com/2013/05/27/Sencha-Touch-Workflow-with-GNU-Make-and-Tmux.html

Sencha Touch Workflow with GNU Make and Tmux

SASS_PATH = resources/sass
COFFEE_PATH = app

all: sass coffee

develop: watch server

server:
	python3 -m http.server

watch:
	tmux split-window -v "make watchsass"
	tmux split-window -h "make watchcoffee"

sass:
	compass compile ${SASS_PATH}

coffee:
	coffee -o ${COFFEE_PATH} -c src

watchcoffee:
	coffee --watch -o ${COFFEE_PATH} -c src

watchsass:
	compass watch ${SASS_PATH}

package:
	sencha app build package