Dumb make system that recompiles updated LESS files.

Makefile

SOURCE_FILES=main.less

SOURCE_PATH=src/less/
TARGET_PATH=css/

SOURCES=$(addprefix ${SOURCE_PATH}, ${SOURCE_FILES})
SOURCES_AND_LIBS=$(shell find ${SOURCE_PATH} -name '*.less')

TARGETS=$(addprefix ${TARGET_PATH}, $(addsuffix .css, $(basename ${SOURCE_FILES})))

all: ${TARGETS}

${TARGET_PATH}%.css: ${SOURCE_PATH}%.less ${SOURCES_AND_LIBS}
	lessc $< > $@

update.sh

#!/usr/bin/env sh

while true
do
    inotifywait -q -e modify `find src/less/ -name '*.less'`
    make
done