gulp-coffee-sass

gistfile1.js

    var gulp     = require('gulp'),
    gutil        = require('gulp-util'),
    coffee       = require('gulp-coffee'),
    uglify       = require('gulp-uglify'),
    sass         = require('gulp-sass'),
    concat       = require('gulp-concat'),
    autoPrefixer = require('gulp-autoprefixer'),
    minifyCss    = require('gulp-minify-css');

    gulp.task('sass', function() {
        gulp.src('./stylesheets.scss')
            .pipe(sass().on('error', gutil.log)) // sass.logError
            .pipe(autoprefixer('last 15 version'))
            .pipe(minifycss())
            .pipe(gulp.dest('./css'));
    });

    gulp.task('coffee', function() {
        gulp.src('./app.coffee')
            .pipe(coffee().on('error', gutil.log))
            .pipe(uglify())
            .pipe(gulp.dest('./js'));
    });

    gulp.task('watch', function() {
        gulp.watch(['./app.coffee'], ['coffee']);
        gulp.watch(['./stylesheets.scss'], ['sass']);
    });