ld31-space-diggers/gulpfile.js

// npm install -g gulp
// npm install --save-dev browser-sync

var gulp = require('gulp');

var coffee = require('gulp-coffee');
var concat = require('gulp-concat');
var uglify = require('gulp-uglify');
var sourcemaps = require('gulp-sourcemaps');

var browserSync = require('browser-sync');
var reload = browserSync.reload;


gulp.task('server', function() {
    browserSync({
        server: {
            baseDir: 'public'
        }
    });
});

gulp.task('compile', function() {
    return gulp.src(['src/entities/*.coffee', 'src/tools.coffee', 'src/main.coffee', 'src/game.coffee', 'src/hud.coffee'])
        .pipe(sourcemaps.init())
        .pipe(coffee({bare: true}))
        .pipe(concat('app.js'))
        .pipe(sourcemaps.write())
        .pipe(gulp.dest('public'));
});

gulp.task('default', ['server'], function() {
    gulp.watch(['src/**/*.coffee'], ['compile']);
    gulp.watch(['*.html', 'styles.css', 'app.js', 'images/*'], {cwd: 'public'}, reload);
});