gulpfile.js

/**
 * 
 **/
// require modules {
var gulp         = require('gulp');
var concat       = require('gulp-concat');
var gutil        = require('gulp-util');
var sass         = require('gulp-sass');
var plumber      = require('gulp-plumber');
var header       = require('gulp-header');
var autoprefixer = require('gulp-autoprefixer');
var minfiycss    = require('gulp-minify-css');
var print = require('gulp-print');
var flatten = require('gulp-flatten');
var uglify       = require('gulp-uglify');
var gzip         = require('gulp-gzip');
var livereload   = require('gulp-livereload');
var argv         = require('yargs').argv; // for args parsing
var spawn        = require('child_process').spawn;
// }

gulp.task('sass', function () {
	gulp.src('./sass/style.scss')
	.pipe(plumber())
	.pipe(sass().on('error', gutil.log))
	.pipe(autoprefixer('last 2 version', 'safari 5', 'ie 8', 'ie 9', 'opera 12.1', 'ios 6', 'android 4'))
	.pipe(header('/* Theme Name: nxc */'))
	.pipe(gulp.dest('./'))
	;
})

gulp.task('sass:oldie', function () {
	gulp.src('sass/old-ie.scss')
	.pipe(plumber())
	.pipe(sass())
	.pipe(autoprefixer('last 2 version', 'ie 6', 'ie 7', 'ie 8', 'ie 9'))
	.pipe(gulp.dest('./'))
	;
});

gulp.task('scripts', function () {
	gulp.src([
		'js/vendor/prism.js',
		'js/vendor/jquery/dist/jquery.min.js',
		'js/vendor/fancybox/source/jquery.fancybox.pack.js',
		'js/vendor/sidr/jquery.sidr.min.js',

		'js/base.js'
	])
	.pipe(plumber())
	.pipe(concat('bundle.js'))
	.pipe(uglify())
	.pipe(gulp.dest('./'));
});

gulp.task('ps-assets', function (e) {
	gulp.src([ 'images/*-assets/*' ])
	.pipe(print())
	.pipe(flatten())
	.pipe(gulp.dest("images/"))
});

gulp.task('watch', function () {
	livereload.listen();

	gulp.watch('./sass/**/*.scss', ['styles']);
	gulp.watch('./style.css', function (file) {
		livereload.changed(file.path);
	});
	gulp.watch('./js/**/*.js', ['scripts']).on('change', livereload.changed);
	gulp.watch('./**/*.php').on('change', livereload.changed);
	gulp.watch('./images/*-assets/*', ['ps-assets']).on('change', livereload.changed);
});

gulp.task('auto-reload', function() {
	var p;

	gulp.watch('gulpfile.js', spawnChildren);
	spawnChildren();

	function spawnChildren(e) {
		if (p) {
			p.kill();
		}

		p = spawn('gulp', [argv.task], {stdio: 'inherit'});
	}
});

gulp.task('styles', ['sass', 'sass:oldie']);
gulp.task('build', ['scripts', 'styles', 'ps-assets']);
gulp.task('default', ['build', 'watch']);