gulpfile.js

var gulp = require('gulp'),
		util = require('gulp-util'),
		del = require('del'),
		concat = require('gulp-concat'),
		sourcemaps = require('gulp-sourcemaps'),
		changed = require('gulp-changed'),
		cached = require('gulp-cached'),
		remember = require('gulp-remember'),
		newer = require('gulp-newer'),
		rev = require('gulp-rev'),
		sync = require('browser-sync').create(),
		uglify = require('gulp-uglify'),
		jshint = require('gulp-jshint'),
		prefix = require('gulp-autoprefixer'),
		minifycss = require('gulp-minify-css'),
		imagemin = require('gulp-imagemin'),
		pngquant = require('imagemin-pngquant');

var src = {
	markup: ['./views/**/*.html'],
	scripts: ['./assets/js/**/*.js'],
	styles: ['./assets/css/**/*.css'],
	images: './assets/img/**/*',
	fav: ['./assets/*.ico', './assets/*.png'],
	other: ['./assets/*.xml', './assets/*.txt'],
	modernizr: './bower_components/modernizer/modernizr.js',
	jquery: './bower_components/jquery/dist/jquery.min.js',
	normalize: './bower_components/normalize-css/normalize.css'
};

var dist = {
	scripts: './public/js',
	styles: './public/css',
	images: './public/img',
	root: './public'
}

gulp.task('clean', function() {
	return del(dist.root);
});

gulp.task('markup', function() {
	return gulp.src(src.markup)
		.pipe(gulp.dest(dist.root));
});

gulp.task('modernizr', function() {
	return gulp.src(src.modernizr)
		.pipe(uglify())
		.pipe(gulp.dest(dist.scripts));
});

gulp.task('jquery', function() {
	return gulp.src(src.jquery)
		.pipe(gulp.dest(dist.scripts));
});

gulp.task('scripts', function() {
	return gulp.src(src.scripts)
		//.pipe(changed('public'))
		.pipe(jshint())
		.pipe(jshint.reporter('jshint-stylish'))
		.pipe(jshint.reporter('fail'))
		//.pipe(sourcemaps.init())
			.pipe(uglify())
			.pipe(concat('scripts.js'))
			//.pipe(util.env.type === 'production' ? uglify() : util.noop())
		//.pipe(sourcemaps.write())
		.pipe(gulp.dest(dist.scripts));
});

gulp.task('normalize', function() {
	return gulp.src(src.normalize)
		.pipe(minifycss())
		.pipe(gulp.dest(dist.styles));
})

gulp.task('styles', function() {
	return gulp.src(src.styles)
		//.pipe(sourcemaps.init())
			.pipe(minifycss({compatibility: 'ie8'}))
			.pipe(concat('styles.css'))
			.pipe(prefix({
				browsers: ['last 2 version'],
				cascade: false
			}))
		//.pipe(sourcemaps.write())
		.pipe(gulp.dest(dist.styles));
});

gulp.task('images', function() {
	return gulp.src(src.images)
		.pipe(imagemin({
			optimizationLevel: 5,
			progressive: true,
			interlaced: true,
			multipass: true,
			svgoPlugins: [{removeViewBox: false}],
			use: [pngquant()]
		}))
		.pipe(gulp.dest(dist.images));
});

gulp.task('fav', function() {
	return gulp.src(src.fav)
		.pipe(imagemin({
			optimizationLevel: 5,
			use: [pngquant()]
		}))
		.pipe(gulp.dest(dist.root));
});

gulp.task('other', function() {
	return gulp.src(src.other)
		.pipe(gulp.dest(dist.root));
});

gulp.task('markup-watch', ['markup'], sync.reload);
gulp.task('scripts-watch', ['scripts'], sync.reload);
gulp.task('styles-watch', ['styles'], sync.reload);
gulp.task('images-watch', ['images'], sync.reload);
gulp.task('fav-watch', ['fav'], sync.reload);
gulp.task('other-watch', ['other'], sync.reload);

gulp.task('build', ['clean', 'markup', 'modernizr', 'jquery', 'scripts', 'normalize', 'styles', 'images', 'fav', 'other']);

gulp.task('serve', ['build'], function() {
	sync.init({
		notify: false,
		port: 8080,
		server: {
			baseDir: dist.root
		}
	});
	/*
	gulp.watch(src.markup, ['markup-watch']);
	gulp.watch(src.scripts, ['scripts-watch']);
	gulp.watch(src.styles, ['styles-watch']);
	gulp.watch(src.images, ['images-watch']);
	gulp.watch(src.fav, ['fav-watch']);
	gulp.watch(src.other, ['other-watch']);
	*/
	gulp.watch(src.markup).on('change', sync.reload);
	gulp.watch(src.scripts).on('change', sync.reload);
	gulp.watch(src.styles).on('change', sync.reload);
	gulp.watch(src.images).on('change', sync.reload);
	gulp.watch(src.fav).on('change', sync.reload);
	gulp.watch(src.other).on('change', sync.reload);
});

gulp.task('default', ['serve']);