gulpfile

var gulp           = require('gulp'),
        gutil          = require('gulp-util' ),
        sass           = require('gulp-sass'),
        browserSync    = require('browser-sync'),
        concat         = require('gulp-concat'),
        uglify         = require('gulp-uglify'),
        cleanCSS       = require('gulp-clean-css'),
        rename         = require('gulp-rename'),
        del            = require('del'),
        imagemin       = require('gulp-imagemin'),
        cache          = require('gulp-cache'),
        autoprefixer   = require('gulp-autoprefixer'),
        ftp            = require('vinyl-ftp'),
        notify         = require("gulp-notify");

// Скрипты проекта
gulp.task('delnode', function() { return del.sync('node_modules'); });

gulp.task('common-js', function() {
    return gulp.src([
        'app/js/common.js',
        ])
    .pipe(concat('common.min.js'))
    .pipe(uglify())
    .pipe(gulp.dest('app/js'));
});

gulp.task('scripts', ['common-js'], function() {
    return gulp.src([
        'app/libs/jquery/dist/jquery.min.js',
        'app/libs/owl.carousel/owl.carousel.min.js',
        'app/libs/slick-nav/dist/jquery.slicknav.js',
        'app/libs/magnific-popup/dist/jquery.magnific-popup.min.js',
        'app/libs/fotorama/fotorama.js',
        'app/libs/equalHeights/equalheights.js',
        'app/libs/blankshield/blankshield.min.js',
        'app/js/common.min.js', // Всегда в конце
        ])
    .pipe(concat('scripts.min.js'))
    // .pipe(uglify()) // Минимизировать весь js (на выбор)
    .pipe(gulp.dest('app/js'))
    .pipe(browserSync.reload({stream: true}));
});

gulp.task('browser-sync', function() {
    browserSync({
        server: {
            baseDir: 'app'
        },
        notify: false,
        // tunnel: true,
        // tunnel: "projectmane", //Demonstration page: http://projectmane.localtunnel.me
    });
});

gulp.task('sass', function() {
    return gulp.src('app/sass/**/*.sass')
    .pipe(sass().on("error", notify.onError()))
    .pipe(rename({suffix: '.min', prefix : ''}))
    .pipe(autoprefixer(['last 15 versions']))
    .pipe(cleanCSS())
    .pipe(gulp.dest('app/css'))
    .pipe(browserSync.reload({stream: true}));
});

gulp.task('watch', ['sass', 'scripts', 'browser-sync'], function() {
    gulp.watch('app/sass/**/*.sass', ['sass']);
    gulp.watch(['libs/**/*.js', 'app/js/common.js'], ['scripts']);
    gulp.watch('app/*.html', browserSync.reload);
});

gulp.task('imagemin', function() {
    return gulp.src('app/img/**/*')
    .pipe(cache(imagemin()))
    .pipe(gulp.dest('../assets/dist/img'));
});

gulp.task('build', ['removedist', 'imagemin', 'sass', 'scripts'], function() {

    /*var buildFiles = gulp.src([
        'app/*.html',
        'app/.htaccess',
        ]).pipe(gulp.dest('../assets/dist'));*/

    var buildCss = gulp.src([
        'app/css/main.min.css',
        'app/css/header.min.css'
        ]).pipe(gulp.dest('../assets/dist/css'));

    var buildJs = gulp.src([
        'app/js/scripts.min.js',
        ]).pipe(gulp.dest('../assets/dist/js'));

    var buildFonts = gulp.src([
        'app/fonts/**/*',
        ]).pipe(gulp.dest('../assets/dist/fonts'));

});

gulp.task('deploy', function() {

    var conn = ftp.create({
        host:      'hostname.com',
        user:      'username',
        password:  'userpassword',
        parallel:  10,
        log: gutil.log
    });

    var globs = [
    '../assets/dist/**',
    '../assets/dist/.htaccess',
    ];
    return gulp.src(globs, {buffer: false})
    .pipe(conn.dest('/path/to/folder/on/server'));

});

gulp.task('removedist', function() { return del.sync('dist'); });
gulp.task('clearcache', function () { return cache.clearAll(); });

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