gulpfile.js

/**
 * Created by jakub on 25.1.2017.
 */

    /**/

var gulp = require('gulp');
var livereload = require('gulp-livereload')
var uglify = require('gulp-uglifyjs');
var sass = require('gulp-sass');
var autoprefixer = require('gulp-autoprefixer');
var sourcemaps = require('gulp-sourcemaps');
var imagemin = require('gulp-imagemin');
var pngquant = require('imagemin-pngquant');
var server = require('gulp-server-livereload');




gulp.task('imagemin', function () {
    return gulp.src('./images/*')
        .pipe(imagemin({
            progressive: true,
            svgoPlugins: [{removeViewBox: false}],
            use: [pngquant()]
        }))
        .pipe(gulp.dest('./images'));
});


gulp.task('sass', function () {
    gulp.src('./sass/**/*.scss')
        .pipe(sourcemaps.init())
        .pipe(sass({outputStyle: 'compressed'}).on('error', sass.logError))
        .pipe(autoprefixer('last 2 version', 'safari 5', 'ie 7', 'ie 8', 'ie 9', 'opera 12.1', 'ios 6', 'android 4'))
        .pipe(sourcemaps.write('./'))
        .pipe(gulp.dest('./css'));
});


gulp.task('uglify', function() {
    gulp.src('./lib/*.js')
        .pipe(uglify('main.js'))
        .pipe(gulp.dest('./js'))
});

gulp.task('watch', function(){
    livereload.listen();
    gulp.watch('./sass/*.scss', ['sass']);
    gulp.watch('./lib/*.js', ['uglify']);
});

gulp.task('webserver', function() {
  gulp.watch('./sass/*.scss', ['sass']);
  gulp.watch('./lib/*.js', ['uglify']);
  gulp.watch(['./css/*.css', './templates/**/*.twig', './js/*.js'], function (files){
    livereload.changed(files)
  });
  gulp.src('')
    .pipe(server({
      livereload: true,
      open: true,
      defaultFile: 'index.html'
    }));
});