Gulp Shopware with browser-sync

Gulpfile.js

function basename(path) {
    return path.split('/').reverse()[0];
}

var gulp = require('gulp'),
    less = require('gulp-less'),
    sourcemaps = require('gulp-sourcemaps');
    concat = require('gulp-concat'),
    rename = require('gulp-rename'),
    path = require('path'),
    fs = require('fs'),
    watch = require('gulp-watch'),
    browserSync = require('browser-sync').create(),
    file = '../web/cache/config_1.json',
    config = JSON.parse(fs.readFileSync(file)),
    jsFiles = [],
    jsTargetFile = {},
    content = '',
    variables = {
        'font-directory': '"../../themes/Frontend/Responsive/frontend/_public/src/fonts"',
        'OpenSansPath': '"../../themes/Frontend/Responsive/frontend/_public/vendors/fonts/open-sans-fontface"'
    };

config['js'].forEach(function(item) {
    jsFiles.push('../' + item);
});
jsTargetFile['../' + config.jsTarget] = jsFiles;

config['less'].forEach(function(item) {
    content += '@import "../' + item + '";';
    content += "\n";
});
fs.writeFileSync('../web/cache/all.less', content);

for (var key in config.config) {
    variables[key] = config.config[key];
}

gulp.task('less', function() {
    return gulp.src('../web/cache/all.less')
        .pipe(sourcemaps.init())
        .pipe(less({
            modifyVars: variables,
            paths: [path.join(__dirname, 'less', 'includes')],
            relativeUrls: true
        }))
        .pipe(rename(basename(config.lessTarget)))
        .pipe(sourcemaps.write('../'))
        .pipe(gulp.dest('../web/cache'));
});

gulp.task('js', function() {
    return gulp.src(jsFiles)
        .pipe(concat(basename(config.jsTarget, {
            newLine: ';'
        })))
        .pipe(gulp.dest('../web/cache'));
});

gulp.task('default', ['less', 'js'], function() {
    gulp.watch(['../themes/Frontend/**/_public/src/js/*.js', '../engine/Shopware/Plugins/**/frontend/**/src/js/**/*.js'], ['js']);
    gulp.watch(['../engine/Shopware/Plugins/**/*.less', '../themes/Frontend/**/*.less'], ['less']);

    browserSync.init({
      proxy: "shopware.dev"
    });

    gulp.watch("../web/cache/*.css").on('change', browserSync.reload);
    gulp.watch("../web/cache/*.js").on('change', browserSync.reload);
});

package.json

{
  "name": "gulp-sw",
  "version": "1.0.0",
  "description": "",
  "main": "Gulpfile.js",
  "dependencies": {
    "browser-sync": "^2.18.13",
    "gulp": "^3.9.1",
    "gulp-concat": "^2.6.1",
    "gulp-less": "^3.3.2",
    "gulp-rename": "^1.2.2",
    "gulp-sourcemaps": "^2.6.1",
    "gulp-watch": "^4.3.11"
  },
  "devDependencies": {},
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "shyim",
  "license": "ISC"
}