text: var gulp = require('gulp');
  var sass = require('gulp-sass');
  var browserSync = require('browser-sync').create();
  var header = require('gulp-header');
  var cleanCSS = require('gulp-clean-css');
  var rename = require("gulp-rename");
  var uglify = require('gulp-uglify');
  var sitemap = require('gulp-sitemap');
  var pkg = require('./package.json');
  var modernizr = require('gulp-modernizr');
  
  // used for webp detection for CSS
  gulp.task('modernizr', function() {
      return gulp.src('./js/*.js')
          .pipe(modernizr('modernizr.min.js', {
              "crawl": false,
              "customTests": [],
              "tests": [
                  "webp"
              ],
              "options": [
                  "setClasses"
              ]
          }))
          .pipe(uglify())
          .pipe(gulp.dest('js/'))
  });
  
  // Set the banner content
  var banner = ['/*!\n',
      ' * Yarraville Picture Framing - <%= pkg.title %> v<%= pkg.version %> (<%= pkg.homepage %>)\n',
      ' * Copyright 2013-' + (new Date()).getFullYear(), ' <%= pkg.author %>\n',
      ' * Licensed under <%= pkg.license %> (https://github.com/BlackrockDigital/<%= pkg.name %>/blob/master/LICENSE)\n',
      ' */\n',
      ''
  ].join('');
  
  // Compiles SCSS files from /scss into /css
  gulp.task('sass', function() {
      return gulp.src('scss/creative.scss')
          .pipe(sass())
          .pipe(header(banner, { pkg: pkg }))
          .pipe(gulp.dest('css'))
          .pipe(browserSync.reload({
              stream: true
          }))
  });
  
  // Minify compiled CSS
  gulp.task('minify-css', ['sass'], function() {
      return gulp.src('css/creative.css')
          .pipe(cleanCSS({ compatibility: 'ie8' }))
          .pipe(rename({ suffix: '.min' }))
          .pipe(gulp.dest('css'))
          .pipe(browserSync.reload({
              stream: true
          }))
  });
  
  // Minify custom JS
  gulp.task('minify-js', function() {
      return gulp.src('js/creative.js')
          .pipe(uglify())
          .pipe(header(banner, { pkg: pkg }))
          .pipe(rename({ suffix: '.min' }))
          .pipe(gulp.dest('js'))
          .pipe(browserSync.reload({
              stream: true
          }))
  });
  
  // Copy vendor files from /node_modules into /vendor
  // NOTE: requires `npm install` before running!
  gulp.task('copy', function() {
      gulp.src(['node_modules/bootstrap/dist/**/*', '!**/npm.js', '!**/bootstrap-theme.*', '!**/*.map'])
          .pipe(gulp.dest('vendor/bootstrap'))
  
      gulp.src(['node_modules/jquery/dist/jquery.js', 'node_modules/jquery/dist/jquery.min.js'])
          .pipe(gulp.dest('vendor/jquery'))
  
      gulp.src(['node_modules/magnific-popup/dist/*'])
          .pipe(gulp.dest('vendor/magnific-popup'))
  
      gulp.src(['node_modules/scrollreveal/dist/*.js'])
          .pipe(gulp.dest('vendor/scrollreveal'))
  
      gulp.src(['node_modules/tether/dist/js/*.js'])
          .pipe(gulp.dest('vendor/tether'))
  
      gulp.src(['node_modules/jquery.easing/*.js'])
          .pipe(gulp.dest('vendor/jquery-easing'))
  
      gulp.src([
              'node_modules/font-awesome/**',
              '!node_modules/font-awesome/**/*.map',
              '!node_modules/font-awesome/.npmignore',
              '!node_modules/font-awesome/*.txt',
              '!node_modules/font-awesome/*.md',
              '!node_modules/font-awesome/*.json'
          ])
          .pipe(gulp.dest('vendor/font-awesome'))
  })
  
  // Generate sitemap
  gulp.task('sitemap', function () {
      gulp.src('*.html', {
              read: false,
              lastmod: function(file) {
                  var cmd = 'git log -1 --format=%cI "' + file.relative + '"';
                  return execSync(cmd, {
                      cwd: file.base
                  }).toString().trim();
              }
          })
          .pipe(sitemap({
              siteUrl: 'https://yarravillepictureframing.com.au'
          }))
          .pipe(gulp.dest('./'));
  });
  
  // Default task
  gulp.task('default', ['modernizr', 'sass', 'minify-css', 'minify-js', 'copy', 'sitemap']);
  
  // Configure the browserSync task
  gulp.task('browserSync', function() {
      browserSync.init({
          server: {
              baseDir: ''
          },
      })
  })
  
  // Dev task with browserSync
  gulp.task('dev', ['modernizr', 'sass', 'minify-css', 'minify-js'], function() {
      browserSync.init({
          open: false,
          server: {
              baseDir: './',
              index: "index.html"
          }
      });
      gulp.watch('scss/*.scss', ['sass']);
      gulp.watch('css/*.css', ['minify-css']);
      gulp.watch('js/*.js', ['minify-js']);
      // Reloads the browser whenever HTML or JS files change
      gulp.watch('*.html', browserSync.reload);
      gulp.watch('js/**/*.js', browserSync.reload);
  });
  