Gulpfile.js

var gulp = require('gulp'),
  del = require('del'),
  vinylPaths = require('vinyl-paths'),
  $ = require('gulp-load-plugins')();

var pkg = require('./package.json');
var banner = [ '/**',
  ' * <%= pkg.title %> v<%= pkg.version %> - <%= pkg.description %>',
  ' * ------------------------',
  ' * @link <%= pkg.homepage %>',
  ' * @license <%= pkg.license %>',
  ' * @author <%= pkg.author.name %>',
  ' *         Twitter : @AlexandreDemode',
  ' *         Website : <%= pkg.author.url.replace("http://", "") %>',
  ' */',
  '\n' ].join('\n');
var bannerLight = [ '/** <%= pkg.title %> v<%= pkg.version %> - <%= pkg.description %>',
  ' - <%= pkg.homepage.replace("http://", "") %>',
  ' - License <%= pkg.license %>',
  ' - Author : <%= pkg.author.name %>',
  ' / <%= pkg.author.url.replace("http://", "") %>',
  ' */',
  '\n' ].join('');

gulp.task('clean', function () {
  return gulp.src([ '*.min.js' ])
    .pipe(vinylPaths(del));
});

gulp.task('test', function () {
  return gulp.src([ 'src/cookies-eu-banner.js' ])
    .pipe($.jshint())
    .pipe($.jshint.reporter('jshint-stylish'));
});

gulp.task('scripts', [ 'test' ], function () {
  return gulp.src([ 'src/cookies-eu-banner.js' ])
    .pipe($.header(banner, { pkg: pkg }))
    .pipe($.concat('cookies-eu-banner.js', { newLine: '\r\n\r\n' }))
    .pipe(gulp.dest('dist/'))
    .pipe($.size({ title: 'cookies-eu-banner.js' }))
    .pipe($.rename({ suffix: ".min" }))
    .pipe($.uglify())
    .pipe($.header(bannerLight, { pkg: pkg }))
    .pipe(gulp.dest('dist/'))
    .pipe($.size({ title: 'cookies-eu-banner.min.js' }));
});

gulp.task('watch', function () {
  gulp.watch([ 'src/cookies-eu-banner.js' ], [ 'scripts' ]);

  gulp.watch([ 'dist/**' ], function (file) {
    $.livereload.changed(file);
  });

  $.livereload.listen();
});

gulp.task('build', [ 'scripts' ]);

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