text: var gulp = require('gulp'),
      concat = require('gulp-concat'),
      minifyCSS = require('gulp-minify-css'),
      rev = require('gulp-rev'),
      uglify = require('gulp-uglify');
  
  gulp.task('default', function() {
      gulp.src(['public/css/bootstrap.css', 'public/css/nprogress.css', 'public/css/site.css'])
          .pipe(concat('app.min.css'))
          .pipe(minifyCSS())
          .pipe(rev())
          .pipe(gulp.dest('public/css/'));
  
      gulp.src(['./public/js/jquery-2.1.4.min.js', './public/js/bootstrap.min.js', './public/js/nprogress.js', './public/js/site.js'])
          .pipe(concat('app.min.js'))
          .pipe(uglify())
          .pipe(rev())
          .pipe(gulp.dest('./public/js/'));
  });
  