gulpfile.js

var gulp = require('gulp'),
  uglify = require('gulp-uglify'),
  nodemon = require('gulp-nodemon'),
  minifyCSS = require('gulp-minify-css'),
  less = require('gulp-less'),
  prefix = require('gulp-autoprefixer');

var paths = {
  images: 'src/images/*',
  scripts: 'src/js/*.js',
  less: 'src/less/*.less'
};

/**/

gulp.task('scripts', function() {
  return gulp.src(paths.scripts)
    //.pipe(uglify())
    .pipe(gulp.dest('public/static/js'));
});


gulp.task('images', function() {
  return gulp.src(paths.images)
    // Pass in options to the task
    //.pipe(imagemin({optimizationLevel: 5}))
    .pipe(gulp.dest('public/static/images'));
});

gulp.task('less', function() {
  return gulp.src(paths.less)
    .pipe(less({
      keepSpecialComments: 0,
    }))
    .pipe(prefix({
      browsers: ['> 0%', 'last 2 versions', 'Firefox ESR', 'Opera 12.1'],
      cascade: true
    }))
    .pipe(gulp.dest('public/static/css'));
});

gulp.task('watch', function() {
  gulp.watch(paths.scripts, ['scripts']);
  gulp.watch(paths.images, ['images']);
  gulp.watch(paths.less, ['less']);
});

gulp.task('develop', function() {
  nodemon({
      script: 'server.js',
      ext: 'html js',
      ignore: ['src/**', 'public/**']
    })
    .on('restart', function() {
      console.log('restarted!');
    });
});


gulp.task('default', ['scripts', 'images', 'watch', 'less', 'develop'], function() {
  console.log("Gulp is starting...");
});