Gulp

gulp.js

// -- include gulp
var gulp = require('gulp');

// -- include plug-ins
var jshint = require('gulp-jshint');
var changed = require('gulp-changed');
var imagemin = require('gulp-imagemin');
var concat = require('gulp-concat');
var stripDebug = require('gulp-strip-debug');
var uglify = require('gulp-uglify');
var autoprefix = require('gulp-autoprefixer');
var minifyCSS = require('gulp-minify-css');
var gutil = require('gulp-util');
var clean = require('gulp-clean');
var watch = require('gulp-watch');
var filesize = require('gulp-filesize');
var rename = require('gulp-rename');

// -- mantendo ambiente limpo
gulp.task('clean', function () {
  return gulp.src(['tmp', /*'build'*/], {read: false})
  .pipe(clean());
});

// -- Princpais bibliotecas, seperado dos scripts principais
gulp.task('lib', function() {
  return gulp.src('./src/javascripts/lib/*.js')
  .pipe(concat('lib.js'))
  .pipe(gulp.dest('build/javascripts/lib'))
  .pipe(filesize())
  .pipe(uglify())
  .pipe(rename('lib.min.js'))
  .pipe(gulp.dest('build/javascripts/lib/'))
  .pipe(filesize())
  .on('error', gutil.log)
});

// -- JS hint task
gulp.task('jshint', function() {
  gulp.src('./src/javascripts/*.js')
    .pipe(jshint())
    .pipe(jshint.reporter('default'));
});

// minify new images
gulp.task('imagemin', function() {
  var imgSrc = './src/images/**/*',
      imgDst = './build/images';

  gulp.src(imgSrc)
    .pipe(changed(imgDst))
    .pipe(imagemin())
    .pipe(gulp.dest(imgDst));
});

// JS concat, strip debugging and minify
gulp.task('scripts', function() {
  gulp.src(['./src/javascripts/*.js'])
    .pipe(concat('javascripts.js'))
    .pipe(stripDebug())
    .pipe(uglify())
    .pipe(gulp.dest('./build/javascripts/'));
});

// CSS concat, auto-prefix and minify
gulp.task('styles', function() {
  gulp.src(['./src/stylesheet/vendor/*.css','./src/stylesheet/*.css'])
    .pipe(concat('stylesheet.css'))
    .pipe(autoprefix('last 2 versions'))
    .pipe(minifyCSS({keepSpecialComments: 0}))
    .pipe(gulp.dest('./build/stylesheet/'));
});

//-- default gulp task
gulp.task('default', function () {
  // var server = ['jasmine', 'embed'];
  var client = ['clean', 'imagemin', 'scripts',
  'styles', 'lib'];

  //-- watch for JS changes
  gulp.watch('./src/javascripts/*.js', client);

  //-- watch for CSS changes
  gulp.watch('./src/stylesheet/*.css', client);

  //-- watch for IMAGES changes
  gulp.watch('./src/images/**/*', client);
});