XtraGulpFile

gulpfile.js

var gulp = require('gulp');
var jshint = require('gulp-jshint');
var stylish = require('jshint-stylish');
var concat = require('gulp-concat');
var rename = require('gulp-rename');
// var uglify = require('gulp-uglify');
var nodemon = require('gulp-nodemon');
var sass = require('gulp-sass');
var StreamQueue = require('streamqueue');

var fileLocations = {
  back: [
    "./xtra.js",
    "./config/**/*.js",
    "./controllers/**/*.js",
    "./models/**/*.js"
  ],
  front: [
    "./assets/ng/main.js",
    "./assets/ng/services.js",
    "./assets/ng/controllers.js",
    "./assets/ng/directives.js"
  ],
  cssLibs: ["./assets/csslib/*.css"]
};

// Sass and css libs
gulp.task('css', function () {
  var sassStream = gulp.src('./assets/*.scss').pipe(sass());
  var cssFiles = gulp.src('./assets/csslib/*.css');
  new StreamQueue({objectMode: true},
    cssFiles,
    sassStream
  ).pipe(concat('comp.css'))
    .pipe(gulp.dest('./public/css'));
});
// Lint JS
// Frontend
gulp.task('front-lint', function() {
  gulp.src(fileLocations.front)
    .pipe(jshint())
    .pipe(jshint.reporter(stylish));
});

var nodemonInstance;
// Backend
gulp.task('back-lint', ['runApp'], function() {
  gulp.src(fileLocations.back)
    .pipe(jshint({expr: false}))
    .pipe(jshint.reporter(stylish));
});

//Concat & Minify JS
gulp.task('ng-concat', function() {
  gulp.src(fileLocations.front)
    .pipe(concat('comp.js'))
    // .pipe(gulp.dest('./dist'))
    // .pipe(rename('all.min.js'))
    // .pipe(uglify())
    .pipe(gulp.dest('./public/js'));
});

// Nodemon
gulp.task('runApp', function() {
  nodemonInstance && nodemonInstance.emit('quit'); // restart node app
  nodemonInstance = nodemon({
    script: 'xtra.js',
    options: '--ignore *'
  });
});

// Default
gulp.task('default', ['front-lint', 'ng-concat', 'back-lint', 'css', 'runApp'], function() {
  // Watch JS Files
  gulp.watch(fileLocations.front, ['front-lint', 'ng-concat']);
  gulp.watch(fileLocations.back, ['back-lint']);
  gulp.watch("./assets/style.scss", ['css']);
});