gulpfile.js

var gulp = require('gulp'),
  watch = require('gulp-watch'),

// This will keeps pipes working after error event
  plumber = require('gulp-plumber'),

// linting
  jshint = require('gulp-jshint'),
  stylish = require('jshint-stylish'),

// Used in linting custom reporter
  map = require('map-stream'),
  events = require('events'),
  notify = require('gulp-notify'),
  emmitter = new events.EventEmitter(),
  path = require('path');

// Custom linting reporter used for error notify
var jsHintErrorReporter = map(function (file, cb) {
  if (!file.jshint.success) {
    file.jshint.results.forEach(function (err) {
      if (err) {
        //console.log(err);

        // Error message
        var msg = [
          path.basename(file.path),
          'Line: ' + err.error.line,
          'Reason: ' + err.error.reason
        ];

        // Emit this error event
        emmitter.emit('error', new Error(msg.join('\n')));

      }
    });

  }
  cb(null, file);
});


gulp.task('lint', function () {
  gulp.src([
      'app/components/**/*.js',
      '!app/components/app/translations.js'
    ])
    .pipe(watch())
    .pipe(plumber())
    .pipe(jshint('.jshintrc', {fail: true}))
    .pipe(jshint.reporter(stylish)) // Console output
    .pipe(jsHintErrorReporter) // If error pop up a notify alert
    .on('error', notify.onError(function (error) {
      return error.message;
    }));

});