gulpfile.js

var gulp = require('gulp');
var $ = require('gulp-load-plugins')();

var uglify = require('gulp-uglify');
var rename = require('gulp-rename');
var browserify = require('browserify');
var source = require('vinyl-source-stream');
var streamify = require('gulp-streamify');
var shim = require('browserify-shim');
var karma = require('gulp-karma');
var Server = require('karma').Server;

var testFiles = [
  'crossfilter-async.js',
  'test/*.spec.js'
];

gulp.task('scripts', function () {
  return browserify('./src/crossfilter-async.js', { standalone: 'crossfilterAsync' })
    .transform(shim)
    .bundle()
    .pipe(source('crossfilter-async.js'))
    .pipe(gulp.dest('./'))
    .pipe(rename('crossfilter-async.min.js'))
    .pipe(streamify(uglify()))
    .pipe(gulp.dest('./'));
});

gulp.task('bump', function(){
  gulp.src(['./bower.json', './package.json'])
    .pipe(bump({type:'minor'}))
    .pipe(gulp.dest('./'));
});

// Watch Files For Changes
gulp.task('watch', function() {
    gulp.watch('./src/*.js', ['jshint', 'jscs', 'scripts']);
});

gulp.task('test', function (done) {
  new Server({
    configFile: __dirname + '/karma.conf.js',
    singleRun: true
  }, done).start();
});

gulp.task('testWatch', function (done) {
  new Server({
    configFile: __dirname + '/karma.conf.js'
  }, done).start();
});

//Lint JavaScript
gulp.task('jshint', function () {
  return gulp.src('src/*')
    .pipe($.jshint.extract()) // Extract JS from .html files
    .pipe($.jshint())
    .pipe($.jshint.reporter('jshint-stylish'));
});

//JavaScript Code Style
gulp.task('jscs', function () {
  return gulp.src([
      'src/*.js'
    ])
    .pipe($.jscs());
});

gulp.task('default', ['scripts', 'testWatch', 'watch']);
gulp.task('all', ['jshint', 'jscs', 'scripts', 'test']);