gulpfile.js

/* eslint-disable */
'use strict';
var gulp = require('gulp');
var tape = require('gulp-tape');
var browserify = require('browserify');
var watchify = require('watchify');
var babelify = require('babelify');
var rimraf = require('rimraf');
var source = require('vinyl-source-stream');
var _ = require('lodash');
var jsdoc = require('gulp-jsdoc3');
var tapSpec = require('tap-spec');
var uglify = require('gulp-uglify');
var buffer = require('vinyl-buffer');
var rename = require('gulp-rename');

var config = {
  entryFile: './src/index.js',
  outputDir: './dist/',
  outputFile: 'index.js',
  outputFileCompressed: 'index.min.js'
};

/**
 * Build bundle
 */

var bundler;
function getBundler() {
  if (!bundler) {
    bundler = watchify(browserify(config.entryFile, _.extend({ debug: true }, watchify.args)));
  }
  return bundler;
}

function bundle() {
  return getBundler()
    .transform(babelify)
    .bundle()
    .on('error', function(err) {
      console.error('Error: ' + err.message);
    })
    .pipe(source(config.outputFile))
    .pipe(buffer())
    .pipe(gulp.dest(config.outputDir))
    .pipe(uglify())
    .pipe(rename(config.outputFileCompressed))
    .pipe(gulp.dest(config.outputDir))
}

gulp.task('build-persistent', ['clean'], function() {
  return bundle();
});

gulp.task('build', ['build-persistent'], function() {

  process.exit(0);
});

/**
 * Cleanup directory
 */
gulp.task('clean', function(cb){
  rimraf(config.outputDir, cb);
});

/**
 * Watch changes
 */
gulp.task('watch', ['build-persistent'], function() {
  getBundler().on('update', function() {
    gulp.start('build-persistent');
  });
});

/**
 * Run tests
 */
gulp.task('test', function(){
  return gulp.src('tests/**/*.js')
    .pipe(tape({
      reporter: tapSpec()
    }));
});

/**
 * Build documentation
 */
gulp.task('docs', function (cb) {
  var jsdoc_config = require('./jsdoc.json');
  gulp.src(['README.md', './src/**/*.js'], { read: false })
  .pipe(jsdoc(jsdoc_config,cb));
});