@nurun-sf/spark-component/tasks/cover-instrument.js

A tool for building spark components

'use strict';

const browserify = require('browserify');
const browserifyBabelIstanbul = require('browserify-babel-istanbul');
const globalShim = require('browserify-global-shim');
const babelify = require('babelify');
const watchify = require('watchify');
const isparta = require('isparta');
const source = require('vinyl-source-stream');
const excludeExternalDeps = require('../lib/exclude-external-deps');
const config = require('../lib/config');

const DEPENDENCIES = Object.keys(config.dependencies);
const GLOBAL_SHIM_MAP = DEPENDENCIES.reduce(function (obj, name) {
  obj[name] = config.dependencies[name].root;
  return obj;
}, {});

const GLOBAL_SHIM = globalShim.configure(GLOBAL_SHIM_MAP);

module.exports = function (gulp) {

  var stream;

  function bundle() {
    return stream
      .bundle()
      .pipe(source(config.filename.instrumented))
      .pipe(gulp.dest(config.dist));
  }

  stream = browserify({
    cache: {},
    packageCache: {},
    entries: ['./' + config.filename.source],
    standalone: config.className,
  });

  if (config.watch) {
    stream = watchify(stream);
  }

  excludeExternalDeps(stream, DEPENDENCIES)
    .transform(babelify, config.babel)
    .transform(browserifyBabelIstanbul({
      instrumentor: isparta,
      includeUntested: true,
    }))
    .transform(GLOBAL_SHIM)
    .on('update', bundle);

  return bundle;
};