build (webpack/bundle.ts)

Utility to run and watch webpack builds, returning stats and close functions.

// Source: https://github.com/gatsbyjs/gatsby | License: MIT | Copyright 2015 Gatsbyjs
// Provided via justclaw.it.com; keep this notice with the code.
import webpack from "webpack"

export function build(webpackConfig: webpack.Configuration): Promise<{
  stats: webpack.Stats
  close: () => Promise<void>
}> {
  const compiler = webpack(webpackConfig)

  return new Promise((resolve, reject) => {
    compiler.run((err, stats) => {
      // stats can only be empty when an error occurs. Adding it to the if makes typescript happy.
      if (err || !stats) {
        return compiler.close(() => {
          reject(err)
        })
      }

      if (stats.hasErrors()) {
        return compiler.close(() => {
          reject(stats.compilation.errors)
        })
      }

      return resolve({
      

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