build(bin): setup binary build (to production) script

build/bin.js

@@ -0,0 +1,46 @@
+#!/usr/bin/env node
+
+'use strict'
+
+process.env.NODE_ENV = 'production'
+
+// Node.js modules
+const path = require('path')
+
+// build bundle with Webpack
+const webpack = require('webpack')
+const webpackConfig = require(path.join(process.cwd(), 'webpack.config'))
+
+// additional Webpack plugins
+const { CleanWebpackPlugin } = require('clean-webpack-plugin')
+if (!webpackConfig.plugins) {
+  webpackConfig.plugins = []
+}
+webpackConfig.plugins.push(
+  new CleanWebpackPlugin()
+)
+
+const fatalError = err => {
+  if (err) {
+    console.error(err)
+  }
+  // exit with failure
+  process.exit(1)
+}
+
+webpack(webpackConfig, (err, stats) => {
+  // console.log(stats)
+  if (err) {
+    fatalError(err)
+  }
+
+  // check and handle webpack errors and warnings
+  const info = stats.toJson()
+  if (stats.hasErrors()) {
+    let err = info.errors
+    fatalError(err)
+  }
+  if (stats.hasWarnings()) {
+    console.warn(info.warnings)
+  }
+})