Ignore demo when ESP_PROD is in env

_build_js.sh

@@ -7,28 +7,3 @@ php ./dump_js_lang.php
 
 echo 'Processing JS...'
 npm run webpack
-exit
-
-if [[ $ESP_PROD ]]; then
-	smarg=
-	demofile=
-else
-	smarg=--source-maps
-	demofile=js/demo.js
-fi
-
-npm run babel -- -o "out/js/app.$FRONT_END_HASH.js" ${smarg} js/lib \
-    js/lib/chibi.js \
-    js/lib/polyfills.js \
-    js/event_emitter.js \
-    js/utils.js \
-    js/modal.js \
-    js/notif.js \
-    js/appcommon.js \
-    $demofile \
-    js/lang.js \
-    js/wifi.js \
-    js/term_* \
-    js/debug_screen.js \
-    js/soft_keyboard.js \
-    js/term.js

webpack.config.js

@@ -1,8 +1,20 @@
+const webpack = require('webpack')
 const { execSync } = require('child_process')
 const path = require('path')
 
 let hash = execSync('git rev-parse --short HEAD').toString().trim()
 
+let plugins = []
+let devtool = 'source-map'
+
+if (process.env.ESP_PROD) {
+  // ignore demo
+  plugins.push(new webpack.IgnorePlugin(/\.\/demo(?:\.js)?$/))
+
+  // no source maps
+  devtool = ''
+}
+
 module.exports = {
   entry: './js',
   output: {
@@ -17,5 +29,6 @@ module.exports = {
       }
     ]
   },
-  devtool: 'source-map'
+  devtool,
+  plugins
 }