Update bundling mechanism for globals injection caching

This contains the required changes for the openhab-js injection caching inside the JS Scripting addon.

Signed-off-by: Florian Hotze <florianh_dev@icloud.com>

.npmignore

@@ -1,8 +1,10 @@
 # WARNING: Please keep in mind that npm disregards .gitignore when there is a .npmignore file!
 
+@openhab-globals.js
 .github
-.vscode
 .idea
+.markdownlint.yaml
+.vscode
 coverage
 DEPLOY.md
 doc
@@ -14,4 +16,4 @@ jest.config.js
 openhab-*.tgz
 out
 test
-.markdownlint.yaml
+

@openhab-globals.js

@@ -0,0 +1,8 @@
+// Injection of openhab-js namespaces as globals inside the addon
+
+(function (global) {
+    'use strict';
+    Object.assign(globalThis, require('./index'));
+    // Support legacy NodeJS libraries
+    globalThis.global = globalThis;
+})(this);

webpack.config.js

@@ -1,8 +1,13 @@
 const path = require('path');
 
 module.exports = {
-  entry: './index.js',
-  mode: 'development',
+  entry: './@openhab-globals.js',
+  mode: 'production',
+  performance: {
+    hints: false,
+    maxEntrypointSize: 512000,
+    maxAssetSize: 512000
+  },
   externals: [
     {
       '@runtime': {
@@ -45,9 +50,9 @@ module.exports = {
   ],
   output: {
     path: path.resolve(__dirname, 'dist'),
-    filename: 'openhab.js',
+    filename: '@openhab-globals.js',
     library: {
-      name: 'openhab',
+      name: '@openhab-globals',
       type: 'umd'
     },
     globalObject: 'this'