fix: prevent esbuild to pick up the entire pakcage.json

Author: robertsLando

esbuild.js

@@ -2,6 +2,7 @@ const { build } = require('esbuild')
 const { polyfillNode } = require('esbuild-plugin-polyfill-node');
 const { rimraf } = require('rimraf')
 const fs = require('fs')
+const { version } = require('./package.json');
 
 const outdir = 'dist'
 
@@ -15,6 +16,9 @@ const options = {
     format: 'iife',
     platform: 'browser',
     globalName: 'mqtt',
+    define: {
+        'process.env.npm_package_version': JSON.stringify(version),
+    },
     sourcemap: false, // this can be enabled while debugging, if we decide to keep this enabled we should also ship the `src` folder to npm
     plugins: [
         polyfillNode({

src/lib/client.ts

@@ -40,9 +40,6 @@ import { TypedEventEmitter } from './TypedEmitter'
 import PingTimer from './PingTimer'
 import isBrowser, { isWebWorker } from './is-browser'
 
-// eslint-disable-next-line @typescript-eslint/no-var-requires
-const pkgVersion = require('../../package.json').version
-
 const setImmediate =
 	globalThis.setImmediate ||
 	(((...args: any[]) => {
@@ -492,7 +489,7 @@ export default class MqttClient extends TypedEventEmitter<MqttClientEventCallbac
 		this.log = this.options.log || _debug('mqttjs:client')
 		this.noop = this._noop.bind(this)
 
-		this.log('MqttClient :: version:', pkgVersion)
+		this.log('MqttClient :: version:', process.env.npm_package_version)
 
 		if (isWebWorker) {
 			this.log('MqttClient :: environment', 'webworker')