Add esbuild support

web/lib/build.mjs

@@ -0,0 +1,29 @@
+import { build } from 'esbuild';
+import metaUrlPlugin from '@chialab/esbuild-plugin-meta-url';
+import inlineWorker from 'esbuild-plugin-inline-worker';
+import envPlugin from '@chialab/esbuild-plugin-env';
+
+let baseSettings = {
+    entryPoints: ['src/index.ts'],
+    bundle: true,
+    platform: "browser",
+    assetNames: "assets/[name]",
+    plugins: [
+        inlineWorker({
+            format: "cjs", platform: "browser",
+            target: 'es2022',
+            bundle: true,
+            assetNames: "assets/[name]",
+        }),
+        metaUrlPlugin(),
+        envPlugin()
+    ],
+};
+
+const start = async() => {
+    await build({...baseSettings, format: "esm", outfile: "dist/esbuild-esm/module.js",});
+    await build({...baseSettings, format: "cjs", outfile: "dist/esbuild-cjs/main.js",});
+    await build({...baseSettings, format: "iife", outfile: "dist/esbuild-iffe/main.js", globalName: "maplibre"});
+}
+
+start()

web/lib/src/index.ts

@@ -15,7 +15,10 @@ import {
     threads
 } from "wasm-feature-detect"
 
-const WEBGL = JSON.parse(process.env.WEBGL)
+// @ts-ignore
+import Worker from './pool.worker.js';
+
+const WEBGL = process.env.WEBGL === "true"
 
 const isWebGLSupported = () => {
     try {
@@ -96,7 +99,7 @@ const preventDefaultTouchActions = () => {
 /*
 let WORKER_COUNT = 4
 const createWorker = (id: number, memory: WebAssembly.Memory) => {
-    const worker = new Worker(new URL('./legacy_worker.ts', import.meta.url), {
+    const worker = new Worker(new URL('./legacy.worker.ts', import.meta.url), {
         type: "module",
     })
     worker.postMessage({type: "init", memory} as WebWorkerMessageType)
@@ -141,9 +144,7 @@ export const startMapLibre = async (wasmPath: string | undefined, workerPath: st
     const schedulerPtr = create_pool_scheduler(() => {
         return workerPath ? new Worker(workerPath, {
             type: 'module'
-        }) : new Worker(new URL("./pool_worker.ts", import.meta.url), {
-            type: 'module'
-        });
+        }) : Worker();
     })
 
     // setupLegacyWebWorker(schedulerPtr, memory)