Enforce node: schema for builtins, import extensions

scripts/esbuild.js

@@ -2,11 +2,13 @@
 // SPDX-License-Identifier: AGPL-3.0-only
 
 const esbuild = require('esbuild');
-const path = require('path');
+const path = require('node:path');
+const fs = require('node:fs');
 const fastGlob = require('fast-glob');
 
 const ROOT_DIR = path.join(__dirname, '..');
 const BUNDLES_DIR = 'bundles';
+const NODE_MODULES_DIR = path.join(ROOT_DIR, 'node_modules');
 
 const watch = process.argv.some(argv => argv === '-w' || argv === '--watch');
 const isProd = process.argv.some(argv => argv === '-prod' || argv === '--prod');
@@ -22,6 +24,33 @@ const nodeDefaults = {
   // See: https://github.com/evanw/esbuild/issues/1147
   keepNames: true,
   logLevel: 'info',
+  plugins: [
+    {
+      name: 'resolve-ts',
+      setup(b) {
+        b.onResolve({ filter: /\.js$/ }, args => {
+          if (!args.path.startsWith('.')) {
+            return undefined;
+          }
+
+          const targetPath = path.join(args.resolveDir, args.path);
+          if (targetPath.startsWith(NODE_MODULES_DIR)) {
+            return undefined;
+          }
+          const tsPath = targetPath.replace(/\.js$/, '.ts');
+          const tsxPath = targetPath.replace(/\.js$/, '.tsx');
+          if (fs.existsSync(tsPath)) {
+            return { path: tsPath };
+          }
+          if (fs.existsSync(tsxPath)) {
+            return { path: tsxPath };
+          }
+
+          return undefined;
+        });
+      },
+    },
+  ],
 };
 
 const bundleDefaults = {
@@ -61,8 +90,11 @@ const bundleDefaults = {
     'moment',
     'quill',
 
+    // Imported, but not used in production builds
+    'mocha',
+
     // Uses fast-glob and dynamic requires
-    './preload_test',
+    './preload_test.js',
   ],
 };
 
@@ -119,7 +151,7 @@ async function main() {
       entryPoints: [
         'preload.wrapper.ts',
         ...fastGlob
-          .sync('{app,ts}/**/*.{ts,tsx}', {
+          .sync('{app,ts,build}/**/*.{ts,tsx}', {
             onlyFiles: true,
             cwd: ROOT_DIR,
           })