From c79433c9de3fd8fcffe087c505086bfdddd94a5d Mon Sep 17 00:00:00 2001
From: Matt Bierner <12821956+mjbvz@users.noreply.github.com>
Date: Thu, 30 Oct 2025 08:57:26 -0700
Subject: [PATCH] Fix import and use clearer file name

---
 build/lib/optimize.js                       |  4 +--
 build/lib/optimize.ts                       |  2 +-
 build/lib/tsb/transpiler.js                 |  4 +--
 build/lib/tsb/transpiler.ts                 |  2 +-
 build/lib/tsconfigUtils.js                  | 28 +++++++++++++++++++++
 build/lib/{tsconfig.ts => tsconfigUtils.ts} |  2 +-
 6 files changed, 35 insertions(+), 7 deletions(-)
 create mode 100644 build/lib/tsconfigUtils.js
 rename build/lib/{tsconfig.ts => tsconfigUtils.ts} (96%)

diff --git a/build/lib/optimize.js b/build/lib/optimize.js
index 060c1692918..2ba72a97159 100644
--- a/build/lib/optimize.js
+++ b/build/lib/optimize.js
@@ -54,7 +54,7 @@ const esbuild_1 = __importDefault(require("esbuild"));
 const gulp_sourcemaps_1 = __importDefault(require("gulp-sourcemaps"));
 const fancy_log_1 = __importDefault(require("fancy-log"));
 const ansi_colors_1 = __importDefault(require("ansi-colors"));
-const tsconfig_1 = require("./tsconfig");
+const tsconfigUtils_1 = require("./tsconfigUtils");
 const REPO_ROOT_PATH = path_1.default.join(__dirname, '../..');
 const DEFAULT_FILE_HEADER = [
     '/*!--------------------------------------------------------',
@@ -226,6 +226,6 @@ function minifyTask(src, sourceMapBaseUrl) {
 }
 function getBuildTarget() {
     const tsconfigPath = path_1.default.join(REPO_ROOT_PATH, 'src', 'tsconfig.base.json');
-    return (0, tsconfig_1.getTargetStringFromTsConfig)(tsconfigPath);
+    return (0, tsconfigUtils_1.getTargetStringFromTsConfig)(tsconfigPath);
 }
 //# sourceMappingURL=optimize.js.map
\ No newline at end of file
diff --git a/build/lib/optimize.ts b/build/lib/optimize.ts
index 24ee7f8b724..1e824a54106 100644
--- a/build/lib/optimize.ts
+++ b/build/lib/optimize.ts
@@ -15,7 +15,7 @@ import esbuild from 'esbuild';
 import sourcemaps from 'gulp-sourcemaps';
 import fancyLog from 'fancy-log';
 import ansiColors from 'ansi-colors';
-import { getTargetStringFromTsConfig } from './tsconfig';
+import { getTargetStringFromTsConfig } from './tsconfigUtils';
 
 declare module 'gulp-sourcemaps' {
 	interface WriteOptions {
diff --git a/build/lib/tsb/transpiler.js b/build/lib/tsb/transpiler.js
index cbc408114d6..07c19c5bae2 100644
--- a/build/lib/tsb/transpiler.js
+++ b/build/lib/tsb/transpiler.js
@@ -13,7 +13,7 @@ const typescript_1 = __importDefault(require("typescript"));
 const node_worker_threads_1 = __importDefault(require("node:worker_threads"));
 const vinyl_1 = __importDefault(require("vinyl"));
 const node_os_1 = require("node:os");
-const tsconfig_1 = require("../tsconfig");
+const tsconfigUtils_1 = require("../tsconfigUtils");
 function transpile(tsSrc, options) {
     const isAmd = /\n(import|export)/m.test(tsSrc);
     if (!isAmd && options.compilerOptions?.module === typescript_1.default.ModuleKind.AMD) {
@@ -241,7 +241,7 @@ class ESBuildTranspiler {
         _logFn('Transpile', `will use ESBuild to transpile source files`);
         this._outputFileNames = new OutputFileNameOracle(_cmdLine, configFilePath);
         const isExtension = configFilePath.includes('extensions');
-        const target = (0, tsconfig_1.getTargetStringFromTsConfig)(configFilePath);
+        const target = (0, tsconfigUtils_1.getTargetStringFromTsConfig)(configFilePath);
         this._transformOpts = {
             target: [target],
             format: isExtension ? 'cjs' : 'esm',
diff --git a/build/lib/tsb/transpiler.ts b/build/lib/tsb/transpiler.ts
index 95a1df95b02..f81039d70b6 100644
--- a/build/lib/tsb/transpiler.ts
+++ b/build/lib/tsb/transpiler.ts
@@ -8,7 +8,7 @@ import ts from 'typescript';
 import threads from 'node:worker_threads';
 import Vinyl from 'vinyl';
 import { cpus } from 'node:os';
-import { getTargetStringFromTsConfig } from '../tsconfig';
+import { getTargetStringFromTsConfig } from '../tsconfigUtils';
 
 interface TranspileReq {
 	readonly tsSrcs: string[];
diff --git a/build/lib/tsconfigUtils.js b/build/lib/tsconfigUtils.js
new file mode 100644
index 00000000000..a20e2d6f77d
--- /dev/null
+++ b/build/lib/tsconfigUtils.js
@@ -0,0 +1,28 @@
+"use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.getTargetStringFromTsConfig = getTargetStringFromTsConfig;
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+const path_1 = require("path");
+const typescript_1 = __importDefault(require("typescript"));
+/**
+ * Get the target (e.g. 'ES2024') from a tsconfig.json file.
+ */
+function getTargetStringFromTsConfig(configFilePath) {
+    const parsed = typescript_1.default.readConfigFile(configFilePath, typescript_1.default.sys.readFile);
+    if (parsed.error) {
+        throw new Error(`Cannot determine target from ${configFilePath}. TS error: ${parsed.error.messageText}`);
+    }
+    const cmdLine = typescript_1.default.parseJsonConfigFileContent(parsed.config, typescript_1.default.sys, (0, path_1.dirname)(configFilePath), {});
+    const resolved = typeof cmdLine.options.target !== 'undefined' ? typescript_1.default.ScriptTarget[cmdLine.options.target] : undefined;
+    if (!resolved) {
+        throw new Error(`Could not resolve target in ${configFilePath}`);
+    }
+    return resolved;
+}
+//# sourceMappingURL=tsconfigUtils.js.map
\ No newline at end of file
diff --git a/build/lib/tsconfig.ts b/build/lib/tsconfigUtils.ts
similarity index 96%
rename from build/lib/tsconfig.ts
rename to build/lib/tsconfigUtils.ts
index 9a6077a3b44..0afb2f02ae7 100644
--- a/build/lib/tsconfig.ts
+++ b/build/lib/tsconfigUtils.ts
@@ -2,7 +2,7 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-import { dirname } from 'path/posix';
+import { dirname } from 'path';
 import ts from 'typescript';
 
 /**