Makes vs/nls.availableLanguages work for AMD again.

build/build-monaco-editor.ts

@@ -5,7 +5,7 @@
 
 import path = require('path');
 import fs = require('fs');
-import { REPO_ROOT, readFiles, writeFiles, IFile } from '../build/utils';
+import { REPO_ROOT, readFiles, writeFiles, IFile, readFile } from '../build/utils';
 import { removeDir } from '../build/fs';
 import ts = require('typescript');
 import { generateMetadata } from './releaseMetadata';
@@ -66,9 +66,10 @@ generateMetadata();
  * Release to `dev` or `min`.
  */
 function AMD_releaseOne(type: 'dev' | 'min') {
-	const coreFiles = readFiles(`node_modules/monaco-editor-core/${type}/**/*`, {
+	let coreFiles = readFiles(`node_modules/monaco-editor-core/${type}/**/*`, {
 		base: `node_modules/monaco-editor-core/${type}`
 	});
+	coreFiles = fixNlsFiles(coreFiles);
 	AMD_addPluginContribs(type, coreFiles);
 	writeFiles(coreFiles, `out/monaco-editor/${type}`);
 
@@ -79,6 +80,33 @@ function AMD_releaseOne(type: 'dev' | 'min') {
 	writeFiles(pluginFiles, `out/monaco-editor/${type}`);
 }
 
+function fixNlsFiles(files: IFile[]): IFile[] {
+	return files.map((f) => {
+		if (!f.path.match(/nls\.messages\.[a-z\-]+\.js/)) {
+			return f;
+		}
+
+		const dirName = path.dirname(f.path);
+		const fileName = path.basename(f.path);
+
+		const newPath = path.join(dirName, 'vs', fileName);
+		let contentStr = f.contents.toString('utf-8');
+
+		contentStr = `
+define([], function () {
+${contentStr}
+});
+`;
+
+		const newContents = Buffer.from(contentStr, 'utf-8');
+
+		return {
+			path: newPath,
+			contents: newContents
+		};
+	});
+}
+
 /**
  * Edit editor.main.js:
  * - rename the AMD module 'vs/editor/editor.main' to 'vs/editor/edcore.main'
@@ -96,6 +124,15 @@ function AMD_addPluginContribs(type: 'dev' | 'min', files: IFile[]) {
 		// Rename the AMD module 'vs/editor/editor.main' to 'vs/editor/edcore.main'
 		contents = contents.replace(/"vs\/editor\/editor\.main\"/, '"vs/editor/edcore.main"');
 
+		// This ensures that old nls-plugin configurations are still respected by the new localization solution.
+		const contentPrefixSource = readFile('src/nls-fix.js')
+			.contents.toString('utf-8')
+			.replace(/\r\n|\n/g, ' ');
+
+		// TODO: Instead of adding this source to the header to maintain the source map indices, it should rewrite the sourcemap!
+		const searchValue = 'https://github.com/microsoft/vscode/blob/main/LICENSE.txt';
+		contents = contents.replace(searchValue, searchValue + ' */ ' + contentPrefixSource + ' /*');
+
 		const pluginFiles = readFiles(`out/languages/bundled/amd-${type}/**/monaco.contribution.js`, {
 			base: `out/languages/bundled/amd-${type}`
 		});

build/utils.ts

@@ -268,16 +268,18 @@ export function readFiles(
 	});
 
 	const base = options.base;
+	return files.map((file) => readFile(file, base));
+}
+
+export function readFile(file: string, base: string = '') {
 	const baseLength = base === '' ? 0 : base.endsWith('/') ? base.length : base.length + 1;
-	return files.map((file) => {
-		const fullPath = path.join(REPO_ROOT, file);
-		const contents = fs.readFileSync(fullPath);
-		const relativePath = file.substring(baseLength);
-		return {
-			path: relativePath,
-			contents
-		};
-	});
+	const fullPath = path.join(REPO_ROOT, file);
+	const contents = fs.readFileSync(fullPath);
+	const relativePath = file.substring(baseLength);
+	return {
+		path: relativePath,
+		contents
+	};
 }
 
 export function writeFiles(files: IFile[], dest: string) {

package.json

@@ -52,7 +52,7 @@
 		"jsdom": "^19.0.0",
 		"jsonc-parser": "^3.0.0",
 		"mocha": "^9.2.0",
-		"monaco-editor-core": "0.51.0-dev-20240725",
+		"monaco-editor-core": "0.51.0-rc2",
 		"parcel": "^2.7.0",
 		"pin-github-action": "^1.8.0",
 		"playwright": "^1.32.2",

src/nls-fix.js

@@ -0,0 +1,39 @@
+/* This fix ensures that old nls-plugin configurations are still respected by the new localization solution. */
+/* We should try to avoid this file and find a different solution.  */
+/* Warning: This file still has to work when replacing "\n" with " "! */
+
+/**
+ * @type {typeof define}
+ */
+const globalDefine = globalThis.define;
+globalDefine('vs/nls.messages-loader', [], function (...args) {
+	return {
+		load: (name, req, load, config) => {
+			const requestedLanguage = config['vs/nls']?.availableLanguages?.['*'];
+			if (!requestedLanguage || requestedLanguage === 'en') {
+				load({});
+			} else {
+				req([`vs/nls.messages.${requestedLanguage}`], () => {
+					load({});
+				});
+			}
+		}
+	};
+});
+globalDefine(
+	'vs/nls.messages',
+	['require', 'exports', 'vs/nls.messages-loader!'],
+	function (require, exports) {
+		Object.assign(exports, {
+			getNLSMessages: () => globalThis._VSCODE_NLS_MESSAGES,
+			getNLSLanguage: () => globalThis._VSCODE_NLS_LANGUAGE
+		});
+	}
+);
+define = function (...args) {
+	if (args.length > 0 && args[0] === 'vs/nls.messages') {
+		return;
+	}
+	return globalDefine(...args);
+};
+define.amd = true;