code-server/patches/display-language.diff

Add display language support

We can remove this once upstream supports all language packs.

1. Proxies language packs to the service on the backend.
2. NLS configuration is embedded into the HTML for the browser to pick up.  This
   code to generate this configuration is copied from the native portion.
3. Remove configuredLocale since we have our own thing.
4. Move the argv.json file to the server instead of in-browser storage.  This is
   where the current locale is stored and currently the server needs to be able
   to read it.
5. Add the locale flag.
6. Remove the redundant locale verification.  It does the same as the existing
   one but is worse because it does not handle non-existent or empty files.
7. Replace some caching and Node requires because code-server does not restart
   when changing the language unlike native Code.

Index: code-server/lib/vscode/src/vs/server/node/serverServices.ts
===================================================================
--- code-server.orig/lib/vscode/src/vs/server/node/serverServices.ts
+++ code-server/lib/vscode/src/vs/server/node/serverServices.ts
@@ -209,6 +209,9 @@ export async function setupServerService
 		const channel = new ExtensionManagementChannel(extensionManagementService, (ctx: RemoteAgentConnectionContext) => getUriTransformer(ctx.remoteAuthority));
 		socketServer.registerChannel('extensions', channel);
 
+		const languagePackChannel = ProxyChannel.fromService<RemoteAgentConnectionContext>(accessor.get(ILanguagePackService));
+		socketServer.registerChannel('languagePacks', languagePackChannel);
+
 		const encryptionChannel = ProxyChannel.fromService<RemoteAgentConnectionContext>(accessor.get(IEncryptionMainService));
 		socketServer.registerChannel('encryption', encryptionChannel);
 
Index: code-server/lib/vscode/src/vs/base/common/platform.ts
===================================================================
--- code-server.orig/lib/vscode/src/vs/base/common/platform.ts
+++ code-server/lib/vscode/src/vs/base/common/platform.ts
@@ -2,8 +2,6 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-import * as nls from 'vs/nls';
-
 export const LANGUAGE_DEFAULT = 'en';
 
 let _isWindows = false;
@@ -83,17 +81,19 @@ if (typeof navigator === 'object' && !is
 	_isMobile = _userAgent?.indexOf('Mobi') >= 0;
 	_isWeb = true;
 
-	const configuredLocale = nls.getConfiguredDefaultLocale(
-		// This call _must_ be done in the file that calls `nls.getConfiguredDefaultLocale`
-		// to ensure that the NLS AMD Loader plugin has been loaded and configured.
-		// This is because the loader plugin decides what the default locale is based on
-		// how it's able to resolve the strings.
-		nls.localize({ key: 'ensureLoaderPluginIsLoaded', comment: ['{Locked}'] }, '_')
-	);
-
-	_locale = configuredLocale || LANGUAGE_DEFAULT;
+	_locale = LANGUAGE_DEFAULT;
 
 	_language = _locale;
+	const el = typeof document !== 'undefined' && document.getElementById('vscode-remote-nls-configuration');
+	const rawNlsConfig = el && el.getAttribute('data-settings');
+	if (rawNlsConfig) {
+		try {
+			const nlsConfig: NLSConfig = JSON.parse(rawNlsConfig);
+			_locale = nlsConfig.locale;
+			_translationsConfigFile = nlsConfig._translationsConfigFile;
+			_language = nlsConfig.availableLanguages['*'] || LANGUAGE_DEFAULT;
+		} catch (error) { /* Oh well. */ }
+	}
 }
 
 // Native environment
Index: code-server/lib/vscode/src/vs/code/browser/workbench/workbench.html
===================================================================
--- code-server.orig/lib/vscode/src/vs/code/browser/workbench/workbench.html
+++ code-server/lib/vscode/src/vs/code/browser/workbench/workbench.html
@@ -23,6 +23,9 @@
 		<!-- Workbench Auth Session -->
 		<meta id="vscode-workbench-auth-session" data-settings="{{WORKBENCH_AUTH_SESSION}}">
 
+		<!-- NLS Configuration -->
+		<meta id="vscode-remote-nls-configuration" data-settings="{{NLS_CONFIGURATION}}">
+
 		<!-- Workbench Icon/Manifest/CSS -->
 		<link rel="icon" href="{{BASE}}/_static/src/browser/media/favicon-dark-support.svg" />
 		<link rel="alternate icon" href="{{BASE}}/_static/src/browser/media/favicon.ico" type="image/x-icon" />
@@ -46,15 +49,26 @@
 		// Set up nls if the user is not using the default language (English)
 		const nlsConfig = {};
 		const locale = window.localStorage.getItem('vscode.nls.locale') || navigator.language;
-		if (!locale.startsWith('en')) {
-			nlsConfig['vs/nls'] = {
-				availableLanguages: {
-					'*': locale
-				},
-				translationServiceUrl: '{{WORKBENCH_NLS_BASE_URL}}'
-			};
-		}
-
+		try {
+			nlsConfig['vs/nls'] = JSON.parse(document.getElementById("vscode-remote-nls-configuration").getAttribute("data-settings"))
+			if (nlsConfig['vs/nls']._resolvedLanguagePackCoreLocation) {
+				const bundles = Object.create(null)
+				nlsConfig['vs/nls'].loadBundle = (bundle, _language, cb) => {
+					const result = bundles[bundle]
+					if (result) {
+						return cb(undefined, result)
+					}
+					const path = nlsConfig['vs/nls']._resolvedLanguagePackCoreLocation + "/" + bundle.replace(/\//g, "!") + ".nls.json"
+					fetch(`{{WORKBENCH_WEB_BASE_URL}}/../vscode-remote-resource?path=${encodeURIComponent(path)}`)
+						.then((response) => response.json())
+						.then((json) => {
+							bundles[bundle] = json
+							cb(undefined, json)
+						})
+						.catch(cb)
+				}
+			}
+		} catch (error) { /* Probably fine. */ }
 		require.config({
 			baseUrl: `${baseUrl}/out`,
 			recordStats: true,
Index: code-server/lib/vscode/src/vs/platform/environment/common/environmentService.ts
===================================================================
--- code-server.orig/lib/vscode/src/vs/platform/environment/common/environmentService.ts
+++ code-server/lib/vscode/src/vs/platform/environment/common/environmentService.ts
@@ -105,7 +105,7 @@ export abstract class AbstractNativeEnvi
 			return URI.file(join(vscodePortable, 'argv.json'));
 		}
 
-		return joinPath(this.userHome, this.productService.dataFolderName, 'argv.json');
+		return joinPath(this.appSettingsHome, 'argv.json');
 	}
 
 	@memoize
Index: code-server/lib/vscode/src/vs/server/node/remoteLanguagePacks.ts
===================================================================
--- code-server.orig/lib/vscode/src/vs/server/node/remoteLanguagePacks.ts
+++ code-server/lib/vscode/src/vs/server/node/remoteLanguagePacks.ts
@@ -30,6 +30,12 @@ export function getNLSConfiguration(lang
 				if (InternalNLSConfiguration.is(value)) {
 					value._languagePackSupport = true;
 				}
+				// If the configuration has no results keep trying since code-server
+				// doesn't restart when a language is installed so this result would
+				// persist (the plugin might not be installed yet for example).
+				if (value.locale !== 'en' && value.locale !== 'en-us' && Object.keys(value.availableLanguages).length === 0) {
+					_cache.delete(key);
+				}
 				return value;
 			});
 			_cache.set(key, result);
@@ -44,3 +50,43 @@ export namespace InternalNLSConfiguratio
 		return candidate && typeof candidate._languagePackId === 'string';
 	}
 }
+
+/**
+ * The code below is copied from from src/main.js.
+ */
+
+export const getLocaleFromConfig = async (argvResource: string): Promise<string> => {
+	try {
+		const content = stripComments(await fs.promises.readFile(argvResource, 'utf8'));
+		return JSON.parse(content).locale;
+	} catch (error) {
+		if (error.code !== "ENOENT") {
+			console.warn(error)
+		}
+		return 'en';
+	}
+};
+
+const stripComments = (content: string): string => {
+	const regexp = /('(?:[^\\']*(?:\\.)?)*')|('(?:[^\\']*(?:\\.)?)*')|(\/\*(?:\r?\n|.)*?\*\/)|(\/{2,}.*?(?:(?:\r?\n)|$))/g;
+
+	return content.replace(regexp, (match, _m1, _m2, m3, m4) => {
+		// Only one of m1, m2, m3, m4 matches
+		if (m3) {
+			// A block comment. Replace with nothing
+			return '';
+		} else if (m4) {
+			// A line comment. If it ends in \r?\n then keep it.
+			const length_1 = m4.length;
+			if (length_1 > 2 && m4[length_1 - 1] === '\n') {
+				return m4[length_1 - 2] === '\r' ? '\r\n' : '\n';
+			}
+			else {
+				return '';
+			}
+		} else {
+			// We match a string
+			return match;
+		}
+	});
+};
Index: code-server/lib/vscode/src/vs/server/node/webClientServer.ts
===================================================================
--- code-server.orig/lib/vscode/src/vs/server/node/webClientServer.ts
+++ code-server/lib/vscode/src/vs/server/node/webClientServer.ts
@@ -26,6 +26,7 @@ import { URI } from 'vs/base/common/uri'
 import { streamToBuffer } from 'vs/base/common/buffer';
 import { IProductConfiguration } from 'vs/base/common/product';
 import { isString } from 'vs/base/common/types';
+import { getLocaleFromConfig, getNLSConfiguration } from 'vs/server/node/remoteLanguagePacks';
 import { CharCode } from 'vs/base/common/charCode';
 import { getRemoteServerRootPath } from 'vs/platform/remote/common/remoteHosts';
 
@@ -299,6 +300,8 @@ export class WebClientServer {
 
 		const base = relativeRoot(getOriginalUrl(req))
 		const vscodeBase = relativePath(getOriginalUrl(req))
+		const locale = this._environmentService.args.locale || await getLocaleFromConfig(this._environmentService.argvResource.fsPath);
+		const nlsConfiguration = await getNLSConfiguration(locale, this._environmentService.userDataPath)
 
 		const workbenchWebConfiguration = {
 			remoteAuthority,
@@ -336,6 +339,7 @@ export class WebClientServer {
 			WORKBENCH_NLS_BASE_URL: vscodeBase + (nlsBaseUrl ? `${nlsBaseUrl}${!nlsBaseUrl.endsWith('/') ? '/' : ''}${this._productService.commit}/${this._productService.version}/` : ''),
 			BASE: base,
 			VS_BASE: vscodeBase,
+			NLS_CONFIGURATION: asJSON(nlsConfiguration),
 		};
 
 
Index: code-server/lib/vscode/src/vs/server/node/serverEnvironmentService.ts
===================================================================
--- code-server.orig/lib/vscode/src/vs/server/node/serverEnvironmentService.ts
+++ code-server/lib/vscode/src/vs/server/node/serverEnvironmentService.ts
@@ -15,6 +15,7 @@ export const serverOptions: OptionDescri
 	'disable-update-check': { type: 'boolean' },
 	'auth': { type: 'string' },
 	'disable-file-downloads': { type: 'boolean' },
+	'locale': { type: 'string' },
 
 	/* ----- server setup ----- */
 
@@ -96,6 +97,7 @@ export interface ServerParsedArgs {
 	'disable-update-check'?: boolean;
 	'auth'?: string
 	'disable-file-downloads'?: boolean;
+	'locale'?: string
 
 	/* ----- server setup ----- */
 
Index: code-server/lib/vscode/src/vs/workbench/workbench.web.main.ts
===================================================================
--- code-server.orig/lib/vscode/src/vs/workbench/workbench.web.main.ts
+++ code-server/lib/vscode/src/vs/workbench/workbench.web.main.ts
@@ -123,8 +123,9 @@ import 'vs/workbench/contrib/logs/browse
 // Explorer
 import 'vs/workbench/contrib/files/browser/files.web.contribution';
 
-// Localization
-import 'vs/workbench/contrib/localization/browser/localization.contribution';
+// Localization.  This does not actually import anything specific to Electron so
+// it should be safe.
+import 'vs/workbench/contrib/localization/electron-sandbox/localization.contribution';
 
 // Performance
 import 'vs/workbench/contrib/performance/browser/performance.web.contribution';
Index: code-server/lib/vscode/src/vs/platform/languagePacks/browser/languagePacks.ts
===================================================================
--- code-server.orig/lib/vscode/src/vs/platform/languagePacks/browser/languagePacks.ts
+++ code-server/lib/vscode/src/vs/platform/languagePacks/browser/languagePacks.ts
@@ -4,10 +4,23 @@
  *--------------------------------------------------------------------------------------------*/
 
 import { ILanguagePackItem, LanguagePackBaseService } from 'vs/platform/languagePacks/common/languagePacks';
+import { ProxyChannel } from 'vs/base/parts/ipc/common/ipc';
+import { ILanguagePackService } from 'vs/platform/languagePacks/common/languagePacks';
+import { IRemoteAgentService } from 'vs/workbench/services/remote/common/remoteAgentService';
+import { IExtensionGalleryService } from 'vs/platform/extensionManagement/common/extensionManagement';
 
 export class WebLanguagePacksService extends LanguagePackBaseService {
-	// Web doesn't have a concept of language packs, so we just return an empty array
+	private readonly languagePackService: ILanguagePackService;
+
+	constructor(
+		@IRemoteAgentService remoteAgentService: IRemoteAgentService,
+		@IExtensionGalleryService extensionGalleryService: IExtensionGalleryService
+	) {
+		super(extensionGalleryService)
+		this.languagePackService = ProxyChannel.toService<ILanguagePackService>(remoteAgentService.getConnection()!.getChannel('languagePacks'));
+	}
+
 	getInstalledLanguages(): Promise<ILanguagePackItem[]> {
-		return Promise.resolve([]);
+		return this.languagePackService.getInstalledLanguages()
 	}
 }
Index: code-server/lib/vscode/src/vs/workbench/contrib/localization/electron-sandbox/localeService.ts
===================================================================
--- code-server.orig/lib/vscode/src/vs/workbench/contrib/localization/electron-sandbox/localeService.ts
+++ code-server/lib/vscode/src/vs/workbench/contrib/localization/electron-sandbox/localeService.ts
@@ -41,7 +41,8 @@ export class NativeLocaleService impleme
 		@IProductService private readonly productService: IProductService
 	) { }
 
-	private async validateLocaleFile(): Promise<boolean> {
+	// Make public just so we do not have to patch all the unused code out.
+	public async validateLocaleFile(): Promise<boolean> {
 		try {
 			const content = await this.textFileService.read(this.environmentService.argvResource, { encoding: 'utf8' });
 
@@ -68,9 +69,6 @@ export class NativeLocaleService impleme
 	}
 
 	private async writeLocaleValue(locale: string | undefined): Promise<boolean> {
-		if (!(await this.validateLocaleFile())) {
-			return false;
-		}
 		await this.jsonEditingService.write(this.environmentService.argvResource, [{ path: ['locale'], value: locale }], true);
 		return true;
 	}