Fix Microsoft/vscode-remote/issues/1564

src/vs/workbench/contrib/extensions/common/extensions.ts

@@ -83,6 +83,7 @@ export interface IExtensionsWorkbenchService {
 	_serviceBrand: any;
 	onChange: Event<IExtension | undefined>;
 	local: IExtension[];
+	installed: IExtension[];
 	outdated: IExtension[];
 	queryLocal(server?: IExtensionManagementServer): Promise<IExtension[]>;
 	queryGallery(token: CancellationToken): Promise<IPager<IExtension>>;

src/vs/workbench/contrib/extensions/electron-browser/extensionsActions.ts

@@ -328,9 +328,9 @@ export class RemoteInstallAction extends ExtensionAction {
 			// Installed User Extension
 			&& this.extension && this.extension.local && this.extension.type === ExtensionType.User && this.extension.state === ExtensionState.Installed
 			// Local Workspace Extension
-			&& this.extension.server === this.extensionManagementServerService.localExtensionManagementServer && !isUIExtension(this.extension.local.manifest, this.configurationService)
+			&& this.extension.server === this.extensionManagementServerService.localExtensionManagementServer && (isLanguagePackExtension(this.extension.local.manifest) || !isUIExtension(this.extension.local.manifest, this.configurationService))
 			// Extension does not exist in remote
-			&& !this.extensionsWorkbenchService.local.some(e => areSameExtensions(e.identifier, this.extension.identifier) && e.server === this.extensionManagementServerService.remoteExtensionManagementServer)
+			&& !this.extensionsWorkbenchService.installed.some(e => areSameExtensions(e.identifier, this.extension.identifier) && e.server === this.extensionManagementServerService.remoteExtensionManagementServer)
 			&& this.extensionsWorkbenchService.canInstall(this.extension)
 		) {
 			this.enabled = true;
@@ -406,10 +406,10 @@ export class LocalInstallAction extends ExtensionAction {
 		if (this.environmentService.configuration.remoteAuthority
 			// Installed User Extension
 			&& this.extension && this.extension.local && this.extension.type === ExtensionType.User && this.extension.state === ExtensionState.Installed
-			// Remote UI Extension
-			&& this.extension.server === this.extensionManagementServerService.remoteExtensionManagementServer && isUIExtension(this.extension.local.manifest, this.configurationService)
+			// Remote UI or Language pack Extension
+			&& this.extension.server === this.extensionManagementServerService.remoteExtensionManagementServer && (isLanguagePackExtension(this.extension.local.manifest) || isUIExtension(this.extension.local.manifest, this.configurationService))
 			// Extension does not exist in local
-			&& !this.extensionsWorkbenchService.local.some(e => areSameExtensions(e.identifier, this.extension.identifier) && e.server === this.extensionManagementServerService.localExtensionManagementServer)
+			&& !this.extensionsWorkbenchService.installed.some(e => areSameExtensions(e.identifier, this.extension.identifier) && e.server === this.extensionManagementServerService.localExtensionManagementServer)
 			&& this.extensionsWorkbenchService.canInstall(this.extension)
 		) {
 			this.enabled = true;
@@ -2660,14 +2660,14 @@ export class DisabledLabelAction extends ExtensionAction {
 	update(): void {
 		this.class = `${DisabledLabelAction.Class} hide`;
 		this.label = '';
-		if (this.extension && this.extension.local && isLanguagePackExtension(this.extension.local.manifest)) {
-			return;
-		}
 		if (this.warningAction.tooltip) {
 			this.class = DisabledLabelAction.Class;
 			this.label = this.warningAction.tooltip;
 			return;
 		}
+		if (this.extension && this.extension.local && isLanguagePackExtension(this.extension.local.manifest)) {
+			return;
+		}
 		if (this.extension && this.extension.local && this._runningExtensions) {
 			const isEnabled = this.extensionEnablementService.isEnabled(this.extension.local);
 			const isExtensionRunning = this._runningExtensions.some(e => areSameExtensions({ id: e.identifier.value }, this.extension.identifier));
@@ -2728,11 +2728,19 @@ export class SystemDisabledWarningAction extends ExtensionAction {
 			!this._runningExtensions ||
 			!this.workbenchEnvironmentService.configuration.remoteAuthority ||
 			!this.extensionManagementServerService.remoteExtensionManagementServer ||
-			this.extension.state !== ExtensionState.Installed ||
-			isLanguagePackExtension(this.extension.local.manifest)
+			this.extension.state !== ExtensionState.Installed
 		) {
 			return;
 		}
+		if (isLanguagePackExtension(this.extension.local.manifest)) {
+			if (!this.extensionsWorkbenchService.installed.some(e => areSameExtensions(e.identifier, this.extension.identifier) && e.server !== this.extension.server)) {
+				this.class = `${SystemDisabledWarningAction.INFO_CLASS}`;
+				this.tooltip = this.extension.server === this.extensionManagementServerService.localExtensionManagementServer
+					? localize('Install language pack also in remote server', "Install the language pack extension on '{0}' to enable it also there.", this.getServerLabel(this.extensionManagementServerService.remoteExtensionManagementServer))
+					: localize('Install language pack also locally', "Install the extension locally to enable it also there.");
+			}
+			return;
+		}
 		const runningExtension = this._runningExtensions.filter(e => areSameExtensions({ id: e.identifier.value }, this.extension.identifier))[0];
 		const runningExtensionServer = runningExtension ? this.extensionManagementServerService.getExtensionManagementServer(runningExtension.extensionLocation) : null;
 		const localExtension = this.extensionsWorkbenchService.local.filter(e => areSameExtensions(e.identifier, this.extension.identifier))[0];

src/vs/workbench/contrib/extensions/electron-browser/extensionsViews.ts

@@ -338,11 +338,20 @@ export class ExtensionsListView extends ViewletPanel {
 					const isE1Running = running1 && this.extensionManagementServerService.getExtensionManagementServer(running1.extensionLocation) === e1.server;
 					const running2 = runningExtensionsById.get(ExtensionIdentifier.toKey(e2.identifier.id));
 					const isE2Running = running2 && this.extensionManagementServerService.getExtensionManagementServer(running2.extensionLocation) === e2.server;
-					if ((isE1Running && isE2Running) || (!isE1Running && !isE2Running)) {
+					if ((isE1Running && isE2Running)) {
 						return e1.displayName.localeCompare(e2.displayName);
 					}
 					const isE1LanguagePackExtension = e1.local && isLanguagePackExtension(e1.local.manifest);
 					const isE2LanguagePackExtension = e2.local && isLanguagePackExtension(e2.local.manifest);
+					if (!isE1Running && !isE2Running) {
+						if (isE1LanguagePackExtension) {
+							return -1;
+						}
+						if (isE2LanguagePackExtension) {
+							return 1;
+						}
+						return e1.displayName.localeCompare(e2.displayName);
+					}
 					if ((isE1Running && isE2LanguagePackExtension) || (isE2Running && isE1LanguagePackExtension)) {
 						return e1.displayName.localeCompare(e2.displayName);
 					}

src/vs/workbench/contrib/extensions/node/extensionsWorkbenchService.ts

@@ -34,7 +34,7 @@ import * as resources from 'vs/base/common/resources';
 import { CancellationToken } from 'vs/base/common/cancellation';
 import { IStorageService, StorageScope } from 'vs/platform/storage/common/storage';
 import { IFileService } from 'vs/platform/files/common/files';
-import { IExtensionManifest, ExtensionType, ExtensionIdentifierWithVersion, IExtension as IPlatformExtension } from 'vs/platform/extensions/common/extensions';
+import { IExtensionManifest, ExtensionType, ExtensionIdentifierWithVersion, IExtension as IPlatformExtension, isLanguagePackExtension } from 'vs/platform/extensions/common/extensions';
 
 interface IExtensionStateProvider<T> {
 	(extension: Extension): T;
@@ -584,15 +584,19 @@ export class ExtensionsWorkbenchService extends Disposable implements IExtension
 	}
 
 	get local(): IExtension[] {
-		const result = [...this.localExtensions.local];
-		if (!this.remoteExtensions) {
-			return result;
-		}
-		result.push(...this.remoteExtensions.local);
+		const result = [...this.installed];
 		const byId = groupByExtension(result, r => r.identifier);
 		return byId.reduce((result, extensions) => { result.push(this.getPrimaryExtension(extensions)); return result; }, []);
 	}
 
+	get installed(): IExtension[] {
+		const result = [...this.localExtensions.local];
+		if (this.remoteExtensions) {
+			result.push(...this.remoteExtensions.local);
+		}
+		return result;
+	}
+
 	get outdated(): IExtension[] {
 		const allLocal = [...this.localExtensions.local];
 		if (this.remoteExtensions) {
@@ -812,7 +816,7 @@ export class ExtensionsWorkbenchService extends Disposable implements IExtension
 		}
 
 		return this.installWithProgress(async () => {
-			const extensionService = extension.server ? extension.server.extensionManagementService : this.extensionService;
+			const extensionService = extension.server && extension.local && !isLanguagePackExtension(extension.local.manifest) ? extension.server.extensionManagementService : this.extensionService;
 			await extensionService.installFromGallery(gallery);
 			this.checkAndEnableDisabledDependencies(gallery.identifier);
 			return this.local.filter(local => areSameExtensions(local.identifier, gallery.identifier))[0];
@@ -855,7 +859,7 @@ export class ExtensionsWorkbenchService extends Disposable implements IExtension
 					return Promise.reject(new Error(nls.localize('incompatible', "Unable to install extension '{0}' with version '{1}' as it is not compatible with VS Code.", extension.gallery!.identifier.id, version)));
 				}
 				return this.installWithProgress(async () => {
-					const extensionService = extension.server ? extension.server.extensionManagementService : this.extensionService;
+					const extensionService = extension.server && extension.local && !isLanguagePackExtension(extension.local.manifest) ? extension.server.extensionManagementService : this.extensionService;
 					await extensionService.installFromGallery(gallery);
 					if (extension.latestVersion !== version) {
 						this.ignoreAutoUpdate(new ExtensionIdentifierWithVersion(gallery.identifier, version));