Fix microsoft#110905

src/vs/code/node/cliProcessMain.ts

@@ -133,13 +133,25 @@ export class Main {
 			console.log(localize('installingExtensions', "Installing extensions..."));
 		}
 
+		const installed = await this.extensionManagementService.getInstalled(ExtensionType.User);
 		const vsixs: string[] = [];
 		const installExtensionInfos: InstallExtensionInfo[] = [];
 		for (const extension of extensions) {
 			if (/\.vsix$/i.test(extension)) {
 				vsixs.push(extension);
 			} else {
 				const [id, version] = getIdAndVersion(extension);
+				const installedExtension = installed.find(i => areSameExtensions(i.identifier, { id }));
+				if (installedExtension) {
+					if (!version && !force) {
+						console.log(localize('alreadyInstalled-checkAndUpdate', "Extension '{0}' is already installed. Use '--force' option to check and update to newer version.", id));
+						continue;
+					}
+					if (version && installedExtension.manifest.version === version) {
+						console.log(localize('alreadyInstalled', "Extension '{0}' is already installed.", `${id}@${version}`));
+						continue;
+					}
+				}
 				installExtensionInfos.push({ id, version, installOptions: { isBuiltin: false, isMachineScoped } });
 			}
 		}
@@ -164,10 +176,7 @@ export class Main {
 
 		if (installExtensionInfos.length) {
 
-			const [galleryExtensions, installed] = await Promise.all([
-				this.getGalleryExtensions(installExtensionInfos),
-				this.extensionManagementService.getInstalled(ExtensionType.User)
-			]);
+			const galleryExtensions = await this.getGalleryExtensions(installExtensionInfos);
 
 			await Promise.all(installExtensionInfos.map(async extensionInfo => {
 				const gallery = galleryExtensions.get(extensionInfo.id.toLowerCase());
@@ -248,10 +257,6 @@ export class Main {
 				console.log(localize('alreadyInstalled', "Extension '{0}' is already installed.", version ? `${id}@${version}` : id));
 				return null;
 			}
-			if (!version && !force) {
-				console.log(localize('forceUpdate', "Extension '{0}' v{1} is already installed, but a newer version {2} is available in the marketplace. Use '--force' option to update to newer version.", id, installedExtension.manifest.version, galleryExtension.version));
-				return null;
-			}
 			console.log(localize('updateMessage', "Updating the extension '{0}' to the version {1}", id, galleryExtension.version));
 		}