Add option for --list-extensions arg

- Updates listExtensions() and getId() for optional params showVersions / withVersion
- Adds --help info for new option

Resolves: #12963

src/vs/code/node/cliProcessMain.ts

@@ -36,8 +36,12 @@ const notFound = id => localize('notFound', "Extension '{0}' not found.", id);
 const notInstalled = id => localize('notInstalled', "Extension '{0}' is not installed.", id);
 const useId = localize('useId', "Make sure you use the full extension ID, including the publisher, eg: {0}", 'ms-vscode.csharp');
 
-function getId(manifest: IExtensionManifest): string {
-	return `${ manifest.publisher }.${ manifest.name }`;
+function getId(manifest: IExtensionManifest, withVersion?: boolean): string {
+	if (withVersion) {
+		return `${ manifest.publisher }.${ manifest.name } v${ manifest.version }`;
+	} else {
+		return `${ manifest.publisher }.${ manifest.name }`;
+	}
 }
 
 type Task = { ():TPromise<void> };
@@ -53,7 +57,7 @@ class Main {
 		// TODO@joao - make this contributable
 
 		if (argv['list-extensions']) {
-			return this.listExtensions();
+			return this.listExtensions(argv['show-versions']);
 		} else if (argv['install-extension']) {
 			const arg = argv['install-extension'];
 			const args: string[] = typeof arg === 'string' ? [arg] : arg;
@@ -65,9 +69,9 @@ class Main {
 		}
 	}
 
-	private listExtensions(): TPromise<any> {
+	private listExtensions(showVersions: boolean): TPromise<any> {
 		return this.extensionManagementService.getInstalled(LocalExtensionType.User).then(extensions => {
-			extensions.forEach(e => console.log(getId(e.manifest)));
+			extensions.forEach(e => console.log(getId(e.manifest, showVersions)));
 		});
 	}
 

src/vs/platform/environment/node/argv.ts

@@ -29,6 +29,7 @@ export interface ParsedArgs extends minimist.ParsedArgs {
 	debugBrkPluginHost?: string;
 	debugPluginHost?: string;
 	'list-extensions'?: boolean;
+	'show-versions'?: boolean;
 	'install-extension'?: string | string[];
 	'uninstall-extension'?: string | string[];
 	'open-url'?: string | string[];
@@ -59,7 +60,8 @@ const options: minimist.Opts = {
 		'verbose',
 		'logExtensionHostCommunication',
 		'disable-extensions',
-		'list-extensions'
+		'list-extensions',
+		'show-versions'
 	],
 	alias: {
 		help: 'h',
@@ -136,6 +138,7 @@ export const optionsHelp: { [name: string]: string; } = {
 	'-w, --wait': localize('wait', "Wait for the window to be closed before returning."),
 	'--extensionHomePath': localize('extensionHomePath', "Set the root path for extensions."),
 	'--list-extensions': localize('listExtensions', "List the installed extensions."),
+	'--show-versions': localize('showVersions', "Show version of installed extension. Requires --list-extension."),
 	'--install-extension <ext>': localize('installExtension', "Installs an extension."),
 	'--uninstall-extension <ext>': localize('uninstallExtension', "Uninstalls an extension."),
 	'--disable-extensions': localize('disableExtensions', "Disable all installed extensions."),