unpublish without arguments

fixes #81

src/main.ts

@@ -29,10 +29,10 @@ module.exports = function (argv: string[]): void {
 		.action((version, { pat }) => catchFatal(publish({ pat, version })));
 
 	program
-		.command('unpublish <publisher> <name>')
-		.description('Unpublishes an extension')
+		.command('unpublish [<extensionid>]')
+		.description('Unpublishes an extension. Example extension id: microsoft.csharp.')
 		.option('-p, --pat <token>', 'Personal Access Token')
-		.action((publisher, name, { pat }) => catchFatal(unpublish(publisher, name, { pat })));
+		.action((id, { pat }) => catchFatal(unpublish({ id, pat })));
 
 	program
 		.command('list <publisher>')

src/package.ts

@@ -286,7 +286,7 @@ export function validateManifest(manifest: Manifest): Manifest {
 	return manifest;
 }
 
-export function readManifest(cwd: string): Promise<Manifest> {
+export function readManifest(cwd = process.cwd()): Promise<Manifest> {
 	const manifestPath = path.join(cwd, 'package.json');
 
 	return readFile(manifestPath, 'utf8')

src/publish.ts

@@ -157,12 +157,21 @@ export function list(publisher: string): Promise<any> {
 		});
 }
 
-export function unpublish(publisher: string, name: string, options: IPublishOptions = {}): Promise<any> {
-	const details = publisher && name
-		? Promise.resolve(({ publisher, name }))
-		: readManifest(options.cwd);
+export interface IUnpublishOptions extends IPublishOptions {
+	id?: string;
+}
 
-	return details.then(({ publisher, name }) => {
+export function unpublish(options: IUnpublishOptions = {}): Promise<any> {
+	let promise: Promise<{ publisher: string; name: string; }>;
+
+	if (options.id) {
+		const [publisher, name] = options.id.split('.');
+		promise = Promise.resolve(({ publisher, name }));
+	} else {
+		promise = readManifest(options.cwd);
+	}
+
+	return promise.then(({ publisher, name }) => {
 		const fullName = `${ publisher }.${ name }`;
 		const pat = options.pat
 			? Promise.resolve(options.pat)