fix(@angular-devkit/schematics): ensure task option values are defined

Author: clydin

packages/angular_devkit/schematics/tasks/package-manager/executor.ts

@@ -67,7 +67,7 @@ export default function(
 
   const rootDirectory = factoryOptions.rootDirectory || process.cwd();
 
-  return (options: NodePackageTaskOptions) => {
+  return (options: NodePackageTaskOptions = { command: 'install' }) => {
     let taskPackageManagerProfile = packageManagerProfile;
     let taskPackageManagerName = packageManagerName;
     if (factoryOptions.allowPackageManagerOverride && options.packageManager) {

packages/angular_devkit/schematics/tasks/repo-init/executor.ts

@@ -20,7 +20,7 @@ export default function(
 ): TaskExecutor<RepositoryInitializerTaskOptions> {
   const rootDirectory = factoryOptions.rootDirectory || process.cwd();
 
-  return async (options: RepositoryInitializerTaskOptions, context: SchematicContext) => {
+  return async (options: RepositoryInitializerTaskOptions = {}, context: SchematicContext) => {
     const authorName = options.authorName;
     const authorEmail = options.authorEmail;
 

packages/angular_devkit/schematics/tasks/run-schematic/executor.ts

@@ -10,7 +10,13 @@ import { RunSchematicTaskOptions } from './options';
 
 
 export default function(): TaskExecutor<RunSchematicTaskOptions<{}>> {
-  return (options: RunSchematicTaskOptions<{}>, context: SchematicContext) => {
+  return (options: RunSchematicTaskOptions<{}> | undefined, context: SchematicContext) => {
+    if (!options?.name) {
+      throw new Error(
+        'RunSchematicTask requires an options object with a non-empty name property.',
+      );
+    }
+
     const maybeWorkflow = context.engine.workflow;
     const collection = options.collection || context.schematic.collection.description.name;
 

packages/angular_devkit/schematics/tasks/tslint-fix/executor.ts

@@ -81,7 +81,7 @@ function _listAllFiles(root: string): string[] {
 
 
 export default function (): TaskExecutor<TslintFixTaskOptions> {
-  return async (options: TslintFixTaskOptions, context: SchematicContext) => {
+  return async (options: TslintFixTaskOptions = {}, context: SchematicContext) => {
     const root = process.cwd();
     const tslint = await import('tslint'); // tslint:disable-line:no-implicit-dependencies