refactor(ui,util): reuse option validation code for shareable libs

Author: pascalbe-dev

libs/ddd/src/schematics/ui/ui.ts

@@ -6,22 +6,9 @@ import {
   Tree
 } from '@angular-devkit/schematics';
 import { getNpmScope } from '@nrwl/workspace';
+import { validateInputs } from '../utils/lib-options';
 import { UiOptions } from './schema';
 
-function validateInputs(options: UiOptions): void {
-  if (options.shared && options.domain) {
-    throw new Error(`A UI library should either belong to a specific domain or be shared globally. 
-      If you want to share a UI library across multiple specific domains, 
-      consider using an API library. Hence, you should not provide the shared option in combination
-      with the domain option.`);
-  }
-
-  if (!options.shared && !options.domain) {
-    throw new Error(`A UI library should either belong to a domain or be shared globally.
-      Please provide either of these two options: --domain / --shared`);
-  }
-}
-
 export default function (options: UiOptions): Rule {
   return (host: Tree) => {
     validateInputs(options);

libs/ddd/src/schematics/util/util.ts

@@ -6,21 +6,9 @@ import {
   Tree
 } from '@angular-devkit/schematics';
 import { getNpmScope } from '@nrwl/workspace';
+import { validateInputs } from '../utils/lib-options';
 import { UtilOptions } from './schema';
 
-function validateInputs(options: UtilOptions): void {
-  if (options.shared && options.domain) {
-    throw new Error(`A utility library should either belong to a specific domain or be shared globally. 
-      If you want to share a utility library across multiple specific domains, 
-      consider using an API library. Hence, you should not provide the shared option in combination
-      with the domain option.`);
-  }
-
-  if (!options.shared && !options.domain) {
-    throw new Error(`A utilti library should either belong to a domain or be shared globally.
-      Please provide either of these two options: --domain / --shared`);
-  }
-}
 
 export default function (options: UtilOptions): Rule {
   return (host: Tree) => {

libs/ddd/src/schematics/utils/lib-options.ts

@@ -0,0 +1,16 @@
+export function validateInputs(options: {
+  domain?: string;
+  shared?: boolean;
+}): void {
+  if (options.shared && options.domain) {
+    throw new Error(`This library type should either belong to a specific domain or be shared globally. 
+        If you want to share this library across multiple specific domains, 
+        consider using an API library. Hence, you should not provide the shared option in combination
+        with the domain option.`);
+  }
+
+  if (!options.shared && !options.domain) {
+    throw new Error(`This library type should either belong to a domain or be shared globally.
+        Please provide either of these two options: --domain / --shared`);
+  }
+}