feat: add optionsFrom resolver support for dynamic options

packages/create-gen-app/__tests__/create-gen.test.ts

@@ -18,6 +18,7 @@ jest.mock('inquirerer', () => {
         prompt: jest.fn().mockResolvedValue({}),
       };
     }),
+    registerDefaultResolver: jest.fn(),
   };
 });
 

packages/create-gen-app/src/index.ts

@@ -1,11 +1,18 @@
 import * as fs from 'fs';
 import * as path from 'path';
 
+import { registerDefaultResolver } from 'inquirerer';
+
 import { extractVariables } from './template/extract';
 import { promptUser } from './template/prompt';
 import { replaceVariables } from './template/replace';
+import { listSupportedLicenses } from './licenses';
 import { CreateGenOptions } from './types';
 
+// Register the 'licenses' resolver for optionsFrom support
+// This allows boilerplate templates to use: "optionsFrom": "licenses"
+registerDefaultResolver('licenses', () => listSupportedLicenses());
+
 // Export new modular classes
 export * from './cache/cache-manager';
 export * from './cache/types';

packages/inquirerer/src/prompt.ts

@@ -469,6 +469,9 @@ export class Inquirerer {
     // Resolve dynamic defaults before processing questions
     await this.resolveDynamicDefaults(questions);
 
+    // Resolve dynamic options before processing questions
+    await this.resolveOptionsFrom(questions);
+
     // Resolve setFrom values - these bypass prompting entirely
     await this.resolveSetValues(questions, obj);
 
@@ -609,6 +612,22 @@ export class Inquirerer {
     }
   }
 
+  /**
+   * Resolves optionsFrom values for all questions that have optionsFrom specified.
+   * Updates the question.options property with the resolved array.
+   */
+  private async resolveOptionsFrom(questions: Question[]): Promise<void> {
+    for (const question of questions) {
+      if ('optionsFrom' in question && question.optionsFrom) {
+        const resolved = await this.resolverRegistry.resolve(question.optionsFrom);
+        if (resolved !== undefined && Array.isArray(resolved)) {
+          // Update question.options with resolved array
+          (question as any).options = resolved;
+        }
+      }
+    }
+  }
+
   private applyDefaultValues(questions: Question[], obj: any): void {
     questions.forEach(question => {
       if ('default' in question) {
@@ -1192,4 +1211,4 @@ export class Inquirerer {
       this.keypress.destroy();
     }
   }
-}
+}

packages/inquirerer/src/question/types.ts

@@ -20,6 +20,7 @@ export interface BaseQuestion {
     default?: any;
     defaultFrom?: string;
     setFrom?: string;
+    optionsFrom?: string;
     useDefault?: boolean;
     required?: boolean;
     message?: string;
@@ -69,4 +70,4 @@ export interface BaseQuestion {
     default?: number;
   }
 
-  export type Question = ConfirmQuestion | ListQuestion | AutocompleteQuestion | CheckboxQuestion | TextQuestion | NumberQuestion;
+  export type Question = ConfirmQuestion | ListQuestion | AutocompleteQuestion | CheckboxQuestion | TextQuestion | NumberQuestion;