feat: enhance license handling with new utility functions

- Added utility functions to find license values, authors, and emails from user answers.
- Refactored license file generation to utilize the new functions for improved readability and maintainability.
- Removed the deprecated getAnswer function to streamline the codebase.

Author: sdqede

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

@@ -14,6 +14,18 @@ type LicenseTemplateMap = Record<string, string>;
 let cachedTemplates: LicenseTemplateMap | null = null;
 
 export type SupportedLicense = string;
+export const LICENSE_VALUE_KEYS = ["LICENSE", "license"];
+export const LICENSE_AUTHOR_KEYS = [
+  "USERFULLNAME",
+  "AUTHOR",
+  "AUTHORFULLNAME",
+  "USERNAME",
+  "fullName",
+  "author",
+  "authorFullName",
+  "userName",
+];
+export const LICENSE_EMAIL_KEYS = ["USEREMAIL", "EMAIL", "email", "userEmail"];
 
 export function isSupportedLicense(name: string): name is SupportedLicense {
   if (!name) {
@@ -58,6 +70,24 @@ export function listSupportedLicenses(): string[] {
   return Object.keys(loadLicenseTemplates());
 }
 
+export function findLicenseValue(
+  answers: Record<string, any>
+): string | undefined {
+  return getAnswerValue(answers, LICENSE_VALUE_KEYS);
+}
+
+export function findLicenseAuthor(
+  answers: Record<string, any>
+): string | undefined {
+  return getAnswerValue(answers, LICENSE_AUTHOR_KEYS);
+}
+
+export function findLicenseEmail(
+  answers: Record<string, any>
+): string | undefined {
+  return getAnswerValue(answers, LICENSE_EMAIL_KEYS);
+}
+
 function loadLicenseTemplates(): LicenseTemplateMap {
   if (cachedTemplates) {
     return cachedTemplates;
@@ -106,3 +136,15 @@ function findTemplatesDir(): string | null {
   return null;
 }
 
+function getAnswerValue(
+  answers: Record<string, any>,
+  keys: string[]
+): string | undefined {
+  for (const key of keys) {
+    const value = answers?.[key];
+    if (typeof value === "string" && value.trim() !== "") {
+      return value;
+    }
+  }
+  return undefined;
+}

packages/create-gen-app/src/template/replace.ts

@@ -4,7 +4,13 @@ import { Transform } from 'stream';
 import { pipeline } from 'stream/promises';
 
 import { ExtractedVariables } from '../types';
-import { renderLicense, isSupportedLicense } from '../licenses';
+import {
+  renderLicense,
+  isSupportedLicense,
+  findLicenseAuthor,
+  findLicenseEmail,
+  findLicenseValue,
+} from '../licenses';
 
 /**
  * Replace variables in all files in the template directory
@@ -85,7 +91,7 @@ async function ensureLicenseFile(
   outputDir: string,
   answers: Record<string, any>
 ): Promise<void> {
-  const licenseValue = getAnswer(answers, ["LICENSE", "license"]);
+  const licenseValue = findLicenseValue(answers);
   if (typeof licenseValue !== 'string' || licenseValue.trim() === '') {
     return;
   }
@@ -99,19 +105,10 @@ async function ensureLicenseFile(
   }
 
   const author =
-    getAnswer(answers, [
-      "USERFULLNAME",
-      "AUTHOR",
-      "AUTHORFULLNAME",
-      "USERNAME",
-      "fullName",
-      "author",
-      "authorFullName",
-      "userName",
-    ]) ?? "Unknown Author";
+    findLicenseAuthor(answers) ?? "Unknown Author";
 
   const email =
-    getAnswer(answers, ["USEREMAIL", "EMAIL", "email", "userEmail"]) ?? "";
+    findLicenseEmail(answers) ?? "";
 
   const content = renderLicense(selectedLicense, {
     author: String(author),
@@ -130,19 +127,6 @@ async function ensureLicenseFile(
   );
 }
 
-function getAnswer(
-  answers: Record<string, any>,
-  keys: string[]
-): string | undefined {
-  for (const key of keys) {
-    const value = answers?.[key];
-    if (typeof value === "string" && value.trim() !== "") {
-      return value;
-    }
-  }
-  return undefined;
-}
-
 /**
  * Replace variables in a file using streams
  * @param sourcePath - Source file path