refactor(create-tsdown): consolidate template options to have single source of truth (#561)

Co-authored-by: Kevin Deng <[email protected]>

Author: yangshun

packages/create-tsdown/src/cli.ts

@@ -2,7 +2,7 @@ import process from 'node:process'
 import { log } from '@clack/prompts'
 import { cac } from 'cac'
 import { version } from '../package.json'
-import { create, type Options } from './index'
+import { create, templateOptions, type Options } from './index'
 
 const cli = cac('create-tsdown')
 cli.help().version(version)
@@ -14,7 +14,7 @@ cli
   })
   .option(
     '-t, --template <template>',
-    'Available templates: default, minimal, vue, react, solid',
+    `Available templates: ${templateOptions.map((option) => option.value).join(', ')}`,
     { default: 'default' },
   )
   .action((path: string | undefined, options: Options) => create(path, options))

packages/create-tsdown/src/index.ts

@@ -12,8 +12,18 @@ import {
 import { downloadTemplate } from 'giget'
 import { getUserAgent } from 'package-manager-detector'
 
+export const templateOptions = [
+  { value: 'default', label: 'Default' },
+  { value: 'minimal', label: 'Minimal' },
+  { value: 'vue', label: 'Vue' },
+  { value: 'react', label: 'React' },
+  { value: 'solid', label: 'Solid' },
+] as const
+
+type TemplateOption = (typeof templateOptions)[number]['value']
+
 export interface Options {
-  template?: 'default' | 'minimal' | 'vue' | 'react' | 'solid'
+  template?: TemplateOption
   path?: string
 }
 
@@ -74,21 +84,16 @@ export async function resolveOptions(
 
   let template: Options['template'] | symbol = options.template
   if (template) {
-    if (!['default', 'minimal', 'vue', 'react', 'solid'].includes(template)) {
+    const templateOptionsValues = templateOptions.map((option) => option.value)
+    if (!templateOptionsValues.includes(template)) {
       throw new Error(
-        `Invalid template "${template}". Available templates: default, vue, react, solid`,
+        `Invalid template "${template}". Available templates: ${templateOptionsValues.join(', ')}`,
       )
     }
   } else {
     template = await select({
       message: 'Which template do you want to use?',
-      options: [
-        { value: 'default', label: 'Default' },
-        { value: 'minimal', label: 'Minimal' },
-        { value: 'vue', label: 'Vue' },
-        { value: 'react', label: 'React' },
-        { value: 'solid', label: 'Solid' },
-      ],
+      options: [...templateOptions],
       initialValue: 'default',
     })