refactor: use ejs templates for vite.config.* (#292)

The base template has a `vite.config.js.ejs` template file, which reads data from a corresponding `vite.config.js.data.mjs` file. The data file has a default export called `getData()`.
Other templates can also have data files that can be chained together so that they can modify the data fed into the template. They don't have to define the template again, though.

This fixes the issue mentioned in #257 (comment)

As we don't support plugins or extensions for this tool, I didn't choose to design the feature in an extensible way, but only considered ease of implementation and ease of modification.

Author: haoqunjiang

LICENSE

@@ -27,7 +27,7 @@ SOFTWARE.
 ## Licenses of bundled dependencies
 
 The published create-vue artifact additionally contains code with the following licenses:
-MIT
+MIT, Apache-2.0
 
 ## Bundled dependencies
 
@@ -60,6 +60,216 @@ Repository: git+https://github.com/vuejs/create-eslint-config.git
 > SOFTWARE.
 >
 
+## ejs
+
+License: Apache-2.0
+By: Matthew Eernisse
+Repository: git://github.com/mde/ejs.git
+
+>
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+
 ## javascript-stringify
 
 License: MIT

index.ts

@@ -7,6 +7,8 @@ import minimist from 'minimist'
 import prompts from 'prompts'
 import { red, green, bold } from 'kolorist'
 
+import ejs from 'ejs'
+
 import * as banners from './utils/banners'
 
 import renderTemplate from './utils/renderTemplate'
@@ -316,9 +318,10 @@ async function init() {
   // when bundling for node and the format is cjs
   // const templateRoot = new URL('./template', import.meta.url).pathname
   const templateRoot = path.resolve(__dirname, 'template')
+  const callbacks = []
   const render = function render(templateName) {
     const templateDir = path.resolve(templateRoot, templateName)
-    renderTemplate(templateDir, root)
+    renderTemplate(templateDir, root, callbacks)
   }
   // Render base template
   render('base')
@@ -399,6 +402,29 @@ async function init() {
     render('entry/default')
   }
 
+  // An external data store for callbacks to share data
+  const dataStore = {}
+  // Process callbacks
+  for (const cb of callbacks) {
+    await cb(dataStore)
+  }
+
+  // EJS template rendering
+  preOrderDirectoryTraverse(
+    root,
+    () => {},
+    (filepath) => {
+      if (filepath.endsWith('.ejs')) {
+        const template = fs.readFileSync(filepath, 'utf-8')
+        const dest = filepath.replace(/\.ejs$/, '')
+        const content = ejs.render(template, dataStore[dest])
+
+        fs.writeFileSync(dest, content)
+        fs.unlinkSync(filepath)
+      }
+    }
+  )
+
   // Cleanup.
 
   // We try to share as many files between TypeScript and JavaScript as possible.

package.json

@@ -40,6 +40,7 @@
     "@types/prompts": "^2.4.4",
     "@vue/create-eslint-config": "^0.2.1",
     "@vue/tsconfig": "^0.4.0",
+    "ejs": "^3.1.9",
     "esbuild": "^0.17.18",
     "esbuild-plugin-license": "^1.2.2",
     "husky": "^8.0.3",

pnpm-lock.yaml

@@ -0,0 +1,9 @@
+export default function getData() {
+  return {
+    plugins: [{
+      id: 'vue',
+      importer: "import vue from '@vitejs/plugin-vue'",
+      initializer: 'vue()'
+    }]
+  }
+}

template/base/vite.config.js.data.mjs

@@ -1,11 +1,17 @@
 import { fileURLToPath, URL } from 'node:url'
 
 import { defineConfig } from 'vite'
-import vue from '@vitejs/plugin-vue'
+<%_ for (const { importer } of plugins) { _%>
+<%- importer %>
+<%_ } _%>
 
 // https://vitejs.dev/config/
 export default defineConfig({
-  plugins: [vue()],
+  plugins: [
+  <%_ for (const { initializer } of plugins) { _%>
+    <%- initializer _%>,
+  <%_ } _%>
+  ],
   resolve: {
     alias: {
       '@': fileURLToPath(new URL('./src', import.meta.url))

template/base/vite.config.js renamed to template/base/vite.config.js.ejs

@@ -0,0 +1,15 @@
+export default function getData({ oldData }) {
+  const vueJsxPlugin = {
+    name: 'vueJsx',
+    importer: "import vueJsx from '@vitejs/plugin-vue-jsx'",
+    initializer: 'vueJsx()'
+  }
+
+  return {
+    ...oldData,
+    // Append the vueJsx plugin right after the vue plugin
+    plugins: oldData.plugins.flatMap((plugin) =>
+      plugin.id === 'vue' ? [plugin, vueJsxPlugin] : plugin
+    )
+  }
+}