From ed8b30cf2464a505ab28f3f1b6f7e8ec81a81c28 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=B8=89=E5=92=B2=E6=99=BA=E5=AD=90=20Kevin=20Deng?=
 <sxzz@sxzz.moe>
Date: Tue, 13 Aug 2024 23:50:33 +0800
Subject: [PATCH] refactor: simplify build typescript-eslint parser

---
 composables/parser/javascript/eslint.ts |  7 +++++--
 modules/build-parser.ts                 | 22 +++++++++++++++-------
 2 files changed, 20 insertions(+), 9 deletions(-)

diff --git a/composables/parser/javascript/eslint.ts b/composables/parser/javascript/eslint.ts
index 6b879e0..13d343e 100644
--- a/composables/parser/javascript/eslint.ts
+++ b/composables/parser/javascript/eslint.ts
@@ -29,7 +29,10 @@ export const espree: Parser<any, any> = {
   gui: () => import('./EslintEspreeGui.vue'),
 }
 
-export const tsEslint: Parser<typeof TsEslint, TsEslint.ParserOptions> = {
+export const tsEslint: Parser<
+  Pick<typeof TsEslint, 'parse' | 'version'>,
+  TsEslint.ParserOptions
+> = {
   id: 'typescript-eslint',
   label: '@typescript-eslint/parser',
   icon: 'https://cdn.jsdelivr.net/gh/typescript-eslint/typescript-eslint@main/packages/website/static/img/logo.svg',
@@ -47,7 +50,7 @@ export const tsEslint: Parser<typeof TsEslint, TsEslint.ParserOptions> = {
   pkgName: '@typescript-eslint/parser',
   init: () =>
     // @ts-expect-error
-    import('/virtual/typescript-eslint/parser').then((mod) => mod.default),
+    import('/virtual/typescript-eslint/parser'),
   async version() {
     return (await this).version
   },
diff --git a/modules/build-parser.ts b/modules/build-parser.ts
index 28bc533..033f985 100644
--- a/modules/build-parser.ts
+++ b/modules/build-parser.ts
@@ -1,9 +1,11 @@
 import { mkdir, readFile, writeFile } from 'node:fs/promises'
 import path from 'node:path'
+import process from 'node:process'
 import { addVitePlugin, defineNuxtModule, useLogger } from '@nuxt/kit'
 import { version } from '@typescript-eslint/parser'
 import { build } from 'esbuild'
 import Replace from 'unplugin-replace/esbuild'
+import type { ConsolaInstance } from 'consola'
 
 const VIRTUAL_ID = '/virtual/typescript-eslint/parser'
 
@@ -19,23 +21,29 @@ export default defineNuxtModule(() => {
     async load(id) {
       if (id !== VIRTUAL_ID) return
 
-      logger.start('Building @typescript-eslint/parser')
-      const result = await buildTsEslint()
-      logger.success('Built @typescript-eslint/parser')
+      const result = await buildTsEslint(logger)
       return result
     },
   })
 })
 
-export async function buildTsEslint() {
+export async function buildTsEslint(logger: ConsolaInstance) {
   const cacheDir = path.resolve(__dirname, `../.nuxt/cache`)
   await mkdir(cacheDir, { recursive: true }).catch(() => null)
   const cachePath = path.resolve(cacheDir, `ts-eslint-parser@${version}.js`)
   const cache = await readFile(cachePath, 'utf8').catch(() => null)
-  if (cache) return cache
+  if (cache) {
+    logger.info(`Using cached @typescript-eslint/parser from ${cachePath}`)
+    return cache
+  }
 
+  logger.start('Building @typescript-eslint/parser')
   const result = await build({
-    entryPoints: ['@typescript-eslint/parser'],
+    stdin: {
+      contents: `export { version, parse } from '@typescript-eslint/parser'`,
+      resolveDir: process.cwd(),
+    },
+    format: 'esm',
     write: false,
     bundle: true,
     platform: 'browser',
@@ -60,9 +68,9 @@ export async function buildTsEslint() {
         values: [{ find: /process\.cwd\(\)/g, replacement: '"/"' }],
       }),
     ],
-    format: 'esm',
   })
   const text = result.outputFiles[0].text
   await writeFile(cachePath, text, 'utf8')
+  logger.success('Built @typescript-eslint/parser')
   return text
 }