Migrate to tsdown to fix dts output

.prettierrc.js

@@ -1,3 +1,3 @@
-module.exports = {
+export default {
   plugins: ['prettier-plugin-svelte', 'prettier-plugin-astro']
 }

package.json

@@ -1,8 +1,12 @@
 {
   "name": "typescript-eslint-parser-for-extra-files",
   "version": "0.8.0",
+  "type": "module",
   "description": "An experimental ESLint custom parser for Vue, Svelte, and Astro for use with TypeScript. It provides type information in combination with each framework's ESLint custom parser.",
-  "repository": "git+https://github.com/ota-meshi/typescript-eslint-parser-for-extra-files.git",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/ota-meshi/typescript-eslint-parser-for-extra-files.git"
+  },
   "homepage": "https://github.com/ota-meshi/typescript-eslint-parser-for-extra-files#readme",
   "author": "Yosuke Ota (https://github.com/ota-meshi)",
   "funding": "https://github.com/sponsors/ota-meshi",
@@ -11,17 +15,23 @@
   "engines": {
     "node": ">=16.0.0"
   },
-  "main": "lib/index.js",
-  "module": "./lib/index.mjs",
+  "main": "./lib/index.cjs",
+  "module": "./lib/index.js",
+  "types": "./lib/index.d.ts",
   "exports": {
     ".": {
-      "import": "./lib/index.mjs",
-      "require": "./lib/index.js"
+      "module-sync": {
+        "types": "./lib/index.d.ts",
+        "default": "./lib/index.js"
+      },
+      "default": {
+        "types": "./lib/index.d.cts",
+        "default": "./lib/index.cjs"
+      }
     }
   },
-  "types": "./lib/index.d.ts",
   "files": [
-    "lib"
+    "lib/"
   ],
   "keywords": [
     "eslint",
@@ -32,7 +42,7 @@
     "typescript"
   ],
   "scripts": {
-    "build": "tsup",
+    "build": "tsdown",
     "clean": "rimraf .nyc_output lib coverage",
     "cover": "nyc --reporter=lcov yarn test",
     "debug": "yarn mocha \"tests/src/**/*.ts\" --reporter dot --timeout 60000",
@@ -69,6 +79,7 @@
     }
   },
   "dependencies": {
+    "@typescript-eslint/utils": "^8.31.1",
     "tinyglobby": "^0.2.12"
   },
   "devDependencies": {
@@ -107,12 +118,14 @@
     "prettier-plugin-astro": "^0.14.0",
     "prettier-plugin-pkg": "^0.19.0",
     "prettier-plugin-svelte": "^3.0",
+    "publint": "^0.3.12",
     "semver": "^7.3.5",
     "svelte": "^4.0.0",
     "svelte-eslint-parser": "^1.0.0",
     "svelte2tsx": "^0.7.0",
-    "tsup": "^8.0.0",
+    "tsdown": "https://pkg.pr.new/tsdown@03230c4",
     "typescript": "~5.8.0",
+    "unplugin-unused": "^0.4.4",
     "vue": "^3.2.41",
     "vue-eslint-parser": "^10.0.0"
   },

src/index.ts

@@ -4,8 +4,7 @@ import { TSServiceManager } from "./ts";
 import * as tsEslintParser from "@typescript-eslint/parser";
 import { getProjectConfigFiles } from "./utils/get-project-config-files";
 import { resolveProjectList } from "./utils/resolve-project-list";
-export * as meta from "./meta";
-export { name } from "./meta";
+export { default as meta, name } from "./meta";
 
 const DEFAULT_EXTRA_FILE_EXTENSIONS = [".vue", ".svelte", ".astro"];
 const tsServiceManager = new TSServiceManager();

src/meta.ts

@@ -1 +1,8 @@
-export { name, version } from "../package.json";
+import { name as pkgName, version } from "../package.json";
+import { TSESLint } from "@typescript-eslint/utils";
+
+const meta: TSESLint.FlatConfig.PluginMeta = { name: pkgName, version };
+
+export default meta;
+
+export const name: string = pkgName;

tsconfig.json

@@ -3,9 +3,11 @@
     "target": "es2015",
     "strict": true,
     "lib": ["es2020", "DOM"],
-    "module": "Node16",
-    "moduleResolution": "Node16",
+    "module": "Preserve",
+    "moduleResolution": "Bundler",
     "declaration": true,
+    "isolatedModules": true,
+    "isolatedDeclarations": true,
     "noImplicitAny": true,
     "noImplicitReturns": true,
     "noFallthroughCasesInSwitch": true,

tsdown.config.mts

@@ -0,0 +1,11 @@
+import { defineConfig } from "tsdown";
+
+export default defineConfig({
+  entry: ["src/index.ts"],
+  format: ["cjs", "esm"],
+  target: ["node16"],
+  outDir: "lib",
+  skipNodeModulesBundle: true,
+  publint: { strict: true, pack: "npm" },
+  unused: true,
+});