add error message if vite config file is not present

Author: pzmosquito

README.md

@@ -59,7 +59,7 @@ module.exports = {
   - Required: No
   - Type: string
   - Default: [No Default]
-  - **If you use a function as vite config, you must export a named vite config object.**
+  - **If you use a function as vite config, you must export a named vite config object. This is a result of the limitation of `eslint-plugin-import`.**
   ```js
   /**
    * vite config file

index.js

@@ -1,7 +1,16 @@
 const path = require("path");
 const resolve = require("resolve");
+const fs = require("fs");
+const debug = require("debug");
 
-const log = require("debug")("eslint-plugin-import:resolver:vite");
+const namespace = "eslint-plugin-import:resolver:vite";
+
+const log = debug(namespace);
+
+const logError = (message) => {
+    log(message);
+    console.log(`[${namespace}] ${message}`);
+};
 
 exports.interfaceVersion = 2;
 
@@ -22,7 +31,11 @@ exports.resolve = (source, file, config) => {
 
         // load vite config
         const viteConfigPath = path.resolve(pluginConfig.configPath);
+        if (!fs.existsSync(viteConfigPath)) {
+            logError(`vite config file doesn't exist at '${viteConfigPath}'`);
+        }
         const viteConfigFile = require(viteConfigPath);
+
         let viteConfig;
         if (pluginConfig.namedExport) {
             viteConfig = viteConfigFile[pluginConfig.namedExport]

package.json

@@ -1,6 +1,6 @@
 {
   "name": "eslint-import-resolver-vite",
-  "version": "1.0.3",
+  "version": "1.0.4",
   "description": "Vite module resolution plugin for eslint-plugin-import.",
   "keywords": [
     "eslint",