fix: Fixed an issue where checkDevServer didn't work with Vite 3, because they removed the intercepting of __vite_ping ([#37](nystudio107/craft-vite#37))

Author: khalwat

src/helpers/FileHelper.php

@@ -14,6 +14,7 @@
 use craft\helpers\UrlHelper;
 use GuzzleHttp\Client;
 use GuzzleHttp\RequestOptions;
+use Psr\Http\Message\ResponseInterface;
 use Throwable;
 use yii\caching\ChainedDependency;
 use yii\caching\FileDependency;
@@ -78,45 +79,54 @@ public static function fetch(string $pathOrUrl, callable $callback = null, strin
             self::CACHE_KEY . $cacheKeySuffix . $pathOrUrl,
             function () use ($pathOrUrl, $callback) {
                 $contents = null;
-                $result = null;
                 if (UrlHelper::isAbsoluteUrl($pathOrUrl)) {
-                    // See if we can connect to the server
-                    $clientOptions = [
-                        RequestOptions::HTTP_ERRORS => false,
-                        RequestOptions::CONNECT_TIMEOUT => 3,
-                        RequestOptions::VERIFY => false,
-                        RequestOptions::TIMEOUT => 5,
-                    ];
-                    $client = new Client($clientOptions);
-                    try {
-                        $response = $client->request('GET', $pathOrUrl, [
-                            RequestOptions::HEADERS => [
-                                'Accept' => '*/*',
-                            ],
-                        ]);
-                        if ($response->getStatusCode() === 200) {
-                            $contents = $response->getBody()->getContents();
-                        }
-                    } catch (Throwable $e) {
-                        Craft::error($e->getMessage(), __METHOD__);
+                    $response = self::fetchResponse($pathOrUrl);
+                    if ($response && $response->getStatusCode() === 200) {
+                        $contents = $response->getBody()->getContents();
                     }
                 } else {
                     $contents = @file_get_contents($pathOrUrl);
                 }
-                if ($contents) {
-                    $result = $contents;
-                    if ($callback) {
-                        $result = $callback($result);
-                    }
+                if ($contents && $callback) {
+                    $contents = $callback($contents);
                 }
 
-                return $result;
+                return $contents;
             },
             $cacheDuration,
             $dependency
         );
     }
 
+    /**
+     * Return a Guzzle ResponseInterface for the passed in $url
+     *
+     * @param string $url
+     * @return ResponseInterface|null
+     */
+    public static function fetchResponse(string $url): ?ResponseInterface
+    {
+        $response = null;
+        $clientOptions = [
+            RequestOptions::HTTP_ERRORS => false,
+            RequestOptions::CONNECT_TIMEOUT => 3,
+            RequestOptions::VERIFY => false,
+            RequestOptions::TIMEOUT => 5,
+        ];
+        $client = new Client($clientOptions);
+        try {
+            $response = $client->request('GET', $url, [
+                RequestOptions::HEADERS => [
+                    'Accept' => '*/*',
+                ],
+            ]);
+        } catch (Throwable $e) {
+            Craft::error($e->getMessage(), __METHOD__);
+        }
+
+        return $response;
+    }
+
     /**
      * Combine a path with a URL to create a URL
      *

src/services/ViteService.php

@@ -172,7 +172,13 @@ public function devServerRunning(): bool
         }
         // Check to see if the dev server is actually running by pinging it
         $url = FileHelper::createUrl($this->devServerInternal, self::VITE_DEVSERVER_PING);
-        $this->devServerRunningCached = !($this->fetch($url) === null);
+        $response = FileHelper::fetchResponse($url);
+        $this->devServerRunningCached = false;
+        // Status code of 200 or 404 means the dev server is running
+        if ($response) {
+            $statusCode = $response->getStatusCode();
+            $this->devServerRunningCached = $statusCode === 200 || $statusCode === 404;
+        }
 
         return $this->devServerRunningCached;
     }
@@ -301,12 +307,12 @@ public function entry(string $path): string
      *
      * @return string
      */
-    public function asset(string $path, bool $public=false): string
+    public function asset(string $path, bool $public = false): string
     {
         if ($this->devServerRunning()) {
             return $this->devServerAsset($path);
         }
-        
+
         if ($public) {
             return $this->publicAsset($path);
         }
@@ -326,7 +332,7 @@ public function devServerAsset(string $path): string
         // Return a URL to the given asset
         return FileHelper::createUrl($this->devServerPublic, $path);
     }
-    
+
     /**
      * Return the URL for the asset from the public Vite folder
      *