Fix #79639 - Preserving the html report options in parallel worker mode

Author: dragoonis

run-tests.php

@@ -3706,6 +3706,7 @@ public function wrapCommand($cmd, $memcheck_filename, $check_all)
     }
 }
 
+
 function init_output_buffers()
 {
     // Delete as much output buffers as possible.
@@ -3738,4 +3739,79 @@ function check_proc_open_function_exists()
     }
 }
 
+class OutputHandler
+{
+
+    /**
+     * @var null|string
+     */
+    private $htmlOutputFilename = null;
+
+    /**
+     * @var null|resource
+     */
+    private $htmlHandle = null;
+
+    /**
+     * @param string $outputFilename
+     */
+    public function setHtmlOutputFilename($outputFilename)
+    {
+        $this->htmlOutputFilename = $outputFilename;
+    }
+
+    public function clearHtmlFile()
+    {
+        ftruncate($this->getHtmlFileHandle(), 0);
+    }
+
+    /**
+     * @return string
+     */
+    public function getHtmlOutputFilename()
+    {
+        if($this->htmlOutputFilename === null) {
+            throw new \Exception('No output filename has been set.');
+        }
+
+        return $this->htmlOutputFilename;
+    }
+
+    /**
+     * @return false|resource
+     */
+    public function getHtmlFileHandle()
+    {
+        if($this->htmlHandle !== null) {
+            return $this->htmlHandle;
+        }
+
+        $this->fileHandle = fopen($this->getHtmlOutputFilename(), 'at+');
+
+        return $this->fileHandle;
+    }
+
+    /**
+     * @return bool
+     */
+    public function isHtmlEnabled()
+    {
+        return !empty($this->getHtmlOutputFilename()) && is_resource($this->getHtmlFileHandle());
+    }
+
+    public function closeHtmlHandle()
+    {
+        fclose($this->getHtmlFileHandle());
+    }
+
+    /**
+     * @param $content
+     */
+    public function writeHtml($content)
+    {
+        fwrite($this->getHtmlFileHandle(), $content);
+    }
+
+}
+
 main();