PHP 8 Compatibility

vendor/symfony/console/Output/StreamOutput.php

@@ -12,7 +12,6 @@
 namespace Symfony\Component\Console\Output;
 
 use Symfony\Component\Console\Exception\InvalidArgumentException;
-use Symfony\Component\Console\Exception\RuntimeException;
 use Symfony\Component\Console\Formatter\OutputFormatterInterface;
 
 /**
@@ -71,13 +70,10 @@ class StreamOutput extends Output
     protected function doWrite($message, $newline)
     {
         if ($newline) {
-            $message .= PHP_EOL;
+            $message .= \PHP_EOL;
         }
 
-        if (false === @fwrite($this->stream, $message)) {
-            // should never happen
-            throw new RuntimeException('Unable to write output.');
-        }
+        @fwrite($this->stream, $message);
 
         fflush($this->stream);
     }
@@ -97,6 +93,11 @@ class StreamOutput extends Output
      */
     protected function hasColorSupport()
     {
+        // Follow https://no-color.org/
+        if (isset($_SERVER['NO_COLOR']) || false !== getenv('NO_COLOR')) {
+            return false;
+        }
+
         if ('Hyper' === getenv('TERM_PROGRAM')) {
             return true;
         }