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vendor/psy/psysh/src/Clipboard/CommandClipboardMethod.php

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+<?php
+
+/*
+ * This file is part of Psy Shell.
+ *
+ * (c) 2012-2026 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Psy\Clipboard;
+
+use Symfony\Component\Console\Output\OutputInterface;
+
+class CommandClipboardMethod implements ClipboardMethod
+{
+    private string $command;
+
+    public function __construct(string $command)
+    {
+        $this->command = $command;
+    }
+
+    public function copy(string $text, OutputInterface $output): bool
+    {
+        $process = \proc_open($this->command, [
+            0 => ['pipe', 'r'],
+            1 => ['pipe', 'w'],
+            2 => ['pipe', 'w'],
+        ], $pipes);
+        if ($process === false) {
+            return false;
+        }
+
+        $success = $this->writeAll($pipes[0], $text);
+        \fclose($pipes[0]);
+
+        // Drain stdout and stderr to prevent the child process from blocking.
+        \stream_get_contents($pipes[1]);
+        \fclose($pipes[1]);
+        \stream_get_contents($pipes[2]);
+        \fclose($pipes[2]);
+
+        return $success && \proc_close($process) === 0;
+    }
+
+    /**
+     * Write the full string to the pipe, returning false on failure.
+     *
+     * @param resource $pipe
+     */
+    private function writeAll($pipe, string $text): bool
+    {
+        $remaining = $text;
+
+        while ($remaining !== '') {
+            $written = \fwrite($pipe, $remaining);
+            if ($written === false || $written === 0) {
+                return false;
+            }
+
+            $remaining = (string) \substr($remaining, $written);
+        }
+
+        return true;
+    }
+}