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vendor/league/flysystem/src/Adapter/Polyfill/StreamedCopyTrait.php

@@ -0,0 +1,49 @@
+<?php
+
+namespace League\Flysystem\Adapter\Polyfill;
+
+use League\Flysystem\Config;
+
+trait StreamedCopyTrait
+{
+    /**
+     * Copy a file.
+     *
+     * @param string $path
+     * @param string $newpath
+     *
+     * @return bool
+     */
+    public function copy($path, $newpath)
+    {
+        $response = $this->readStream($path);
+
+        if ($response === false || ! is_resource($response['stream'])) {
+            return false;
+        }
+
+        $result = $this->writeStream($newpath, $response['stream'], new Config());
+
+        if ($result !== false && is_resource($response['stream'])) {
+            fclose($response['stream']);
+        }
+
+        return $result !== false;
+    }
+
+    // Required abstract method
+
+    /**
+     * @param  string   $path
+     * @return resource
+     */
+    abstract public function readStream($path);
+
+    /**
+     * @param  string   $path
+     * @param  resource $resource
+     * @param  Config   $config
+     * @return resource
+     */
+    abstract public function writeStream($path, $resource, Config $config);
+}