Add drupal scaffold

web/vendor/drupal-composer/drupal-scaffold/src/FileFetcher.php

@@ -0,0 +1,47 @@
+<?php
+
+/**
+ * @file
+ * Contains \DrupalComposer\DrupalScaffold\FileFetcher.
+ */
+
+namespace DrupalComposer\DrupalScaffold;
+
+use Composer\Util\Filesystem;
+use Composer\Util\RemoteFilesystem;
+
+class FileFetcher {
+
+  /**
+   * @var \Composer\Util\RemoteFilesystem
+   */
+  protected $remoteFilesystem;
+
+  protected $source;
+  protected $filenames;
+  protected $fs;
+
+  public function __construct(RemoteFilesystem $remoteFilesystem, $source, $filenames = []) {
+    $this->remoteFilesystem = $remoteFilesystem;
+    $this->source = $source;
+    $this->filenames = $filenames;
+    $this->fs = new Filesystem();
+  }
+
+  public function fetch($version, $destination) {
+    array_walk($this->filenames, function ($filename) use ($version, $destination) {
+      $url = $this->getUri($filename, $version);
+      $this->fs->ensureDirectoryExists($destination . '/' . dirname($filename));
+      $this->remoteFilesystem->copy($url, $url, $destination . '/' . $filename);
+    });
+  }
+
+  protected function getUri($filename, $version) {
+    $map = [
+      '{path}' => $filename,
+      '{version}' => $version
+    ];
+    return str_replace(array_keys($map), array_values($map), $this->source);
+  }
+
+}