From 25ffafc9eb5f4ab1aeffe1c3a6ce155c95894269 Mon Sep 17 00:00:00 2001
From: Joel Pittet <joel@pittet.ca>
Date: Thu, 28 Sep 2017 21:38:06 +0200
Subject: [PATCH] fall back to uri on alias record for site install (#2981)

---
 src/Commands/core/SiteInstallCommands.php | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/Commands/core/SiteInstallCommands.php b/src/Commands/core/SiteInstallCommands.php
index 0f6c4e19fc..6714e1f61a 100644
--- a/src/Commands/core/SiteInstallCommands.php
+++ b/src/Commands/core/SiteInstallCommands.php
@@ -266,12 +266,13 @@ public function pre(CommandData $commandData)
 
         $aliasRecord = $this->siteAliasManager()->getSelf();
 
-
-        // @todo The function below is inscrutable. Would rather not port it. Please pass --sites-subdir for now.
-        // $sites_subdir = drush_sitealias_local_site_path($aliasRecord->legacyRecord());
+        $dir = $commandData->input()->getOption('sites-subdir');
+        if (!$dir) {
+            $dir = $aliasRecord->get('uri');
+        }
 
         // Override with sites-subdir if specified.
-        if ($dir = $commandData->input()->getOption('sites-subdir')) {
+        if ($dir) {
             $sites_subdir = "sites/$dir";
         }
         if (empty($sites_subdir)) {