From d559bf5387e49b108150bf4683485885cae0f89d Mon Sep 17 00:00:00 2001
From: Jordi Boggiano <j.boggiano@seld.be>
Date: Wed, 11 Mar 2020 15:33:14 +0100
Subject: [PATCH] Allow configuring a path repo to an empty path as long as
 using wildcards and the wildcard root exists, fixes #8679

---
 src/Composer/Repository/PathRepository.php | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/Composer/Repository/PathRepository.php b/src/Composer/Repository/PathRepository.php
index 4db774579..5b6a770b2 100644
--- a/src/Composer/Repository/PathRepository.php
+++ b/src/Composer/Repository/PathRepository.php
@@ -128,6 +128,17 @@ class PathRepository extends ArrayRepository implements ConfigurableRepositoryIn
         $urlMatches = $this->getUrlMatches();
 
         if (empty($urlMatches)) {
+            if (preg_match('{[*{}]}', $this->url)) {
+                $url = $this->url;
+                while (preg_match('{[*{}]}', $url)) {
+                    $url = dirname($url);
+                }
+                // the parent directory before any wildcard exists, so we assume it is correctly configured but simply empty
+                if (is_dir($url)) {
+                    return;
+                }
+            }
+
             throw new \RuntimeException('The `url` supplied for the path (' . $this->url . ') repository does not exist');
         }