From af3783b5f40bae32a23e353eaf0a00c9b8ce82e2 Mon Sep 17 00:00:00 2001
From: Markus Staab <markus.staab@redaxo.de>
Date: Mon, 5 Mar 2018 09:34:40 +0100
Subject: [PATCH] properly cache when a branch in a certain revision does not
 contain a composer.json

this prevents requesting/trying to get the composer.json over and over again even if no commits happend

Closes #7156
---
 src/Composer/Repository/Vcs/SvnDriver.php | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/Composer/Repository/Vcs/SvnDriver.php b/src/Composer/Repository/Vcs/SvnDriver.php
index b963f6856..822510601 100644
--- a/src/Composer/Repository/Vcs/SvnDriver.php
+++ b/src/Composer/Repository/Vcs/SvnDriver.php
@@ -133,7 +133,16 @@ class SvnDriver extends VcsDriver
                 return $this->infoCache[$identifier] = JsonFile::parseJson($res);
             }
 
-            $composer = $this->getBaseComposerInformation($identifier);
+            try {
+                $composer = $this->getBaseComposerInformation($identifier);
+            } catch(TransportException $e) {
+                $message = $e->getMessage();
+                if (stripos($message, 'path not found') === false && stripos($message, 'svn: warning: W160013') === false) {
+                    throw $e;
+                }
+                // remember a not-existent composer.json
+                $composer = '';
+            }
 
             if ($this->shouldCache($identifier)) {
                 $this->cache->write($identifier.'.json', json_encode($composer));