List all available downloader types in exception message.

11 years ago · 5b4a3f9e9f
parent 7c1042eef5
commit 5b4a3f9e9f
1 changed files with 1 additions and 1 deletions
--- a/src/Composer/Downloader/DownloadManager.php
+++ b/src/Composer/Downloader/DownloadManager.php
@ -109,7 +109,7 @@ class DownloadManager
    {
        $type = strtolower($type);
        if (!isset($this->downloaders[$type])) {
-            throw new \InvalidArgumentException('Unknown downloader type: '.$type);
+            throw new \InvalidArgumentException(sprintf('Unknown downloader type: %s. Available types: %s.', $type, implode(', ', array_keys($this->downloaders))));
        }

        return $this->downloaders[$type];