[MRM-408] make sure parent directories exist when making a PUT request

git-svn-id: https://svn.apache.org/repos/asf/maven/archiva/trunk@564511 13f79535-47bb-0310-9956-ffa450edef68

archiva-web/archiva-webapp/src/main/java/org/apache/maven/archiva/web/repository/ProxiedDavServer.java

@@ -135,6 +135,10 @@ public class ProxiedDavServer
         }
         else
         {
+            // Create parent directories that don't exist when writing a file
+            // This actually makes this implementation not compliant to the WebDAV RFC - but we have enough knowledge
+            // about how the collection is being used to do this reasonably and some versions of Maven's WebDAV don't
+            // correctly create the collections themselves.
             File rootDirectory = getRootDirectory();
             if ( rootDirectory != null )
             {