Remove `ensure_storage_path_exists` from gitlab-ce
as discussed in #1807 (comment 208197834), the first step to deprecating the Namespace service is to get rid of ensure_storage_path_exists
calls
There are two parts to this issue:
- Modify RenameNamespace to create the parent directory of the destination dir
- Remove calls to
ensure_storage_path_exists
calls in gitlab-ce
Edited by John Cai