repository archive API results: project id vs namespace/projectname
Created by: aadmathijssen
If I understand correctly, the API allows two ways of specifying a project: by id and by namespace/projectname.
When using the repository archive api url (http://doc.gitlab.com/ce/api/repositories.html#get-file-archive), these two ways of specying a project return different results (assuming project foo/bar has id 123):
- 
GET /projects/123/repository/archivereturns atar.gzfile of the tip of the repository (which is what I would expect) - 
GET /projects/foo%2Fbar/repository/archivedoes not return an archive, but shows the following JSON: 
    {
        "RepoPath":"/var/opt/gitlab/git-data/repositories/foo/bar.git",
        "ArchivePrefix":"bar-master-488e92b382b54dfcbe8fbb6398520a9257cae657",
        "ArchivePath":"/var/opt/gitlab/gitlab-rails/shared/cache/archive/bar.git/bar-master-488e92b382b54dfcbe8fbb6398520a9257cae657.tar.gz",
        "CommitId":"488e92b382b54dfcbe8fbb6398520a9257cae657"
    }
I think this is a bug, but I am not sure, since the documentation of the repository archive api only mentions that the id can be specified using "the ID of the project"; it doesn't explicitly state that the namespace/projectname syntax is also supported. On the other hand, this syntax is supported by other api url's that I have used.
I encountered this when using composer to install dependencies from a locally installed GitLab CE 8.3.0 using the GitLab driver. This driver uses the namespace/projectname syntax to download archives.