Trac plugin/cronjob to sync Trac groups with Moira/AFS

[adehnert]

Trac has its own permissions system, and associated groups mechanism. Unfortunately, this isn't integrated with Moira, which means that it needs to be maintained independently of projects' usual permissions-granting mechanism. (For example, one of the steps of making somebody a Scripts maintainer is to add them to the "scripts-root" group on ​http://scripts.mit.edu/trac/.) This is often error-prone.

Snippets should have a Trac plugin or standard script that can be put in a cronjob that will automatically sync a Trac group with a Moira/AFS group. (The sync relationships could be maintained explicitly, or we could just automatically sync moira:groupname or something.) Fixing ​http://scripts.mit.edu/trac/ticket/322 might be useful for this, but doing something special-cased would probably be okay.

I suspect that at least Scripts, ASA, and this Trac would happily use such a plugin.