Comment 2 for bug 1662296

This is wider than Unity.

Does the GNOME lookup table work properly with mimeapps.list?

What about other desktop environments?

I think that to get rid of the compatibility files (a good goal), we probably want to in fact do something with session-migration.

Like:

  - packages put a file somewhere saying that they've renamed
  - session-migration updates mimeapps.list
  - DEs or flavours or session-migration ships some kind of hook to update their own sauce in user configs

Problem:

  - session-migration will only run each hook once, so a new package dropping a file in some .d/ directory won't cause the hook to be re-run. That'll need to be overcome somehow.

I don't plan on working on this (at least not right away), so someone else should feel free to pick it up.