Given a checked-out Git repository known to Diffusion, how do I find a unique identifier for the repository within Phabricator? Ideally, the repository's callsign, or its PHID.
I used to run `arc which` and look for the callsign, but recently the output of this command was changed to give the name of the repository instead.
I want this information so that I can feed it into the [[ https://secure.phabricator.com/conduit/method/diffusion.looksoon/ | `diffusion.looksoon` ]] API method. I would like to create an alias `arc looksoon` that I could occasionally use.