Comment 10 for bug 609187

I've pushed a hackish implementation of a 'bzr check-udd-status' command to lp:~jelmer/bzr-builddeb/check-udd-status.

E.g.:

gwenhwyvar:~% bzr check-udd-status gnumeric
UDD branch is out of date (1.9.9-1ubuntu1 < 1.10.14-1ubuntu2)

It's pretty slow to do this using the API though:
BZR_PLUGINS_AT=builddeb@`pwd` BZR_PDB=1 bzr check-udd-status gnumeric 0.47s user 0.09s system 5% cpu 9.805 total

This would make fetching a UDD branch quite a bit slower. We can presumably avoid opening the actual branch like this command does, but that would still mean something like an extra 5 second overhead for fetching a branch.