Comment 5 for bug 1661324

Looks like Corey Bryant already wrote a similar 'pull-uca-source' script:
http://bazaar.launchpad.net/~ubuntu-dev/ubuntu-dev-tools/trunk/view/head:/pull-uca-source

however that one only uses the LP -staging PPAs, and doesn't support using binary package names. It also pulls the entire list of published sources in the PPA, and checks every single one, which presumably will take a bit longer than querying the PPA for the specific package.