Is there a way to see if there are updates available from a central Mercurial repostiory before pulling them?

Question

I am using Fabric to deploy my Python application from my local machine. I would like to hit our central Mercurial repository (hosted on BitBucket.org) to see if my local repository is at the same rev as the tip.

Is there a command I can call to see if there are updates available from the repository without actually pulling them? If there are updates, I would like to halt the process so I can manually review things before I either pull down those changes or continue with the deployment.

Answer 1

$ hg help incoming
hg incoming [-p] [-n] [-M] [-f] [-r REV]... [--bundle FILENAME] [SOURCE]

aliases: in

show new changesets found in source

Answer 2

Also, for completeness, you can use a GUI tool, like TortoiseHg, which has the same functionality, but presents the incoming changesets visually, like this: