Using AppHarbor with Mercurial
Update March 2011: We have added more complete Mercurial support.
Support for the Mercurial source control system is one of the most popular requests on the AppHarbor feedback forum. While we mostly use Git ourselves, we realise Mercurial is very popular amongst .NET developers and it is something we are very keen on supporting well.
Until that support is ready, Mercurial users can follow a short guide which lets them use AppHarbor for hosting their hg-versioned code. The guide requires installing Git and hg-git. We've tried running it through and it only takes 5-10 minutes to set up. Once the setup is complete using hg-git seems pretty workable for deploying to AppHarbor.
We realise this is a work-around and are working hard on supporting Mercurial natively.