I have a multi-module app that is already on Github. It is comprised of two modules, one of them an Android app and the other a Rails based Web app. So my project\'s directo
The git subtree command (built in, now) is a good way to do this. If you want to push a subtree of a branch to become your master, you can use something like:
git push --force heroku `git subtree split --prefix web HEAD`:master