With VS2010 database projects, I could define a target (or not) database, set an action (create script only or create script and deploy to target), execute a "deploy" (through VS or MSBuild) and get a result script.
I never used the "create and deploy" action, because I am only using the resultant script to build an installer and will apply the script later as part of the installation process.
This feature allowed me to create both an upgrade (only the changes since the last version) or a full installation script (if pointed at no target db).
I cannot seem to find the correct combination of options to reproduce this "script only" behavior for upgrades and full installations when using VS 2012 or SSDT in general.
I have found this question which covers how to click the buttons in VS, but it does not address how to get this done in MSBuild.
Can someone point me to a useful resource for this specific configuration?