Is there an easy way to delete ALL files/folders in the working directories?

In my build actions I do the following:

Checkout source code to ~/Src
The source is used to build multiple deployables and the action group is not associated to any deployable so the Src is in the root.

In action group for deployable #1 (group assoicated to deployable) I build from the ~/Src folder to default

In action group for deployable #2 (group assoicated to deployable) I build from the ~/Src folder to default

I always want to ensure that the process starts fresh with no files or folders. Is there a easy way to delete everything when the first action starts or do I need to create separate action steps to delete each folder at the beginning of each action group?

Product: BuildMaster
Version: 4.0.9

Your best bet would be to do a "Delete Files (*) From ~/Src" Action.