Open a command prompt and change to the eclipse workspace directory for swirl (probably c:\eclipse\workspace\swirl-workspace)
Type maven console to bring up the maven command line. It will download all the dependencies for maven an Swirl.
At the maven command line, enter eclipse to generate the eclipse project files
In Eclipse, go to Window > Preferences > Java > Classpath Variables and add a new Folder variable named MAVEN_REPO that points to MAVEN_HOME\repository (substitute MAVEN_HOME accordingly)
To compile and run the application, type swirl:run into the maven console