subcomponents {
   first { name: "First";
      path: "first";
      fetch {
         git {
            url: "blah";
            branch: "master";
            shallow: true;
         }
      }
   }
   second { name: "Second";
      path: "second";
      fetch {
         git {
            url: "blah";
            branch: "master";
            shallow: false;
            shallow-submodules: true;
         }
      }
   }
}