The wgo-exec tool executes arbitrary commands, with GOPATH set as appropriate for the current wgo workspace, including those that were build from the current wgo workspace.
In a bash shell, wgo-exec foo bar is equivalent to running GOPATH=$(wgo env GOPATH) foo bar, with the PATH modified to include the various workspace bin directories. However, sometimes it's easier to change a command than to directly change the environment for a command.
The wgo tool is a small wrapper around the go tool. It adds the concept
of a workspace, in addition to that of GOPATH, and several new commands
to manage that workspace.