This is a simple test repo to explore and demonstrate how nesting a repository inside itself can be used to address a non-encapsulating vendor directory - a situation that can arise when building a proper language package manager.

Our basic file layout here looks like this:

quux.go
bar/
   bar.go
foo/
    baz/
        baz.go
    foo.go
    other.go
    vendor/
        github.com/sdboyer/nesttest/(RECURSION)

foo is the main package, and it calls the single function in each of the other packages (bar, baz, quux), then quits. When run without any vendor directory, this is the output:

Hello from foo/main in main area
Hello from other foo file under main
Hello from bar in main area
Hello from baz in main area
Hello from quux in main area

When run with itself fully replicated under the vendor tree, this is the output:

Hello from foo/main in main area
Hello from other foo file under main
Hello from bar in vendor area
Hello from baz in vendor area
Hello from quux in vendor area

And when run with only the packages not shadowed by the vendor tree (bar and quux), this is the output:

Hello from foo/main in main area
Hello from other foo file under main
Hello from bar in vendor area
Hello from baz in main area
Hello from quux in vendor area

All of this is what we’d want and expect.