Add depth option for "file"command

[lcc]

When generating a graph for a file it would be nice to have an option to specify a depth for dependencies. A pratical example would be in a file blahblah.go I have a struct A that has a struct B as a property. When generating the diagram for blahblah.go it would be awesome to be able to specify a depth that followed A properties to a certain depth.
The following command:
go-plantuml generate -f model/blahblah.go --depth=1 -o graph.puml
would then generate a puml file of both blahblah.go as well as of the first level dependencies of A.

Another example would be if depth is 2, it would mean that if B had a dependency C we should be able to request issue go-plantuml generate -f model/blahblah.go --depth=2 -o graph.puml and see the relationships of A, B and C.

[lcc]

IMO this would be super useful for really big projects where the directory recursive generation is not really an option (graphs are too big).

[bykof]

Hi thank you for your request!
Currently I have not the resources to implement this feature. Actually this can be really handy, but you can also do the same stuff by using the -f attribute like:

go-plantuml generate -f model/blahblah.go -f model/a.go -o graph.puml

I know this isn't as cool as using the --depth feature, but maybe it can solve your problem directly ^^