Support go.mod files

[andybons]

Support for dep was implemented in #75. The Go ecosystem is moving toward dependencies specified by a go.mod file (https://go.googlesource.com/go/+/master/src/cmd/go/internal/modfile/).

Let me know if there’s any other info I can provide. Thank you.

[znarf]

Do you have an example of a repo with a go.mod?

To implement that, we just need to replicate what was done for dep in https://github.com/opencollective/backyourstack/blob/master/src/lib/dependencies/dep.js

[andybons]

Here’s a rather large one: https://github.com/perkeep/perkeep/blob/master/go.mod

The issue with following what was done with dep is that there’s no JS-native parser for go.mod files. I may spend some time to port the Go impl over so that people have something to build off of.