NewFilter creates new filter based on rules defined in a configuration file.

NewGoGetFetcher creates fetcher which uses go get tool to fetch modules.

NewVCSLister creates an UpstreamLister which uses VCS to fetch a list of available versions.

Default filter rule does not alter default/parent behavior.

Direct filter rule forces the package to be fetched directly from upstream proxy.

Exclude filter rule excludes package and its children from communication.

Include treats modules the usual way.

Filter is a filter of modules.

Fetcher fetches module from an upstream source.

UpstreamLister retrieves a list of available module versions from upstream i.e.

FilterRule defines behavior of module communication.