golicenses

This is an experimental package to lookup the license for a Go package.

This is not guaranteed to work, to update regularly, or to continue to have the same API. At a minimum, I'll probably change the repo name if I can think of something better.

For example:

lic, _ := golicenses.Get("github.com/google/go-containerregistry")
fmt.Println(lic)

prints

Apache-2.0

This is based on the public BigQuery dataset provided by https://deps.dev/. See How are licenses determined? for more information.

This repo periodically queries the public dataset and regenerates licenses.csv, which is gzipped and //go:embeded into the package.

The result is a ~3MB dependency that can be loaded and queried in ~200ms the first time -- subsequent calls take microseconds.

There are almost certainly more optimizations that could improve both size and query time. PRs welcome!