Given the rather innocuous naming of Go, Google searching for such a package only produces one discernable result for my searches for a Lucene package for Go: this one with no commits.

Does anyone know of any Lucene port for Go?

This Go SOLR library looks rather more promising, I think.

https://github.com/rtt/Go-Solr/

Looks a bit on the lean side, but might get you somewhere.

Or, similar story for this with Elasticsearch:

https://github.com/dustin/go-elasticsearch

You might also look at Apache Lucy, which is a "loose C" port of Lucene.

There is another text indexing library for go, bleve

The features are very similar to lucene.

Indexing

message := struct{
    Id   string
    From string
    Body string
}{
    Id:   "example",
    From: "marty.schoch@gmail.com",
    Body: "bleve indexing is easy",
}

mapping := bleve.NewIndexMapping()
index, err := bleve.New("example.bleve", mapping)
if err != nil {
    panic(err)
}
index.Index(message.Id, message)

Querying

index, _ := bleve.Open("example.bleve")
query := bleve.NewQueryStringQuery("bleve")
searchRequest := bleve.NewSearchRequest(query)
searchResult, _ := index.Search(searchRequest)