Refactor how we create the context

internal/cli/geoip/geoip.go

@@ -0,0 +1,44 @@
+package geoip
+
+import (
+	"path/filepath"
+
+	"github.com/alecthomas/kingpin"
+	"github.com/apex/log"
+	"github.com/openobservatory/gooni/internal/cli/root"
+	"github.com/openobservatory/gooni/utils"
+)
+
+func init() {
+	cmd := root.Command("geoip", "Perform a geoip lookup")
+
+	shouldUpdate := cmd.Flag("update", "Update the geoip database").Bool()
+
+	cmd.Action(func(_ *kingpin.ParseContext) error {
+		log.Info("geoip")
+		ctx, err := root.Init()
+		if err != nil {
+			return err
+		}
+
+		geoipPath := filepath.Join(ctx.Home, "geoip")
+
+		if *shouldUpdate {
+			utils.DownloadGeoIPDatabaseFiles(geoipPath)
+		}
+
+		loc, err := utils.GeoIPLookup(geoipPath)
+		if err != nil {
+			return err
+		}
+
+		log.WithFields(log.Fields{
+			"asn":          loc.ASN,
+			"network_name": loc.NetworkName,
+			"country_code": loc.CountryCode,
+			"ip":           loc.IP,
+		}).Info("Looked up your location")
+
+		return nil
+	})
+}