Fix listing buckets and also figure out how to do so

cli/main.go

@@ -21,6 +21,8 @@ func main() {
 	as.Append(args.STRING, "k", "key", "key")
 	as.Append(args.STRING, "v", "value", "value")
 	as.Append(args.STRING, "ns", "namespace", "")
+	as.Append(args.STRING, "min", "min key to list", "---")
+	as.Append(args.STRING, "max", "max key to list", "}}}")
 	if err := as.Parse(); err != nil {
 		panic(err)
 	}
@@ -40,12 +42,10 @@ func main() {
 	switch strings.ToLower(as.Get("do").GetString()) {
 	case "list":
 		var c []string
-		var ns []string
-		if nss := as.Get("ns").GetString(); len(ns) > 0 {
-			ns = []string{nss}
-		}
-		c, err = db.List(ns, as.Get("k").GetString())
-		b = []byte(fmt.Sprintf("%v", c))
+		ns := strings.Split(as.Get("ns").GetString(), " ")
+		c, err = db.List(ns, as.Get("min").GetString(), as.Get("max").GetString())
+		d := strings.Join(c, "\n\t")
+		b = []byte(fmt.Sprintf("%s", d))
 	case "get":
 		b, err = db.Get(as.Get("k").GetString())
 	case "set":

minio.go

@@ -30,6 +30,9 @@ func (m *Minio) List(ns []string, limits ...string) ([]string, error) {
 	defer close(done)
 	keys := []string{}
 	for resp := range m.db.ListObjects(namespace, "", true, done) {
+		if resp.Err != nil {
+			return keys, resp.Err
+		}
 		if resp.Key < limits[0] {
 			continue
 		} else if resp.Key > limits[1] {