swarm: multiple --ens-api flags

Allow multiple --ens-api flags to be specified with value format
[tld:][contract-addr@]url.

Backward compatibility with only one --ens-api flag and --ens-addr
flag is preserved and conflict cases are handled:

 - multiple --ens-api with --ens-addr returns an error

 - single --ens-api with contract address and --ens-addr with
   different contract address returns an error

Previously implemented --ens-endpoint is removed. Its functionality
is replaced with multiple --ens-api flags.

1 files changed, 2 insertions, 2 deletions

diff --git a/cmd/swarm/main_test.go b/cmd/swarm/main_test.go
index 054034434..f815f3387 100644
--- a/cmd/swarm/main_test.go
+++ b/cmd/swarm/main_test.go
@@ -22,7 +22,7 @@ import (
 	"github.com/ethereum/go-ethereum/swarm"
 )
 
-func TestParseFlagEnsEndpoint(t *testing.T) {
+func TestParseFlagEnsAPI(t *testing.T) {
 	for _, x := range []struct {
 		description string
 		value       string
@@ -126,7 +126,7 @@ func TestParseFlagEnsEndpoint(t *testing.T) {
 		},
 	} {
 		t.Run(x.description, func(t *testing.T) {
-			config := parseFlagEnsEndpoint(x.value)
+			config := parseFlagEnsAPI(x.value)
 			if config.Endpoint != x.config.Endpoint {
 				t.Errorf("expected Endpoint %q, got %q", x.config.Endpoint, config.Endpoint)
 			}