move reg util to own package (#1523)

* move reg util to own package

* fix test

* fix broken static router

api/router/static/static.go

@@ -16,6 +16,7 @@ import (
 	"github.com/micro/go-micro/v2/logger"
 	"github.com/micro/go-micro/v2/metadata"
 	"github.com/micro/go-micro/v2/registry"
+	util "github.com/micro/go-micro/v2/util/registry"
 )
 
 type endpoint struct {
@@ -164,7 +165,7 @@ func (r *staticRouter) Endpoint(req *http.Request) (*api.Service, error) {
 
 	// hack for stream endpoint
 	if ep.apiep.Stream {
-		svcs := registry.Copy(services)
+		svcs := util.Copy(services)
 		for _, svc := range svcs {
 			if len(svc.Endpoints) == 0 {
 				e := &registry.Endpoint{}

registry/cache/cache.go

@@ -9,6 +9,7 @@ import (
 
 	"github.com/micro/go-micro/v2/logger"
 	"github.com/micro/go-micro/v2/registry"
+	util "github.com/micro/go-micro/v2/util/registry"
 )
 
 // Cache is the registry cache interface
@@ -119,7 +120,7 @@ func (c *cache) get(service string) ([]*registry.Service, error) {
 	// get cache ttl
 	ttl := c.ttls[service]
 	// make a copy
-	cp := registry.Copy(services)
+	cp := util.Copy(services)
 
 	// got services && within ttl so return cache
 	if c.isValid(cp, ttl) {
@@ -152,7 +153,7 @@ func (c *cache) get(service string) ([]*registry.Service, error) {
 
 		// cache results
 		c.Lock()
-		c.set(service, registry.Copy(services))
+		c.set(service, util.Copy(services))
 		c.Unlock()
 
 		return services, nil

util/registry/util.go

@@ -1,7 +1,11 @@
 package registry
 
-func addNodes(old, neu []*Node) []*Node {
-	nodes := make([]*Node, len(neu))
+import (
+	"github.com/micro/go-micro/v2/registry"
+)
+
+func addNodes(old, neu []*registry.Node) []*registry.Node {
+	nodes := make([]*registry.Node, len(neu))
 	// add all new nodes
 	for i, n := range neu {
 		node := *n
@@ -31,8 +35,8 @@ func addNodes(old, neu []*Node) []*Node {
 	return nodes
 }
 
-func delNodes(old, del []*Node) []*Node {
-	var nodes []*Node
+func delNodes(old, del []*registry.Node) []*registry.Node {
+	var nodes []*registry.Node
 	for _, o := range old {
 		var rem bool
 		for _, n := range del {
@@ -49,24 +53,24 @@ func delNodes(old, del []*Node) []*Node {
 }
 
 // CopyService make a copy of service
-func CopyService(service *Service) *Service {
+func CopyService(service *registry.Service) *registry.Service {
 	// copy service
-	s := new(Service)
+	s := new(registry.Service)
 	*s = *service
 
 	// copy nodes
-	nodes := make([]*Node, len(service.Nodes))
+	nodes := make([]*registry.Node, len(service.Nodes))
 	for j, node := range service.Nodes {
-		n := new(Node)
+		n := new(registry.Node)
 		*n = *node
 		nodes[j] = n
 	}
 	s.Nodes = nodes
 
 	// copy endpoints
-	eps := make([]*Endpoint, len(service.Endpoints))
+	eps := make([]*registry.Endpoint, len(service.Endpoints))
 	for j, ep := range service.Endpoints {
-		e := new(Endpoint)
+		e := new(registry.Endpoint)
 		*e = *ep
 		eps[j] = e
 	}
@@ -75,8 +79,8 @@ func CopyService(service *Service) *Service {
 }
 
 // Copy makes a copy of services
-func Copy(current []*Service) []*Service {
-	services := make([]*Service, len(current))
+func Copy(current []*registry.Service) []*registry.Service {
+	services := make([]*registry.Service, len(current))
 	for i, service := range current {
 		services[i] = CopyService(service)
 	}
@@ -84,14 +88,14 @@ func Copy(current []*Service) []*Service {
 }
 
 // Merge merges two lists of services and returns a new copy
-func Merge(olist []*Service, nlist []*Service) []*Service {
-	var srv []*Service
+func Merge(olist []*registry.Service, nlist []*registry.Service) []*registry.Service {
+	var srv []*registry.Service
 
 	for _, n := range nlist {
 		var seen bool
 		for _, o := range olist {
 			if o.Version == n.Version {
-				sp := new(Service)
+				sp := new(registry.Service)
 				// make copy
 				*sp = *o
 				// set nodes
@@ -102,25 +106,25 @@ func Merge(olist []*Service, nlist []*Service) []*Service {
 				srv = append(srv, sp)
 				break
 			} else {
-				sp := new(Service)
+				sp := new(registry.Service)
 				// make copy
 				*sp = *o
 				srv = append(srv, sp)
 			}
 		}
 		if !seen {
-			srv = append(srv, Copy([]*Service{n})...)
+			srv = append(srv, Copy([]*registry.Service{n})...)
 		}
 	}
 	return srv
 }
 
 // Remove removes services and returns a new copy
-func Remove(old, del []*Service) []*Service {
-	var services []*Service
+func Remove(old, del []*registry.Service) []*registry.Service {
+	var services []*registry.Service
 
 	for _, o := range old {
-		srv := new(Service)
+		srv := new(registry.Service)
 		*srv = *o
 
 		var rem bool

util/registry/util_test.go

@@ -3,14 +3,16 @@ package registry
 import (
 	"os"
 	"testing"
+
+	"github.com/micro/go-micro/v2/registry"
 )
 
 func TestRemove(t *testing.T) {
-	services := []*Service{
+	services := []*registry.Service{
 		{
 			Name:    "foo",
 			Version: "1.0.0",
-			Nodes: []*Node{
+			Nodes: []*registry.Node{
 				{
 					Id:      "foo-123",
 					Address: "localhost:9999",
@@ -20,7 +22,7 @@ func TestRemove(t *testing.T) {
 		{
 			Name:    "foo",
 			Version: "1.0.0",
-			Nodes: []*Node{
+			Nodes: []*registry.Node{
 				{
 					Id:      "foo-123",
 					Address: "localhost:6666",
@@ -29,7 +31,7 @@ func TestRemove(t *testing.T) {
 		},
 	}
 
-	servs := Remove([]*Service{services[0]}, []*Service{services[1]})
+	servs := Remove([]*registry.Service{services[0]}, []*registry.Service{services[1]})
 	if i := len(servs); i > 0 {
 		t.Errorf("Expected 0 nodes, got %d: %+v", i, servs)
 	}
@@ -39,11 +41,11 @@ func TestRemove(t *testing.T) {
 }
 
 func TestRemoveNodes(t *testing.T) {
-	services := []*Service{
+	services := []*registry.Service{
 		{
 			Name:    "foo",
 			Version: "1.0.0",
-			Nodes: []*Node{
+			Nodes: []*registry.Node{
 				{
 					Id:      "foo-123",
 					Address: "localhost:9999",
@@ -57,7 +59,7 @@ func TestRemoveNodes(t *testing.T) {
 		{
 			Name:    "foo",
 			Version: "1.0.0",
-			Nodes: []*Node{
+			Nodes: []*registry.Node{
 				{
 					Id:      "foo-123",
 					Address: "localhost:6666",