Merge branch 'go-kratos:main' into main

.github/ISSUE_TEMPLATE/feature-request.md

@@ -43,7 +43,7 @@ example:
 ### Requirements description of the feature
 <!--
 example:
-    The event interface should be added to Kratos. The interface should contain subscribers and publishers, and the message body should contain key value heade
+    The event interface should be added to Kratos. The interface should contain subscribers and publishers, and the message body should contain key value head
 -->
 ### References
 <!--

.github/workflows/go.yml

@@ -13,7 +13,7 @@ jobs:
   build:
     strategy:
       matrix:
-        go: [1.16, 1.17, 1.18]
+        go: [1.16, 1.17, 1.18, 1.19]
     name: build & test
     runs-on: ubuntu-latest
     services:
@@ -25,11 +25,11 @@ jobs:
           ETCD_LISTEN_CLIENT_URLS: http://0.0.0.0:2379
           ETCD_ADVERTISE_CLIENT_URLS: http://0.0.0.0:2379
       consul:
-        image: consul:latest
+        image: consul:1.12.3
         ports:
           - 8500:8500
       nacos:
-        image: nacos/nacos-server:latest
+        image: nacos/nacos-server:v2.1.0
         env:
           MODE: standalone
         ports:
@@ -44,7 +44,7 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - name: Set up Go
-        uses: actions/setup-go@v3.2.1
+        uses: actions/setup-go@v3.3.0
         with:
           go-version: ${{ matrix.go }}
 

.gitignore

@@ -3,7 +3,6 @@
 *.exe
 *.exe~
 *.dll
-*.so
 *.dylib
 
 # Test binary, built with `go test -c`

.golangci.yml

@@ -31,6 +31,7 @@ linters:
     - varcheck
     - whitespace
     - wastedassign
+    - unconvert
 
   # don't enable:
   # - asciicheck
@@ -66,3 +67,5 @@ linters-settings:
   gocyclo:
     # recommend 10-20
     min-complexity: 50
+  goimports:
+    local-prefixes: github.com/go-kratos/kratos # Put imports beginning with prefix after 3rd-party packages

CONTRIBUTING.md

@@ -1,7 +1,7 @@
 The kratos community wants to be helped by a wide range of developers, so you'd like to take a few minutes to read this guide before you mention the problem or pull request.
 
-## Reportings Bug or Fixing Bugs
-We use github issues to manage issues. If you want to submit , first make sure you've searched for existing issues, pull requests and read our [FAQ](https://go-kratos.dev/docs/intro/faq).
+## Reporting Bug or Fixing Bugs
+We use GitHub issues to manage issues. If you want to submit , first make sure you've searched for existing issues, pull requests and read our [FAQ](https://go-kratos.dev/docs/intro/faq).
 
 When submitting a bug report, use the issue template we provide to clearly describe the problems encountered and how to reproduce, and if convenient it is best to provide a minimal reproduce repository.
 
@@ -16,9 +16,9 @@ After the function is implemented, a merge request will be initiated to associat
 After the merge is completed, Close all issues.
 
 ## How to submit code
-If you've never submitted code on github, follow these steps:
+If you've never submitted code on GitHub, follow these steps:
 
-- First, please fork items to your github account
+- First, please fork items to your GitHub account
 - Then create a new feature branch based on the main branch and name it features such as feature-log 
 - Write code
 - Submit code to the far end branch

Makefile

@@ -76,4 +76,9 @@ test-coverage:
 .PHONY: lint
 lint: $(LINTER)
 	@${TOOLS_SHELL} lint
-	@echo "lint check finished"
+	@echo "lint check finished"
+
+.PHONY: proto
+proto:
+	protoc --proto_path=./api --proto_path=./third_party --go_out=paths=source_relative:./api --go-grpc_out=paths=source_relative:./api --go-http_out=paths=source_relative:./api metadata/metadata.proto
+	protoc --proto_path=./third_party --go_out=paths=source_relative:./ errors/errors.proto

README.md

@@ -17,21 +17,21 @@
 
 ## About Kratos
   
-> The name is inspired by the game God of War which is based on Greek myths, tells the adventures of Kratos who became a god of war from a mortal and launched a god-killing slaughter.
+> The name is inspired by the Greek-mythology-based game "God of War". It tells the adventures of Kratos becoming a god of war from a mortal and launching a god-killing slaughter.
 
 Kratos is a microservice-oriented governance framework implemented by golang, which offers convenient capabilities to help you quickly build a bulletproof application from scratch, such as:
 
 - The [communication protocol](https://go-kratos.dev/en/docs/component/api) is based on the HTTP/gRPC through the definition of Protobuf.
-- Abstract [transport](https://go-kratos.dev/en/docs/component/transport/overview) layer are support: [HTTP](https://go-kratos.dev/en/docs/component/transport/http) / [gRPC](https://go-kratos.dev/en/docs/component/transport/grpc).
-- Powerful [middleware](https://go-kratos.dev/en/docs/component/middleware/overview) design, support: [Tracing (OpenTelemetry)](https://go-kratos.dev/en/docs/component/middleware/tracing)、[Metrics (Prometheus is default)](https://go-kratos.dev/en/docs/component/middleware/metrics)、[Recovery](https://go-kratos.dev/en/docs/component/middleware/recovery) and more.
+- Abstract [transport](https://go-kratos.dev/en/docs/component/transport/overview) layer support: [HTTP](https://go-kratos.dev/en/docs/component/transport/http) / [gRPC](https://go-kratos.dev/en/docs/component/transport/grpc).
+- Powerful [middleware](https://go-kratos.dev/en/docs/component/middleware/overview) design, support: [Tracing (OpenTelemetry)](https://go-kratos.dev/en/docs/component/middleware/tracing), [Metrics (Prometheus is default)](https://go-kratos.dev/en/docs/component/middleware/metrics), [Recovery](https://go-kratos.dev/en/docs/component/middleware/recovery) and more.
 - [Registry](https://go-kratos.dev/en/docs/component/registry) interface able to be connected with various other centralized registries through plug-ins.
-- The [standard log interfaces](https://go-kratos.dev/en/docs/component/log) ease the integration of the third-party log libs and logs are collected through the *Fluentd*.
-- The selection of the content [encoding](https://go-kratos.dev/en/docs/component/encoding) is automatically supported by Accept and Content-Type.
+- The [standard log interfaces](https://go-kratos.dev/en/docs/component/log) ease the integration of the third-party log libs with logs collected through the *Fluentd*.
+- Automatically support the selection of the content [encoding](https://go-kratos.dev/en/docs/component/encoding) with Accept and Content-Type.
 - Multiple data sources are supported for [configurations](https://go-kratos.dev/en/docs/component/config) and dynamic configurations (use atomic operations).
-- In the protocol of HTTP/gRPC, use uniform [metadata](https://go-kratos.dev/en/docs/component/metadata) transfer method.
+- In the protocol of HTTP/gRPC, use the uniform [metadata](https://go-kratos.dev/en/docs/component/metadata) transfer method.
 - You can define [errors](https://go-kratos.dev/en/docs/component/errors/) in protos and generate enums with protoc-gen-go.
-- You can define [verification rules](https://go-kratos.dev/en/docs/component/middleware/validate) in Protobuf which is supported by HTTP/gRPC service.
-- [Swagger API](https://go-kratos.dev/en/docs/guide/openapi) generated Automatically and embed Swagger UI endpoint can be started by adding [Swagger plugin](https://github.com/go-kratos/swagger-api).
+- You can define [verification rules](https://go-kratos.dev/en/docs/component/middleware/validate) in Protobuf supported by the HTTP/gRPC service.
+- [Swagger API](https://go-kratos.dev/en/docs/guide/openapi) is generated Automatically and embed Swagger UI endpoint can be started by adding [Swagger plugin](https://github.com/go-kratos/swagger-api).
 
 Kratos is accessible, powerful, and provides tools required for large, robust applications.
 
@@ -39,7 +39,7 @@ Kratos is accessible, powerful, and provides tools required for large, robust ap
 
 Kratos has the most extensive and thorough [documentation](https://go-kratos.dev/en/docs/getting-started/start) and [example](https://github.com/go-kratos/examples) library of all modern web application frameworks, making it a breeze to get started with the framework.
 
-We also provide a [modern template](https://github.com/go-kratos/kratos-layout), This template should help reduce the work required to setup up a modern project.
+We also provide a [modern template](https://github.com/go-kratos/kratos-layout). This template should help reduce the work required to setup up modern projects.
 
 ### Goals
 
@@ -47,13 +47,13 @@ Kratos boosts your productivity. With the integration of excellent resources and
 
 ### Principles
 
-* **Simple**: Appropriate design, plain and easy code.
+* **Simple**: Appropriate design with plain and easy code.
 * **General**: Cover the various utilities for business development.
 * **Highly efficient**: Speeding up the efficiency of businesses upgrading.
-* **Stable**: The base libs validated in the production environment which have the characters of the high testability, high coverage as well as high security and reliability.
+* **Stable**: The base libs validated in the production environment have the characteristics of high testability, high coverage as well as high security and reliability.
 * **Robust**: Eliminating misusing through high quality of the base libs.
 * **High-performance**: Optimal performance excluding the optimization of hacking in case of *unsafe*. 
-* **Expandability**: Properly designed interfaces, you can expand utilities such as base libs to meet your further requirements.
+* **Expandability**: Properly designed interfaces where you can expand utilities such as base libs to meet your further requirements.
 * **Fault-tolerance**: Designed against failure, enhance the understanding and exercising of SRE within Kratos to achieve more robustness.
 * **Toolchain**: Includes an extensive toolchain, such as the code generation of cache, the lint tool, and so forth.
 
@@ -90,7 +90,6 @@ If you discover a security vulnerability within Kratos, please send an e-mail to
 - [Wechat Group](https://github.com/go-kratos/kratos/issues/682)
 - [Discord Group](https://discord.gg/BWzJsUJ)
 - [go-kratos.dev](https://go-kratos.dev/en)
-- QQ Group: 716486124
 
 ## Contributors
 

api/metadata/server.go

@@ -9,19 +9,17 @@ import (
 	"io"
 	"sync"
 
-	"github.com/go-kratos/kratos/v2/log"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
 	"google.golang.org/protobuf/proto"
 	"google.golang.org/protobuf/reflect/protodesc"
-	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	"google.golang.org/protobuf/reflect/protoreflect"
 	"google.golang.org/protobuf/reflect/protoregistry"
 	dpb "google.golang.org/protobuf/types/descriptorpb"
-)
 
-//nolint:lll
-//go:generate protoc --proto_path=. --proto_path=../../third_party --go_out=paths=source_relative:. --go-grpc_out=paths=source_relative:. --go-http_out=paths=source_relative:. metadata.proto
+	"github.com/go-kratos/kratos/v2/log"
+)
 
 // Server is api meta server
 type Server struct {
@@ -105,7 +103,10 @@ func (s *Server) ListServices(ctx context.Context, in *ListServicesRequest) (*Li
 	if err := s.load(); err != nil {
 		return nil, err
 	}
-	reply := new(ListServicesReply)
+	reply := &ListServicesReply{
+		Services: make([]string, 0, len(s.services)),
+		Methods:  make([]string, 0, len(s.methods)),
+	}
 	for name := range s.services {
 		reply.Services = append(reply.Services, name)
 	}

app.go

@@ -101,7 +101,7 @@ func (a *App) Run() error {
 		})
 		wg.Add(1)
 		eg.Go(func() error {
-			wg.Done()
+			wg.Done() // here is to ensure server start has begun running before register, so defer is not needed
 			return srv.Start(NewContext(a.opts.ctx, a))
 		})
 	}

app_test.go

@@ -2,7 +2,7 @@ package kratos
 
 import (
 	"context"
-	"fmt"
+	"errors"
 	"net/url"
 	"reflect"
 	"sync"
@@ -21,7 +21,7 @@ type mockRegistry struct {
 
 func (r *mockRegistry) Register(ctx context.Context, service *registry.ServiceInstance) error {
 	if service == nil || service.ID == "" {
-		return fmt.Errorf("no service id")
+		return errors.New("no service id")
 	}
 	r.lk.Lock()
 	defer r.lk.Unlock()
@@ -34,7 +34,7 @@ func (r *mockRegistry) Deregister(ctx context.Context, service *registry.Service
 	r.lk.Lock()
 	defer r.lk.Unlock()
 	if r.service[service.ID] == nil {
-		return fmt.Errorf("deregister service not found")
+		return errors.New("deregister service not found")
 	}
 	delete(r.service, service.ID)
 	return nil

cmd/kratos/internal/base/mod_test.go

@@ -1,6 +1,9 @@
 package base
 
-import "testing"
+import (
+	"os"
+	"testing"
+)
 
 func TestModuleVersion(t *testing.T) {
 	v, err := ModuleVersion("golang.org/x/mod")
@@ -9,3 +12,32 @@ func TestModuleVersion(t *testing.T) {
 	}
 	t.Log(v)
 }
+
+func TestModulePath(t *testing.T) {
+	if err := os.Mkdir("/tmp/test_mod", os.ModePerm); err != nil {
+		t.Fatal(err)
+	}
+
+	defer os.RemoveAll("/tmp/test_mod")
+
+	f, err := os.Create("/tmp/test_mod/go.mod")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	mod := `module github.com/go-kratos/kratos/v2
+
+go 1.16`
+	_, err = f.WriteString(mod)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	p, err := ModulePath("/tmp/test_mod/go.mod")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if p != "github.com/go-kratos/kratos/v2" {
+		t.Fatalf("want: %s, got: %s", "module github.com/go-kratos/kratos/v2", p)
+	}
+}

cmd/kratos/internal/base/repo.go

@@ -3,13 +3,15 @@ package base
 import (
 	"context"
 	"fmt"
-	stdurl "net/url"
+	"net"
 	"os"
 	"os/exec"
 	"path"
 	"strings"
 )
 
+var unExpandVarPath = []string{"~", ".", ".."}
+
 // Repo is git repository manager.
 type Repo struct {
 	url    string
@@ -18,27 +20,21 @@ type Repo struct {
 }
 
 func repoDir(url string) string {
-	if !strings.Contains(url, "//") {
-		url = "//" + url
-	}
-	if strings.HasPrefix(url, "//git@") {
-		url = "ssh:" + url
-	} else if strings.HasPrefix(url, "//") {
-		url = "https:" + url
+	vcsURL, err := ParseVCSUrl(url)
+	if err != nil {
+		return url
 	}
-	u, err := stdurl.Parse(url)
-	if err == nil {
-		url = fmt.Sprintf("%s://%s%s", u.Scheme, u.Hostname(), u.Path)
+	// check host contains port
+	host, _, err := net.SplitHostPort(vcsURL.Host)
+	if err != nil {
+		host = vcsURL.Host
 	}
-	var start int
-	start = strings.Index(url, "//")
-	if start == -1 {
-		start = strings.Index(url, ":") + 1
-	} else {
-		start += 2
+	for _, p := range unExpandVarPath {
+		host = strings.TrimLeft(host, p)
 	}
-	end := strings.LastIndex(url, "/")
-	return url[start:end]
+	dir := path.Base(path.Dir(vcsURL.Path))
+	url = fmt.Sprintf("%s/%s", host, dir)
+	return url
 }
 
 // NewRepo new a repository manager.

cmd/kratos/internal/base/repo_test.go

@@ -7,7 +7,37 @@ import (
 )
 
 func TestRepo(t *testing.T) {
-	os.RemoveAll("/tmp/test_repo")
+	urls := []string{
+		// ssh://[user@]host.xz[:port]/path/to/repo.git/
+		"ssh://git@github.com:7875/go-kratos/kratos.git",
+		// git://host.xz[:port]/path/to/repo.git/
+		"git://github.com:7875/go-kratos/kratos.git",
+		// http[s]://host.xz[:port]/path/to/repo.git/
+		"https://github.com:7875/go-kratos/kratos.git",
+		// ftp[s]://host.xz[:port]/path/to/repo.git/
+		"ftps://github.com:7875/go-kratos/kratos.git",
+		//[user@]host.xz:path/to/repo.git/
+		"git@github.com:go-kratos/kratos.git",
+		// ssh://[user@]host.xz[:port]/~[user]/path/to/repo.git/
+		"ssh://git@github.com:7875/go-kratos/kratos.git",
+		// git://host.xz[:port]/~[user]/path/to/repo.git/
+		"git://github.com:7875/go-kratos/kratos.git",
+		//[user@]host.xz:/~[user]/path/to/repo.git/
+		"git@github.com:go-kratos/kratos.git",
+		///path/to/repo.git/
+		"//github.com/go-kratos/kratos.git",
+		// file:///path/to/repo.git/
+		"file://./github.com/go-kratos/kratos.git",
+	}
+	for _, url := range urls {
+		dir := repoDir(url)
+		if dir != "github.com/go-kratos" && dir != "/go-kratos" {
+			t.Fatal(url, "repoDir test failed", dir)
+		}
+	}
+}
+
+func TestRepoClone(t *testing.T) {
 	r := NewRepo("https://github.com/go-kratos/service-layout.git", "")
 	if err := r.Clone(context.Background()); err != nil {
 		t.Fatal(err)
@@ -15,19 +45,7 @@ func TestRepo(t *testing.T) {
 	if err := r.CopyTo(context.Background(), "/tmp/test_repo", "github.com/go-kratos/kratos-layout", nil); err != nil {
 		t.Fatal(err)
 	}
-	urls := []string{
-		"ssh://git@gitlab.xxx.com:1234/foo/bar.git",
-		"ssh://gitlab.xxx.com:1234/foo/bar.git",
-		"//git@gitlab.xxx.com:1234/foo/bar.git",
-		"git@gitlab.xxx.com:1234/foo/bar.git",
-		"gitlab.xxx.com:1234/foo/bar.git",
-		"gitlab.xxx.com/foo/bar.git",
-		"gitlab.xxx.com/foo/bar",
-	}
-	for _, url := range urls {
-		dir := repoDir(url)
-		if dir != "gitlab.xxx.com/foo" {
-			t.Fatal("repoDir test failed", dir)
-		}
-	}
+	t.Cleanup(func() {
+		os.RemoveAll("/tmp/test_repo")
+	})
 }

cmd/kratos/internal/base/vcs_url.go

@@ -0,0 +1,58 @@
+package base
+
+import (
+	"errors"
+	"net/url"
+	"regexp"
+	"strings"
+)
+
+var (
+	scpSyntaxRe = regexp.MustCompile(`^([a-zA-Z0-9_]+)@([a-zA-Z0-9._-]+):(.*)$`)
+	scheme      = []string{"git", "https", "http", "git+ssh", "ssh", "file", "ftp", "ftps"}
+)
+
+// ParseVCSUrl ref https://github.com/golang/go/blob/master/src/cmd/go/internal/vcs/vcs.go
+// see https://go-review.googlesource.com/c/go/+/12226/
+// git url define https://git-scm.com/docs/git-clone#_git_urls
+func ParseVCSUrl(repo string) (*url.URL, error) {
+	var (
+		repoURL *url.URL
+		err     error
+	)
+
+	if m := scpSyntaxRe.FindStringSubmatch(repo); m != nil {
+		// Match SCP-like syntax and convert it to a URL.
+		// Eg, "git@github.com:user/repo" becomes
+		// "ssh://git@github.com/user/repo".
+		repoURL = &url.URL{
+			Scheme: "ssh",
+			User:   url.User(m[1]),
+			Host:   m[2],
+			Path:   m[3],
+		}
+	} else {
+		if !strings.Contains(repo, "//") {
+			repo = "//" + repo
+		}
+		if strings.HasPrefix(repo, "//git@") {
+			repo = "ssh:" + repo
+		} else if strings.HasPrefix(repo, "//") {
+			repo = "https:" + repo
+		}
+		repoURL, err = url.Parse(repo)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	// Iterate over insecure schemes too, because this function simply
+	// reports the state of the repo. If we can't see insecure schemes then
+	// we can't report the actual repo URL.
+	for _, s := range scheme {
+		if repoURL.Scheme == s {
+			return repoURL, nil
+		}
+	}
+	return nil, errors.New("unable to parse repo url")
+}

cmd/kratos/internal/base/vcs_url_test.go

@@ -0,0 +1,55 @@
+package base
+
+import (
+	"net"
+	"strings"
+	"testing"
+)
+
+func TestParseVCSUrl(t *testing.T) {
+	repos := []string{
+		// ssh://[user@]host.xz[:port]/path/to/repo.git/
+		"ssh://git@github.com:7875/go-kratos/kratos.git",
+		// git://host.xz[:port]/path/to/repo.git/
+		"git://github.com:7875/go-kratos/kratos.git",
+		// http[s]://host.xz[:port]/path/to/repo.git/
+		"https://github.com:7875/go-kratos/kratos.git",
+		// ftp[s]://host.xz[:port]/path/to/repo.git/
+		"ftps://github.com:7875/go-kratos/kratos.git",
+		//[user@]host.xz:path/to/repo.git/
+		"git@github.com:go-kratos/kratos.git",
+		// ssh://[user@]host.xz[:port]/~[user]/path/to/repo.git/
+		"ssh://git@github.com:7875/go-kratos/kratos.git",
+		// git://host.xz[:port]/~[user]/path/to/repo.git/
+		"git://github.com:7875/go-kratos/kratos.git",
+		//[user@]host.xz:/~[user]/path/to/repo.git/
+		"git@github.com:go-kratos/kratos.git",
+		///path/to/repo.git/
+		"~/go-kratos/kratos.git",
+		// file:///path/to/repo.git/
+		"file://~/go-kratos/kratos.git",
+	}
+	for _, repo := range repos {
+		url, err := ParseVCSUrl(repo)
+		if err != nil {
+			t.Fatal(repo, err)
+		}
+		urlPath := strings.TrimLeft(url.Path, "/")
+		if urlPath != "go-kratos/kratos.git" {
+			t.Fatal(repo, "parse url failed", urlPath)
+		}
+	}
+}
+
+func TestParseSsh(t *testing.T) {
+	repo := "ssh://git@github.com:7875/go-kratos/kratos.git"
+	url, err := ParseVCSUrl(repo)
+	if err != nil {
+		t.Fatal(err)
+	}
+	host, _, err := net.SplitHostPort(url.Host)
+	if err != nil {
+		host = url.Host
+	}
+	t.Log(host, url.Path)
+}

cmd/kratos/internal/change/get.go

@@ -59,9 +59,10 @@ func (g *GithubAPI) GetReleaseInfo(version string) ReleaseInfo {
 func (g *GithubAPI) GetCommitsInfo() []CommitInfo {
 	info := g.GetReleaseInfo("latest")
 	page := 1
+	prePage := 100
 	var list []CommitInfo
 	for {
-		url := fmt.Sprintf("https://api.github.com/repos/%s/%s/commits?pre_page=100&page=%d&since=%s", g.Owner, g.Repo, page, info.PublishedAt)
+		url := fmt.Sprintf("https://api.github.com/repos/%s/%s/commits?pre_page=%d&page=%d&since=%s", g.Owner, g.Repo, prePage, page, info.PublishedAt)
 		resp, code := requestGithubAPI(url, "GET", nil, g.Token)
 		if code != http.StatusOK {
 			printGithubErrorInfo(resp)
@@ -72,7 +73,7 @@ func (g *GithubAPI) GetCommitsInfo() []CommitInfo {
 			fatal(err)
 		}
 		list = append(list, res...)
-		if len(res) < http.StatusContinue {
+		if len(res) < prePage {
 			break
 		}
 		page++

cmd/kratos/internal/change/get_test.go

@@ -0,0 +1,25 @@
+package change
+
+import "testing"
+
+func TestParseGithubURL(t *testing.T) {
+	urls := []struct {
+		url   string
+		owner string
+		repo  string
+	}{
+		{"https://github.com/go-kratos/kratos.git", "go-kratos", "kratos"},
+		{"https://github.com/go-kratos/kratos", "go-kratos", "kratos"},
+		{"git@github.com:go-kratos/kratos.git", "go-kratos", "kratos"},
+		{"https://github.com/go-kratos/go-kratos.dev.git", "go-kratos", "go-kratos.dev"},
+	}
+	for _, url := range urls {
+		owner, repo := ParseGithubURL(url.url)
+		if owner != url.owner {
+			t.Fatalf("owner want: %s, got: %s", owner, url.owner)
+		}
+		if repo != url.repo {
+			t.Fatalf("repo want: %s, got: %s", repo, url.repo)
+		}
+	}
+}

cmd/kratos/internal/project/add.go

@@ -8,6 +8,7 @@ import (
 
 	"github.com/AlecAivazis/survey/v2"
 	"github.com/fatih/color"
+
 	"github.com/go-kratos/kratos/cmd/kratos/v2/internal/base"
 )
 

cmd/kratos/internal/project/project.go

@@ -9,8 +9,9 @@ import (
 	"time"
 
 	"github.com/AlecAivazis/survey/v2"
-	"github.com/go-kratos/kratos/cmd/kratos/v2/internal/base"
 	"github.com/spf13/cobra"
+
+	"github.com/go-kratos/kratos/cmd/kratos/v2/internal/base"
 )
 
 // CmdNew represents the new command.

cmd/kratos/internal/proto/add/add.go

@@ -15,7 +15,7 @@ import (
 var CmdAdd = &cobra.Command{
 	Use:   "add",
 	Short: "Add a proto API template",
-	Long:  "Add a proto API template. Example: kratos add helloworld/v1/hello.proto",
+	Long:  "Add a proto API template. Example: kratos proto add helloworld/v1/hello.proto",
 	Run:   run,
 }
 

cmd/kratos/version.go

@@ -1,4 +1,4 @@
 package main
 
 // release is the current kratos tool version.
-const release = "v2.4.1"
+const release = "v2.5.1"

cmd/protoc-gen-go-errors/errors.go

@@ -8,9 +8,10 @@ import (
 	"golang.org/x/text/cases"
 	"golang.org/x/text/language"
 
-	"github.com/go-kratos/kratos/cmd/protoc-gen-go-errors/v2/errors"
 	"google.golang.org/protobuf/compiler/protogen"
 	"google.golang.org/protobuf/proto"
+
+	"github.com/go-kratos/kratos/cmd/protoc-gen-go-errors/v2/errors"
 )
 
 const (

cmd/protoc-gen-go-errors/version.go

@@ -1,4 +1,4 @@
 package main
 
 // release is the current protoc-gen-go-errors version.
-const release = "v2.4.1"
+const release = "v2.5.1"

cmd/protoc-gen-go-http/http.go

@@ -213,9 +213,9 @@ func buildPathVars(path string) (res map[string]*string) {
 	if strings.HasSuffix(path, "/") {
 		fmt.Fprintf(os.Stderr, "\u001B[31mWARN\u001B[m: Path %s should not end with \"/\" \n", path)
 	}
-	res = make(map[string]*string)
 	pattern := regexp.MustCompile(`(?i){([a-z\.0-9_\s]*)=?([^{}]*)}`)
 	matches := pattern.FindAllStringSubmatch(path, -1)
+	res = make(map[string]*string, len(matches))
 	for _, m := range matches {
 		name := strings.TrimSpace(m[1])
 		if len(name) > 1 && len(m[2]) > 0 {
@@ -255,8 +255,8 @@ func camelCaseVars(s string) string {
 // drop the underscore and convert the letter to upper case.
 // There is a remote possibility of this rewrite causing a name collision,
 // but it's so remote we're prepared to pretend it's nonexistent - since the
-// C++ generator lowercases names, it's extremely unlikely to have two fields
-// with different capitalizations.
+// C++ generator lowercase names, it's extremely unlikely to have two fields
+// with different capitalization.
 // In short, _my_field_name_2 becomes XMyFieldName_2.
 func camelCase(s string) string {
 	if s == "" {

cmd/protoc-gen-go-http/version.go

@@ -1,4 +1,4 @@
 package main
 
 // release is the current protoc-gen-go-http version.
-const release = "v2.4.1"
+const release = "v2.5.1"

config/env/env.go

@@ -8,11 +8,11 @@ import (
 )
 
 type env struct {
-	prefixs []string
+	prefixes []string
 }
 
-func NewSource(prefixs ...string) config.Source {
-	return &env{prefixs: prefixs}
+func NewSource(prefixes ...string) config.Source {
+	return &env{prefixes: prefixes}
 }
 
 func (e *env) Load() (kv []*config.KeyValue, err error) {
@@ -29,8 +29,8 @@ func (e *env) load(envStrings []string) []*config.KeyValue {
 			v = subs[1]
 		}
 
-		if len(e.prefixs) > 0 {
-			p, ok := matchPrefix(e.prefixs, k)
+		if len(e.prefixes) > 0 {
+			p, ok := matchPrefix(e.prefixes, k)
 			if !ok || len(p) == len(k) {
 				continue
 			}

config/env/env_test.go

@@ -261,7 +261,7 @@ func TestEnvWithoutPrefix(t *testing.T) {
 
 func Test_env_load(t *testing.T) {
 	type fields struct {
-		prefixs []string
+		prefixes []string
 	}
 	type args struct {
 		envStrings []string
@@ -275,7 +275,7 @@ func Test_env_load(t *testing.T) {
 		{
 			name: "without prefixes",
 			fields: fields{
-				prefixs: nil,
+				prefixes: nil,
 			},
 			args: args{
 				envStrings: []string{
@@ -294,7 +294,7 @@ func Test_env_load(t *testing.T) {
 		{
 			name: "empty prefix",
 			fields: fields{
-				prefixs: []string{""},
+				prefixes: []string{""},
 			},
 			args: args{
 				envStrings: []string{
@@ -313,7 +313,7 @@ func Test_env_load(t *testing.T) {
 		{
 			name: "underscore prefix",
 			fields: fields{
-				prefixs: []string{"_"},
+				prefixes: []string{"_"},
 			},
 			args: args{
 				envStrings: []string{
@@ -332,7 +332,7 @@ func Test_env_load(t *testing.T) {
 		{
 			name: "with prefixes",
 			fields: fields{
-				prefixs: []string{"KRATOS_", "FOO"},
+				prefixes: []string{"KRATOS_", "FOO"},
 			},
 			args: args{
 				envStrings: []string{
@@ -351,7 +351,7 @@ func Test_env_load(t *testing.T) {
 		{
 			name: "should not panic #1",
 			fields: fields{
-				prefixs: []string{"FOO"},
+				prefixes: []string{"FOO"},
 			},
 			args: args{
 				envStrings: []string{
@@ -364,7 +364,7 @@ func Test_env_load(t *testing.T) {
 		{
 			name: "should not panic #2",
 			fields: fields{
-				prefixs: []string{"FOO=1"},
+				prefixes: []string{"FOO=1"},
 			},
 			args: args{
 				envStrings: []string{
@@ -377,7 +377,7 @@ func Test_env_load(t *testing.T) {
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
 			e := &env{
-				prefixs: tt.fields.prefixs,
+				prefixes: tt.fields.prefixes,
 			}
 			got := e.load(tt.args.envStrings)
 			if !reflect.DeepEqual(tt.want, got) {
@@ -419,8 +419,8 @@ func Test_matchPrefix(t *testing.T) {
 }
 
 func Test_env_watch(t *testing.T) {
-	prefixs := []string{"BAR", "FOO"}
-	source := NewSource(prefixs...)
+	prefixes := []string{"BAR", "FOO"}
+	source := NewSource(prefixes...)
 	w, err := source.Watch()
 	if err != nil {
 		t.Errorf("expect no err, got %v", err)

config/file/file_test.go

@@ -208,7 +208,7 @@ func TestConfig(t *testing.T) {
 func testConfig(t *testing.T, c config.Config) {
 	expected := map[string]interface{}{
 		"test.settings.int_key":      int64(1000),
-		"test.settings.float_key":    float64(1000.1),
+		"test.settings.float_key":    1000.1,
 		"test.settings.string_key":   "string_value",
 		"test.settings.duration_key": time.Duration(10000),
 		"test.server.addr":           "127.0.0.1",

config/file/watcher.go

@@ -6,6 +6,7 @@ import (
 	"path/filepath"
 
 	"github.com/fsnotify/fsnotify"
+
 	"github.com/go-kratos/kratos/v2/config"
 )
 

config/reader_test.go

@@ -132,9 +132,6 @@ a:
 				t.Fatal(`vvv is not equal to 1`)
 			}
 
-			if err != nil {
-				t.Fatal(`err is not nil`)
-			}
 			vv, ok = r.Value("a.b.Y")
 			if !ok {
 				t.Fatal(`ok is false`)
@@ -147,9 +144,6 @@ a:
 				t.Fatal(`vvy is not equal to "lol"`)
 			}
 
-			if err != nil {
-				t.Fatal(`err is not nil`)
-			}
 			vv, ok = r.Value("a.b.z")
 			if !ok {
 				t.Fatal(`ok is false`)

config/value.go

@@ -93,9 +93,9 @@ func (v *atomicValue) Slice() ([]Value, error) {
 
 func (v *atomicValue) Map() (map[string]Value, error) {
 	if vals, ok := v.Load().(map[string]interface{}); ok {
-		m := make(map[string]Value)
+		m := make(map[string]Value, len(vals))
 		for key, val := range vals {
-			a := &atomicValue{}
+			a := new(atomicValue)
 			a.Store(val)
 			m[key] = a
 		}
@@ -144,10 +144,8 @@ func (v *atomicValue) String() (string, error) {
 		return fmt.Sprint(val), nil
 	case []byte:
 		return string(val), nil
-	default:
-		if s, ok := val.(fmt.Stringer); ok {
-			return s.String(), nil
-		}
+	case fmt.Stringer:
+		return val.String(), nil
 	}
 	return "", fmt.Errorf("type assert to %v failed", reflect.TypeOf(v.Load()))
 }

config/value_test.go

@@ -70,7 +70,7 @@ func Test_atomicValue_Int(t *testing.T) {
 }
 
 func Test_atomicValue_Float(t *testing.T) {
-	vlist := []interface{}{"123123.1", float64(123123.1)}
+	vlist := []interface{}{"123123.1", 123123.1}
 	for _, x := range vlist {
 		v := atomicValue{}
 		v.Store(x)
@@ -78,7 +78,7 @@ func Test_atomicValue_Float(t *testing.T) {
 		if err != nil {
 			t.Fatal(`err is not nil`)
 		}
-		if b != float64(123123.1) {
+		if b != 123123.1 {
 			t.Fatal(`b is not equal to 123123.1`)
 		}
 	}

contrib/config/apollo/apollo.go

@@ -7,7 +7,11 @@ import (
 	"github.com/go-kratos/kratos/v2/log"
 
 	"github.com/apolloconfig/agollo/v4"
+	"github.com/apolloconfig/agollo/v4/constant"
 	apolloConfig "github.com/apolloconfig/agollo/v4/env/config"
+	"github.com/apolloconfig/agollo/v4/extension"
+
+	"github.com/go-kratos/kratos/v2/encoding"
 )
 
 type apollo struct {
@@ -15,6 +19,13 @@ type apollo struct {
 	opt    *options
 }
 
+const (
+	yaml       = "yaml"
+	yml        = "yml"
+	json       = "json"
+	properties = "properties"
+)
+
 // Option is apollo option
 type Option func(*options)
 
@@ -26,6 +37,7 @@ type options struct {
 	namespace      string
 	isBackupConfig bool
 	backupPath     string
+	originConfig   bool
 }
 
 // WithAppID with apollo config app id
@@ -84,6 +96,16 @@ func WithBackupPath(backupPath string) Option {
 	}
 }
 
+// WithOriginalConfig use the original configuration file without parse processing
+func WithOriginalConfig() Option {
+	return func(o *options) {
+		extension.AddFormatParser(constant.JSON, &jsonExtParser{})
+		extension.AddFormatParser(constant.YAML, &yamlExtParser{})
+		extension.AddFormatParser(constant.YML, &yamlExtParser{})
+		o.originConfig = true
+	}
+}
+
 func NewSource(opts ...Option) config.Source {
 	op := options{}
 	for _, o := range opts {
@@ -108,31 +130,78 @@ func NewSource(opts ...Option) config.Source {
 
 func format(ns string) string {
 	arr := strings.Split(ns, ".")
-	if len(arr) <= 1 {
-		return "json"
+	if len(arr) <= 1 || arr[len(arr)-1] == properties {
+		return json
 	}
-
 	return arr[len(arr)-1]
 }
 
 func (e *apollo) load() []*config.KeyValue {
-	kv := make([]*config.KeyValue, 0)
+	kvs := make([]*config.KeyValue, 0)
 	namespaces := strings.Split(e.opt.namespace, ",")
 
 	for _, ns := range namespaces {
-		value, err := e.client.GetConfigCache(ns).Get("content")
-		if err != nil {
-			log.Warnw("apollo get config failed", "err", err)
+		if !e.opt.originConfig {
+			kv, err := e.getConfig(ns)
+			if err != nil {
+				log.Errorf("apollo get config failed，err:%v", err)
+				continue
+			}
+			kvs = append(kvs, kv)
+			continue
+		}
+		if strings.Contains(ns, ".") && !strings.Contains(ns, properties) &&
+			(format(ns) == yaml || format(ns) == yml || format(ns) == json) {
+			kv, err := e.getOriginConfig(ns)
+			if err != nil {
+				log.Errorf("apollo get config failed，err:%v", err)
+				continue
+			}
+			kvs = append(kvs, kv)
+			continue
+		} else {
+			kv, err := e.getConfig(ns)
+			if err != nil {
+				log.Errorf("apollo get config failed，err:%v", err)
+				continue
+			}
+			kvs = append(kvs, kv)
 		}
-		// serialize the namespace content KeyValue into bytes.
-		kv = append(kv, &config.KeyValue{
-			Key:    ns,
-			Value:  []byte(value.(string)),
-			Format: format(ns),
-		})
 	}
+	return kvs
+}
 
-	return kv
+func (e *apollo) getConfig(ns string) (*config.KeyValue, error) {
+	next := map[string]interface{}{}
+	e.client.GetConfigCache(ns).Range(func(key, value interface{}) bool {
+		// all values are out properties format
+		resolve(genKey(ns, key.(string)), value, next)
+		return true
+	})
+	f := format(ns)
+	codec := encoding.GetCodec(f)
+	val, err := codec.Marshal(next)
+	if err != nil {
+		return nil, err
+	}
+	return &config.KeyValue{
+		Key:    ns,
+		Value:  val,
+		Format: f,
+	}, nil
+}
+
+func (e apollo) getOriginConfig(ns string) (*config.KeyValue, error) {
+	value, err := e.client.GetConfigCache(ns).Get("content")
+	if err != nil {
+		return nil, err
+	}
+	// serialize the namespace content KeyValue into bytes.
+	return &config.KeyValue{
+		Key:    ns,
+		Value:  []byte(value.(string)),
+		Format: format(ns),
+	}, nil
 }
 
 func (e *apollo) Load() (kv []*config.KeyValue, err error) {
@@ -146,3 +215,54 @@ func (e *apollo) Watch() (config.Watcher, error) {
 	}
 	return w, nil
 }
+
+// resolve convert kv pair into one map[string]interface{} by split key into different
+// map level. such as: app.name = "application" => map[app][name] = "application"
+func resolve(key string, value interface{}, target map[string]interface{}) {
+	// expand key "aaa.bbb" into map[aaa]map[bbb]interface{}
+	keys := strings.Split(key, ".")
+	last := len(keys) - 1
+	cursor := target
+
+	for i, k := range keys {
+		if i == last {
+			cursor[k] = value
+			break
+		}
+
+		// not the last key, be deeper
+		v, ok := cursor[k]
+		if !ok {
+			// create a new map
+			deeper := make(map[string]interface{})
+			cursor[k] = deeper
+			cursor = deeper
+			continue
+		}
+
+		// current exists, then check existing value type, if it's not map
+		// that means duplicate keys, and at least one is not map instance.
+		if cursor, ok = v.(map[string]interface{}); !ok {
+			log.Warnf("duplicate key: %v\n", strings.Join(keys[:i+1], "."))
+			break
+		}
+	}
+}
+
+// genKey got the key of config.KeyValue pair.
+// eg: namespace.ext with subKey got namespace.subKey
+func genKey(ns, sub string) string {
+	arr := strings.Split(ns, ".")
+	if len(arr) < 1 {
+		return sub
+	}
+
+	if len(arr) == 1 {
+		if ns == "" {
+			return sub
+		}
+		return ns + "." + sub
+	}
+
+	return strings.Join(arr[:len(arr)-1], ".") + "." + sub
+}

contrib/config/apollo/parser.go

@@ -1,10 +1,5 @@
 package apollo
 
-import (
-	"github.com/apolloconfig/agollo/v4/constant"
-	"github.com/apolloconfig/agollo/v4/extension"
-)
-
 type jsonExtParser struct{}
 
 func (parser jsonExtParser) Parse(configContent interface{}) (map[string]interface{}, error) {
@@ -13,13 +8,6 @@ func (parser jsonExtParser) Parse(configContent interface{}) (map[string]interfa
 
 type yamlExtParser struct{}
 
-func (parser yamlExtParser) Parse(configContent interface{}) (out map[string]interface{}, err error) {
+func (parser yamlExtParser) Parse(configContent interface{}) (map[string]interface{}, error) {
 	return map[string]interface{}{"content": configContent}, nil
 }
-
-func init() {
-	// add json/yaml/yml format
-	extension.AddFormatParser(constant.JSON, &jsonExtParser{})
-	extension.AddFormatParser(constant.YAML, &yamlExtParser{})
-	extension.AddFormatParser(constant.YML, &yamlExtParser{})
-}

contrib/config/apollo/watcher.go

@@ -2,6 +2,9 @@ package apollo
 
 import (
 	"context"
+	"strings"
+
+	"github.com/go-kratos/kratos/v2/encoding"
 
 	"github.com/go-kratos/kratos/v2/config"
 	"github.com/go-kratos/kratos/v2/log"
@@ -23,14 +26,39 @@ type customChangeListener struct {
 
 func (c *customChangeListener) onChange(namespace string, changes map[string]*storage.ConfigChange) []*config.KeyValue {
 	kv := make([]*config.KeyValue, 0, 2)
-	value, err := c.apollo.client.GetConfigCache(namespace).Get("content")
+	if strings.Contains(namespace, ".") && !strings.Contains(namespace, properties) &&
+		(format(namespace) == yaml || format(namespace) == yml || format(namespace) == json) {
+		value, err := c.apollo.client.GetConfigCache(namespace).Get("content")
+		if err != nil {
+			log.Warnw("apollo get config failed", "err", err)
+			return nil
+		}
+		kv = append(kv, &config.KeyValue{
+			Key:    namespace,
+			Value:  []byte(value.(string)),
+			Format: format(namespace),
+		})
+
+		return kv
+	}
+
+	next := make(map[string]interface{})
+
+	for key, change := range changes {
+		resolve(genKey(namespace, key), change.NewValue, next)
+	}
+
+	f := format(namespace)
+	codec := encoding.GetCodec(f)
+	val, err := codec.Marshal(next)
 	if err != nil {
-		log.Warnw("apollo get config failed", "err", err)
+		log.Warnf("apollo could not handle namespace %s: %v", namespace, err)
+		return nil
 	}
 	kv = append(kv, &config.KeyValue{
 		Key:    namespace,
-		Value:  []byte(value.(string)),
-		Format: format(namespace),
+		Value:  val,
+		Format: f,
 	})
 
 	return kv

contrib/config/consul/config.go

@@ -6,8 +6,9 @@ import (
 	"path/filepath"
 	"strings"
 
-	"github.com/go-kratos/kratos/v2/config"
 	"github.com/hashicorp/consul/api"
+
+	"github.com/go-kratos/kratos/v2/config"
 )
 
 // Option is etcd config option.
@@ -27,9 +28,9 @@ func WithContext(ctx context.Context) Option {
 
 // WithPath is config path
 func WithPath(p string) Option {
-	return Option(func(o *options) {
+	return func(o *options) {
 		o.path = p
-	})
+	}
 }
 
 type source struct {

contrib/config/consul/config_test.go

@@ -5,8 +5,9 @@ import (
 	"testing"
 	"time"
 
-	"github.com/go-kratos/kratos/v2/config"
 	"github.com/hashicorp/consul/api"
+
+	"github.com/go-kratos/kratos/v2/config"
 )
 
 const testPath = "kratos/test/config"

contrib/config/consul/go.mod

@@ -4,7 +4,7 @@ go 1.15
 
 require (
 	github.com/go-kratos/kratos/v2 v2.4.0
-	github.com/hashicorp/consul/api v1.13.1
+	github.com/hashicorp/consul/api v1.14.0
 )
 
 replace github.com/go-kratos/kratos/v2 => ../../../

contrib/config/consul/go.sum

@@ -1,16 +1,27 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/DataDog/datadog-go v3.2.0+incompatible/go.mod h1:LButxg5PwREeZtORoXG3tL4fMGNddJ+vMq1mwgfaqoQ=
 github.com/StackExchange/wmi v1.2.1/go.mod h1:rcmrprowKIVzvc+NUiLncP2uuArMWLCbu9SBzvHz7e8=
+github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
+github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
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@@ -18,6 +29,7 @@ github.com/cncf/udpa/go v0.0.0-20210930031921-04548b0d99d4/go.mod h1:6pvJx4me5XP
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@@ -153,10 +219,12 @@ github.com/stretchr/testify v1.7.1 h1:5TQK59W5E3v0r2duFAb7P95B6hEeOyEnHRa8MjYSMT
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@@ -166,38 +234,46 @@ golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvx
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 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190922100055-0a153f010e69/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190924154521-2837fb4f24fe/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191008105621-543471e840be/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200122134326-e047566fdf82/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -205,6 +281,7 @@ golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210303074136-134d130e1a04/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423185535-09eb48e85fd7/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210816074244-15123e1e1f71/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
@@ -255,11 +332,15 @@ google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQ
 google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.28.0 h1:w43yiav+6bVFTBQFZX0r7ipe9JQ1QsbMgHwbBziscLw=
 google.golang.org/protobuf v1.28.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
+gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

contrib/config/consul/watcher.go

@@ -3,9 +3,10 @@ package consul
 import (
 	"context"
 
-	"github.com/go-kratos/kratos/v2/config"
 	"github.com/hashicorp/consul/api"
 	"github.com/hashicorp/consul/api/watch"
+
+	"github.com/go-kratos/kratos/v2/config"
 )
 
 type watcher struct {

contrib/config/etcd/README.md

@@ -10,7 +10,7 @@ import (
 	"google.golang.org/grpc"
 )
 
-// create a etcd client
+// create an etcd client
 client, err := clientv3.New(clientv3.Config{
     Endpoints:   []string{"127.0.0.1:2379"},
     DialTimeout: time.Second,

contrib/config/etcd/config.go

@@ -6,8 +6,9 @@ import (
 	"path/filepath"
 	"strings"
 
-	"github.com/go-kratos/kratos/v2/config"
 	clientv3 "go.etcd.io/etcd/client/v3"
+
+	"github.com/go-kratos/kratos/v2/config"
 )
 
 // Option is etcd config option.

contrib/config/etcd/config_test.go

@@ -15,7 +15,8 @@ const testKey = "/kratos/test/config"
 func TestConfig(t *testing.T) {
 	client, err := clientv3.New(clientv3.Config{
 		Endpoints:   []string{"127.0.0.1:2379"},
-		DialTimeout: time.Second, DialOptions: []grpc.DialOption{grpc.WithBlock()},
+		DialTimeout: time.Second,
+		DialOptions: []grpc.DialOption{grpc.WithBlock()},
 	})
 	if err != nil {
 		t.Fatal(err)
@@ -108,3 +109,61 @@ func TestExtToFormat(t *testing.T) {
 		t.Errorf("kvs[0].Format is %s", kvs[0].Format)
 	}
 }
+
+func TestEtcdWithPath(t *testing.T) {
+	tests := []struct {
+		name   string
+		fields string
+		want   string
+	}{
+		{
+			name:   "default",
+			fields: testKey,
+			want:   testKey,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			options := &options{
+				ctx: context.Background(),
+			}
+
+			got := WithPath(tt.fields)
+			got(options)
+
+			if options.path != tt.want {
+				t.Errorf("WithPath(tt.fields) = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func TestEtcdWithPrefix(t *testing.T) {
+	tests := []struct {
+		name   string
+		fields bool
+		want   bool
+	}{
+		{
+			name:   "default",
+			fields: false,
+			want:   false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			options := &options{
+				ctx: context.Background(),
+			}
+
+			got := WithPrefix(tt.fields)
+			got(options)
+
+			if options.prefix != tt.want {
+				t.Errorf("WithPrefix(tt.fields) = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}

contrib/config/etcd/watcher.go

@@ -3,8 +3,9 @@ package etcd
 import (
 	"context"
 
-	"github.com/go-kratos/kratos/v2/config"
 	clientv3 "go.etcd.io/etcd/client/v3"
+
+	"github.com/go-kratos/kratos/v2/config"
 )
 
 type watcher struct {

contrib/config/kubernetes/config.go

@@ -7,12 +7,13 @@ import (
 	"path/filepath"
 	"strings"
 
-	"github.com/go-kratos/kratos/v2/config"
 	v1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/client-go/kubernetes"
 	"k8s.io/client-go/rest"
 	"k8s.io/client-go/tools/clientcmd"
+
+	"github.com/go-kratos/kratos/v2/config"
 )
 
 // Option is kubernetes option.

contrib/config/kubernetes/watcher.go

@@ -4,10 +4,11 @@ import (
 	"context"
 	"fmt"
 
-	"github.com/go-kratos/kratos/v2/config"
 	v1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/watch"
+
+	"github.com/go-kratos/kratos/v2/config"
 )
 
 type watcher struct {

contrib/config/nacos/watcher.go

@@ -5,8 +5,9 @@ import (
 	"path/filepath"
 	"strings"
 
-	"github.com/go-kratos/kratos/v2/config"
 	"github.com/nacos-group/nacos-sdk-go/vo"
+
+	"github.com/go-kratos/kratos/v2/config"
 )
 
 type Watcher struct {

contrib/config/polaris/config_test.go

@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"reflect"
 	"strings"
@@ -26,19 +26,19 @@ var (
 func makeJSONRequest(uri string, data string, method string, headers map[string]string) ([]byte, error) {
 	client := http.Client{}
 	req, err := http.NewRequest(method, uri, strings.NewReader(data))
+	if err != nil {
+		return nil, err
+	}
 	req.Header.Add("Content-Type", "application/json")
 	for k, v := range headers {
 		req.Header.Add(k, v)
 	}
-	if err != nil {
-		return nil, err
-	}
 	res, err := client.Do(req)
 	if err != nil {
 		return nil, err
 	}
 	defer res.Body.Close()
-	return ioutil.ReadAll(res.Body)
+	return io.ReadAll(res.Body)
 }
 
 type commonRes struct {

contrib/encoding/msgpack/go.mod

@@ -3,7 +3,7 @@ module github.com/go-kratos/kratos/contrib/encoding/msgpack/v2
 go 1.16
 
 require (
-	github.com/go-kratos/kratos/v2 v2.4.1
+	github.com/go-kratos/kratos/v2 v2.5.1
 	github.com/vmihailenco/msgpack/v5 v5.3.5
 )
 

contrib/log/aliyun/aliyun.go

@@ -2,18 +2,20 @@ package aliyun
 
 import (
 	"encoding/json"
+	"fmt"
 	"strconv"
 	"time"
 
 	sls "github.com/aliyun/aliyun-log-go-sdk"
 	"github.com/aliyun/aliyun-log-go-sdk/producer"
-	klog "github.com/go-kratos/kratos/v2/log"
 	"google.golang.org/protobuf/proto"
+
+	"github.com/go-kratos/kratos/v2/log"
 )
 
-// Log see more detail https://github.com/aliyun/aliyun-log-go-sdk
-type Log interface {
-	klog.Logger
+// Logger see more detail https://github.com/aliyun/aliyun-log-go-sdk
+type Logger interface {
+	log.Logger
 	GetProducer() *producer.Producer
 	Close() error
 }
@@ -78,7 +80,7 @@ func (a *aliyunLog) Close() error {
 	return a.producer.Close(5000)
 }
 
-func (a *aliyunLog) Log(level klog.Level, keyvals ...interface{}) error {
+func (a *aliyunLog) Log(level log.Level, keyvals ...interface{}) error {
 	buf := level.String()
 	levelTitle := "level"
 
@@ -108,7 +110,7 @@ func (a *aliyunLog) Log(level klog.Level, keyvals ...interface{}) error {
 }
 
 // NewAliyunLog new a aliyun logger with options.
-func NewAliyunLog(options ...Option) Log {
+func NewAliyunLog(options ...Option) Logger {
 	opts := defaultOptions()
 	for _, o := range options {
 		o(opts)
@@ -126,7 +128,7 @@ func NewAliyunLog(options ...Option) Log {
 	}
 }
 
-// toString 任意类型转string
+// toString convert any type to string
 func toString(v interface{}) string {
 	var key string
 	if v == nil {
@@ -159,8 +161,12 @@ func toString(v interface{}) string {
 		key = strconv.FormatUint(v, 10)
 	case string:
 		key = v
+	case bool:
+		key = strconv.FormatBool(v)
 	case []byte:
 		key = string(v)
+	case fmt.Stringer:
+		key = v.String()
 	default:
 		newValue, _ := json.Marshal(v)
 		key = string(newValue)

contrib/log/aliyun/aliyun_test.go

@@ -1,6 +1,7 @@
 package aliyun
 
 import (
+	"math"
 	"testing"
 
 	"github.com/go-kratos/kratos/v2/log"
@@ -92,4 +93,40 @@ func TestLog(t *testing.T) {
 	if err != nil {
 		t.Errorf("Log() returns error:%v", err)
 	}
+	err = logger.Log(log.LevelDebug, true, 0)
+	if err != nil {
+		t.Errorf("Log() returns error:%v", err)
+	}
+}
+
+func TestToString(t *testing.T) {
+	tests := []struct {
+		in  interface{}
+		out string
+	}{
+		{math.MaxFloat64, "17976931348623157000000000000000000000000000000000000" +
+			"000000000000000000000000000000000000000000000000000000000000000000000000000" +
+			"000000000000000000000000000000000000000000000000000000000000000000000000000" +
+			"000000000000000000000000000000000000000000000000000000000000000000000000000" +
+			"0000000000000000000000000000000"},
+		{math.MaxFloat32, "340282346638528860000000000000000000000"},
+		{1<<((32<<(^uint(0)>>63))-1) - 1, "9223372036854775807"},
+		{uint(1<<(32<<(^uint(0)>>63)) - 1), "-1"},
+		{math.MaxInt8, "127"},
+		{math.MaxUint8, "255"},
+		{math.MaxInt16, "32767"},
+		{math.MaxUint16, "65535"},
+		{math.MaxInt32, "2147483647"},
+		{math.MaxUint32, "4294967295"},
+		{math.MaxInt64, "9223372036854775807"},
+		{uint64(math.MaxUint64), "18446744073709551615"},
+		{"abc", "abc"},
+		{false, "false"},
+		{[]byte("abc"), "abc"},
+	}
+	for _, test := range tests {
+		if toString(test.in) != test.out {
+			t.Fatalf("want: %s, got: %s", test.out, toString(test.in))
+		}
+	}
 }

contrib/log/aliyun/go.mod

@@ -4,8 +4,8 @@ go 1.16
 
 require (
 	github.com/aliyun/aliyun-log-go-sdk v0.1.37
-	github.com/go-kratos/kratos/v2 v2.4.1
-	google.golang.org/protobuf v1.28.0
+	github.com/go-kratos/kratos/v2 v2.5.1
+	google.golang.org/protobuf v1.28.1
 )
 
 replace (

contrib/log/aliyun/go.sum

@@ -462,8 +462,9 @@ google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlba
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
-google.golang.org/protobuf v1.28.0 h1:w43yiav+6bVFTBQFZX0r7ipe9JQ1QsbMgHwbBziscLw=
 google.golang.org/protobuf v1.28.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
+google.golang.org/protobuf v1.28.1 h1:d0NfwRgPtno5B1Wa6L2DAG+KivqkdutMf1UhdNx175w=
+google.golang.org/protobuf v1.28.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=

contrib/log/fluent/fluent.go

@@ -8,6 +8,7 @@ import (
 	"time"
 
 	"github.com/fluent/fluent-logger-golang/fluent"
+
 	"github.com/go-kratos/kratos/v2/log"
 )
 
@@ -99,8 +100,9 @@ type Logger struct {
 
 // NewLogger new a std logger with options.
 // target:
-//   tcp://127.0.0.1:24224
-//   unix://var/run/fluent/fluent.sock
+//
+//	tcp://127.0.0.1:24224
+//	unix://var/run/fluent/fluent.sock
 func NewLogger(addr string, opts ...Option) (*Logger, error) {
 	option := options{}
 	for _, o := range opts {

contrib/log/fluent/go.mod

@@ -5,7 +5,7 @@ go 1.16
 require (
 	github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869 // indirect
 	github.com/fluent/fluent-logger-golang v1.9.0
-	github.com/go-kratos/kratos/v2 v2.4.1
+	github.com/go-kratos/kratos/v2 v2.5.1
 	github.com/kr/pretty v0.3.0 // indirect
 	github.com/tinylib/msgp v1.1.6 // indirect
 )

contrib/log/logrus/go.mod

@@ -3,9 +3,8 @@ module github.com/go-kratos/kratos/contrib/log/logrus/v2
 go 1.16
 
 require (
-	github.com/go-kratos/kratos/v2 v2.4.1
+	github.com/go-kratos/kratos/v2 v2.5.1
 	github.com/sirupsen/logrus v1.8.1
-	github.com/stretchr/testify v1.7.1
 )
 
 replace github.com/go-kratos/kratos/v2 => ../../../

contrib/log/logrus/go.sum

@@ -154,7 +154,6 @@ google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp0
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.28.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

contrib/log/logrus/logrus.go

@@ -1,8 +1,9 @@
 package logrus
 
 import (
-	"github.com/go-kratos/kratos/v2/log"
 	"github.com/sirupsen/logrus"
+
+	"github.com/go-kratos/kratos/v2/log"
 )
 
 var _ log.Logger = (*Logger)(nil)

contrib/log/logrus/logrus_test.go

@@ -5,9 +5,9 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/go-kratos/kratos/v2/log"
 	"github.com/sirupsen/logrus"
-	"github.com/stretchr/testify/assert"
+
+	"github.com/go-kratos/kratos/v2/log"
 )
 
 func TestLoggerLog(t *testing.T) {
@@ -58,7 +58,9 @@ func TestLoggerLog(t *testing.T) {
 			wrapped := NewLogger(logger)
 			_ = wrapped.Log(test.logLevel, test.kvs...)
 
-			assert.True(t, strings.HasPrefix(output.String(), test.want))
+			if !strings.HasPrefix(output.String(), test.want) {
+				t.Errorf("TestName(%s): %s has not prefix %s", name, output.String(), test.want)
+			}
 		})
 	}
 }

contrib/log/tencent/go.mod

@@ -3,7 +3,9 @@ module github.com/go-kratos/kratos/contrib/log/tencent/v2
 go 1.16
 
 require (
-	github.com/go-kratos/kratos/v2 v2.4.1
+	github.com/go-kratos/kratos/v2 v2.5.1
 	github.com/tencentcloud/tencentcloud-cls-sdk-go v1.0.2
 	google.golang.org/protobuf v1.28.0
 )
+
+replace github.com/go-kratos/kratos/v2 => ../../../

contrib/log/tencent/go.sum

@@ -27,8 +27,6 @@ github.com/frankban/quicktest v1.14.0/go.mod h1:NeW+ay9A/U67EYXNFA1nPE8e/tnQv/09
 github.com/fsnotify/fsnotify v1.5.4/go.mod h1:OVB6XrOHzAwXMpEM7uPOzcehqUV2UqJxmVXmkdnm1bU=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/go-kratos/aegis v0.1.2/go.mod h1:jYeSQ3Gesba478zEnujOiG5QdsyF3Xk/8owFUeKcHxw=
-github.com/go-kratos/kratos/v2 v2.4.1 h1:NFQy8Ha4Xu6T3Q40JlKzspvlMa5IGvIHhJw5+sqyV4c=
-github.com/go-kratos/kratos/v2 v2.4.1/go.mod h1:5acyLj4EgY428AJnZl2EwCrMV1OVlttQFBum+SghMiA=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/logr v1.2.3/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=

contrib/log/tencent/tencent.go

@@ -6,9 +6,10 @@ import (
 	"strconv"
 	"time"
 
-	log "github.com/go-kratos/kratos/v2/log"
 	cls "github.com/tencentcloud/tencentcloud-cls-sdk-go"
 	"google.golang.org/protobuf/proto"
+
+	"github.com/go-kratos/kratos/v2/log"
 )
 
 type Logger interface {
@@ -114,7 +115,7 @@ func NewLogger(options ...Option) (Logger, error) {
 	}, nil
 }
 
-// toString any type to string
+// toString convert any type to string
 func toString(v interface{}) string {
 	var key string
 	if v == nil {
@@ -145,6 +146,12 @@ func toString(v interface{}) string {
 		key = strconv.FormatInt(v, 10)
 	case uint64:
 		key = strconv.FormatUint(v, 10)
+	case string:
+		key = v
+	case bool:
+		key = strconv.FormatBool(v)
+	case []byte:
+		key = string(v)
 	case fmt.Stringer:
 		key = v.String()
 	default:

contrib/log/zap/go.mod

@@ -3,8 +3,8 @@ module github.com/go-kratos/kratos/contrib/log/zap/v2
 go 1.16
 
 require (
-	github.com/go-kratos/kratos/v2 v2.4.1
-	go.uber.org/zap v1.21.0
+	github.com/go-kratos/kratos/v2 v2.5.1
+	go.uber.org/zap v1.23.0
 )
 
 replace github.com/go-kratos/kratos/v2 => ../../../

contrib/log/zap/go.sum

@@ -72,11 +72,13 @@ github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:
 github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
 github.com/shirou/gopsutil/v3 v3.21.8/go.mod h1:YWp/H8Qs5fVmf17v7JNZzA0mPJ+mS2e9JdiUF9LlKzQ=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/stretchr/testify v1.7.1 h1:5TQK59W5E3v0r2duFAb7P95B6hEeOyEnHRa8MjYSMTY=
 github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.8.0 h1:pSgiaMZlXftHpm5L7V1+rVB+AZJydKsMxsQBIJw4PKk=
+github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
 github.com/tklauser/go-sysconf v0.3.9/go.mod h1:11DU/5sG7UexIrp/O6g35hrWzu0JxlwQ3LSFUzyeuhs=
 github.com/tklauser/numcpus v0.3.0/go.mod h1:yFGUr7TUHQRAhyqBcEg0Ge34zDBAsIvJJcyE6boqnA8=
 github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
@@ -90,8 +92,8 @@ go.uber.org/goleak v1.1.11 h1:wy28qYRKZgnJTxGxvye5/wgWr1EKjmUDGYox5mGlRlI=
 go.uber.org/goleak v1.1.11/go.mod h1:cwTWslyiVhfpKIDGSZEM2HlOvcqm+tG4zioyIeLoqMQ=
 go.uber.org/multierr v1.6.0 h1:y6IPFStTAIT5Ytl7/XYmHvzXQ7S3g/IeZW9hyZ5thw4=
 go.uber.org/multierr v1.6.0/go.mod h1:cdWPpRnG4AhwMwsgIHip0KRBQjJy5kYEpYjJxpXp9iU=
-go.uber.org/zap v1.21.0 h1:WefMeulhovoZ2sYXz7st6K0sLj7bBhpiFaud4r4zST8=
-go.uber.org/zap v1.21.0/go.mod h1:wjWOCqI0f2ZZrJF/UufIOkiC8ii6tm1iqIsLo76RfJw=
+go.uber.org/zap v1.23.0 h1:OjGQ5KQDEUawVHxNwQgPpiypGHOxo2mNZsOqTak4fFY=
+go.uber.org/zap v1.23.0/go.mod h1:D+nX8jyLsMHMYrln8A0rJjFt/T/9/bGgIhAqxv5URuY=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
@@ -179,12 +181,10 @@ gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gopkg.in/yaml.v3 v3.0.0 h1:hjy8E9ON/egN1tAYqKb61G10WtihqetD4sz2H+8nIeA=
 gopkg.in/yaml.v3 v3.0.0/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

contrib/log/zap/zap.go

@@ -3,8 +3,9 @@ package zap
 import (
 	"fmt"
 
-	"github.com/go-kratos/kratos/v2/log"
 	"go.uber.org/zap"
+
+	"github.com/go-kratos/kratos/v2/log"
 )
 
 var _ log.Logger = (*Logger)(nil)

contrib/metrics/datadog/go.mod

@@ -5,7 +5,7 @@ go 1.16
 require (
 	github.com/DataDog/datadog-go v4.8.3+incompatible
 	github.com/Microsoft/go-winio v0.5.2 // indirect
-	github.com/go-kratos/kratos/v2 v2.4.1
+	github.com/go-kratos/kratos/v2 v2.5.1
 )
 
 replace github.com/go-kratos/kratos/v2 => ../../../

contrib/metrics/datadog/options.go

@@ -2,7 +2,7 @@ package datadog
 
 import "github.com/DataDog/datadog-go/statsd"
 
-// Option is doatadog option.
+// Option is datadog option.
 type Option func(*options)
 
 type options struct {

contrib/metrics/prometheus/counter.go

@@ -1,8 +1,9 @@
 package prometheus
 
 import (
-	"github.com/go-kratos/kratos/v2/metrics"
 	"github.com/prometheus/client_golang/prometheus"
+
+	"github.com/go-kratos/kratos/v2/metrics"
 )
 
 var _ metrics.Counter = (*counter)(nil)

contrib/metrics/prometheus/gauge.go

@@ -1,8 +1,9 @@
 package prometheus
 
 import (
-	"github.com/go-kratos/kratos/v2/metrics"
 	"github.com/prometheus/client_golang/prometheus"
+
+	"github.com/go-kratos/kratos/v2/metrics"
 )
 
 var _ metrics.Gauge = (*gauge)(nil)

contrib/metrics/prometheus/go.mod

@@ -3,7 +3,7 @@ module github.com/go-kratos/kratos/contrib/metrics/prometheus/v2
 go 1.16
 
 require (
-	github.com/go-kratos/kratos/v2 v2.4.1
+	github.com/go-kratos/kratos/v2 v2.5.1
 	github.com/prometheus/client_golang v1.12.2
 	github.com/prometheus/common v0.37.0
 )

contrib/metrics/prometheus/histogram.go

@@ -1,8 +1,9 @@
 package prometheus
 
 import (
-	"github.com/go-kratos/kratos/v2/metrics"
 	"github.com/prometheus/client_golang/prometheus"
+
+	"github.com/go-kratos/kratos/v2/metrics"
 )
 
 var _ metrics.Observer = (*histogram)(nil)

contrib/metrics/prometheus/summary.go

@@ -1,8 +1,9 @@
 package prometheus
 
 import (
-	"github.com/go-kratos/kratos/v2/metrics"
 	"github.com/prometheus/client_golang/prometheus"
+
+	"github.com/go-kratos/kratos/v2/metrics"
 )
 
 var _ metrics.Observer = (*summary)(nil)

contrib/opensergo/go.mod

@@ -3,12 +3,12 @@ module github.com/go-kratos/kratos/contrib/opensergo/v2
 go 1.17
 
 require (
-	github.com/go-kratos/kratos/v2 v2.4.1
+	github.com/go-kratos/kratos/v2 v2.5.1
 	github.com/opensergo/opensergo-go v0.0.0-20220331070310-e5b01fee4d1c
 	golang.org/x/net v0.0.0-20220520000938-2e3eb7b945c2
 	google.golang.org/genproto v0.0.0-20220519153652-3a47de7e79bd
 	google.golang.org/grpc v1.46.2
-	google.golang.org/protobuf v1.28.0
+	google.golang.org/protobuf v1.28.1
 )
 
 require (

contrib/opensergo/go.sum

@@ -167,8 +167,9 @@ google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlba
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
-google.golang.org/protobuf v1.28.0 h1:w43yiav+6bVFTBQFZX0r7ipe9JQ1QsbMgHwbBziscLw=
 google.golang.org/protobuf v1.28.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
+google.golang.org/protobuf v1.28.1 h1:d0NfwRgPtno5B1Wa6L2DAG+KivqkdutMf1UhdNx175w=
+google.golang.org/protobuf v1.28.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

contrib/opensergo/opensergo.go

@@ -2,7 +2,6 @@ package opensergo
 
 import (
 	"encoding/json"
-	"io/ioutil"
 	"net"
 	"net/url"
 	"os"
@@ -52,7 +51,7 @@ func New(opts ...Option) (*OpenSergo, error) {
 		}
 	}
 	if v := os.Getenv("OPENSERGO_BOOTSTRAP_CONFIG"); v != "" {
-		b, err := ioutil.ReadFile(v)
+		b, err := os.ReadFile(v)
 		if err != nil {
 			return nil, err
 		}
@@ -89,7 +88,7 @@ func (s *OpenSergo) ReportMetadata(ctx context.Context, app kratos.AppInfo) erro
 	}
 
 	for _, endpoint := range app.Endpoint() {
-		u, err := url.Parse(endpoint) //nolint
+		u, err := url.Parse(endpoint) // nolint
 		if err != nil {
 			return err
 		}

contrib/opensergo/opensergo_test.go

@@ -1,7 +1,6 @@
 package opensergo
 
 import (
-	"io/ioutil"
 	"net"
 	"os"
 	"path/filepath"
@@ -337,9 +336,9 @@ func TestOpenSergo(t *testing.T) {
 			},
 			preFunc: func(t *testing.T) {
 				fileContent := `{"endpoint": "127.0.0.1:9090"}`
-				err := ioutil.WriteFile("test.json", []byte(fileContent), 0o644)
+				err := os.WriteFile("test.json", []byte(fileContent), 0o644)
 				if err != nil {
-					t.Fatalf("ioutil.WriteFile error:%s", err)
+					t.Fatalf("os.WriteFile error:%s", err)
 				}
 				confPath, err := filepath.Abs("./test.json")
 				if err != nil {

contrib/registry/consul/client.go

@@ -29,6 +29,8 @@ type Client struct {
 	heartbeat bool
 	// deregisterCriticalServiceAfter time interval in seconds
 	deregisterCriticalServiceAfter int
+	// serviceChecks  user custom checks
+	serviceChecks api.AgentServiceChecks
 }
 
 // NewClient creates consul client
@@ -95,7 +97,7 @@ func (c *Client) Service(ctx context.Context, service string, index uint64, pass
 
 // Register register service instance to consul
 func (c *Client) Register(_ context.Context, svc *registry.ServiceInstance, enableHealthCheck bool) error {
-	addresses := make(map[string]api.ServiceAddress)
+	addresses := make(map[string]api.ServiceAddress, len(svc.Endpoints))
 	checkAddresses := make([]string, 0, len(svc.Endpoints))
 	for _, endpoint := range svc.Endpoints {
 		raw, err := url.Parse(endpoint)
@@ -130,6 +132,8 @@ func (c *Client) Register(_ context.Context, svc *registry.ServiceInstance, enab
 				Timeout:                        "5s",
 			})
 		}
+		// custom checks
+		asr.Checks = append(asr.Checks, c.serviceChecks...)
 	}
 	if c.heartbeat {
 		asr.Checks = append(asr.Checks, &api.AgentServiceCheck{
@@ -168,7 +172,7 @@ func (c *Client) Register(_ context.Context, svc *registry.ServiceInstance, enab
 	return nil
 }
 
-// Deregister deregister service by service ID
+// Deregister service by service ID
 func (c *Client) Deregister(_ context.Context, serviceID string) error {
 	c.cancel()
 	return c.cli.Agent().ServiceDeregister(serviceID)

contrib/registry/consul/go.mod

@@ -3,8 +3,8 @@ module github.com/go-kratos/kratos/contrib/registry/consul/v2
 go 1.16
 
 require (
-	github.com/go-kratos/kratos/v2 v2.4.1
-	github.com/hashicorp/consul/api v1.13.1
+	github.com/go-kratos/kratos/v2 v2.5.1
+	github.com/hashicorp/consul/api v1.14.0
 )
 
 replace github.com/go-kratos/kratos/v2 => ../../../

contrib/registry/consul/go.sum

@@ -1,16 +1,27 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/DataDog/datadog-go v3.2.0+incompatible/go.mod h1:LButxg5PwREeZtORoXG3tL4fMGNddJ+vMq1mwgfaqoQ=
 github.com/StackExchange/wmi v1.2.1/go.mod h1:rcmrprowKIVzvc+NUiLncP2uuArMWLCbu9SBzvHz7e8=
+github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
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@@ -18,6 +29,7 @@ github.com/cncf/udpa/go v0.0.0-20210930031921-04548b0d99d4/go.mod h1:6pvJx4me5XP
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@@ -55,8 +74,9 @@ github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw
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@@ -150,10 +216,12 @@ github.com/stretchr/testify v1.7.1 h1:5TQK59W5E3v0r2duFAb7P95B6hEeOyEnHRa8MjYSMT
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@@ -163,37 +231,45 @@ golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvx
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 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190922100055-0a153f010e69/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190924154521-2837fb4f24fe/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191008105621-543471e840be/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200122134326-e047566fdf82/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -201,6 +277,7 @@ golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210303074136-134d130e1a04/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423185535-09eb48e85fd7/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210816074244-15123e1e1f71/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
@@ -250,10 +327,14 @@ google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp0
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.28.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
+gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

contrib/registry/consul/registry.go

@@ -63,6 +63,15 @@ func WithDeregisterCriticalServiceAfter(interval int) Option {
 	}
 }
 
+// WithServiceCheck with service checks
+func WithServiceCheck(checks ...*api.AgentServiceCheck) Option {
+	return func(o *Registry) {
+		if o.cli != nil {
+			o.cli.serviceChecks = checks
+		}
+	}
+}
+
 // Config is consul registry config
 type Config struct {
 	*api.Config
@@ -100,19 +109,33 @@ func (r *Registry) Deregister(ctx context.Context, svc *registry.ServiceInstance
 }
 
 // GetService return service by name
-func (r *Registry) GetService(ctx context.Context, name string) (services []*registry.ServiceInstance, err error) {
+func (r *Registry) GetService(ctx context.Context, name string) ([]*registry.ServiceInstance, error) {
 	r.lock.RLock()
 	defer r.lock.RUnlock()
 	set := r.registry[name]
+
+	getRemote := func() []*registry.ServiceInstance {
+		services, _, err := r.cli.Service(ctx, name, 0, true)
+		if err == nil && len(services) > 0 {
+			return services
+		}
+		return nil
+	}
+
 	if set == nil {
+		if s := getRemote(); len(s) > 0 {
+			return s, nil
+		}
 		return nil, fmt.Errorf("service %s not resolved in registry", name)
 	}
 	ss, _ := set.services.Load().([]*registry.ServiceInstance)
 	if ss == nil {
+		if s := getRemote(); len(s) > 0 {
+			return s, nil
+		}
 		return nil, fmt.Errorf("service %s not found in registry", name)
 	}
-	services = append(services, ss...)
-	return
+	return ss, nil
 }
 
 // ListServices return service list.

contrib/registry/consul/registry_test.go

@@ -8,8 +8,9 @@ import (
 	"testing"
 	"time"
 
-	"github.com/go-kratos/kratos/v2/registry"
 	"github.com/hashicorp/consul/api"
+
+	"github.com/go-kratos/kratos/v2/registry"
 )
 
 func tcpServer(t *testing.T, lis net.Listener) {

contrib/registry/discovery/discovery.go

@@ -10,9 +10,10 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/go-kratos/kratos/v2/log"
 	"github.com/go-resty/resty/v2"
 	"github.com/pkg/errors"
+
+	"github.com/go-kratos/kratos/v2/log"
 )
 
 type Discovery struct {
@@ -308,7 +309,7 @@ func (d *Discovery) cancel(ins *discoveryInstance) (err error) {
 func (d *Discovery) broadcast(apps map[string]*disInstancesInfo) {
 	for appID, v := range apps {
 		var count int
-		// v maybe nil in old version(less than v1.1) Discovery,check incase of panic
+		// v maybe nil in old version(less than v1.1) Discovery, check in case of panic
 		if v == nil {
 			continue
 		}
@@ -439,7 +440,7 @@ func (r *Resolve) fetch(ctx context.Context) (ins *disInstancesInfo, ok bool) {
 		ins = new(disInstancesInfo)
 		ins.LastTs = appIns.LastTs
 		ins.Scheduler = appIns.Scheduler
-		ins.Instances = make(map[string][]*discoveryInstance)
+		ins.Instances = make(map[string][]*discoveryInstance, len(appIns.Instances))
 		for zone, in := range appIns.Instances {
 			ins.Instances[zone] = in
 		}

contrib/registry/discovery/go.mod

@@ -3,7 +3,7 @@ module github.com/go-kratos/kratos/contrib/registry/discovery/v2
 go 1.16
 
 require (
-	github.com/go-kratos/kratos/v2 v2.4.1
+	github.com/go-kratos/kratos/v2 v2.5.1
 	github.com/go-resty/resty/v2 v2.7.0
 	github.com/pkg/errors v0.9.1
 )

contrib/registry/discovery/impl_registrar.go

@@ -62,7 +62,7 @@ func (d *Discovery) Register(ctx context.Context, service *registry.ServiceInsta
 	return
 }
 
-//  register an instance with Discovery
+// register an instance with Discovery
 func (d *Discovery) register(ctx context.Context, ins *discoveryInstance) (err error) {
 	d.mutex.RLock()
 	c := d.config

contrib/registry/etcd/go.mod

@@ -3,7 +3,7 @@ module github.com/go-kratos/kratos/contrib/registry/etcd/v2
 go 1.16
 
 require (
-	github.com/go-kratos/kratos/v2 v2.4.1
+	github.com/go-kratos/kratos/v2 v2.5.1
 	go.etcd.io/etcd/client/v3 v3.5.4
 	google.golang.org/grpc v1.46.2
 )

contrib/registry/etcd/registry.go

@@ -6,8 +6,9 @@ import (
 	"math/rand"
 	"time"
 
-	"github.com/go-kratos/kratos/v2/registry"
 	clientv3 "go.etcd.io/etcd/client/v3"
+
+	"github.com/go-kratos/kratos/v2/registry"
 )
 
 var (
@@ -153,7 +154,7 @@ func (r *Registry) heartBeat(ctx context.Context, leaseID clientv3.LeaseID, key
 	for {
 		if curLeaseID == 0 {
 			// try to registerWithKV
-			retreat := []int{}
+			var retreat []int
 			for retryCnt := 0; retryCnt < r.opts.maxRetry; retryCnt++ {
 				if ctx.Err() != nil {
 					return

contrib/registry/etcd/registry_test.go

@@ -8,8 +8,9 @@ import (
 
 	"google.golang.org/grpc"
 
-	"github.com/go-kratos/kratos/v2/registry"
 	clientv3 "go.etcd.io/etcd/client/v3"
+
+	"github.com/go-kratos/kratos/v2/registry"
 )
 
 func TestRegistry(t *testing.T) {

contrib/registry/etcd/watcher.go

@@ -3,11 +3,12 @@ package etcd
 import (
 	"context"
 
-	"github.com/go-kratos/kratos/v2/registry"
 	clientv3 "go.etcd.io/etcd/client/v3"
+
+	"github.com/go-kratos/kratos/v2/registry"
 )
 
-var _ registry.Watcher = &watcher{}
+var _ registry.Watcher = (*watcher)(nil)
 
 type watcher struct {
 	key         string

contrib/registry/eureka/client.go

@@ -6,7 +6,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"math/rand"
 	"net/http"
 	"strings"
@@ -83,7 +82,7 @@ type DataCenterInfo struct {
 	Class string `json:"@class"`
 }
 
-var _ APIInterface = new(Client)
+var _ APIInterface = (*Client)(nil)
 
 type APIInterface interface {
 	Register(ctx context.Context, ep Endpoint) error
@@ -323,12 +322,12 @@ func (e *Client) do(ctx context.Context, method string, params []string, input i
 			continue
 		}
 		defer func() {
-			_, _ = io.Copy(ioutil.Discard, resp.Body)
+			_, _ = io.Copy(io.Discard, resp.Body)
 			resp.Body.Close()
 		}()
 
 		if output != nil && resp.StatusCode/100 == 2 {
-			data, err := ioutil.ReadAll(resp.Body)
+			data, err := io.ReadAll(resp.Body)
 			if err != nil {
 				return err
 			}

contrib/registry/eureka/eureka.go

@@ -28,7 +28,7 @@ func NewAPI(ctx context.Context, client *Client, refreshInterval time.Duration)
 		refreshInterval: refreshInterval,
 	}
 
-	// 首次广播一次
+	// it is required to broadcast for the first time
 	e.broadcast()
 
 	go e.refresh(ctx)
@@ -93,7 +93,7 @@ func (e *API) Register(ctx context.Context, serviceName string, endpoints ...End
 	return nil
 }
 
-// Deregister 中的ctx 和 register ctx 是同一个
+// Deregister ctx is the same as register ctx
 func (e *API) Deregister(ctx context.Context, endpoints []Endpoint) error {
 	for _, ep := range endpoints {
 		if err := e.cli.Deregister(ctx, ep.AppID, ep.InstanceID); err != nil {
@@ -121,7 +121,7 @@ func (e *API) GetService(ctx context.Context, serverName string) []Instance {
 		return ins
 	}
 
-	// 如果不再allinstances 中可以尝试再单独获取一次
+	// if not in allInstances of API, you can try to obtain it separately again
 	return e.cli.FetchAppUpInstances(ctx, appID)
 }
 

contrib/registry/eureka/register.go

@@ -92,12 +92,9 @@ func (r *Registry) Watch(ctx context.Context, serviceName string) (registry.Watc
 }
 
 func (r *Registry) Endpoints(service *registry.ServiceInstance) []Endpoint {
-	var (
-		res   = []Endpoint{}
-		start int
-	)
+	res := make([]Endpoint, 0, len(service.Endpoints))
 	for _, ep := range service.Endpoints {
-		start = strings.Index(ep, "//")
+		start := strings.Index(ep, "//")
 		end := strings.LastIndex(ep, ":")
 		appID := strings.ToUpper(service.Name)
 		ip := ep[start+2 : end]

contrib/registry/eureka/watcher.go

@@ -6,7 +6,7 @@ import (
 	"github.com/go-kratos/kratos/v2/registry"
 )
 
-var _ registry.Watcher = &watcher{}
+var _ registry.Watcher = (*watcher)(nil)
 
 type watcher struct {
 	ctx        context.Context

contrib/registry/kubernetes/go.mod

@@ -3,7 +3,7 @@ module github.com/go-kratos/kratos/contrib/registry/kubernetes/v2
 go 1.16
 
 require (
-	github.com/go-kratos/kratos/v2 v2.4.1
+	github.com/go-kratos/kratos/v2 v2.5.1
 	github.com/json-iterator/go v1.1.12
 	k8s.io/api v0.24.3
 	k8s.io/apimachinery v0.24.3

contrib/registry/kubernetes/registry.go

@@ -11,7 +11,6 @@ import (
 	"strings"
 	"time"
 
-	"github.com/go-kratos/kratos/v2/registry"
 	jsoniter "github.com/json-iterator/go"
 	corev1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
@@ -21,6 +20,8 @@ import (
 	"k8s.io/client-go/kubernetes"
 	listerv1 "k8s.io/client-go/listers/core/v1"
 	"k8s.io/client-go/tools/cache"
+
+	"github.com/go-kratos/kratos/v2/registry"
 )
 
 // Defines the key name of specific fields
@@ -32,37 +33,37 @@ import (
 // kratos-service-protocols: define the protocols of the service
 //
 // Example Deployment:
-//
-// apiVersion: apps/v1
-// kind: Deployment
-// metadata:
-//  name: nginx
-//  labels:
-//    app: nginx
-// spec:
-//  replicas: 5
-//  selector:
-//    matchLabels:
-//      app: nginx
-//  template:
-//    metadata:
-//      labels:
-//        app: nginx
-//        kratos-service-id: "56991810-c77f-4a95-8190-393efa9c1a61"
-//        kratos-service-app: "nginx"
-//        kratos-service-version: "v3.5.0"
-//      annotations:
-//        kratos-service-protocols: |
-//          {"80": "http"}
-//        kratos-service-metadata: |
-//          {"region": "sh", "zone": "sh001", "cluster": "pd"}
-//    spec:
-//      containers:
-//        - name: nginx
-//          image: nginx:1.7.9
-//          ports:
-//            - containerPort: 80
-//
+/*
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+name: nginx
+labels:
+  app: nginx
+spec:
+replicas: 5
+selector:
+  matchLabels:
+    app: nginx
+template:
+  metadata:
+    labels:
+      app: nginx
+      kratos-service-id: "56991810-c77f-4a95-8190-393efa9c1a61"
+      kratos-service-app: "nginx"
+      kratos-service-version: "v3.5.0"
+    annotations:
+      kratos-service-protocols: |
+        {"80": "http"}
+      kratos-service-metadata: |
+        {"region": "sh", "zone": "sh001", "cluster": "pd"}
+  spec:
+    containers:
+      - name: nginx
+        image: nginx:1.7.9
+        ports:
+          - containerPort: 80
+*/
 const (
 	// LabelsKeyServiceID is used to define the ID of the service
 	LabelsKeyServiceID = "kratos-service-id"
@@ -299,7 +300,7 @@ func (iter *Iterator) Next() ([]*registry.ServiceInstance, error) {
 	}
 }
 
-// Close is used to close the iterator
+// Stop is used to close the iterator
 func (iter *Iterator) Stop() error {
 	select {
 	case <-iter.stopCh:

contrib/registry/nacos/go.mod

@@ -3,7 +3,7 @@ module github.com/go-kratos/kratos/contrib/registry/nacos/v2
 go 1.16
 
 require (
-	github.com/go-kratos/kratos/v2 v2.4.1
+	github.com/go-kratos/kratos/v2 v2.5.1
 	github.com/nacos-group/nacos-sdk-go v1.0.9
 )
 

contrib/registry/nacos/registry.go

@@ -2,6 +2,7 @@ package nacos
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"net"
 	"net/url"
@@ -14,6 +15,8 @@ import (
 	"github.com/go-kratos/kratos/v2/registry"
 )
 
+var ErrServiceInstanceNameEmpty = errors.New("kratos/nacos: ServiceInstance.Name can not be empty")
+
 var (
 	_ registry.Registrar = (*Registry)(nil)
 	_ registry.Discovery = (*Registry)(nil)
@@ -82,7 +85,7 @@ func New(cli naming_client.INamingClient, opts ...Option) (r *Registry) {
 // Register the registration.
 func (r *Registry) Register(_ context.Context, si *registry.ServiceInstance) error {
 	if si.Name == "" {
-		return fmt.Errorf("kratos/nacos: serviceInstance.name can not be empty")
+		return ErrServiceInstanceNameEmpty
 	}
 	for _, endpoint := range si.Endpoints {
 		u, err := url.Parse(endpoint)

contrib/registry/nacos/watcher.go

@@ -4,10 +4,11 @@ import (
 	"context"
 	"fmt"
 
-	"github.com/go-kratos/kratos/v2/registry"
 	"github.com/nacos-group/nacos-sdk-go/clients/naming_client"
 	"github.com/nacos-group/nacos-sdk-go/model"
 	"github.com/nacos-group/nacos-sdk-go/vo"
+
+	"github.com/go-kratos/kratos/v2/registry"
 )
 
 var _ registry.Watcher = (*watcher)(nil)

contrib/registry/polaris/go.mod

@@ -3,7 +3,7 @@ module github.com/go-kratos/kratos/contrib/registry/polaris/v2
 go 1.16
 
 require (
-	github.com/go-kratos/kratos/v2 v2.4.1
+	github.com/go-kratos/kratos/v2 v2.5.1
 	github.com/polarismesh/polaris-go v1.1.0
 )
 

contrib/registry/servicecomb/README.md

@@ -0,0 +1,67 @@
+# Servicecomb Registry
+
+## example
+### server
+```go
+package main
+
+import (
+	"log"
+
+	"github.com/go-chassis/sc-client"
+	"github.com/go-kratos/kratos/contrib/registry/servicecomb/v2"
+	"github.com/go-kratos/kratos/v2"
+)
+
+func main() {
+	c, err := sc.NewClient(sc.Options{
+		Endpoints: []string{"127.0.0.1:30100"},
+	})
+	if err != nil {
+		log.Panic(err)
+	}
+	r := servicecomb.NewRegistry(c)
+	app := kratos.New(
+		kratos.Name("helloServicecomb"),
+		kratos.Registrar(r),
+	)
+	if err := app.Run(); err != nil {
+		log.Fatal(err)
+	}
+}
+
+```
+### client
+```go
+package main
+
+import (
+	"context"
+	"log"
+
+	"github.com/go-chassis/sc-client"
+	"github.com/go-kratos/kratos/contrib/registry/servicecomb/v2"
+	"github.com/go-kratos/kratos/v2/transport/grpc"
+)
+
+func main() {
+	c, err := sc.NewClient(sc.Options{
+		Endpoints: []string{"127.0.0.1:30100"},
+	})
+	if err != nil {
+		log.Panic(err)
+	}
+	r := servicecomb.NewRegistry(c)
+	ctx := context.Background()
+	conn, err := grpc.DialInsecure(
+		ctx,
+		grpc.WithEndpoint("discovery:///helloServicecomb"),
+		grpc.WithDiscovery(r),
+	)
+	if err != nil {
+		return
+	}
+	defer conn.Close()
+}
+
+```

contrib/registry/servicecomb/go.mod

@@ -0,0 +1,11 @@
+module github.com/go-kratos/kratos/contrib/registry/servicecomb/v2
+
+go 1.16
+
+require (
+	github.com/go-chassis/cari v0.6.0
+	github.com/go-chassis/sc-client v0.6.1-0.20210615014358-a45e9090c751
+	github.com/go-kratos/kratos/v2 v2.3.1
+	github.com/gofrs/uuid v4.2.0+incompatible
+	golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4
+)