fix: Fix lint of files in cmd/kratos (#1442)

cmd/kratos/internal/base/path.go

@@ -20,7 +20,7 @@ func kratosHome() string {
 	}
 	home := path.Join(dir, ".kratos")
 	if _, err := os.Stat(home); os.IsNotExist(err) {
-		if err := os.MkdirAll(home, 0700); err != nil {
+		if err := os.MkdirAll(home, 0o700); err != nil {
 			log.Fatal(err)
 		}
 	}
@@ -30,7 +30,7 @@ func kratosHome() string {
 func kratosHomeWithDir(dir string) string {
 	home := path.Join(kratosHome(), dir)
 	if _, err := os.Stat(home); os.IsNotExist(err) {
-		if err := os.MkdirAll(home, 0700); err != nil {
+		if err := os.MkdirAll(home, 0o700); err != nil {
 			log.Fatal(err)
 		}
 	}
@@ -103,7 +103,7 @@ func hasSets(name string, sets []string) bool {
 }
 
 func Tree(path string, dir string) {
-	filepath.Walk(path, func(path string, info os.FileInfo, err error) error {
+	_ = filepath.Walk(path, func(path string, info os.FileInfo, err error) error {
 		if !info.IsDir() {
 			fmt.Printf("%s %s (%v bytes)\n", color.GreenString("CREATED"), strings.Replace(path, dir+"/", "", -1), info.Size())
 		}

cmd/kratos/internal/base/repo.go

@@ -39,7 +39,7 @@ func (r *Repo) Path() string {
 	if end == -1 {
 		end = len(r.url)
 	}
-	branch := ""
+	var branch string
 	if r.branch == "" {
 		branch = "@main"
 	} else {
@@ -69,7 +69,7 @@ func (r *Repo) Clone(ctx context.Context) error {
 	if _, err := os.Stat(r.Path()); !os.IsNotExist(err) {
 		return r.Pull(ctx)
 	}
-	cmd := &exec.Cmd{}
+	var cmd *exec.Cmd
 	if r.branch == "" {
 		cmd = exec.Command("git", "clone", r.url, r.Path())
 	} else {

cmd/kratos/internal/change/change.go

@@ -14,8 +14,11 @@ var CmdChange = &cobra.Command{
 	Long:  "Get a kratos release or commits info. Example: kratos changelog dev or kratos changelog {version}",
 	Run:   run,
 }
-var token string
+
-var repoURL string
+var (
+	token   string
+	repoURL string
+)
 
 func init() {
 	if repoURL = os.Getenv("KRATOS_REPO"); repoURL == "" {
@@ -26,8 +29,8 @@ func init() {
 }
 
 func run(cmd *cobra.Command, args []string) {
-	owner, repo := ParseGithubUrl(repoURL)
+	owner, repo := ParseGithubURL(repoURL)
-	api := GithubApi{Owner: owner, Repo: repo, Token: token}
+	api := GithubAPI{Owner: owner, Repo: repo, Token: token}
 	version := "latest"
 	if len(args) > 0 {
 		version = args[0]

cmd/kratos/internal/change/get.go

@@ -19,7 +19,7 @@ type ReleaseInfo struct {
 	} `json:"author"`
 	PublishedAt string `json:"published_at"`
 	Body        string `json:"body"`
-	HtmlUrl     string `json:"html_url"`
+	HTMLURL     string `json:"html_url"`
 }
 
 type CommitInfo struct {
@@ -32,20 +32,20 @@ type ErrorInfo struct {
 	Message string
 }
 
-type GithubApi struct {
+type GithubAPI struct {
 	Owner string
 	Repo  string
 	Token string
 }
 
 // GetReleaseInfo for getting kratos release info.
-func (g *GithubApi) GetReleaseInfo(version string) ReleaseInfo {
+func (g *GithubAPI) GetReleaseInfo(version string) ReleaseInfo {
 	api := fmt.Sprintf("https://api.github.com/repos/%s/%s/releases/latest", g.Owner, g.Repo)
 	if version != "latest" {
 		api = fmt.Sprintf("https://api.github.com/repos/%s/%s/releases/tags/%s", g.Owner, g.Repo, version)
 	}
 	resp, code := requestGithubAPI(api, "GET", nil, g.Token)
-	if code != 200 {
+	if code != http.StatusOK {
 		printGithubErrorInfo(resp)
 	}
 	releaseInfo := ReleaseInfo{}
@@ -57,14 +57,14 @@ func (g *GithubApi) GetReleaseInfo(version string) ReleaseInfo {
 }
 
 // GetCommitsInfo for getting kratos commits info.
-func (g *GithubApi) GetCommitsInfo() []CommitInfo {
+func (g *GithubAPI) GetCommitsInfo() []CommitInfo {
 	info := g.GetReleaseInfo("latest")
 	page := 1
 	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)
 		resp, code := requestGithubAPI(url, "GET", nil, g.Token)
-		if code != 200 {
+		if code != http.StatusOK {
 			printGithubErrorInfo(resp)
 		}
 		var res []CommitInfo
@@ -73,7 +73,7 @@ func (g *GithubApi) GetCommitsInfo() []CommitInfo {
 			fatal(err)
 		}
 		list = append(list, res...)
-		if len(res) < 100 {
+		if len(res) < http.StatusContinue {
 			break
 		}
 		page++
@@ -179,14 +179,14 @@ func ParseReleaseInfo(info ReleaseInfo) string {
 		"Author: %s\nDate: %s\nUrl: %s\n\n%s\n\n%s\n\n%s\n",
 		info.Author.Login,
 		info.PublishedAt,
-		info.HtmlUrl,
+		info.HTMLURL,
 		splitters,
 		body,
 		splitters,
 	)
 }
 
-func ParseGithubUrl(url string) (owner string, repo string) {
+func ParseGithubURL(url string) (owner string, repo string) {
 	var start int
 	start = strings.Index(url, "//")
 	if start == -1 {

cmd/kratos/internal/project/new.go

@@ -20,7 +20,6 @@ type Project struct {
 
 // New new a project from remote repo.
 func (p *Project) New(ctx context.Context, dir string, layout string, branch string) error {
-
 	to := path.Join(dir, p.Name)
 	if _, err := os.Stat(to); !os.IsNotExist(err) {
 		fmt.Printf("🚫 %s already exists\n", p.Name)
@@ -29,7 +28,10 @@ func (p *Project) New(ctx context.Context, dir string, layout string, branch str
 			Message: "📂 Do you want to override the folder ?",
 			Help:    "Delete the existing folder and create the project.",
 		}
-		survey.AskOne(prompt, &override)
+		e := survey.AskOne(prompt, &override)
+		if e != nil {
+			return e
+		}
 		if !override {
 			return err
 		}
@@ -40,10 +42,13 @@ func (p *Project) New(ctx context.Context, dir string, layout string, branch str
 	if err := repo.CopyTo(ctx, to, p.Path, []string{".git", ".github"}); err != nil {
 		return err
 	}
-	os.Rename(
+	e := os.Rename(
 		path.Join(to, "cmd", "server"),
 		path.Join(to, "cmd", p.Name),
 	)
+	if e != nil {
+		return e
+	}
 	base.Tree(to, dir)
 
 	fmt.Printf("\n🍺 Project creation succeeded %s\n", color.GreenString(p.Name))

cmd/kratos/internal/project/project.go

@@ -19,8 +19,10 @@ var CmdNew = &cobra.Command{
 	Run:   run,
 }
 
-var repoURL string
+var (
-var branch string
+	repoURL string
+	branch  string
+)
 
 func init() {
 	if repoURL = os.Getenv("KRATOS_LAYOUT_REPO"); repoURL == "" {
@@ -43,8 +45,8 @@ func run(cmd *cobra.Command, args []string) {
 			Message: "What is project name ?",
 			Help:    "Created project name.",
 		}
-		survey.AskOne(prompt, &name)
+		err = survey.AskOne(prompt, &name)
-		if name == "" {
+		if err != nil || name == "" {
 			return
 		}
 	} else {

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

@@ -29,7 +29,7 @@ func (p *Proto) Generate() error {
 	}
 	to := path.Join(wd, p.Path)
 	if _, err := os.Stat(to); os.IsNotExist(err) {
-		if err := os.MkdirAll(to, 0700); err != nil {
+		if err := os.MkdirAll(to, 0o700); err != nil {
 			return err
 		}
 	}
@@ -37,5 +37,5 @@ func (p *Proto) Generate() error {
 	if _, err := os.Stat(name); !os.IsNotExist(err) {
 		return fmt.Errorf("%s already exists", p.Name)
 	}
-	return ioutil.WriteFile(name, body, 0644)
+	return ioutil.WriteFile(name, body, 0o644)
 }

cmd/kratos/internal/proto/client/client.go

@@ -14,15 +14,13 @@ import (
 	"github.com/spf13/cobra"
 )
 
-var (
+// CmdClient represents the source command.
-	// CmdClient represents the source command.
+var CmdClient = &cobra.Command{
-	CmdClient = &cobra.Command{
 	Use:   "client",
 	Short: "Generate the proto client code",
 	Long:  "Generate the proto client code. Example: kratos proto client helloworld.proto",
 	Run:   run,
-	}
+}
-)
 
 var protoPath string
 

cmd/kratos/internal/proto/proto.go

@@ -23,5 +23,4 @@ func init() {
 }
 
 func run(cmd *cobra.Command, args []string) {
-
 }

cmd/kratos/internal/proto/server/server.go

@@ -60,8 +60,10 @@ func run(cmd *cobra.Command, args []string) {
 			for _, e := range s.Elements {
 				r, ok := e.(*proto.RPC)
 				if ok {
-					cs.Methods = append(cs.Methods, &Method{Service: s.Name, Name: r.Name, Request: r.RequestType,
+					cs.Methods = append(cs.Methods, &Method{
-						Reply: r.ReturnsType, Type: getMethodType(r.StreamsRequest, r.StreamsReturns)})
+						Service: s.Name, Name: r.Name, Request: r.RequestType,
+						Reply: r.ReturnsType, Type: getMethodType(r.StreamsRequest, r.StreamsReturns),
+					})
 				}
 			}
 			res = append(res, cs)
@@ -81,7 +83,7 @@ func run(cmd *cobra.Command, args []string) {
 		if err != nil {
 			log.Fatal(err)
 		}
-		if err := ioutil.WriteFile(to, b, 0644); err != nil {
+		if err := ioutil.WriteFile(to, b, 0o644); err != nil {
 			log.Fatal(err)
 		}
 		fmt.Println(to)

cmd/kratos/internal/proto/server/template.go

@@ -34,7 +34,8 @@ func New{{ .Service }}Service() *{{ .Service }}Service {
 {{- $s1 := "google.protobuf.Empty" }}
 {{ range .Methods }}
 {{- if eq .Type 1 }}
-func (s *{{ .Service }}Service) {{ .Name }}(ctx context.Context, req {{ if eq .Request $s1 }}*emptypb.Empty{{ else }}*pb.{{ .Request }}{{ end }}) ({{ if eq .Reply $s1 }}*emptypb.Empty{{ else }}*pb.{{ .Reply }}{{ end }}, error) {
+func (s *{{ .Service }}Service) {{ .Name }}(ctx context.Context, req {{ if eq .Request $s1 }}*emptypb.Empty
+{{ else }}*pb.{{ .Request }}{{ end }}) ({{ if eq .Reply $s1 }}*emptypb.Empty{{ else }}*pb.{{ .Reply }}{{ end }}, error) {
 	return {{ if eq .Reply $s1 }}&emptypb.Empty{}{{ else }}&pb.{{ .Reply }}{}{{ end }}, nil
 }
 
@@ -70,7 +71,8 @@ func (s *{{ .Service }}Service) {{ .Name }}(conn pb.{{ .Service }}_{{ .Name }}Se
 }
 
 {{- else if eq .Type 4 }}
-func (s *{{ .Service }}Service) {{ .Name }}(req {{ if eq .Request $s1 }}*emptypb.Empty{{ else }}*pb.{{ .Request }}{{ end }}, conn pb.{{ .Service }}_{{ .Name }}Server) error {
+func (s *{{ .Service }}Service) {{ .Name }}(req {{ if eq .Request $s1 }}*emptypb.Empty
+{{ else }}*pb.{{ .Request }}{{ end }}, conn pb.{{ .Service }}_{{ .Name }}Server) error {
 	for {
 		err := conn.Send(&pb.{{ .Reply }}{})
 		if err != nil {
@@ -115,13 +117,14 @@ type Method struct {
 }
 
 func (s *Service) execute() ([]byte, error) {
+	const empty = "google.protobuf.Empty"
 	buf := new(bytes.Buffer)
 	for _, method := range s.Methods {
-		if (method.Type == unaryType && (method.Request == "google.protobuf.Empty" || method.Reply == "google.protobuf.Empty")) ||
+		if (method.Type == unaryType && (method.Request == empty || method.Reply == empty)) ||
-			(method.Type == returnsStreamsType && method.Request == "google.protobuf.Empty") {
+			(method.Type == returnsStreamsType && method.Request == empty) {
 			s.GoogleEmpty = true
 		}
-		if method.Type == twoWayStreamsType || method.Type == returnsStreamsType {
+		if method.Type == twoWayStreamsType || method.Type == requestStreamsType {
 			s.UseIO = true
 		}
 		if method.Type == unaryType {

cmd/kratos/internal/run/run.go

@@ -48,15 +48,15 @@ func Run(cmd *cobra.Command, args []string) {
 			}
 		} else {
 			var cmdPaths []string
-			for k, _ := range cmdPath {
+			for k := range cmdPath {
 				cmdPaths = append(cmdPaths, k)
 			}
 			prompt := &survey.Select{
 				Message: "Which directory do you want to run?",
 				Options: cmdPaths,
 			}
-			survey.AskOne(prompt, &dir)
+			e := survey.AskOne(prompt, &dir)
-			if dir == "" {
+			if e != nil || dir == "" {
 				return
 			}
 			dir = path.Join(cmdPath[dir], dir)
@@ -70,7 +70,6 @@ func Run(cmd *cobra.Command, args []string) {
 		fmt.Fprintf(os.Stderr, "\033[31mERROR: %s\033[m\n", err.Error())
 		return
 	}
-	return
 }
 
 func findCMD(base string) (map[string]string, error) {
@@ -110,7 +109,7 @@ func findCMD(base string) (map[string]string, error) {
 		if root {
 			break
 		}
-		tmp = filepath.Join(base, "..")
+		_ = filepath.Join(base, "..")
 	}
 	return map[string]string{"": base}, nil
 }

hack/.lintcheck_failures

@@ -1,5 +1,4 @@
 ./examples
-./cmd/kratos
 ./contrib/metrics/datadog
 ./contrib/config/nacos
 ./contrib/config/apollo