diff --git a/cmd/mirror.go b/cmd/mirror.go
index c4f7ac1e62..2616fce9f1 100644
--- a/cmd/mirror.go
+++ b/cmd/mirror.go
@@ -489,41 +489,6 @@ func newMirrorPublishCmd() *cobra.Command {
 	return cmd
 }
 
-func doPublish(
-	component, version, entry, desc string,
-	publishInfo *model.PublishInfo,
-	hashes map[string]string, length int64,
-	standalone, hidden bool,
-	privPath, goos, goarch string,
-	flagSet set.StringSet,
-) error {
-	env := environment.GlobalEnv()
-	m, err := env.V1Repository().FetchComponentManifest(component, true)
-	if err != nil {
-		if errors.Cause(err) == repository.ErrUnknownComponent {
-			fmt.Printf("Creating component %s\n", component)
-			publishInfo.Stand = &standalone
-			publishInfo.Hide = &hidden
-		} else {
-			return err
-		}
-	} else if flagSet.Exist("standalone") || flagSet.Exist("hide") {
-		fmt.Println("This is not a new component, --standalone and --hide flag will be omitted")
-	}
-
-	m = repository.UpdateManifestForPublish(m, component, version, entry, goos, goarch, desc, v1manifest.FileHash{
-		Hashes: hashes,
-		Length: uint(length),
-	})
-
-	manifest, err := sign(privPath, m)
-	if err != nil {
-		return err
-	}
-
-	return env.V1Repository().Mirror().Publish(manifest, publishInfo)
-}
-
 func validatePlatform(goos, goarch string) error {
 	// Only support any/any, don't support linux/any, any/amd64 .etc.
 	if goos == "any" && goarch == "any" {
diff --git a/components/playground/instance/proc_attr_default.go b/components/playground/instance/proc_attr_default.go
index 01d4a34878..6c22e6e928 100644
--- a/components/playground/instance/proc_attr_default.go
+++ b/components/playground/instance/proc_attr_default.go
@@ -11,6 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 //
+//go:build !linux
 // +build !linux
 
 package instance
diff --git a/components/playground/instance/proc_attr_linux.go b/components/playground/instance/proc_attr_linux.go
index 2ba53e8362..660ab968b7 100644
--- a/components/playground/instance/proc_attr_linux.go
+++ b/components/playground/instance/proc_attr_linux.go
@@ -11,6 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 //
+//go:build linux
 // +build linux
 
 package instance
diff --git a/pkg/cluster/embed/pkged.go b/pkg/cluster/embed/pkged.go
index 99b965d231..31ef418502 100644
--- a/pkg/cluster/embed/pkged.go
+++ b/pkg/cluster/embed/pkged.go
@@ -1,5 +1,6 @@
 // Code generated by pkger; DO NOT EDIT.
 
+//go:build !skippkger
 // +build !skippkger
 
 package embed
diff --git a/pkg/environment/env.go b/pkg/environment/env.go
index 96c99ae45d..dde59594ce 100644
--- a/pkg/environment/env.go
+++ b/pkg/environment/env.go
@@ -24,7 +24,6 @@ import (
 	"github.com/pingcap/errors"
 	"github.com/pingcap/tiup/pkg/localdata"
 	"github.com/pingcap/tiup/pkg/repository"
-	"github.com/pingcap/tiup/pkg/repository/v0manifest"
 	"github.com/pingcap/tiup/pkg/repository/v1manifest"
 	pkgver "github.com/pingcap/tiup/pkg/repository/version"
 	"github.com/pingcap/tiup/pkg/verbose"
@@ -301,18 +300,6 @@ func (env *Environment) DownloadComponentIfMissing(component string, ver pkgver.
 	return ver, nil
 }
 
-// latestManifest returns the latest v0 component manifest and refresh the local cache
-func (env *Environment) latestManifest() (*v0manifest.ComponentManifest, error) {
-	manifest, err := env.repo.Manifest()
-	if err != nil {
-		return nil, err
-	}
-	if err := env.profile.SaveManifest(manifest); err != nil {
-		return nil, err
-	}
-	return manifest, err
-}
-
 // GetComponentInstalledVersion return the installed version of component.
 func (env *Environment) GetComponentInstalledVersion(component string, version pkgver.Version) (pkgver.Version, error) {
 	return env.profile.GetComponentInstalledVersion(component, version)
diff --git a/pkg/repository/clone_mirror.go b/pkg/repository/clone_mirror.go
index c2fcf3fbc2..f5bf7e6a64 100644
--- a/pkg/repository/clone_mirror.go
+++ b/pkg/repository/clone_mirror.go
@@ -304,8 +304,8 @@ func cloneComponents(repo *V1Repository,
 						continue
 					}
 				}
-			  if _, err := repo.FetchComponentManifest(name, false); err != nil || versionItem.Yanked {
-				  // The component or the version is yanked, skip download binary
+				if _, err := repo.FetchComponentManifest(name, false); err != nil || versionItem.Yanked {
+					// The component or the version is yanked, skip download binary
 					continue
 				}
 				if err := download(targetDir, tmpDir, repo, &versionItem); err != nil {