diff --git a/main.go b/main.go
index 6b1c314..08ccc54 100644
--- a/main.go
+++ b/main.go
@@ -38,7 +38,6 @@ import (
 	"github.com/b3log/wide/notification"
 	"github.com/b3log/wide/output"
 	"github.com/b3log/wide/playground"
-	"github.com/b3log/wide/scm/git"
 	"github.com/b3log/wide/session"
 	"github.com/b3log/wide/util"
 )
@@ -179,9 +178,6 @@ func main() {
 	http.HandleFunc(conf.Wide.Context+"/playground/stop", handlerWrapper(playground.StopHandler))
 	http.HandleFunc(conf.Wide.Context+"/playground/autocomplete", handlerWrapper(playground.AutocompleteHandler))
 
-	// git
-	http.HandleFunc(conf.Wide.Context+"/git/clone", handlerWrapper(git.CloneHandler))
-
 	logger.Infof("Wide is running [%s]", conf.Wide.Server+conf.Wide.Context)
 
 	err := http.ListenAndServe(conf.Wide.Server, nil)
diff --git a/scm/git/clone.go b/scm/git/clone.go
deleted file mode 100644
index 6c58816..0000000
--- a/scm/git/clone.go
+++ /dev/null
@@ -1,146 +0,0 @@
-// Copyright (c) 2014-2019, b3log.org & hacpai.com
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     https://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package git
-
-import (
-	"bufio"
-	"encoding/json"
-	"io"
-	"io/ioutil"
-	"math/rand"
-	"net/http"
-	"os"
-	"os/exec"
-
-	"github.com/b3log/wide/conf"
-	"github.com/b3log/wide/i18n"
-	"github.com/b3log/wide/log"
-	"github.com/b3log/wide/session"
-	"github.com/b3log/wide/util"
-)
-
-// Logger.
-var logger = log.NewLogger(os.Stdout)
-
-// Clone handles request of git clone.
-func CloneHandler(w http.ResponseWriter, r *http.Request) {
-	result := util.NewResult()
-	defer util.RetResult(w, r, result)
-
-	httpSession, _ := session.HTTPSession.Get(r, "wide-session")
-	if httpSession.IsNew {
-		http.Error(w, "Forbidden", http.StatusForbidden)
-
-		return
-	}
-	username := httpSession.Values["username"].(string)
-	locale := conf.GetUser(username).Locale
-
-	var args map[string]interface{}
-	if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
-		logger.Error(err)
-		result.Succ = false
-
-		return
-	}
-
-	sid := args["sid"].(string)
-	path := args["path"].(string)
-	repository := args["repository"].(string)
-
-	cmd := exec.Command("git", "clone", repository)
-	cmd.Dir = path
-
-	stdout, err := cmd.StdoutPipe()
-	if nil != err {
-		logger.Error(err)
-		result.Succ = false
-
-		return
-	}
-
-	stderr, err := cmd.StderrPipe()
-	if nil != err {
-		logger.Error(err)
-		result.Succ = false
-
-		return
-	}
-
-	if !result.Succ {
-		return
-	}
-
-	channelRet := map[string]interface{}{}
-
-	if nil != session.OutputWS[sid] {
-		// display "START [git clone]" in front-end browser
-
-		channelRet["output"] = "<span class='start-get'>" + i18n.Get(locale, "start-git_clone").(string) + "</span>\n"
-		channelRet["cmd"] = "start-git_clone"
-
-		wsChannel := session.OutputWS[sid]
-
-		err := wsChannel.WriteJSON(&channelRet)
-		if nil != err {
-			logger.Warn(err)
-			return
-		}
-
-		wsChannel.Refresh()
-	}
-
-	reader := bufio.NewReader(io.MultiReader(stdout, stderr))
-
-	if err := cmd.Start(); nil != err {
-		logger.Error(err)
-		result.Succ = false
-
-		return
-	}
-
-	go func(runningId int) {
-		defer util.Recover()
-		defer cmd.Wait()
-
-		logger.Debugf("User [%s, %s] is running [git clone] [runningId=%d]", username, sid, runningId)
-
-		channelRet := map[string]interface{}{}
-		channelRet["cmd"] = "git clone"
-
-		// read all
-		buf, err := ioutil.ReadAll(reader)
-		if nil != err {
-			logger.Warn(err)
-
-			// TODO: handle clone error
-		}
-
-		logger.Debugf("User [%s, %s] 's running [git clone] [runningId=%d] has done: %s", username, sid, runningId, string(buf))
-
-		channelRet["output"] = "<span class='get-succ'>" + i18n.Get(locale, "git_clone-done").(string) + "</span>\n"
-
-		if nil != session.OutputWS[sid] {
-			wsChannel := session.OutputWS[sid]
-
-			err := wsChannel.WriteJSON(&channelRet)
-			if nil != err {
-				logger.Warn(err)
-			}
-
-			wsChannel.Refresh()
-		}
-	}(rand.Int())
-}