Update app.py

app.py

@@ -2,17 +2,28 @@ import streamlit as st
 import random
 import time
 import git
-import os
+import os, shutil, stat
 from google.api_core.exceptions import InternalServerError
 
 flag = False
 repo = st.text_input(label="Paste the .git link of repository.")
 btn = st.button(label="Submit")
 
+def rm_dir_readonly(func, path, _):
+    os.chmod(path, stat.S_IWRITE)
+    func(path)
+
+
 def clone_repo(repo):
     if os.path.exists("githubCode") and os.path.isdir("githubCode"):
         print("File already exists!!")
-        pass
+        shutil.rmtree('githubCode', onerror=rm_dir_readonly)
+        print("cleaning and cloning repo")
+        git.Repo.clone_from(repo,"githubCode")
+
+        with open("Code.txt", "r+", encoding="utf-8") as output:
+            output.truncate(0)    
+            output.seek(0)
     else:
         print("Cloning repo!!")
         git.Repo.clone_from(repo,"githubCode")