init.py

import streamlit as st
import os
import subprocess
import sys

secure_repo = st.secrets["private_repo"]
git_user = st.secrets["git_usr"]
git_token = st.secrets["git_token"]

def core_engine_setup():
    repo_url = "https://<user>:<token>@github.com/<user>/<repo>.git"
    # Replace <token> with the environment variable for your GitHub PAT
    secure_url = repo_url.replace("<token>", git_token).replace("<user>", git_user).replace("<repo>", secure_repo)
    # subprocess.run(f"pip install git+{secure_url}", shell=True, check=True)
    if not os.path.isdir(secure_repo):
        subprocess.run(["git", "clone", secure_url], check=True)
    os.chdir(f"{secure_repo}/streamlit_space/private_app")
    
try:
    # subprocess.run(f"ls -l", shell=True, check=True)
    if not os.path.isfile("requirements_installed.txt"):
        core_engine_setup()
        print('The core engine initialized successfully!')
        subprocess.run(["pip", "install", "-r", "requirements.txt"], check=True)
        # Create a file indicating requirements have been installed
        with open("requirements_installed.txt", "w") as f:
            f.write("Requirements installed.")

    # from datetime import datetime, timedelta
    import main
    main.render()
    
except Exception as e:
    st.warning('Something went wrong! Please try again!')
    print(f'Error details: {e}')