Python script to clone a specific user's repos

clone.py

from github import Github  # pip install PyGithub
import os
import argparse


def main():
    parser = argparse.ArgumentParser(description='Clone Github Repositories')
    parser.add_argument('-u', '--username', dest='github_username', required=True, help='Enter a Github username')
    parser.add_argument('-f', '--folder', dest='folder_name', default='', help='Enter a folder to store repositories')

    # Parse the command-line arguments
    args = parser.parse_args()

    # Access the values using the arguments' attributes
    username = args.github_username
    clone_directory = args.folder_name if args.folder_name else username

    # Authenticate with the GitHub API using a personal access token
    # You can generate a personal access token with the "repo" scope at https://github.com/settings/tokens
    access_token = os.environ.get('GITHUB_ACCESS_TOKEN')

    if not access_token:
        print('Github access token is not set')
        return None
    
    g = Github(access_token)

    # Get the user object
    user = g.get_user(username)
    total_repos = user.get_repos().totalCount

    # Iterate through each repository owned by the user and clone it
    count = 1
    for repo in user.get_repos():
        print(f'Repo {count} / {total_repos}') 
        count += 1
        repo_directory = os.path.join(clone_directory, repo.name)

        if os.path.exists(repo_directory):
            # If the repository directory already exists, pull the latest code
            print(f"Pulling latest code for {repo.name}")
            try:
                os.system(f"cd {repo_directory} && git pull")
                # to pull all branches from origin
                #os.system(f"cd {repo_directory} && git pull --all")
            except Exception as error:
                print(
                    f"Error while trying to pull lastest code from user: {username} - repo: {repo.name} - Error: {error}"
                )

        else:
            # If the repository directory doesn't exist, clone the repository
            print(f"Cloning {repo.name}")
            os.system(f"git clone {repo.clone_url} {repo_directory}")


if __name__ == '__main__':
    main()