add update arg `--update`

# 启动程序

$ python3 launch.py

# 更新程序

python3 launch.py --update

```

第一次运行会自动安装 torch 等依赖项并下载所需模型和文件，如果模型下载失败，需要手动从 [MEGA](https://mega.nz/folder/gmhmACoD#dkVlZ2nphOkU5-2ACb5dKw) 或 [Google Drive](https://drive.google.com/drive/folders/1uElIYRLNakJj-YS0Kd3r3HE-wzeEvrWd?usp=sharing) 下载 data 文件夹(或者报错里提到缺失的文件)，并保存到源码目录下的对应位置。

# Clone this repo

$ git clone https://github.com/dmMaze/BallonsTranslator.git ; cd BallonsTranslator

# Launch the app

# Launch app

$ python3 launch.py

# Update app

$ python3 launch.py --update

```

Note the first time you launch it will install the required libraries and download models automatically. If the downloads fail, you will need to download the **data** folder (or missing files mentioned in the terminal) from [MEGA](https://mega.nz/folder/gmhmACoD#dkVlZ2nphOkU5-2ACb5dKw) or [Google Drive](https://drive.google.com/drive/folders/1uElIYRLNakJj-YS0Kd3r3HE-wzeEvrWd?usp=sharing) and save it to the corresponding path in source code folder.

parser.add_argument("--export-translation-txt", action='store_true', help='save translation to txt file once RUN completed')

parser.add_argument("--export-source-txt", action='store_true', help='save source to txt file once RUN completed')

parser.add_argument("--frozen", action='store_true', help='run without checking requirements')

parser.add_argument("--update", action='store_true', help="Update the repository before launching") # Добавлен аргумент --update

args, _ = parser.parse_known_args()

        return

    index_url_line = f' --index-url {index_url}' if index_url != '' else ''

    return run(f'"{python}" -m pip {args} --prefer-binary{index_url_line} --disable-pip-version-check', desc=f"Installing {desc}", errdesc=f"Couldn't install {desc}", live=True)

    return run(f'"{python}" -m pip {args} --prefer-binary{index_url_line} --disable-pip-version-check --no-warn-script-location', desc=f"Installing {desc}", errdesc=f"Couldn't install {desc}", live=True)

def commit_hash():

def restart():

    global BT

    print('restarting...\n')

    if BT: # Проверка на None перед закрытием

        BT.close()

    os.execv(sys.executable, ['python'] + sys.argv)

    prepare_environment()

    # Проверка обновлений ПЕРЕД инициализацией GUI

    if args.update:

        if getattr(sys, 'frozen', False):

            print('Running as app, skipping update.')

        else:

            print('Checking for updates...')

            try:

                current_commit = commit_hash()

                run(f"{git} fetch origin {BRANCH}", desc="Fetching updates from git...", errdesc="Failed to fetch updates.")

                latest_commit = run(f"{git} rev-parse origin/{BRANCH}").strip()

                if current_commit != latest_commit:

                    print("New updates found. Updating repository...")

                    run(f"{git} pull origin {BRANCH}", desc="Updating repository...", errdesc="Failed to update repository.")

                    print("Repository updated. Restarting to apply updates...")

                    restart()

                    return # Важно выйти после перезапуска, чтобы продолжить уже в новом процессе

                else:

                    print("No updates found.")

            except Exception as e:

                print(f"Update check failed: {e}")

                print("Continuing with the current version.")

    from utils.logger import setup_logging, logger as LOGGER

    import utils.shared as shared

    from utils.io_utils import find_all_files_recursive

    BT = ballontrans

    BT.restart_signal.connect(restart)

    if not args.headless:

        if shared.SCREEN_W > 1707 and sys.platform == 'win32':   # higher than 2560 (1440p) / 1.5

            # https://github.com/dmMaze/BallonsTranslator/issues/220