Generates a bash script to recursively download a Google Drive folder

make_recursive_gdrive_download.py

#!/usr/bin/python3
# Generates a bash script to recursively download a Google Drive folder
# Original: https://gist.github.com/immuntasir/73b8e8eef7e6c9066aaf2432bebf7db0

import sys

from pydrive.auth import GoogleAuth
from pydrive.drive import GoogleDrive


# A browser window will open. login using the appropriate account.
def authenticate_gdrive():
    gauth = GoogleAuth()
    gauth.DEFAULT_SETTINGS.update(
        save_credentials=True,
        save_credentials_backend='file',
        save_credentials_file='credentials.json',
        get_refresh_token=True)
    gauth.LoadCredentials()
    if gauth.credentials is None:
        gauth.LocalWebserverAuth()
    elif gauth.access_token_expired:
        gauth.Refresh()
    else:
        gauth.Authorize()
    return GoogleDrive(gauth)


# Recursively build the list of files and directories
def build_filelist(drive):
    file_dict = {}
    item_queue = [(parent_id, parent_dir)]
    while len(item_queue) > 0:
        current_id, current_dir = item_queue.pop(0)
        print(current_id, '==>', current_dir)
        for item in drive.ListFile(
            {'q': "'{}' in parents and trashed=false".format(current_id)}
        ).GetList():
            if item['mimeType'] == 'application/vnd.google-apps.folder':
                file_dict[item['id']] = {
                    'title': item['title'], 'type': 'folder',
                    'path': current_dir + item['title'] + '/'}
                item_queue.append((item['id'], file_dict[item['id']]['path']))
            else:
                file_dict[item['id']] = {
                    'title': item['title'], 'type': 'file',
                    'path': current_dir + item['title']}
    return file_dict


# Write the bash script
def build_downloadscript(file_dict):
    with open('download_script.sh', 'w') as f:
        f.write('#!/bin/bash\n')
        for id in file_dict.keys():
            if file_dict[id]['type'] == 'folder':
                f.write('mkdir -p ' + file_dict[id]['path'] + '\n')
            else:
                f.write(wget_text.replace('FILE_ID', id).replace(
                    'FILE_NAME', file_dict[id]['path']) + '\n')
        print('Download script saved to:', f.name)


if __name__ == '__main__':
    parent_id = sys.argv[1] if len(sys.argv) >= 2 else input(
        'Enter Google Drive folder ID to download: ')
    parent_dir = sys.argv[2] if len(sys.argv) >= 3 else input(
        'Enter destination directory for download: ')
    parent_dir += '/' if not parent_dir.endswith('/') else ''
    wget_text = (
        'conf="$(wget --quiet --save-cookies /tmp/cookies.txt '
        '--keep-session-cookies --no-check-certificate '
        '"https://docs.google.com/uc?export=download&id=FILE_ID" -O- | '
        'sed -rn \'s/.*confirm=([0-9A-Za-z_]+).*/\\1\\n/p\')" &&\n'
        '    wget --load-cookies /tmp/cookies.txt '
        '"https://docs.google.com/uc?export=download&confirm=$conf&id=FILE_ID"'
        ' -O "FILE_NAME" && rm -f /tmp/cookies.txt')
    build_downloadscript(build_filelist(authenticate_gdrive()))

Note that you'll need an OAuth API Token as shown here: https://pythonhosted.org/PyDrive/quickstart.html