deleteFromGoogleDrive.py

from __future__ import print_function
import pickle
import os.path
from googleapiclient.discovery import build
from google_auth_oauthlib.flow import InstalledAppFlow
from google.auth.transport.requests import Request

# If modifying these scopes, delete the file token.pickle.
SCOPES = ['https://www.googleapis.com/auth/drive',
          'https://www.googleapis.com/auth/drive.file',
          'https://www.googleapis.com/auth/drive.readonly',
          'https://www.googleapis.com/auth/drive.metadata.readonly',
          'https://www.googleapis.com/auth/drive.appdata',
          'https://www.googleapis.com/auth/drive.metadata',
          'https://www.googleapis.com/auth/drive.photos.readonly']

def delete_file(request_id, response, exception):
  if exception is not None:
    # Do something with the exception
    pass
  else:
    # Do something with the response
    pass

def main():
    """
    Lists files in Drive
    """
    creds = None
    # The file token.pickle stores the user's access and refresh tokens, and is
    # created automatically when the authorization flow completes for the first
    # time.
    if os.path.exists('token.pickle'):
        with open('token.pickle', 'rb') as token:
            creds = pickle.load(token)
    # If there are no (valid) credentials available, let the user log in.
    if not creds or not creds.valid:
        if creds and creds.expired and creds.refresh_token:
            creds.refresh(Request())
        else:
            flow = InstalledAppFlow.from_client_secrets_file(
                'credentials.json', SCOPES)
            creds = flow.run_local_server(port=0)
        # Save the credentials for the next run
        with open('token.pickle', 'wb') as token:
            pickle.dump(creds, token)

    service = build('drive', 'v3', credentials=creds)

    page_token = None

    count = 0
    # Google API by default limits 1000 queries for every 100s.
    max_pages = 9

    batch = service.new_batch_http_request(callback=delete_file)

    # We could also for loop here.
    while count < max_pages:
        response = service.files().list(q="name contains 'AVIProjectX' and trashed = false",
                                        spaces='drive',
                                        fields='nextPageToken, files(id, name, trashed)',
                                        pageToken=page_token).execute()
        for file in response.get('files', []):
            # Process change
            fileId = file.get('id')
            fileName = file.get('name')
            if fileName.startswith('AVIProjectX') and fileName.endswith('avi'):
                print('Trashing file: %s (%s)' % (fileName, fileId))
                # Move to trash
                body = {'trashed': True}
                batch.add(service.files().update(fileId=fileId, body=body))

                # Delete permanently; Do not move to trash
                #batch.add(service.files().delete(fileId=fileId))

        count = count + 1
        page_token = response.get('nextPageToken', None)
        if count > max_pages:
            break
        if page_token is None:
            break

    print('Executing Batch')
    batch.execute()
    service.close()

if __name__ == '__main__':
    main()