src/google_drive.py

from googleapiclient.discovery import build
from googleapiclient.http import MediaFileUpload
from google.oauth2 import service_account
import json
import os

def upload_to_drive(local_path, filename):
    creds_dict = json.loads(os.environ["GOOGLE_CREDS_JSON"])
    creds = service_account.Credentials.from_service_account_info(creds_dict)
    service = build("drive", "v3", credentials=creds)

    file_metadata = {
        "name": filename,
        # "parents": ["your-folder-id"]  # optional: target folder
    }
    media = MediaFileUpload(local_path, mimetype="application/zip")
    uploaded_file = service.files().create(
        body=file_metadata,
        media_body=media,
        fields="id"
    ).execute()

    return uploaded_file.get("id")