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"""This file contains Google Drive operators."""
from __future__ import annotations

import os
from pathlib import Path
from typing import TYPE_CHECKING, Sequence

from airflow.exceptions import AirflowFailException
from airflow.models import BaseOperator
from import GoogleDriveHook

    from airflow.utils.context import Context

[docs]class LocalFilesystemToGoogleDriveOperator(BaseOperator): """Upload a list of files to a Google Drive folder. This operator uploads a list of local files to a Google Drive folder. The local files can optionally be deleted after upload. .. seealso:: For more information on how to use this operator, take a look at the guide: :ref:`howto/operator:LocalFilesystemToGoogleDriveOperator` :param local_paths: Python list of local file paths :param drive_folder: path of the Drive folder, if *folder_id* is given, *drive_folder* is a sub path of the folder. :param gcp_conn_id: Airflow Connection ID for GCP. :param delete: Should the local files be deleted after upload? :param ignore_if_missing: If *True*, don't fail even if some files can't be uploaded. :param chunk_size: File will be uploaded in chunks of this many bytes. Only used when *resumable* is set to *True*. Pass in a value of -1 if the file is to be uploaded as a single chunk. Note that Google App Engine has a 5MB limit on request size, so you should never set your chunk size larger than 5MB, or to -1. :param resumable: True if this is a resumable upload. False means upload in a single request. :param delegate_to: The account to impersonate using domain-wide delegation of authority, if any. For this to work, the service account making the request must have domain-wide delegation enabled. :param impersonation_chain: Optional service account to impersonate using short-term credentials, or chained list of accounts required to get the access token of the last account in the list, which will be impersonated in the request. If set as a string, the account must grant the originating account the Service Account Token Creator IAM role. If set as a sequence, the identities from the list must grant Service Account Token Creator IAM role to the directly preceding identity, with first account from the list granting this role to the originating account :param folder_id: The base/root folder id for each local path in the Drive folder. :param show_full_target_path: If true then it reveals full available file path in the logs. :return: Remote file ids after upload. """
[docs] template_fields = ( "local_paths", "drive_folder", )
def __init__( self, local_paths: Sequence[Path] | Sequence[str], drive_folder: Path | str, gcp_conn_id: str = "google_cloud_default", delete: bool = False, ignore_if_missing: bool = False, chunk_size: int = 100 * 1024 * 1024, resumable: bool = False, delegate_to: str | None = None, impersonation_chain: str | Sequence[str] | None = None, folder_id: str = "root", show_full_target_path: bool = True, **kwargs, ) -> None: super().__init__(**kwargs) self.local_paths = local_paths self.drive_folder = drive_folder self.gcp_conn_id = gcp_conn_id self.delete = delete self.ignore_if_missing = ignore_if_missing self.chunk_size = chunk_size self.resumable = resumable self.delegate_to = delegate_to self.impersonation_chain = impersonation_chain self.folder_id = folder_id self.show_full_target_path = show_full_target_path
[docs] def execute(self, context: Context) -> list[str]: hook = GoogleDriveHook( gcp_conn_id=self.gcp_conn_id, delegate_to=self.delegate_to, impersonation_chain=self.impersonation_chain, ) remote_file_ids = [] for local_path in self.local_paths:"Uploading file to Google Drive: %s", local_path) try: remote_file_id = hook.upload_file( local_location=str(local_path), remote_location=str(Path(self.drive_folder) / Path(local_path).name), chunk_size=self.chunk_size, resumable=self.resumable, folder_id=self.folder_id, show_full_target_path=self.show_full_target_path, ) remote_file_ids.append(remote_file_id) if self.delete: os.remove(local_path)"Deleted local file: %s", local_path) except FileNotFoundError: self.log.warning("File can't be found: %s", local_path) except OSError: self.log.warning("An OSError occurred for file: %s", local_path) if not self.ignore_if_missing and len(remote_file_ids) < len(self.local_paths): raise AirflowFailException("Some files couldn't be uploaded") return remote_file_ids

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