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Posted to commits@airflow.apache.org by GitBox <gi...@apache.org> on 2022/03/21 14:45:29 UTC

[GitHub] [airflow] ulsc commented on a change in pull request #22219: Add `LocalFilesystemToGoogleDriveOperator`

ulsc commented on a change in pull request #22219:
URL: https://github.com/apache/airflow/pull/22219#discussion_r831189822



##########
File path: airflow/providers/google/suite/transfers/local_to_drive.py
##########
@@ -0,0 +1,130 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+"""This file contains Google Drive operators"""
+
+import os
+from pathlib import Path
+from typing import TYPE_CHECKING, List, Optional, Sequence, Union
+
+from airflow.exceptions import AirflowFailException
+from airflow.models import BaseOperator
+from airflow.providers.google.suite.hooks.drive import GoogleDriveHook
+
+if TYPE_CHECKING:
+    from airflow.utils.context import Context
+
+
+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 be deleted after upload (optional)
+
+    .. 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
+    :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, then don't fail even if all files
+        can't be uploaded.
+    :param chunk_size: File will be uploaded in chunks of this many bytes. Only
+        used if resumable=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
+    :return: Remote file ids after upload
+    :rtype: Sequence[str]
+    """
+
+    template_fields = (
+        'local_paths',
+        'drive_folder',
+    )
+
+    def __init__(
+        self,
+        local_paths: Union[Sequence[Path], Sequence[str]],
+        drive_folder: Union[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: Optional[str] = None,
+        impersonation_chain: Optional[Union[str, Sequence[str]]] = None,
+        **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
+
+    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:
+            self.log.info("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,
+                )
+
+                remote_file_ids.append(remote_file_id)
+
+                if self.delete:
+                    os.remove(local_path)
+                    self.log.info("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)

Review comment:
       Raise would fail the dag too early, however the intention was failing after seeing the whole landscape. That's why we logged the problems and raised as a result, if user doesn't want to ignore.




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