jayceslesar commented on code in PR #1958: URL: https://github.com/apache/iceberg-python/pull/1958#discussion_r2160069635
########## pyiceberg/table/maintenance.py: ########## @@ -0,0 +1,117 @@ +# 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. +from __future__ import annotations + +import logging +from datetime import datetime, timedelta, timezone +from functools import reduce +from typing import TYPE_CHECKING, Set + +from pyiceberg.io import _parse_location +from pyiceberg.utils.concurrent import ExecutorFactory + +logger = logging.getLogger(__name__) + + +if TYPE_CHECKING: + from pyiceberg.table import Table + + +class MaintenanceTable: + tbl: Table + + def __init__(self, tbl: Table) -> None: + self.tbl = tbl + + try: + import pyarrow as pa # noqa + except ModuleNotFoundError as e: + raise ModuleNotFoundError("For metadata operations PyArrow needs to be installed") from e + + def _orphaned_files(self, location: str, older_than: timedelta = timedelta(days=3)) -> Set[str]: + """Get all files which are not referenced in any metadata files of an Iceberg table and can thus be considered "orphaned". + + Args: + location: The location to check for orphaned files. + older_than: The time period to check for orphaned files. Defaults to 3 days. + + Returns: + A set of orphaned file paths. + """ + try: + import pyarrow as pa # noqa: F401 + except ModuleNotFoundError as e: + raise ModuleNotFoundError("For deleting orphaned files PyArrow needs to be installed") from e + + from pyarrow.fs import FileSelector, FileType + + from pyiceberg.io.pyarrow import _fs_from_file_path + + all_known_files = self.tbl.inspect._all_known_files() + flat_known_files: set[str] = reduce(set.union, all_known_files.values(), set()) + + fs = _fs_from_file_path(self.tbl.io, location) + + _, _, path = _parse_location(location) + selector = FileSelector(path, recursive=True) + # filter to just files as it may return directories, and filter on time + as_of = datetime.now(timezone.utc) - older_than + all_files = [ + f.path for f in fs.get_file_info(selector) if f.type == FileType.File and (as_of is None or (f.mtime < as_of)) + ] Review Comment: Good catch, cleaner now -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@iceberg.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@iceberg.apache.org For additional commands, e-mail: issues-h...@iceberg.apache.org
