Source code for airflow.macros

# 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
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.
from __future__ import annotations

import time  # noqa
import uuid  # noqa
from datetime import datetime, timedelta
from random import random  # noqa
from typing import Any

import dateutil  # noqa
from pendulum import DateTime

from airflow.macros import hive  # noqa

[docs]def ds_add(ds: str, days: int) -> str: """ Add or subtract days from a YYYY-MM-DD :param ds: anchor date in ``YYYY-MM-DD`` format to add to :param days: number of days to add to the ds, you can use negative values >>> ds_add('2015-01-01', 5) '2015-01-06' >>> ds_add('2015-01-06', -5) '2015-01-01' """ if not days: return str(ds) dt = datetime.strptime(str(ds), "%Y-%m-%d") + timedelta(days=days) return dt.strftime("%Y-%m-%d")
[docs]def ds_format(ds: str, input_format: str, output_format: str) -> str: """ Takes an input string and outputs another string as specified in the output format :param ds: input string which contains a date :param input_format: input string format. E.g. %Y-%m-%d :param output_format: output string format E.g. %Y-%m-%d >>> ds_format('2015-01-01', "%Y-%m-%d", "%m-%d-%y") '01-01-15' >>> ds_format('1/5/2015', "%m/%d/%Y", "%Y-%m-%d") '2015-01-05' """ return datetime.strptime(str(ds), input_format).strftime(output_format)
[docs]def datetime_diff_for_humans(dt: Any, since: DateTime | None = None) -> str: """ Return a human-readable/approximate difference between two datetimes, or one and now. :param dt: The datetime to display the diff for :param since: When to display the date from. If ``None`` then the diff is between ``dt`` and now. :rtype: str """ import pendulum return pendulum.instance(dt).diff_for_humans(since)

Was this entry helpful?