Source code for airflow.macros
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from __future__ import annotations
import json # noqa: F401
import time # noqa: F401
import uuid # noqa: F401
from datetime import datetime, timedelta
from random import random # noqa: F401
from typing import TYPE_CHECKING, Any
import dateutil # noqa: F401
from babel import Locale
from babel.dates import LC_TIME, format_datetime
import airflow.utils.yaml as yaml # noqa: F401
if TYPE_CHECKING:
from pendulum import DateTime
[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 datetime_diff_for_humans(dt: Any, since: DateTime | None = None) -> str:
"""
Return a human-readable/approximate difference between datetimes.
When only one datetime is provided, the comparison will be based on 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.
"""
import pendulum
return pendulum.instance(dt).diff_for_humans(since)