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 ds_format(ds: str, input_format: str, output_format: str) -> str: """ Output datetime string in a given 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' >>> ds_format("12/07/2024", "%d/%m/%Y", "%A %d %B %Y", "en_US") 'Friday 12 July 2024' """ return datetime.strptime(str(ds), input_format).strftime(output_format)
[docs]def ds_format_locale( ds: str, input_format: str, output_format: str, locale: Locale | str | None = None ) -> str: """ Output localized datetime string in a given Babel 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 Babel format (e.g., `yyyy-MM-dd`). :param locale: Locale used to format the output string (e.g., 'en_US'). If locale not specified, default LC_TIME will be used and if that's also not available, 'en_US' will be used. >>> ds_format("2015-01-01", "%Y-%m-%d", "MM-dd-yy") '01-01-15' >>> ds_format("1/5/2015", "%m/%d/%Y", "yyyy-MM-dd") '2015-01-05' >>> ds_format("12/07/2024", "%d/%m/%Y", "EEEE dd MMMM yyyy", "en_US") 'Friday 12 July 2024' .. versionadded:: 2.10.0 """ return format_datetime( datetime.strptime(str(ds), input_format), format=output_format, locale=locale or LC_TIME or Locale("en_US"), )
[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)

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