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https://github.com/python-telegram-bot/python-telegram-bot.git
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100 lines
3.9 KiB
Python
100 lines
3.9 KiB
Python
#
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# A library that provides a Python interface to the Telegram Bot API
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# Copyright (C) 2015-2024
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# Leandro Toledo de Souza <devs@python-telegram-bot.org>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser Public License for more details.
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#
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# You should have received a copy of the GNU Lesser Public License
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# along with this program. If not, see [http://www.gnu.org/licenses/].
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import datetime
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from enum import Enum
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from docutils.nodes import Element
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from sphinx.domains.python import PyXRefRole
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from sphinx.environment import BuildEnvironment
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from sphinx.util import logging
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import telegram
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# get the sphinx(!) logger
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# Makes sure logs render in red and also plays nicely with e.g. the `nitpicky` option.
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sphinx_logger = logging.getLogger(__name__)
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CONSTANTS_ROLE = "tg-const"
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class TGConstXRefRole(PyXRefRole):
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"""This is a bit of Sphinx magic. We add a new role type called tg-const that allows us to
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reference values from the `telegram.constants.module` while using the actual value as title
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of the link.
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Example:
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:tg-const:`telegram.constants.MessageLimit.MAX_TEXT_LENGTH` renders as `4096` but links to
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the constant.
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"""
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def process_link(
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self,
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env: BuildEnvironment,
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refnode: Element,
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has_explicit_title: bool,
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title: str,
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target: str,
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) -> tuple[str, str]:
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title, target = super().process_link(env, refnode, has_explicit_title, title, target)
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try:
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# We use `eval` to get the value of the expression. Maybe there are better ways to
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# do this via importlib or so, but it does the job for now
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value = eval(target)
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# Maybe we need a better check if the target is actually from tg.constants
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# for now checking if it's an Enum suffices since those are used nowhere else in PTB
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if isinstance(value, Enum):
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# Special casing for file size limits
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if isinstance(value, telegram.constants.FileSizeLimit):
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return f"{int(value.value / 1e6)} MB", target
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return repr(value.value), target
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# Just for (Bot API) versions number auto add in constants:
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if isinstance(value, str) and target in (
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"telegram.constants.BOT_API_VERSION",
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"telegram.__version__",
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):
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return value, target
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if isinstance(value, tuple) and target in (
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"telegram.constants.BOT_API_VERSION_INFO",
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"telegram.__version_info__",
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):
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return str(value), target
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if (
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isinstance(value, datetime.datetime)
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and value == telegram.constants.ZERO_DATE
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and target in ("telegram.constants.ZERO_DATE",)
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):
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return repr(value), target
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sphinx_logger.warning(
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"%s:%d: WARNING: Did not convert reference %s. :%s: is not supposed"
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" to be used with this type of target.",
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refnode.source,
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refnode.line,
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refnode.rawsource,
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CONSTANTS_ROLE,
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)
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return title, target
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except Exception as exc:
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sphinx_logger.exception(
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"%s:%d: WARNING: Did not convert reference %s due to an exception.",
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refnode.source,
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refnode.line,
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refnode.rawsource,
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exc_info=exc,
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)
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return title, target
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