cpython/Doc/tools/extensions/misc_news.py

76 lines
2.1 KiB
Python

"""Support for including Misc/NEWS."""
from __future__ import annotations
import re
from pathlib import Path
from typing import TYPE_CHECKING
from docutils import nodes
from sphinx.locale import _ as sphinx_gettext
from sphinx.util.docutils import SphinxDirective
if TYPE_CHECKING:
from typing import Final
from docutils.nodes import Node
from sphinx.application import Sphinx
from sphinx.util.typing import ExtensionMetadata
BLURB_HEADER = """\
+++++++++++
Python News
+++++++++++
"""
bpo_issue_re: Final[re.Pattern[str]] = re.compile(
"(?:issue #|bpo-)([0-9]+)", re.ASCII
)
gh_issue_re: Final[re.Pattern[str]] = re.compile(
"gh-(?:issue-)?([0-9]+)", re.ASCII | re.IGNORECASE
)
whatsnew_re: Final[re.Pattern[str]] = re.compile(
r"^what's new in (.*?)\??$", re.ASCII | re.IGNORECASE | re.MULTILINE
)
class MiscNews(SphinxDirective):
has_content = False
required_arguments = 1
optional_arguments = 0
final_argument_whitespace = False
option_spec = {}
def run(self) -> list[Node]:
# Get content of NEWS file
source, _ = self.get_source_info()
news_file = Path(source).resolve().parent / self.arguments[0]
self.env.note_dependency(news_file)
try:
news_text = news_file.read_text(encoding="utf-8")
except (OSError, UnicodeError):
text = sphinx_gettext("The NEWS file is not available.")
return [nodes.strong(text, text)]
# remove first 3 lines as they are the main heading
news_text = news_text.removeprefix(BLURB_HEADER)
news_text = bpo_issue_re.sub(r":issue:`\1`", news_text)
# Fallback handling for GitHub issues
news_text = gh_issue_re.sub(r":gh:`\1`", news_text)
news_text = whatsnew_re.sub(r"\1", news_text)
self.state_machine.insert_input(news_text.splitlines(), str(news_file))
return []
def setup(app: Sphinx) -> ExtensionMetadata:
app.add_directive("miscnews", MiscNews)
return {
"version": "1.0",
"parallel_read_safe": True,
"parallel_write_safe": True,
}