mirror of https://github.com/python/cpython
695 lines
24 KiB
Python
695 lines
24 KiB
Python
# -*- coding: utf-8 -*-
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"""
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pyspecific.py
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~~~~~~~~~~~~~
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Sphinx extension with Python doc-specific markup.
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:copyright: 2008-2014 by Georg Brandl.
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:license: Python license.
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"""
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import re
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import io
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from os import getenv, path
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from time import asctime
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from pprint import pformat
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import sphinx
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from docutils import nodes
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from docutils.io import StringOutput
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from docutils.utils import new_document, unescape
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from sphinx import addnodes
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from sphinx.builders import Builder
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from sphinx.domains.changeset import VersionChange, versionlabels, versionlabel_classes
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from sphinx.domains.python import PyFunction, PyMethod
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from sphinx.errors import NoUri
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from sphinx.locale import _ as sphinx_gettext
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from sphinx.util import logging
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from sphinx.util.docutils import SphinxDirective
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from sphinx.writers.text import TextWriter, TextTranslator
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from sphinx.util.display import status_iterator
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ISSUE_URI = 'https://bugs.python.org/issue?@action=redirect&bpo=%s'
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GH_ISSUE_URI = 'https://github.com/python/cpython/issues/%s'
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# Used in conf.py and updated here by python/release-tools/run_release.py
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SOURCE_URI = 'https://github.com/python/cpython/tree/main/%s'
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# monkey-patch reST parser to disable alphabetic and roman enumerated lists
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from docutils.parsers.rst.states import Body
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Body.enum.converters['loweralpha'] = \
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Body.enum.converters['upperalpha'] = \
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Body.enum.converters['lowerroman'] = \
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Body.enum.converters['upperroman'] = lambda x: None
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# monkey-patch the productionlist directive to allow hyphens in group names
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# https://github.com/sphinx-doc/sphinx/issues/11854
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from sphinx.domains import std
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std.token_re = re.compile(r'`((~?[\w-]*:)?\w+)`')
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# Support for marking up and linking to bugs.python.org issues
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def issue_role(typ, rawtext, text, lineno, inliner, options={}, content=[]):
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issue = unescape(text)
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# sanity check: there are no bpo issues within these two values
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if 47261 < int(issue) < 400000:
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msg = inliner.reporter.error(f'The BPO ID {text!r} seems too high -- '
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'use :gh:`...` for GitHub IDs', line=lineno)
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prb = inliner.problematic(rawtext, rawtext, msg)
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return [prb], [msg]
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text = 'bpo-' + issue
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refnode = nodes.reference(text, text, refuri=ISSUE_URI % issue)
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return [refnode], []
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# Support for marking up and linking to GitHub issues
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def gh_issue_role(typ, rawtext, text, lineno, inliner, options={}, content=[]):
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issue = unescape(text)
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# sanity check: all GitHub issues have ID >= 32426
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# even though some of them are also valid BPO IDs
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if int(issue) < 32426:
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msg = inliner.reporter.error(f'The GitHub ID {text!r} seems too low -- '
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'use :issue:`...` for BPO IDs', line=lineno)
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prb = inliner.problematic(rawtext, rawtext, msg)
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return [prb], [msg]
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text = 'gh-' + issue
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refnode = nodes.reference(text, text, refuri=GH_ISSUE_URI % issue)
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return [refnode], []
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# Support for marking up implementation details
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class ImplementationDetail(SphinxDirective):
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has_content = True
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final_argument_whitespace = True
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# This text is copied to templates/dummy.html
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label_text = sphinx_gettext('CPython implementation detail:')
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def run(self):
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self.assert_has_content()
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pnode = nodes.compound(classes=['impl-detail'])
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content = self.content
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add_text = nodes.strong(self.label_text, self.label_text)
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self.state.nested_parse(content, self.content_offset, pnode)
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content = nodes.inline(pnode[0].rawsource, translatable=True)
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content.source = pnode[0].source
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content.line = pnode[0].line
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content += pnode[0].children
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pnode[0].replace_self(nodes.paragraph(
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'', '', add_text, nodes.Text(' '), content, translatable=False))
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return [pnode]
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# Support for documenting platform availability
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class Availability(SphinxDirective):
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has_content = True
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required_arguments = 1
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optional_arguments = 0
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final_argument_whitespace = True
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# known platform, libc, and threading implementations
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known_platforms = frozenset({
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"AIX", "Android", "BSD", "DragonFlyBSD", "Emscripten", "FreeBSD",
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"GNU/kFreeBSD", "Linux", "NetBSD", "OpenBSD", "POSIX", "Solaris",
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"Unix", "VxWorks", "WASI", "Windows", "macOS", "iOS",
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# libc
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"BSD libc", "glibc", "musl",
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# POSIX platforms with pthreads
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"pthreads",
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})
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def run(self):
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availability_ref = ':ref:`Availability <availability>`: '
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avail_nodes, avail_msgs = self.state.inline_text(
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availability_ref + self.arguments[0],
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self.lineno)
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pnode = nodes.paragraph(availability_ref + self.arguments[0],
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'', *avail_nodes, *avail_msgs)
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self.set_source_info(pnode)
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cnode = nodes.container("", pnode, classes=["availability"])
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self.set_source_info(cnode)
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if self.content:
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self.state.nested_parse(self.content, self.content_offset, cnode)
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self.parse_platforms()
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return [cnode]
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def parse_platforms(self):
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"""Parse platform information from arguments
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Arguments is a comma-separated string of platforms. A platform may
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be prefixed with "not " to indicate that a feature is not available.
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Example::
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.. availability:: Windows, Linux >= 4.2, not WASI
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Arguments like "Linux >= 3.17 with glibc >= 2.27" are currently not
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parsed into separate tokens.
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"""
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platforms = {}
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for arg in self.arguments[0].rstrip(".").split(","):
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arg = arg.strip()
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platform, _, version = arg.partition(" >= ")
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if platform.startswith("not "):
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version = False
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platform = platform[4:]
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elif not version:
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version = True
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platforms[platform] = version
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unknown = set(platforms).difference(self.known_platforms)
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if unknown:
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cls = type(self)
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logger = logging.getLogger(cls.__qualname__)
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logger.warning(
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f"Unknown platform(s) or syntax '{' '.join(sorted(unknown))}' "
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f"in '.. availability:: {self.arguments[0]}', see "
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f"{__file__}:{cls.__qualname__}.known_platforms for a set "
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"known platforms."
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)
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return platforms
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# Support for documenting audit event
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def audit_events_purge(app, env, docname):
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"""This is to remove from env.all_audit_events old traces of removed
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documents.
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"""
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if not hasattr(env, 'all_audit_events'):
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return
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fresh_all_audit_events = {}
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for name, event in env.all_audit_events.items():
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event["source"] = [(d, t) for d, t in event["source"] if d != docname]
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if event["source"]:
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# Only keep audit_events that have at least one source.
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fresh_all_audit_events[name] = event
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env.all_audit_events = fresh_all_audit_events
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def audit_events_merge(app, env, docnames, other):
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"""In Sphinx parallel builds, this merges env.all_audit_events from
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subprocesses.
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all_audit_events is a dict of names, with values like:
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{'source': [(docname, target), ...], 'args': args}
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"""
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if not hasattr(other, 'all_audit_events'):
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return
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if not hasattr(env, 'all_audit_events'):
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env.all_audit_events = {}
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for name, value in other.all_audit_events.items():
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if name in env.all_audit_events:
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env.all_audit_events[name]["source"].extend(value["source"])
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else:
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env.all_audit_events[name] = value
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class AuditEvent(SphinxDirective):
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has_content = True
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required_arguments = 1
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optional_arguments = 2
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final_argument_whitespace = True
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_label = [
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sphinx_gettext("Raises an :ref:`auditing event <auditing>` {name} with no arguments."),
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sphinx_gettext("Raises an :ref:`auditing event <auditing>` {name} with argument {args}."),
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sphinx_gettext("Raises an :ref:`auditing event <auditing>` {name} with arguments {args}."),
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]
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@property
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def logger(self):
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cls = type(self)
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return logging.getLogger(cls.__module__ + "." + cls.__name__)
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def run(self):
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name = self.arguments[0]
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if len(self.arguments) >= 2 and self.arguments[1]:
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args = (a.strip() for a in self.arguments[1].strip("'\"").split(","))
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args = [a for a in args if a]
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else:
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args = []
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label = self._label[min(2, len(args))]
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text = label.format(name="``{}``".format(name),
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args=", ".join("``{}``".format(a) for a in args if a))
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if not hasattr(self.env, 'all_audit_events'):
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self.env.all_audit_events = {}
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new_info = {
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'source': [],
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'args': args
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}
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info = self.env.all_audit_events.setdefault(name, new_info)
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if info is not new_info:
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if not self._do_args_match(info['args'], new_info['args']):
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self.logger.warning(
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"Mismatched arguments for audit-event {}: {!r} != {!r}"
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.format(name, info['args'], new_info['args'])
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)
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ids = []
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try:
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target = self.arguments[2].strip("\"'")
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except (IndexError, TypeError):
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target = None
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if not target:
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target = "audit_event_{}_{}".format(
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re.sub(r'\W', '_', name),
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len(info['source']),
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)
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ids.append(target)
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info['source'].append((self.env.docname, target))
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pnode = nodes.paragraph(text, classes=["audit-hook"], ids=ids)
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pnode.line = self.lineno
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if self.content:
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self.state.nested_parse(self.content, self.content_offset, pnode)
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else:
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n, m = self.state.inline_text(text, self.lineno)
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pnode.extend(n + m)
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return [pnode]
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# This list of sets are allowable synonyms for event argument names.
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# If two names are in the same set, they are treated as equal for the
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# purposes of warning. This won't help if number of arguments is
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# different!
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_SYNONYMS = [
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{"file", "path", "fd"},
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]
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def _do_args_match(self, args1, args2):
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if args1 == args2:
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return True
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if len(args1) != len(args2):
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return False
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for a1, a2 in zip(args1, args2):
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if a1 == a2:
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continue
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if any(a1 in s and a2 in s for s in self._SYNONYMS):
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continue
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return False
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return True
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class audit_event_list(nodes.General, nodes.Element):
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pass
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class AuditEventListDirective(SphinxDirective):
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def run(self):
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return [audit_event_list('')]
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# Support for documenting decorators
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class PyDecoratorMixin(object):
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def handle_signature(self, sig, signode):
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ret = super(PyDecoratorMixin, self).handle_signature(sig, signode)
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signode.insert(0, addnodes.desc_addname('@', '@'))
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return ret
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def needs_arglist(self):
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return False
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class PyDecoratorFunction(PyDecoratorMixin, PyFunction):
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def run(self):
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# a decorator function is a function after all
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self.name = 'py:function'
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return PyFunction.run(self)
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# TODO: Use sphinx.domains.python.PyDecoratorMethod when possible
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class PyDecoratorMethod(PyDecoratorMixin, PyMethod):
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def run(self):
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self.name = 'py:method'
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return PyMethod.run(self)
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class PyCoroutineMixin(object):
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def handle_signature(self, sig, signode):
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ret = super(PyCoroutineMixin, self).handle_signature(sig, signode)
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signode.insert(0, addnodes.desc_annotation('coroutine ', 'coroutine '))
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return ret
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class PyAwaitableMixin(object):
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def handle_signature(self, sig, signode):
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ret = super(PyAwaitableMixin, self).handle_signature(sig, signode)
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signode.insert(0, addnodes.desc_annotation('awaitable ', 'awaitable '))
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return ret
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class PyCoroutineFunction(PyCoroutineMixin, PyFunction):
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def run(self):
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self.name = 'py:function'
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return PyFunction.run(self)
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class PyCoroutineMethod(PyCoroutineMixin, PyMethod):
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def run(self):
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self.name = 'py:method'
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return PyMethod.run(self)
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class PyAwaitableFunction(PyAwaitableMixin, PyFunction):
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def run(self):
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self.name = 'py:function'
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return PyFunction.run(self)
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class PyAwaitableMethod(PyAwaitableMixin, PyMethod):
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def run(self):
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self.name = 'py:method'
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return PyMethod.run(self)
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class PyAbstractMethod(PyMethod):
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def handle_signature(self, sig, signode):
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ret = super(PyAbstractMethod, self).handle_signature(sig, signode)
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signode.insert(0, addnodes.desc_annotation('abstractmethod ',
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'abstractmethod '))
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return ret
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def run(self):
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self.name = 'py:method'
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return PyMethod.run(self)
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# Support for documenting version of removal in deprecations
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class DeprecatedRemoved(VersionChange):
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required_arguments = 2
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_deprecated_label = sphinx_gettext('Deprecated since version %s, will be removed in version %s')
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_removed_label = sphinx_gettext('Deprecated since version %s, removed in version %s')
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def run(self):
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# Replace the first two arguments (deprecated version and removed version)
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# with a single tuple of both versions.
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version_deprecated = self.arguments[0]
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version_removed = self.arguments.pop(1)
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self.arguments[0] = version_deprecated, version_removed
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# Set the label based on if we have reached the removal version
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current_version = tuple(map(int, self.config.version.split('.')))
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removed_version = tuple(map(int, version_removed.split('.')))
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if current_version < removed_version:
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versionlabels[self.name] = self._deprecated_label
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versionlabel_classes[self.name] = 'deprecated'
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else:
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versionlabels[self.name] = self._removed_label
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versionlabel_classes[self.name] = 'removed'
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try:
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return super().run()
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finally:
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# reset versionlabels and versionlabel_classes
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versionlabels[self.name] = ''
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versionlabel_classes[self.name] = ''
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# Support for including Misc/NEWS
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issue_re = re.compile('(?:[Ii]ssue #|bpo-)([0-9]+)', re.I)
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gh_issue_re = re.compile('(?:gh-issue-|gh-)([0-9]+)', re.I)
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whatsnew_re = re.compile(r"(?im)^what's new in (.*?)\??$")
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class MiscNews(SphinxDirective):
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has_content = False
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required_arguments = 1
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optional_arguments = 0
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final_argument_whitespace = False
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option_spec = {}
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def run(self):
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fname = self.arguments[0]
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source = self.state_machine.input_lines.source(
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self.lineno - self.state_machine.input_offset - 1)
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source_dir = getenv('PY_MISC_NEWS_DIR')
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if not source_dir:
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source_dir = path.dirname(path.abspath(source))
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fpath = path.join(source_dir, fname)
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self.env.note_dependency(path.abspath(fpath))
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try:
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with io.open(fpath, encoding='utf-8') as fp:
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content = fp.read()
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except Exception:
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text = 'The NEWS file is not available.'
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node = nodes.strong(text, text)
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return [node]
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content = issue_re.sub(r':issue:`\1`', content)
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# Fallback handling for the GitHub issue
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content = gh_issue_re.sub(r':gh:`\1`', content)
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content = whatsnew_re.sub(r'\1', content)
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# remove first 3 lines as they are the main heading
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lines = ['.. default-role:: obj', ''] + content.splitlines()[3:]
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self.state_machine.insert_input(lines, fname)
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return []
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# Support for building "topic help" for pydoc
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pydoc_topic_labels = [
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'assert', 'assignment', 'async', 'atom-identifiers', 'atom-literals',
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'attribute-access', 'attribute-references', 'augassign', 'await',
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'binary', 'bitwise', 'bltin-code-objects', 'bltin-ellipsis-object',
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'bltin-null-object', 'bltin-type-objects', 'booleans',
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'break', 'callable-types', 'calls', 'class', 'comparisons', 'compound',
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'context-managers', 'continue', 'conversions', 'customization', 'debugger',
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'del', 'dict', 'dynamic-features', 'else', 'exceptions', 'execmodel',
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'exprlists', 'floating', 'for', 'formatstrings', 'function', 'global',
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'id-classes', 'identifiers', 'if', 'imaginary', 'import', 'in', 'integers',
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'lambda', 'lists', 'naming', 'nonlocal', 'numbers', 'numeric-types',
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'objects', 'operator-summary', 'pass', 'power', 'raise', 'return',
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'sequence-types', 'shifting', 'slicings', 'specialattrs', 'specialnames',
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'string-methods', 'strings', 'subscriptions', 'truth', 'try', 'types',
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'typesfunctions', 'typesmapping', 'typesmethods', 'typesmodules',
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'typesseq', 'typesseq-mutable', 'unary', 'while', 'with', 'yield'
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]
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class PydocTopicsBuilder(Builder):
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name = 'pydoc-topics'
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default_translator_class = TextTranslator
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def init(self):
|
|
self.topics = {}
|
|
self.secnumbers = {}
|
|
|
|
def get_outdated_docs(self):
|
|
return 'all pydoc topics'
|
|
|
|
def get_target_uri(self, docname, typ=None):
|
|
return '' # no URIs
|
|
|
|
def write(self, *ignored):
|
|
writer = TextWriter(self)
|
|
for label in status_iterator(pydoc_topic_labels,
|
|
'building topics... ',
|
|
length=len(pydoc_topic_labels)):
|
|
if label not in self.env.domaindata['std']['labels']:
|
|
self.env.logger.warning(f'label {label!r} not in documentation')
|
|
continue
|
|
docname, labelid, sectname = self.env.domaindata['std']['labels'][label]
|
|
doctree = self.env.get_and_resolve_doctree(docname, self)
|
|
document = new_document('<section node>')
|
|
document.append(doctree.ids[labelid])
|
|
destination = StringOutput(encoding='utf-8')
|
|
writer.write(document, destination)
|
|
self.topics[label] = writer.output
|
|
|
|
def finish(self):
|
|
f = open(path.join(self.outdir, 'topics.py'), 'wb')
|
|
try:
|
|
f.write('# -*- coding: utf-8 -*-\n'.encode('utf-8'))
|
|
f.write(('# Autogenerated by Sphinx on %s\n' % asctime()).encode('utf-8'))
|
|
f.write('# as part of the release process.\n'.encode('utf-8'))
|
|
f.write(('topics = ' + pformat(self.topics) + '\n').encode('utf-8'))
|
|
finally:
|
|
f.close()
|
|
|
|
|
|
# Support for documenting Opcodes
|
|
|
|
opcode_sig_re = re.compile(r'(\w+(?:\+\d)?)(?:\s*\((.*)\))?')
|
|
|
|
|
|
def parse_opcode_signature(env, sig, signode):
|
|
"""Transform an opcode signature into RST nodes."""
|
|
m = opcode_sig_re.match(sig)
|
|
if m is None:
|
|
raise ValueError
|
|
opname, arglist = m.groups()
|
|
signode += addnodes.desc_name(opname, opname)
|
|
if arglist is not None:
|
|
paramlist = addnodes.desc_parameterlist()
|
|
signode += paramlist
|
|
paramlist += addnodes.desc_parameter(arglist, arglist)
|
|
return opname.strip()
|
|
|
|
|
|
# Support for documenting pdb commands
|
|
|
|
pdbcmd_sig_re = re.compile(r'([a-z()!]+)\s*(.*)')
|
|
|
|
# later...
|
|
# pdbargs_tokens_re = re.compile(r'''[a-zA-Z]+ | # identifiers
|
|
# [.,:]+ | # punctuation
|
|
# [\[\]()] | # parens
|
|
# \s+ # whitespace
|
|
# ''', re.X)
|
|
|
|
|
|
def parse_pdb_command(env, sig, signode):
|
|
"""Transform a pdb command signature into RST nodes."""
|
|
m = pdbcmd_sig_re.match(sig)
|
|
if m is None:
|
|
raise ValueError
|
|
name, args = m.groups()
|
|
fullname = name.replace('(', '').replace(')', '')
|
|
signode += addnodes.desc_name(name, name)
|
|
if args:
|
|
signode += addnodes.desc_addname(' '+args, ' '+args)
|
|
return fullname
|
|
|
|
|
|
def parse_monitoring_event(env, sig, signode):
|
|
"""Transform a monitoring event signature into RST nodes."""
|
|
signode += addnodes.desc_addname('sys.monitoring.events.', 'sys.monitoring.events.')
|
|
signode += addnodes.desc_name(sig, sig)
|
|
return sig
|
|
|
|
|
|
def process_audit_events(app, doctree, fromdocname):
|
|
for node in doctree.findall(audit_event_list):
|
|
break
|
|
else:
|
|
return
|
|
|
|
env = app.builder.env
|
|
|
|
table = nodes.table(cols=3)
|
|
group = nodes.tgroup(
|
|
'',
|
|
nodes.colspec(colwidth=30),
|
|
nodes.colspec(colwidth=55),
|
|
nodes.colspec(colwidth=15),
|
|
cols=3,
|
|
)
|
|
head = nodes.thead()
|
|
body = nodes.tbody()
|
|
|
|
table += group
|
|
group += head
|
|
group += body
|
|
|
|
row = nodes.row()
|
|
row += nodes.entry('', nodes.paragraph('', nodes.Text('Audit event')))
|
|
row += nodes.entry('', nodes.paragraph('', nodes.Text('Arguments')))
|
|
row += nodes.entry('', nodes.paragraph('', nodes.Text('References')))
|
|
head += row
|
|
|
|
for name in sorted(getattr(env, "all_audit_events", ())):
|
|
audit_event = env.all_audit_events[name]
|
|
|
|
row = nodes.row()
|
|
node = nodes.paragraph('', nodes.Text(name))
|
|
row += nodes.entry('', node)
|
|
|
|
node = nodes.paragraph()
|
|
for i, a in enumerate(audit_event['args']):
|
|
if i:
|
|
node += nodes.Text(", ")
|
|
node += nodes.literal(a, nodes.Text(a))
|
|
row += nodes.entry('', node)
|
|
|
|
node = nodes.paragraph()
|
|
backlinks = enumerate(sorted(set(audit_event['source'])), start=1)
|
|
for i, (doc, label) in backlinks:
|
|
if isinstance(label, str):
|
|
ref = nodes.reference("", nodes.Text("[{}]".format(i)), internal=True)
|
|
try:
|
|
ref['refuri'] = "{}#{}".format(
|
|
app.builder.get_relative_uri(fromdocname, doc),
|
|
label,
|
|
)
|
|
except NoUri:
|
|
continue
|
|
node += ref
|
|
row += nodes.entry('', node)
|
|
|
|
body += row
|
|
|
|
for node in doctree.findall(audit_event_list):
|
|
node.replace_self(table)
|
|
|
|
|
|
def patch_pairindextypes(app, _env) -> None:
|
|
"""Remove all entries from ``pairindextypes`` before writing POT files.
|
|
|
|
We want to run this just before writing output files, as the check to
|
|
circumvent is in ``I18nBuilder.write_doc()``.
|
|
As such, we link this to ``env-check-consistency``, even though it has
|
|
nothing to do with the environment consistency check.
|
|
"""
|
|
if app.builder.name != 'gettext':
|
|
return
|
|
|
|
# allow translating deprecated index entries
|
|
try:
|
|
from sphinx.domains.python import pairindextypes
|
|
except ImportError:
|
|
pass
|
|
else:
|
|
# Sphinx checks if a 'pair' type entry on an index directive is one of
|
|
# the Sphinx-translated pairindextypes values. As we intend to move
|
|
# away from this, we need Sphinx to believe that these values don't
|
|
# exist, by deleting them when using the gettext builder.
|
|
pairindextypes.clear()
|
|
|
|
|
|
def setup(app):
|
|
app.add_role('issue', issue_role)
|
|
app.add_role('gh', gh_issue_role)
|
|
app.add_directive('impl-detail', ImplementationDetail)
|
|
app.add_directive('availability', Availability)
|
|
app.add_directive('audit-event', AuditEvent)
|
|
app.add_directive('audit-event-table', AuditEventListDirective)
|
|
app.add_directive('deprecated-removed', DeprecatedRemoved)
|
|
app.add_builder(PydocTopicsBuilder)
|
|
app.add_object_type('opcode', 'opcode', '%s (opcode)', parse_opcode_signature)
|
|
app.add_object_type('pdbcommand', 'pdbcmd', '%s (pdb command)', parse_pdb_command)
|
|
app.add_object_type('monitoring-event', 'monitoring-event', '%s (monitoring event)', parse_monitoring_event)
|
|
app.add_directive_to_domain('py', 'decorator', PyDecoratorFunction)
|
|
app.add_directive_to_domain('py', 'decoratormethod', PyDecoratorMethod)
|
|
app.add_directive_to_domain('py', 'coroutinefunction', PyCoroutineFunction)
|
|
app.add_directive_to_domain('py', 'coroutinemethod', PyCoroutineMethod)
|
|
app.add_directive_to_domain('py', 'awaitablefunction', PyAwaitableFunction)
|
|
app.add_directive_to_domain('py', 'awaitablemethod', PyAwaitableMethod)
|
|
app.add_directive_to_domain('py', 'abstractmethod', PyAbstractMethod)
|
|
app.add_directive('miscnews', MiscNews)
|
|
app.connect('env-check-consistency', patch_pairindextypes)
|
|
app.connect('doctree-resolved', process_audit_events)
|
|
app.connect('env-merge-info', audit_events_merge)
|
|
app.connect('env-purge-doc', audit_events_purge)
|
|
return {'version': '1.0', 'parallel_read_safe': True}
|