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81 lines
2.9 KiB
81 lines
2.9 KiB
"""
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sphinx.environment.collectors
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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The data collector components for sphinx.environment.
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:copyright: Copyright 2007-2020 by the Sphinx team, see AUTHORS.
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:license: BSD, see LICENSE for details.
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"""
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from typing import Dict, List, Set
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from docutils import nodes
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from sphinx.environment import BuildEnvironment
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if False:
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# For type annotation
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from sphinx.application import Sphinx
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class EnvironmentCollector:
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"""An EnvironmentCollector is a specific data collector from each document.
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It gathers data and stores :py:class:`BuildEnvironment
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<sphinx.environment.BuildEnvironment>` as a database. Examples of specific
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data would be images, download files, section titles, metadatas, index
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entries and toctrees, etc.
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"""
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listener_ids = None # type: Dict[str, int]
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def enable(self, app: "Sphinx") -> None:
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assert self.listener_ids is None
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self.listener_ids = {
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'doctree-read': app.connect('doctree-read', self.process_doc),
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'env-merge-info': app.connect('env-merge-info', self.merge_other),
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'env-purge-doc': app.connect('env-purge-doc', self.clear_doc),
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'env-get-updated': app.connect('env-get-updated', self.get_updated_docs),
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'env-get-outdated': app.connect('env-get-outdated', self.get_outdated_docs),
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}
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def disable(self, app: "Sphinx") -> None:
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assert self.listener_ids is not None
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for listener_id in self.listener_ids.values():
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app.disconnect(listener_id)
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self.listener_ids = None
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def clear_doc(self, app: "Sphinx", env: BuildEnvironment, docname: str) -> None:
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"""Remove specified data of a document.
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This method is called on the removal of the document."""
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raise NotImplementedError
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def merge_other(self, app: "Sphinx", env: BuildEnvironment,
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docnames: Set[str], other: BuildEnvironment) -> None:
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"""Merge in specified data regarding docnames from a different `BuildEnvironment`
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object which coming from a subprocess in parallel builds."""
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raise NotImplementedError
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def process_doc(self, app: "Sphinx", doctree: nodes.document) -> None:
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"""Process a document and gather specific data from it.
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This method is called after the document is read."""
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raise NotImplementedError
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def get_updated_docs(self, app: "Sphinx", env: BuildEnvironment) -> List[str]:
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"""Return a list of docnames to re-read.
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This methods is called after reading the whole of documents (experimental).
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"""
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return []
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def get_outdated_docs(self, app: "Sphinx", env: BuildEnvironment,
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added: Set[str], changed: Set[str], removed: Set[str]) -> List[str]:
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"""Return a list of docnames to re-read.
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This methods is called before reading the documents.
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"""
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return []
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