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"""Single HTML builders."""
from __future__ import annotations
from os import path
from typing import TYPE_CHECKING, Any
from docutils import nodes
from sphinx.builders.html import StandaloneHTMLBuilder
from sphinx.environment.adapters.toctree import global_toctree_for_doc
from sphinx.locale import __
from sphinx.util import logging
from sphinx.util.console import darkgreen # type: ignore[attr-defined]
from sphinx.util.display import progress_message
from sphinx.util.nodes import inline_all_toctrees
if TYPE_CHECKING:
from docutils.nodes import Node
from sphinx.application import Sphinx
logger = logging.getLogger(__name__)
class SingleFileHTMLBuilder(StandaloneHTMLBuilder):
"""
A StandaloneHTMLBuilder subclass that puts the whole document tree on one
HTML page.
"""
name = 'singlehtml'
epilog = __('The HTML page is in %(outdir)s.')
copysource = False
def get_outdated_docs(self) -> str | list[str]: # type: ignore[override]
return 'all documents'
def get_target_uri(self, docname: str, typ: str | None = None) -> str:
if docname in self.env.all_docs:
# all references are on the same page...
return self.config.root_doc + self.out_suffix + \
'#document-' + docname
else:
# chances are this is a html_additional_page
return docname + self.out_suffix
def get_relative_uri(self, from_: str, to: str, typ: str | None = None) -> str:
# ignore source
return self.get_target_uri(to, typ)
def fix_refuris(self, tree: Node) -> None:
# fix refuris with double anchor
fname = self.config.root_doc + self.out_suffix
for refnode in tree.findall(nodes.reference):
if 'refuri' not in refnode:
continue
refuri = refnode['refuri']
hashindex = refuri.find('#')
if hashindex < 0:
continue
hashindex = refuri.find('#', hashindex + 1)
if hashindex >= 0:
refnode['refuri'] = fname + refuri[hashindex:]
def _get_local_toctree(self, docname: str, collapse: bool = True, **kwargs: Any) -> str:
if isinstance(includehidden := kwargs.get('includehidden'), str):
if includehidden.lower() == 'false':
kwargs['includehidden'] = False
elif includehidden.lower() == 'true':
kwargs['includehidden'] = True
if kwargs.get('maxdepth') == '':
kwargs.pop('maxdepth')
toctree = global_toctree_for_doc(self.env, docname, self, collapse=collapse, **kwargs)
if toctree is not None:
self.fix_refuris(toctree)
return self.render_partial(toctree)['fragment']
def assemble_doctree(self) -> nodes.document:
master = self.config.root_doc
tree = self.env.get_doctree(master)
tree = inline_all_toctrees(self, set(), master, tree, darkgreen, [master])
tree['docname'] = master
self.env.resolve_references(tree, master, self)
self.fix_refuris(tree)
return tree
def assemble_toc_secnumbers(self) -> dict[str, dict[str, tuple[int, ...]]]:
# Assemble toc_secnumbers to resolve section numbers on SingleHTML.
# Merge all secnumbers to single secnumber.
#
# Note: current Sphinx has refid confliction in singlehtml mode.
# To avoid the problem, it replaces key of secnumbers to
# tuple of docname and refid.
#
# There are related codes in inline_all_toctres() and
# HTMLTranslter#add_secnumber().
new_secnumbers: dict[str, tuple[int, ...]] = {}
for docname, secnums in self.env.toc_secnumbers.items():
for id, secnum in secnums.items():
alias = f"{docname}/{id}"
new_secnumbers[alias] = secnum
return {self.config.root_doc: new_secnumbers}
def assemble_toc_fignumbers(self) -> dict[str, dict[str, dict[str, tuple[int, ...]]]]:
# Assemble toc_fignumbers to resolve figure numbers on SingleHTML.
# Merge all fignumbers to single fignumber.
#
# Note: current Sphinx has refid confliction in singlehtml mode.
# To avoid the problem, it replaces key of secnumbers to
# tuple of docname and refid.
#
# There are related codes in inline_all_toctres() and
# HTMLTranslter#add_fignumber().
new_fignumbers: dict[str, dict[str, tuple[int, ...]]] = {}
# {'foo': {'figure': {'id2': (2,), 'id1': (1,)}}, 'bar': {'figure': {'id1': (3,)}}}
for docname, fignumlist in self.env.toc_fignumbers.items():
for figtype, fignums in fignumlist.items():
alias = f"{docname}/{figtype}"
new_fignumbers.setdefault(alias, {})
for id, fignum in fignums.items():
new_fignumbers[alias][id] = fignum
return {self.config.root_doc: new_fignumbers}
def get_doc_context(self, docname: str, body: str, metatags: str) -> dict[str, Any]:
# no relation links...
toctree = global_toctree_for_doc(self.env, self.config.root_doc, self, collapse=False)
# if there is no toctree, toc is None
if toctree:
self.fix_refuris(toctree)
toc = self.render_partial(toctree)['fragment']
display_toc = True
else:
toc = ''
display_toc = False
return {
'parents': [],
'prev': None,
'next': None,
'docstitle': None,
'title': self.config.html_title,
'meta': None,
'body': body,
'metatags': metatags,
'rellinks': [],
'sourcename': '',
'toc': toc,
'display_toc': display_toc,
}
def write(self, *ignored: Any) -> None:
docnames = self.env.all_docs
with progress_message(__('preparing documents')):
self.prepare_writing(docnames) # type: ignore[arg-type]
with progress_message(__('assembling single document')):
doctree = self.assemble_doctree()
self.env.toc_secnumbers = self.assemble_toc_secnumbers()
self.env.toc_fignumbers = self.assemble_toc_fignumbers()
with progress_message(__('writing')):
self.write_doc_serialized(self.config.root_doc, doctree)
self.write_doc(self.config.root_doc, doctree)
def finish(self) -> None:
self.write_additional_files()
self.copy_image_files()
self.copy_download_files()
self.copy_static_files()
self.copy_extra_files()
self.write_buildinfo()
self.dump_inventory()
@progress_message(__('writing additional files'))
def write_additional_files(self) -> None:
# no indices or search pages are supported
# additional pages from conf.py
for pagename, template in self.config.html_additional_pages.items():
logger.info(' ' + pagename, nonl=True)
self.handle_page(pagename, {}, template)
if self.config.html_use_opensearch:
logger.info(' opensearch', nonl=True)
fn = path.join(self.outdir, '_static', 'opensearch.xml')
self.handle_page('opensearch', {}, 'opensearch.xml', outfilename=fn)
def setup(app: Sphinx) -> dict[str, Any]:
app.setup_extension('sphinx.builders.html')
app.add_builder(SingleFileHTMLBuilder)
app.add_config_value('singlehtml_sidebars', lambda self: self.html_sidebars, 'html')
return {
'version': 'builtin',
'parallel_read_safe': True,
'parallel_write_safe': True,
}
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