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"""Docutils-native XML and pseudo-XML builders."""
from os import path
from typing import Any, Dict, Iterator, Optional, Set, Type, Union
from docutils import nodes
from docutils.io import StringOutput
from docutils.nodes import Node
from docutils.writers.docutils_xml import XMLTranslator
from sphinx.application import Sphinx
from sphinx.builders import Builder
from sphinx.locale import __
from sphinx.util import logging
from sphinx.util.osutil import ensuredir, os_path
from sphinx.writers.xml import PseudoXMLWriter, XMLWriter
logger = logging.getLogger(__name__)
class XMLBuilder(Builder):
"""
Builds Docutils-native XML.
"""
name = 'xml'
format = 'xml'
epilog = __('The XML files are in %(outdir)s.')
out_suffix = '.xml'
allow_parallel = True
_writer_class: Union[Type[XMLWriter], Type[PseudoXMLWriter]] = XMLWriter
default_translator_class = XMLTranslator
def init(self) -> None:
pass
def get_outdated_docs(self) -> Iterator[str]:
for docname in self.env.found_docs:
if docname not in self.env.all_docs:
yield docname
continue
targetname = path.join(self.outdir, docname + self.out_suffix)
try:
targetmtime = path.getmtime(targetname)
except Exception:
targetmtime = 0
try:
srcmtime = path.getmtime(self.env.doc2path(docname))
if srcmtime > targetmtime:
yield docname
except OSError:
# source doesn't exist anymore
pass
def get_target_uri(self, docname: str, typ: Optional[str] = None) -> str:
return docname
def prepare_writing(self, docnames: Set[str]) -> None:
self.writer = self._writer_class(self)
def write_doc(self, docname: str, doctree: Node) -> None:
# work around multiple string % tuple issues in docutils;
# replace tuples in attribute values with lists
doctree = doctree.deepcopy()
for domain in self.env.domains.values():
xmlns = "xmlns:" + domain.name
doctree[xmlns] = "https://www.sphinx-doc.org/" # type: ignore
for node in doctree.findall(nodes.Element):
for att, value in node.attributes.items():
if isinstance(value, tuple):
node.attributes[att] = list(value)
value = node.attributes[att]
if isinstance(value, list):
for i, val in enumerate(value):
if isinstance(val, tuple):
value[i] = list(val)
destination = StringOutput(encoding='utf-8')
self.writer.write(doctree, destination)
outfilename = path.join(self.outdir, os_path(docname) + self.out_suffix)
ensuredir(path.dirname(outfilename))
try:
with open(outfilename, 'w', encoding='utf-8') as f:
f.write(self.writer.output)
except OSError as err:
logger.warning(__("error writing file %s: %s"), outfilename, err)
def finish(self) -> None:
pass
class PseudoXMLBuilder(XMLBuilder):
"""
Builds pseudo-XML for display purposes.
"""
name = 'pseudoxml'
format = 'pseudoxml'
epilog = __('The pseudo-XML files are in %(outdir)s.')
out_suffix = '.pseudoxml'
_writer_class = PseudoXMLWriter
def setup(app: Sphinx) -> Dict[str, Any]:
app.add_builder(XMLBuilder)
app.add_builder(PseudoXMLBuilder)
app.add_config_value('xml_pretty', True, 'env')
return {
'version': 'builtin',
'parallel_read_safe': True,
'parallel_write_safe': True,
}
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