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"""Texinfo builder."""
from __future__ import annotations
import os
import warnings
from os import path
from typing import Any, Iterable
from docutils import nodes
from docutils.frontend import OptionParser
from docutils.io import FileOutput
from docutils.nodes import Node
from sphinx import addnodes, package_dir
from sphinx.application import Sphinx
from sphinx.builders import Builder
from sphinx.config import Config
from sphinx.environment.adapters.asset import ImageAdapter
from sphinx.errors import NoUri
from sphinx.locale import _, __
from sphinx.util import logging
from sphinx.util.console import darkgreen # type: ignore
from sphinx.util.display import progress_message, status_iterator
from sphinx.util.docutils import new_document
from sphinx.util.fileutil import copy_asset_file
from sphinx.util.nodes import inline_all_toctrees
from sphinx.util.osutil import SEP, ensuredir, make_filename_from_project
from sphinx.writers.texinfo import TexinfoTranslator, TexinfoWriter
logger = logging.getLogger(__name__)
template_dir = os.path.join(package_dir, 'templates', 'texinfo')
class TexinfoBuilder(Builder):
"""
Builds Texinfo output to create Info documentation.
"""
name = 'texinfo'
format = 'texinfo'
epilog = __('The Texinfo files are in %(outdir)s.')
if os.name == 'posix':
epilog += __("\nRun 'make' in that directory to run these through "
"makeinfo\n"
"(use 'make info' here to do that automatically).")
supported_image_types = ['image/png', 'image/jpeg',
'image/gif']
default_translator_class = TexinfoTranslator
def init(self) -> None:
self.docnames: Iterable[str] = []
self.document_data: list[tuple[str, str, str, str, str, str, str, bool]] = []
def get_outdated_docs(self) -> str | list[str]:
return 'all documents' # for now
def get_target_uri(self, docname: str, typ: str | None = None) -> str:
if docname not in self.docnames:
raise NoUri(docname, typ)
return '%' + docname
def get_relative_uri(self, from_: str, to: str, typ: str | None = None) -> str:
# ignore source path
return self.get_target_uri(to, typ)
def init_document_data(self) -> None:
preliminary_document_data = [list(x) for x in self.config.texinfo_documents]
if not preliminary_document_data:
logger.warning(__('no "texinfo_documents" config value found; no documents '
'will be written'))
return
# assign subdirs to titles
self.titles: list[tuple[str, str]] = []
for entry in preliminary_document_data:
docname = entry[0]
if docname not in self.env.all_docs:
logger.warning(__('"texinfo_documents" config value references unknown '
'document %s'), docname)
continue
self.document_data.append(entry) # type: ignore
if docname.endswith(SEP + 'index'):
docname = docname[:-5]
self.titles.append((docname, entry[2]))
def write(self, *ignored: Any) -> None:
self.init_document_data()
self.copy_assets()
for entry in self.document_data:
docname, targetname, title, author = entry[:4]
targetname += '.texi'
direntry = description = category = ''
if len(entry) > 6:
direntry, description, category = entry[4:7]
toctree_only = False
if len(entry) > 7:
toctree_only = entry[7]
destination = FileOutput(
destination_path=path.join(self.outdir, targetname),
encoding='utf-8')
with progress_message(__("processing %s") % targetname):
appendices = self.config.texinfo_appendices or []
doctree = self.assemble_doctree(docname, toctree_only, appendices=appendices)
with progress_message(__("writing")):
self.post_process_images(doctree)
docwriter = TexinfoWriter(self)
with warnings.catch_warnings():
warnings.filterwarnings('ignore', category=DeprecationWarning)
# DeprecationWarning: The frontend.OptionParser class will be replaced
# by a subclass of argparse.ArgumentParser in Docutils 0.21 or later.
settings: Any = OptionParser(
defaults=self.env.settings,
components=(docwriter,),
read_config_files=True).get_default_values()
settings.author = author
settings.title = title
settings.texinfo_filename = targetname[:-5] + '.info'
settings.texinfo_elements = self.config.texinfo_elements
settings.texinfo_dir_entry = direntry or ''
settings.texinfo_dir_category = category or ''
settings.texinfo_dir_description = description or ''
settings.docname = docname
doctree.settings = settings
docwriter.write(doctree, destination)
self.copy_image_files(targetname[:-5])
def assemble_doctree(
self, indexfile: str, toctree_only: bool, appendices: list[str],
) -> nodes.document:
self.docnames = set([indexfile] + appendices)
logger.info(darkgreen(indexfile) + " ", nonl=True)
tree = self.env.get_doctree(indexfile)
tree['docname'] = indexfile
if toctree_only:
# extract toctree nodes from the tree and put them in a
# fresh document
new_tree = new_document('<texinfo output>')
new_sect = nodes.section()
new_sect += nodes.title('<Set title in conf.py>',
'<Set title in conf.py>')
new_tree += new_sect
for node in tree.findall(addnodes.toctree):
new_sect += node
tree = new_tree
largetree = inline_all_toctrees(self, self.docnames, indexfile, tree,
darkgreen, [indexfile])
largetree['docname'] = indexfile
for docname in appendices:
appendix = self.env.get_doctree(docname)
appendix['docname'] = docname
largetree.append(appendix)
logger.info('')
logger.info(__("resolving references..."))
self.env.resolve_references(largetree, indexfile, self)
# TODO: add support for external :ref:s
for pendingnode in largetree.findall(addnodes.pending_xref):
docname = pendingnode['refdocname']
sectname = pendingnode['refsectname']
newnodes: list[Node] = [nodes.emphasis(sectname, sectname)]
for subdir, title in self.titles:
if docname.startswith(subdir):
newnodes.append(nodes.Text(_(' (in ')))
newnodes.append(nodes.emphasis(title, title))
newnodes.append(nodes.Text(')'))
break
else:
pass
pendingnode.replace_self(newnodes)
return largetree
def copy_assets(self) -> None:
self.copy_support_files()
def copy_image_files(self, targetname: str) -> None:
if self.images:
stringify_func = ImageAdapter(self.app.env).get_original_image_uri
for src in status_iterator(self.images, __('copying images... '), "brown",
len(self.images), self.app.verbosity,
stringify_func=stringify_func):
dest = self.images[src]
try:
imagedir = path.join(self.outdir, targetname + '-figures')
ensuredir(imagedir)
copy_asset_file(path.join(self.srcdir, src),
path.join(imagedir, dest))
except Exception as err:
logger.warning(__('cannot copy image file %r: %s'),
path.join(self.srcdir, src), err)
def copy_support_files(self) -> None:
try:
with progress_message(__('copying Texinfo support files')):
logger.info('Makefile ', nonl=True)
copy_asset_file(os.path.join(template_dir, 'Makefile'), self.outdir)
except OSError as err:
logger.warning(__("error writing file Makefile: %s"), err)
def default_texinfo_documents(
config: Config,
) -> list[tuple[str, str, str, str, str, str, str]]:
""" Better default texinfo_documents settings. """
filename = make_filename_from_project(config.project)
return [(config.root_doc, filename, config.project, config.author, filename,
'One line description of project', 'Miscellaneous')]
def setup(app: Sphinx) -> dict[str, Any]:
app.add_builder(TexinfoBuilder)
app.add_config_value('texinfo_documents', default_texinfo_documents, False)
app.add_config_value('texinfo_appendices', [], False)
app.add_config_value('texinfo_elements', {}, False)
app.add_config_value('texinfo_domain_indices', True, False, [list])
app.add_config_value('texinfo_show_urls', 'footnote', False)
app.add_config_value('texinfo_no_detailmenu', False, False)
app.add_config_value('texinfo_cross_references', True, False)
return {
'version': 'builtin',
'parallel_read_safe': True,
'parallel_write_safe': True,
}
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