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# -*- coding: utf-8 -*-
"""
sphinx.builders.devhelp
~~~~~~~~~~~~~~~~~~~~~~~
Build HTML documentation and Devhelp_ support files.
.. _Devhelp: https://wiki.gnome.org/Apps/Devhelp
:copyright: Copyright 2007-2018 by the Sphinx team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
from __future__ import absolute_import
import re
import gzip
from os import path
from docutils import nodes
from sphinx import addnodes
from sphinx.util import logging
from sphinx.util.osutil import make_filename
from sphinx.builders.html import StandaloneHTMLBuilder
from sphinx.environment.adapters.indexentries import IndexEntries
try:
import xml.etree.ElementTree as etree
except ImportError:
import lxml.etree as etree # type: ignore
if False:
# For type annotation
from typing import Any, Dict, List # NOQA
from sphinx.application import Sphinx # NOQA
logger = logging.getLogger(__name__)
class DevhelpBuilder(StandaloneHTMLBuilder):
"""
Builder that also outputs GNOME Devhelp file.
"""
name = 'devhelp'
epilog = ('To view the help file:\n'
'$ mkdir -p $HOME/.local/share/devhelp/%(project)s\n'
'$ ln -s %(outdir)s $HOME/.local/share/devhelp/%(project)s\n'
'$ devhelp')
# don't copy the reST source
copysource = False
supported_image_types = ['image/png', 'image/gif', 'image/jpeg']
# don't add links
add_permalinks = False
# don't add sidebar etc.
embedded = True
def init(self):
# type: () -> None
StandaloneHTMLBuilder.init(self)
self.out_suffix = '.html'
self.link_suffix = '.html'
def handle_finish(self):
# type: () -> None
self.build_devhelp(self.outdir, self.config.devhelp_basename)
def build_devhelp(self, outdir, outname):
# type: (unicode, unicode) -> None
logger.info('dumping devhelp index...')
# Basic info
root = etree.Element('book',
title=self.config.html_title,
name=self.config.project,
link="index.html",
version=self.config.version)
tree = etree.ElementTree(root)
# TOC
chapters = etree.SubElement(root, 'chapters')
tocdoc = self.env.get_and_resolve_doctree(
self.config.master_doc, self, prune_toctrees=False)
def write_toc(node, parent):
# type: (nodes.Node, nodes.Node) -> None
if isinstance(node, addnodes.compact_paragraph) or \
isinstance(node, nodes.bullet_list):
for subnode in node:
write_toc(subnode, parent)
elif isinstance(node, nodes.list_item):
item = etree.SubElement(parent, 'sub')
for subnode in node:
write_toc(subnode, item)
elif isinstance(node, nodes.reference):
parent.attrib['link'] = node['refuri']
parent.attrib['name'] = node.astext()
def istoctree(node):
# type: (nodes.Node) -> bool
return isinstance(node, addnodes.compact_paragraph) and \
'toctree' in node
for node in tocdoc.traverse(istoctree):
write_toc(node, chapters)
# Index
functions = etree.SubElement(root, 'functions')
index = IndexEntries(self.env).create_index(self)
def write_index(title, refs, subitems):
# type: (unicode, List[Any], Any) -> None
if len(refs) == 0:
pass
elif len(refs) == 1:
etree.SubElement(functions, 'function',
name=title, link=refs[0][1])
else:
for i, ref in enumerate(refs):
etree.SubElement(functions, 'function',
name="[%d] %s" % (i, title),
link=ref[1])
if subitems:
parent_title = re.sub(r'\s*\(.*\)\s*$', '', title)
for subitem in subitems:
write_index("%s %s" % (parent_title, subitem[0]),
subitem[1], [])
for (key, group) in index:
for title, (refs, subitems, key) in group:
write_index(title, refs, subitems)
# Dump the XML file
xmlfile = path.join(outdir, outname + '.devhelp.gz')
with gzip.open(xmlfile, 'w') as f: # type: ignore
tree.write(f, 'utf-8')
def setup(app):
# type: (Sphinx) -> Dict[unicode, Any]
app.setup_extension('sphinx.builders.html')
app.add_builder(DevhelpBuilder)
app.add_config_value('devhelp_basename', lambda self: make_filename(self.project), None)
return {
'version': 'builtin',
'parallel_read_safe': True,
'parallel_write_safe': True,
}
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